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In the music world, Yamaha is one of the heavy hitters. If you were in band at school or have ever seen a live performance, chances are you have looked at a huge amount of Yamaha instruments.

While we’ll be talking about the best Yamaha digital pianos out there, the company also makes an almost countless number of other products – strings, marching instruments, grand pianos, guitars and basses just to name a few.

You have most likely felt this exact same connection when you went to see your favorite band live at a concert. The feeling is hard to articulate, but unequivocally present. Yamaha aims to share this primal feeling with as many people as possible.

From 1900 on, Yamaha began creating acoustic pianos—initially focusing on uprights. This gives them well over a century’s worth of experience crafting pianos.

The first digital piano Yamaha released was the YP-40 in 1983 which will look, feel, and sound much different than the pristine Yamaha digital pianos that you will find on the market today.

Yamaha is, by a good margin, the largest maker of audio gear and musical instruments—rising far above companies like Gibson, Sennheiser, Shure, and Fender.

If you didn’t realize it was a tuning fork, don’t feel bad. I played on a Yamaha trumpet and stared at the logo on my case for 5 years before I knew what it was.

This series includes an onboard lesson function to teach the student music as an educational tool. The flagship model (Yamaha PSR-EW410) has the ability to capture external sounds using a sampler.

In recent years, Yamaha’s YPT series that we previously mentioned have been almost identical to the PSR-E models (e.g. YPT-270 & PSR-E273; YPT-370 & PSR-E373), the only difference being the body finish and availability (the YPT and PSR-E series target different geographic areas).

If you are looking to get a Yamaha digital piano, this is where you will start. The P-45 is Yamaha’s most affordable digital piano with fully weighted keys.

The AvantGrant Series gives you access to Spatial Acoustic Sampling, which offers the sound of theYamaha CFX and Bösendorfer Imperial grand pianos captured from four different mic positions and delivered via multi-speaker sound system to ensure the immersive playing experience.

While the CP Series isn’t updated frequently, Yamaha takes huge pride in the series, stating that “The CP4 is simply the best stage piano Yamaha has ever made.”

Yamaha recently introduced the CP73 and CP88 giving a lot of new features to an old lineup – NW-GH with synthetic ebony and ivory key tops, brand new sounds, and additional ports/jacks, to name a few.

An interesting feature of this series is that they are platform-focused meaning that Yamaha frequently sends out updates to improve the devices over time.

All of these instruments feature a big multi-touch screen which makes navigation much easier considering how many settings, sounds, and functions they offer.

The flagship arranger workstation in Yamah’s arsenal. The samples on the Genos are far and above in terms of quality—giving you access to the Yamaha CFX and C7 Grand pianos, for example.

Yamaha puts the sounds on their digital pianos in multiple ways. With digital pianos, there is typically one goal in mind: create the most accurate representation of a piano possible.

The latest iteration of Pure CF Sound Sampling, found in the Yamaha P-125, utilizes sympathetic string and key-off resonance to more accurately capture the sound of an authentic grand piano.

The Yamaha CFX tone is also coupled with Binaural Sampling to create three-dimensional sound so that when you are playing with headphones on, it acts as if the sound is coming from the piano rather than your headphones.

Every other sound engine I have mentioned so far has had the goal to create an authentic sounding piano. That’s not the case for the AWM2 and FM-X. You won’t find them in a digital piano, but in Yamaha’s music workstations and synthesizers.

Aside from these sampling and sound engines, there are other technologies that Yamaha uses to improve the sound of their products. I’d like to cover some of those here.

The trouble for companies like Yamaha is that not all grand pianos feel the same way when you play them, making it difficult to determine exactly what it should feel like.

The lower keys will have more resistance than the higher keys, similar to an acoustic piano. Yamaha digital pianos under$1500 will most likely have this type of action.

Note: Don’t confuse the new GrandTouch-S (‘S‘ stands for ‘Small’) with Yamaha’s flagship GrandTouch key action used in the more expensive Clavinova models.

If you have any personal experiences with Yamaha digital pianos or keyboards, feel free to let us know in the comments. If you liked the article, feel free to share it around.

yamaha ypg 625 replacement lcd screen made in china

This is a list of products made by Yamaha Corporation. This does not include products made by Bösendorfer, which has been a wholly owned subsidiary of Yamaha Corporation since February 1, 2008.

For products made by Yamaha Motor Company, see the list of Yamaha motorcycles. Yamaha Motor Company shares the brand name but has been a separate company since 1955.

In 1921, Yamaha acquired the Nishikawa & Sons in Yokohama after a death of its founder, and continued to manufacture the Nishikawa organs and pianos until 1936.

SG-25S / SG-25T (1991 by Yamaha custom shop, Yamaha Electric Guitars 25th Anniversary, based on SG-3000, S = pearl inlay on the body (hummingbird and floral), T = Takanaka model (tremolo and HSH pickups))

rotary sound amplifiers which produce Leslie speaker effects by rotating a series of speaker units instead of horns.Yamaha Natural Sound Speaker units

it supported Yamaha XG level 1, some of MU50 additions, DB50XG compatibilities, Roland GS in TG300B mode, OPL3 FM synthesizer, some emulation of Sound Blaster Pro (stereo 8-bit at 22 kHz) and MPU-401 (MIDI interface).

YMW820 (NSX-1) (2013) — AudioEngine series sound chip integrating: General MIDI sound with Yamaha XG effects, and either Real Acoustic Sound (RAS) or eVocaloid.

"Yamaha SG-60T (1973)". The guitar collection. Archived from the original on 2 May 2011. Retrieved 16 April 2011. - featured in Guitarist (magazine), Sept. 2006.

新電氣樂器 マグナオルガンの御紹介 [New Electric Musical Instrument — Introduction of Magna Organ] (in Japanese). Hamamatsu: 日本樂器製造株式會社 (Yamaha). October 1935. Archived from the original on 11 May 2013. 特許第一〇八六六四号, 同 第一一〇〇六八号, 同 第一一一二一六号

"History of Products - Yamaha Electronic Musical Instruments". Yamaha Corporation. Archived from the original on 15 December 2009. Retrieved 28 March 2011.

道志郎 [Shiro Michi] (1958). クリスマスメロディーズ・イン・ヤマハエレクトーン [Christmas Melodies in Yamaha Electone] (Vinyl record,LP,Single,Stereo) (in Japanese). Tokyo, Japan: Nippon Grammophon. YE-2 / JP-107. Christmas Melodies in Yamaha Electone / The first Electone prototype concept, named Type E-T, developed by Yamaha (Nippon Gakki) in the year 1958. / ...

8-Bit Keys (15 May 2016). "Ultima VI Introduction Music performed on vintage Yamaha PS-55". Archived from the original on 10 August 2017. Retrieved 7 May 2018 – via YouTube.

See also: JA patent application publication 1951-190, Dynamic Bracing on Yamaha Dynamic Guitar No.40 Archived 24 July 2015 at the Wayback Machine (jpg), and Performance by inventor Archived 24 July 2015 at the Wayback Machine (mp3).

"Yamaha/Dynamic Guitar No. 4/Acoustic Guitar/1960s" (in Japanese). Kitakata, Fukushima: Easy Guitars (used guitar shop). Archived from the original on 24 July 2015.

Michael Wright. "Yamaha SG - The Classic". Vintage Guitar Magazine (June 2003). Archived from the original on 18 October 2011. Retrieved 28 March 2011.

"BB Series - Electric bass guitars". jp.yamaha.com (in Japanese). Yamaha Corporation. Archived from the original on 28 June 2015. Retrieved 4 August 2015.

"Cool machines - Yamaha YIS PU-I-20" (in Japanese). Archived from the original on 25 September 2013. — a home automation system in 1982. Also system integration diagram is at the bottom of page.

"History of Products - Yamaha Electronic Musical Instruments". Yamaha Corporation. Archived from the original on 15 December 2009. Retrieved 28 March 2011.

yamaha ypg 625 replacement lcd screen made in china

Note: The manual is the correct one for your model. The Yamaha DGX-630 and YPG-635 are one and the same model, at least as far as the manual is concerned. Here’s an image from the 1st page of the manual.

The image shown in the link is for the LCD unit which is compatible with your model. The Yamaha part number is WN7448800 (see Parts List, Part #320) and the supplier linked above was only to show what it looked like and the cost. Also it shows that it is no longer available and you would need to contact either them or Yamaha for alternatives.

yamaha ypg 625 replacement lcd screen made in china

IMPORTANT NOTICEThis manual has been provided for the use of authorized Yamaha Retailers and their service personnel. It has been assumed thatbasic service procedures inherent to the industry, and more specifically Yamaha Products, are already known and understood by theusers, and have therefore not been restated.

Failure to follow appropriate service and safety procedures when servicing this product may result in personal injury, destruction of expensive components and failure of the product to perform as specified. Forthese reasons, we advise all Yamaha product owners that all service required should be performed by anauthorized Yamaha Retailer or the appointed service representative.

The data provided is believed to be accurate and applicable to the unit(s) indicated on the cover. The research engineering, andservice departments of Yamaha are continually striving to improve Yamaha products. Modifications are, therefore, inevitableand changes in specification are subject to change without notice or obligation to retrofit. Should any discrepancy appear toexist, please contact the distributor"s Service Division.

Static discharges can destroy expensive components. Discharge any static electricity your body may haveaccumulated by grounding yourself to the ground bus in the unit (heavy gauge black wires connect tothis bus.)Turn the unit OFF during disassembly and parts replacement. Recheck all work before you apply power tothe unit.

Destination*1 *4 LCD*1 *4 DJACK-CN301*1 *4 PNL-CN01*1 *4 PNR-CN02*1 *4 GHL88M-CN02*1 *4 AM-CN104*1 *5 PSW-CN501*1 *5 LCD*1 *5 PB-CN401*2 *5 TW(L)*2 *5 TW(R)*1 *9 Speaker Lch

Remove the lower case assembly. (See procedure 1.)Remove the DM circuit board. (See procedure 2.)Remove the four (4) screws marked [480J].The LCD unit can then be removed. (Fig.6)

LSI PIN DESCRIPTIONYMW767-VTZ (X6055A00) CPU ............................................. 20S1D13700F01A100 (X5422A00) LCD CONTROLLER ........... 21PD789022GB-A15-8E (XZ560100) CPU ................................ 21ISP1161A1BD (X5879A00) USB CONTROLLER ................... 22AK4385ET (X6040A00) DAC .................................................. 22

Data busPower supplyShift clockX driver enable chain clockPower supplyLatch pulseFrame signalGroundScan shift clockScan start pulseLCD power-down outputPower supply

PREPARATION1) PA-5D or PA-51 (AC adaptor) is used.2) Measuring instruments: frequency counter, level meter (with JIS-C filter)Note: Connect a stereo plug to the [PHONES/OUTPUT] jack at 33 ohms.3) Jigs: Foot switch (FC-4 or FC-5), USB cable, USB memory, USB-MIDI driver (*1)PC (Install a USB-MIDI driver (*1) in PC and finish the THROUGH setup.)*1 Obtain the USB-MIDI driver from CD-ROM (X7225A00) for DGX-620/YPG-625 or Yamaha official website.(URL>>http://www.yamahapkclub.com)

TEST PROCEDURE1) When the test program is started, TEST will be displayed on the LCD.2) Press the [-] or [+] button of the number buttons to select a test program item.3) Press the [START/STOP] button to execute the test.

(dBu=dBm)Test Descriptions, Judgment CriteriaContrast CheckSet the contrast knob to the legible position of LCD. When the contrast knob is turned clockwise(or counterclockwise), the LCD becomes blue (or white).Displays ROM (Program) version.

Checks the flash ROM that is connected to CPU bus.The check result appears on the LCD. Check that the LCD displays Flash Rom OK.(OK:Flash Rom OK, NG:Flash Rom NG)

007 USB Storage Chk Checks USB.(OK:USB Storage OK, NG:USB Storage NG)Connect a USB memory to the [USB TO DEVICE] jack with a USB cable, and execute the test.The test results appear on the LCD. Check that the LCD displays USB Storage OK.

Checks the switches on the panel.Press the switches on the LCD as instructed. A pre-assigned note is output when the switch ispressed. A rotary encoder is clockwise set up to UP and is counterclockwise set to DOWN.(See P.36 Table 1.) The check result appears on the LCD when all the switches are pressed asinstructed. Check that SW OK is displayed.Also, check that no key stick is existed.(OK:SW OK, NG:SW NG, When multiple switchs are pressed at the same time:Over Two)

Connect the foot switch (FC-4 or FC-5) to the [SUSTAIN] jack.Check that the C3 note is output when the [START/STOP] button is pressed while stepping thepedal and the C4 note is output when releasing the pedal. The sound stops when stepping thepedal again. Check that the LCD displays Pedal1 OK.(OK:Pedal1 OK, NG:Pedal1 NG)

Checks MIDI and USB.Connect the PC with a USB-MIDI driver installed and the [USB TO HOST] terminal using aUSB cable, and execute the test.(As for the PC, install a USB-MIDI driver in the PC and finish the THROUGH setup, inadvance.)Check that the C4 note is output and the LCD displays MIDI OK.(OK:MIDI OK, NG:MIDI NG)

Checks the ROM that is connected to the CPU.The test result appears on the LCD. Check that the LCD displays Rom OK.It takes about 20 seconds.(OK:Rom OK, NG:Rom NG)

Check the RAM that is connected to the CPU.The test results appear on the LCD. Check that the LCD displays Ram OK.It takes about 5 seconds.(OK:Ram OK, NG:Ram NG)

Checks the flash ROM that is connected to CPU bus.The check result appears on the LCD. Check that the LCD displays Flash Ram OK.It takes about 60 seconds.(OK:Flash Rom OK, NG:Flash Rom NG)

REMARKSDGX-620/YPG-625DGX-620(WF83800)YPG-625(WG39450)DGX-620YPG-625TWEETER(WG25900)(X7135B0)LESSON L,R,STARTP.A.T.ON/OFF,FUNCTIONMUSIC DATABASE SONG MEMORY STYLE,SONG(REPEAT&LEARN

PN SwitchCircuit BoardCircuit BoardCircuit BoardCircuit BoardCircuit BoardCircuit BoardCircuit BoardConnector AssemblyConnector AssemblyConnector AssemblyConnector AssemblyConnector AssemblySpongeLCDSpongeAdhesive TapeAdhesive TapeWheel AssemblyWheelSpringCircuit BoardGreaseEncoder KnobKnob,VPush KnobCushionCushionCircuit BoardLower Case AssemblyBottom BoardCushionCushionSpongeFront RailAngleKeyboard AssemblyBind Head Tapping Screw-BBind Head Tapping Screw-BBind Head Tapping Screw-BFlat Head Tapping Screw-BCircuit BoardDamper SheetDamper SheetBind Head Tapping Screw-B

0.1000 25V Z TATET0.1000 25V Z FORM.10.00 50.0V RX TP10.00 50.0V TP0.1000 50V J RX TP0.1000 50V JECQ-V1H104JL30.1000 50V J RX TP0.1000 50V JECQ-V1H104JL30.1000 50V J RX TP0.1000 50V JECQ-V1H104JL30.1000 50V J RX TP0.1000 50V JECQ-V1H104JL333.00 16.0V RX TP33.00 16.0V TP33.00 16.0V RX TP33.00 16.0V TP52147 4P TE52147 2P TE52147 3P TE52806-1910 19PIN51048 2P TE51048 2P TE51048 2P TE51048 2P TEXH 4P TE52147 5P TE52806 14P TE51048 3P TE51048 3P TE51048 4P TE51048 4P TE51048 5P TE51048 5P TE51048 3P TE51048 3P TE2A02G-01 X0 JI2A02-05 X0REB161 PVB 15FTSD 4A 250V (P)BA50BC0TBA50BC0TLA4625HEC0470-01-630HTJ-020-05AZYKB21-5006HTJ064-04AYKB21-5014 BLKJY-6314-01-020 BLKUSB 4P SEUSB 4P TEYKF45 4P SEBDL40-01CM08RB01 RX0.55 TINFL05RD200AT TATETEDX001-20UH TATEJIFL05RD200AT TATETEDX001-20UH TATEJIFL05RD200AT TATETEDX001-20UH TATEJIFL05RD200AT TATETEDX001-20UH TATEJIFL05RD200AT TATETEDX001-20UH TATEJIFL05RD200AT TATETE

US064100US063270US063270US064100US063270US063270UF037100UF066100UF066100US062100US062100UF037100US145100US063100US061470US061470US062100US062100US145100US145100US062100US062100US145100US145100UF037100US145100UF038100UF038100US145100US145100WA625700WF377500WA625700WF377500WD295300WG951300WD295400WG951500WG468500WD295500WG951700WA782100V2376600V9424900WH107100V9424900WH107100V9424900WH107100V9424900WH107100X6055A00X4374A00X5888A00X0158A00X7542A00X0158A00X7542A00X5422A00X7371A00X5879A00X7414A00X6040A00X2331A00X6905A00XZ560100X7523100X3485B00X4025D00X7234A00

yamaha ypg 625 replacement lcd screen made in china

/ SERVICE MANUAL DGX-620 YPG-625 CONTENTS SPECIFICATIONS .................................................................... 3 PANEL LAYOUT ........................................................................ 4 CIRCUIT BOARD LAYOUT & WIRING ..................................... 6 BLOCK DIAGRAM .................................................................... 8 DISASSEMBLY PROCEDURE ................................................. 9 LSI PIN DESCRIPTION .......................................................... 20 IC BLOCK DIAGRAM .............................................................. 23 CIRCUIT BOARDS ................................................................. 24 TEST PROGRAM ................................................................... 33 INITIALIZATION ...................................................................... 37 USER DATA BACKUP ............................................................. 38 MIDI IMPLEMENTATION CHART ........................................... 42 MIDI DATA FORMAT ............................................................... 43 PARTS LIST OVERALL CIRCUIT DIAGRAM PK 001760 HAMAMATSU, JAPAN Copyright (c) Yamaha Corporation. All rights reserved. PDF ’06.03

DGX-620/YPG-625 IMPORTANT NOTICE This manual has been provided for the use of authorized Yamaha Retailers and their service personnel. It has been assumed that basic service procedures inherent to the industry, and more specifically Yamaha Products, are already known and understood by the users, and have therefore not been restated. WARNING: Failure to follow appropriate service and safety procedures when servicing this product may result in per- sonal injury, destruction of expensive components and failure of the product to perform as specified. For these reasons, we advise all Yamaha product owners that all service required should be performed by an authorized Yamaha Retailer or the appointed service representative. IMPORTANT: This presentation or sale of this manual to any individual or firm does not constitute authorization certifi- cation, recognition of any applicable technical capabilities, or establish a principal-agent relationship of any form. The data provided is believed to be accurate and applicable to the unit(s) indicated on the cover. The research engineering, and service departments of Yamaha are continually striving to improve Yamaha products. Modifications are, therefore, inevitable and changes in specification are subject to change without notice or obligation to retrofit. Should any discrepancy appear to exist, please contact the distributor"s Service Division. WARNING: Static discharges can destroy expensive components. Discharge any static electricity your body may have accumulated by grounding yourself to the ground bus in the unit (heavy gauge black wires connect to this bus.) IMPORTANT: Turn the unit OFF during disassembly and parts replacement. Recheck all work before you apply power to the unit. WARNING: CHEMICAL CONTENT NOTICE! The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and/or plastic (Where applicable) components may also contain traces of chemicals found by the California Health and Welfare Agency (and possibly other entities) to cause cancer and/or birth defects or other reproductive harm. DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASON WHAT SO EVER! Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or expose eyes to solder/flux vapor! If you come in contact with solder or components located inside the enclosure of this product, wash your hands before handling food. WARNING Components having special characteristics are marked and must be replaced with parts having specification equal to those originally installed. SAVING DATA Saving and backing up your data The panel settings and some other types of data are not retained in memory when you turn off the power to the instrument. Save data you want to keep to the Registration Memory. Saved data may be lost due to malfunction or incorrect operation. Save important data to a USB storage device/or other external device such as a computer. Be sure to perform it Backing up the USB storage device/external media To protect against data loss through media damage, we recommend that you save your important data onto two USB storage devices/external media. Be sure to perform it 2

DGX-620/YPG-625 ■ SPECIFICATIONS Keyboards Effects • 88 Graded Hammer Standard keys (A-1–C7), with Touch • Reverb: 9 types Response. • Chorus: 4 types Display • Harmony: 26 types • 320 x 240 dots LCD display (backlit) Song Setup • 30 Preset Songs + 5 User Songs + Accessory CD-ROM Songs (70) • STANDBY/ON • Song Clear, Track Clear • MASTER VOLUME: MIN–MAX • Song Volume • LCD CONTRAST • Song Control: REPEAT & LEARN, A-B REPEAT, PAUSE, REW, FF, START/STOP Panel Controls • SONG, VOICE, STYLE, EASY SONG ARRANGER, Performance assistant technology P.A.T. ON/OFF, LESSON L, LESSON R, LESSON START, • Chord, Chord/Free, Melody, Chord/Melody METRONOME ON/OFF, PORTABLE GRAND, DEMO, Recording FUNCTION, MUSIC DATABASE, HARMONY ON/OFF, • Song DUAL ON/OFF, SPLIT ON/OFF, TEMPO/TAP, [0]–[9], [+], User Song: 5 Songs [-], CATEGORY, Dial, REPEAT & LEARN (ACMP ON/OFF), Recording Tracks: 1, 2, 3, 4, 5, STYLE A-B REPEAT (INTRO/ENDING/rit.), PAUSE (SYNC START), START/STOP, REW (MAIN/AUTO FILL), FF (SYNC STOP), MIDI REGIST MEMORY ([MEMORY/BANK], [1], [2]), • Local On/Off • Initial Send • External Clock SONG MEMORY (REC, [1]–[5], [A]), File Control [MENU], • Keyboard Out • Style Out • Song Out File Control [EXECUTE], [EXIT], [LYRICS], [SCORE], [CHORD FINGERING] Auxiliary jacks • PHONES/OUTPUT, DC IN 12V, USB TO HOST, Realtime Control USB TO DEVICE, SUSTAIN • Pitch Bend Wheel Ampli er Voice • 6W + 6W • 127 panel voices + 12 drum/SFX kits + 361 XGlite voices • Polyphony: 32 Speakers • DUAL • 12cm x 2 + 3cm x 2 • SPLIT Power Consumption • 22W Style • 150 Preset Styles + 1 User Style File Power Supply • Style Control: ACMP ON/OFF, SYNC STOP, SYNC START, • Adaptor: Yamaha PA-5D AC power adaptor START/STOP, INTRO/ENDING/rit., MAIN/AUTO FILL Dimensions (W x D x H) • Fingering: Multi Finger, Full Keyboard • 1,398 x 457 x 153 mm (55-1/16" x 18" x 6") • Style Volume • with keyboard stand: 1,405 x 485 x 773 mm (55-1/3" x 19-1/8" x 30-3/8") Music Database • 267 Weight • 18.0kg (39 lbs. 11 oz.) Education Feature • with keyboard stand: • Dictionary 25.5kg (56 lbs. 3 oz.) • Lesson 1–3, Repeat & Learn Supplied Accessories Registration Memory • Music Rest • Accessory CD-ROM • 8 banks x 2 types • Keyboard Stand • Owner’s Manual • Footswitch FC5 Function • AC Power adaptor (May not be included depending on your par- • VOLUME: Style Volume, Song Volume ticular area.) • OVERALL: Tuning, Transpose, Split Point, Touch Sensitiv- ity, Pitch Bend Range, Chord Fingering Optional Accessories • MAIN VOICE: Volume, Octave, Pan, Reverb Level, • Headphones: HPE-150 Chorus Level • DUAL VOICE: Volume, Octave, Pan, Reverb Level, Chorus Level • SPLIT VOICE: Volume, Octave, Pan, Reverb Level, Chorus Level • EFFECT: Reverb Type, Chorus Type, Master EQ Type, Sustain • HARMONY: Harmony Type, Harmony Volume • Performance assistant technology: Performance assistant technology Type • PC: PC Mode • MIDI: Local On/Off, External Clock, Initial Send, Keyboard Out, Style Out, Song Out • METRONOME: Time Signature Numerator, Time Signature Denominator, Metronome Volume • SCORE: Quantize • LESSON: Lesson Track (R), Lesson Track (L), Grade • UTILITY: Demo Cancel, Language 3

DGX-620/YPG-625 ■ PANEL LAYOUT • Front Panel e u i o q r t y !0 w !1 !2 !3 !4 !5 !6 !7 !8 !9 #4 • Front Panel q [STANDBY/ON] switch !4 [REPEAT & LEARN]/ [ACMP ON/OFF] button w [MASTER VOLUME control !5 [A-B REPEAT]/[INTRO/ENDING/rit.] button e FILE CONTROL [MENU], [EXECUTE] button !6 [REW]/[MAIN/AUTO FULL] button r [LYRICS] button !7 [FF]/[SYNC STOP] button t [SCORE] button !8 [PAUSE]/[SYNC START] button y [CHORD FINGERING] button !9 [START/STOP] button u [P.A.T. ON/OFF] button @0 [SONG] button i [MUSIC DATABASE] button @1 [EASY SONG] ARRANGER] button o [FUNCTION] button @2 [STYLE] button !0 LESSON [L],[R], [START] buttons @3 [VOICE] button !1 [METRONOME ON/OFF] button !2 [TEMPO/TAP] button !3 SONG MEMORY [REC], [1]-[5], [A] buttons 4

DGX-620/YPG-625 @0 @7 @1 @4 @6 @2 @3 @5 @8 #0 #1 #2 #3 @9 Rear Panel #5 #6 #7 #8 #9 • Rear Panel @4 Dial #5 CONTRAST knob @5 CATEGORY[ ] and [ ] buttons #6 USB TO DEVICE, TO HOST terminals @6 Number buttons [0]–[9],[+] and [-] buttons #7 SUSTAIN jack @7 [DEMO] button #8 PHONES/OUTPUT jack @8 [EXIT] button #9 DC IN 12V jack @9 REGIST MEMORY [MEMORY/BANK], [1], [2] buttons #0 [PORTABLE GRAND] button #1 [SPLIT ON/OFF] button #2 [DUAL ON/OFF] button #3 [HARMONY ON/OFF] button #4 [PITCH BEND] wheel 5

DGX-620/YPG-625 ■ CIRCUIT BOARDS LAYOUT & WIRING • Upper case Keyboard assembly PB MVR PNL AM LCD unit DM MKO ENC PNR < Bottom view > 15 15 TW (L) Speaker PSW DJACK Speaker TW (R) (Tweeter (L)) 13 10 7 9 8 3 6 1 5 2 4 11 (Tweeter (R)) • Lower case Speaker 12 14 Speaker (Woofer (L)) (Woofer (R)) • Keyboard assembly < Top view > 5 GHL88L GHL88M GHL88H 6

DGX-620/YPG-625 No. Location Part No. Connector Assembly Destination Remarks q -- -- Flexible flat cable DM-CN201 *1 *4 LCD *3 *4 14P w 240 WG317700 Flexible flat cable DM-CN301 *1 *4 DJACK-CN301 *1 *4 14P e 230 WG317600 Flexible flat cable DM-CN601 *1 *4 PNL-CN01 *1 *4 12P r 250 WG317800 Flexible flat cable DM-CN602 *1 *4 PNR-CN02 *1 *4 15P t 2 WG318100 Flexible flat cable DM-CN701 *1 *4 GHL88M-CN02 *1 *4 27P y 260 WG317900 Flexible flat cable DM-CN901 *1 *4 AM-CN104 *1 *4 19P u WH501 (WG45930) PSW AM-CN101 *1 *5 PSW-CN501 *2 *5 4P i 290 WB092100 BL AM-CN102 *1 *5 LCD *3 *6 2P o WH401 (WG46060) PB AM-CN103 *1 *5 PB-CN401 *2 *5 3P !0 WH201 (WG46040) TWL AM-CN201 *2 *5 TW(L) *3 *6 2P !1 WH202 (WG46050) TWR AM-CN202 *2 *5 TW(R) *3 *6 2P !2 30 (WG45880) SP2 AM-CN203 *1 *9 Speaker Lch *3 *9 4P Speaker Rch *3 *10 !3 WH601 (WG46070) MVR AM-CN204 *1 *5 MVR-CN601 *2 *5 5P !4 WH901 (WB09270) ENC PNR-CN03 *1 *5 ENC-CN901 *2 *5 3P !5 -- -- -- Speaker *11 -- TW *3 *10 2P X0159A00 * The parts with "( )" in "Part No." are not available as spare parts. * 1 : Installation * 2 : Dip soldering * 3 : Manual soldering * 4 : The conductor of a cable and the point of contact of a connector are untited. * 5 : Edge mark is adjusted to Pin 1 (왕) side. * 6 : Edge mark is connected to + side. * 7 : Edge mark is connected to + terminal. * 8 : White wire is adjusted to Pin 1 (왕) side. * 9 : White wire is connected to + terminal. * 10 : Red wire is connected to + terminal. * 11 : Connected Caution: Be sure to attach the removed filament tape just as it was before removal. 7

8 DGX-620/YPG-625 ■ BLOCK DIAGRAM USB SUSTAIN TO DEVICE TO HOST PB CONTRAST BACK LIGHT PSW VR301 PITCH BEND DJACK JK301 JK303 JK302 VR401 STANDBY/ON LCD CN401(3P) DISPLAY 320 X 240 STN SW501 CN301(14P) CN501(4P) CN301(14P) CN201(14P) CN103(3P) CN102(2P) CN101(4P) DM +5D +29V XD0-3 AM YD,LP IC102(3P) 6MHz USB DC/DC DATA ENTRY CONTROLLER CONVERTER +21~27V XCSL,WF 3 +5V 1 X301 IC902 (3P) IC301 REG. ENC (64P) IC202 +3.3D +3.3V 2 +3.3D (8P) +3.3D ROTARY ISP1161A REG. IC101(3P) ENCODER 56,58 7,12,22,25 LCDC 32,40,48,55 IC201 +2.5V 3 +5V 1 +3.3D +2.5D (64P) +2.5D +5D REG. +5D REG. IC102 (5P) S1D13700F00A IC901 (3P) 2 EC901 20 5 RESET PD3 *A *B CN901(3P) 4 16 MA0-23 3.6V ICN CS0:128M ROM +5D MD0-15 CS1:LCDC +5A D101 16.9344 MA/MD CS3:8M FLASH 12,13 MHz *A:24,47,66,90,120 +3.3D +3.3D +3.3D CS5:USBC CN03(3P) X101 *B:15,46,89,119 PD1,2 37 37 1,6 FZ001 IN[0-6] CPU 38 128M 8M 25 16M CN602(15P) CN02(15P) SW YMW767-V ROM FLASH DRAM DC IN 12V MATRIX PB0-7 PROG ROM TA601-604 IC101 /WAVE CN901(19P) CN104(19P) PA[4-7] (128P) IC802(48P) IC803(48P) IC804(50P) LED LED JK101 DRIVER PA0-7 IC501(10P) +3.3D SDI 41 RXD1 TXD1 SD0 2 PNR ADC PITCH BEND +5D 38 37 40 8bit CR701 +5A BCLK, WCLK +5A PNL 5MHz R704 8 14,15 18,38 DAC 14 7 2 1 L IC201(14P) SW IN[0-6] CPU 27 SYSCLK, BCLK, WCLK 24bit 8 LPF 14 CN601(12P) 7 R Vcc CN01(12P) MATRIX IC701 (44P) 6 JK201 2 PCM1742K L 1 11 PA[0-3] uPD789022GB 22 POWER AMP PHONES/ R 6 8 IC401(16P) IC402(8P) 6W X 2 OUTPUT LED LA4625 CN203(4P) CN701(27P) CN201 CN202(2P) (2P) CN204(5P) VR601 TWEETER TW (R) TW (L) TWEETER CN601(5P) 3cm 3cm Keyboard(GHL) 88KEY with touch response B[1-15] N[11-16] N[21-26] R L CN2(27P) MASTER MVR VOLUME WOOFER WOOFER GHL88L GHL88M GHL88H 12cm 12cm 4 4 CN1(17P) CN1(17P) CN3(17P) CN1(17P) PA-5D (AC Adaptor) (A-1~C2) (C#2~C5) (C#5~C7) 28CA1-2001000277

DGX-620/YPG-625 ■ DISASSEMBLY PROCEDURE Caution: 1) Flat cable’s contacts are visible from the back. Pay attention not to insert and install the cable to the connector inversely. (Fig.1) 2) Be sure to attach the removed filament tape just as it was before removal. 1. Lower Case Assembly (Time required: About 9 minutes) 1-1 Remove the twenty (20) screws marked [510A]. The bottom boards L and R can then be removed. (Fig.2) Front Side (Printed Side) Back side 1-2 Remove the thirty six (36) screws marked [500] and the forty six (46) screws marked [510B]. The lower case assembly can then be removed. (Fig.3) (Fig.1) [510A] Bottom Board (L) Bottom Board (R) [510A] (Fig.2) [510]: Bind Head Tapping Screw-B 4.0X16 MFZN2W3 (WF154100) [500] [500] [500] [500] [500] [510B] [510B] [500] [500] [500] [500] [500] (Fig.3) [500]: Bind Head Tapping Screw-B 4.0X12 MFZN2W3 (WE981200) [510]: Bind Head Tapping Screw-B 4.0X16 MFZN2W3 (WF154100) 9

DGX-620/YPG-625 2. DM Circuit Board (Time required: About 10 minutes) 2-1 Remove the lower case assembly. (See procedure 1.) 2-2 Remove the four (4) screws marked [480A]. The DM circuit board can then be removed. (Fig.4) Speaker Speaker (Tweeter(R)) (Tweeter(L)) TW (R) DJACK PSW TW (L) [480B] [480G] [480A] [480D] [480E] [480B] DM AM [480C] Upper Case PB Wheel Assembly (Fig.4) [480]: Bind Head Tapping Screw-B 3.0X8 MFZN2W3 (WE774300) 3. TW Circuit Board, Speaker (Tweeter) 5. AM Circuit Board (Time required: About 9 minutes) (Time required: About 10 minutes) 3-1 Remove the lower case assembly. (See procedure 1.) 5-1 Remove the lower case assembly. (See procedure 1.) 3-2 Remove the two (2) screws marked [480B]. The TW 5-2 Remove the seven (7) screws marked [480D]. The AM circuit board and speaker (tweeter) can then be removed. circuit board can then be removed. (Fig.4) (Fig.4) * The left and right speakers (tweeters) can be removed in 6. PSW Circuit Board the same way. (Time required: About 9 minutes) 6-1 Remove the lower case assembly. (See procedure 1.) 4. PB Circuit Board, Wheel Assembly 6-2 Remove the two (2) screws marked [480E]. (Time required: About 9 minutes) The PSW circuit board can then be removed. (Fig.4) 4-1 Remove the lower case assembly. (See procedure 1.) 4-2 Remove the two (2) screws marked [480C]. The PB 7. DJACK Circuit Board circuit board and the wheel assembly can then be (Time required: About 10 minutes) removed. (Fig.4) 7-1 Remove the lower case assembly. (See procedure 1.) * Make sure to mount the wheel assembly on the volume 7-2 Remove the three (3) screws marked [480G]. shaft of the PB circuit board by firmly inserting it into the The DJACK circuit board can then be removed. (Fig.4) shaft. 10

DGX-620/YPG-625 8. ENC Circuit Board Encoder knob (Time required: About 10 minutes) 8-1 Remove the lower case assembly. (See procedure 1.) 8-2 Remove the encoder knob from the control panel. (Fig.5) 8-3 Remove the four (4) screws marked [480H]. The ENC circuit board can then be removed. (Fig.6) (Fig.5) [480H] [480J] [480F] [480K] [480I] LCD Unit PNR ENC PNL MVR Upper Case (Fig.6) [480]: Bind Head Tapping Screw-B 3.0X8 MFZN2W3 (WE774300) 9. PNR Circuit Board (Time required: About 11 minutes) 9-1 Remove the lower case assembly. (See procedure 1.) Volume Knob 9-2 Remove the twelve (12) screws marked [480I]. The PNR circuit board can then be removed. (Fig.6) Cloth 10. MVR Circuit Board (Time required: About 10 minutes) 10-1 Remove the lower case assembly. (See procedure 1.) 10-2 Remove the volume knob from the control panel. (Fig.7) 10-3 Remove the three (3) screws marked [480K]. The MVR circuit board can then be removed. (Fig.6) (Fig.7) 11. PNL Circuit Board (Time required: About 12 minutes) 11-1 Remove the lower case assembly. (See procedure 1.) 11-2 Remove the AM circuit board. (See procedure 5.) 11-3 Remove the ten (10) screws marked [480F]. The PNL circuit board can then be removed. (Fig.6) 11

DGX-620/YPG-625 12. LCD Unit 13. Speaker (Woofer) (Time required: About 11 minutes) (Time required: About 10 minutes) 12-1 Remove the lower case assembly. (See procedure 1.) 13-1 Remove the lower case assembly. (See procedure 1.) 12-2 Remove the DM circuit board. (See procedure 2.) 13-2 Remove the four (4) screws marked [40]. The speaker 12-2 Remove the four (4) screws marked [480J]. (woofer) can then be removed. (Fig.8) The LCD unit can then be removed. (Fig.6) * The left and right speakers (woofers) can be removed in the same way. [40] Speaker Lower Case Speaker [40] (Woofer(L)) (Woofer(R)) (Fig.8) [40]: Bind Head Tapping Screw-B 4.0X12 MFZN2W3 (WE981200) 14. Keyboard Assembly The keyboard assembly can then be removed from the (Time required: About 13 minutes) upper case assembly. (Fig.9) 14-1 Remove the lower case assembly. (See procedure 1.) 14-2 Remove the six (6) screws marked [480L], the twelve (12) screws marked [480M] and the eight (8) screws marked [560]. [480L] [480L] [560] Upper Case [560] [560] Keyboard Assembly [480M] [480M] [480M] (Fig.9) [480]: Bind Head Tapping Screw-B 3.0X8 MFZN2W3 (WE774300) [560]: Bind Head Tapping Screw-B 3.0X20 MFZN2W3 (WF489300) 12

DGX-620/YPG-625 15. Disassembling the Keyboard Assembly 15-2 When removing white keys numbered as A-1 and B-1 15-1 White key assembly and black key assembly key and black key, remove two (2) screws marked Remove the four (4) screws marked [270A] fixing the [270B] and then lift the back of the keys and slide the black and white key assembly for one octave (C-B). black and white keys towards you. (Fig.10) To remove the back of the black and white key assembly 15-3 When removing the C7 key, remove a screw marked of each octave, while pushing the end lug of white keys [270C] and then lift the back of C7 key and slide it rearward and lifting the back of keys, slide the black and towards you. (Fig.10) white key assembly towards you. (Fig.10, Fig.11) Note: When removing white key assembly and black key assembly, be careful not to allow grease to attach to the circuit board and rubber contacts, etc. (Fig.11) [270B] [270A] [270A] [270A] [270A] [270A] [270A] [270A] [270C] A-1 Key One octave One octave One octave One octave One octave One octave One octave (C0-B0) (C1-B1) (C2-B2) (C3-B3) (C4-B4) (C5-B5) (C6-B6) C7 Key B-1 Key (Fig.10) [270]: Bind Head Tapping Screw-P 3.0X16 MFZN2W3 (WE973000) End lug of white key Rubber contact GHL88M Grease (Fig.11) 13

DGX-620/YPG-625 15-4 Actuate Rubber Remove the actuate rubber. (Fig.12) Remove in this way. 15-5 Rubber Contact Remove the black and white key assembly for two octaves related to the subject rubber contact. The rubber contact can then be removed. (Fig.13, Fig.14) * Note that the rubber contact has a specific installation Actuate rubber direction. * One rubber contact fits for C#-C (for C-B keys). (Fig.12) GHL88L GHL88M GHL88H Rubber contact Rubber contact Rubber contact Rubber contact Rubber contact Rubber contact Rubber contact Rubber contact [260A] [260B] [260C] (Fig.13) [260]: Bind Head Tapping Screw-P 2.6X8 MFZN2W3 (WF267300) One octave One octave (C-B) (C-B) One octave (C#-C) Rubber contact Key To remove the rubber contact for one octave, keys for 2 octaves need to be removed. (Fig.14) 14

DGX-620/YPG-625 15-6 GHL88L Circuit Board 15-7 GHL88M Circuit Board Remove the black and white key assembly (A1-B2). Remove the black and white key assembly (C1-B5). (See procedure 15-1.) (See procedure 15-1.) Remove the six (6) screws marked [260A]. The GHL88L Remove the seven (7) screws marked [260B]. The circuit board can then be removed. (Fig.13) GHL88M circuit board can then be removed. (Fig.13) Detach the filament tape and disconnect the FFC cable. (Fig.15) FFC cable FFC cable Keyboard assembly Filament tape Filament tape Frame CN2 (27P) Through hole CN2 GHL88M GHL88M (27P) (Fig.15) 15

DGX-620/YPG-625 15-8 GHL88H Circuit Board 15-9 Hammer (White Key), (Black Key) Remove the black and white key assembly (C5-C7). Remove the black and white key assembly for the (See procedure 15-1.) related keys. Remove the five (5) screws marked [260C]. The GHL88H With the key frame placed upside down, push the circuit board can then be removed. (Fig.13) hammer forward from the rear, then a click sound is heard and the hammer bearing section can be removed from the hammer axis of the key frame. Take out the hammer sideways. (Fig.16, Fig.17) * When removing the hammer, take care not to cause damage to the hammer bearing and its claw. Bearing claw Hammer axis Hammer, white key Bottom side Frame Push Hammer, black key (Fig.16) Hammer, B1 (black key) Hammer, W1 (white key) Bearing claw Bearing section (Fig.17) 16

DGX-620/YPG-625 16. Assembling the Keyboard Assembly Part Name Range for Applicable Tone Keys 16-1 Hammer (White Key), (Black Key) Hammer, W1 A-1 - F1 White Key After applying grease to the bearing section of the Hammer, W2 G1 - E3 hammer, bring the hammer (white key)(black key) Hammer, W3 F3 - D5 sideways from the rear, fit its bearing section to the Hammer, W4 E5 - C7 hammer axis of the key frame and pull it forward until a click sound is heard. (Fig.18) Hammer, B1 A#-1 - F#1 Black Key * There are 8 hammer types differing in weight. Be sure to Hammer, B2 G#1 - D#3 check the type of the hammer for correct installation. Hammer, B3 F#3 - C#5 (Table 1) Hammer, B4 D#5 - A#6 (Table 1) Bearing section Apply grease Hammer axis Hammer, white key Bottom side Hammer, black key Frame Pull forward (Fig.18) 17

DGX-620/YPG-625 16-2 GHL88L Circuit Board 16-4 GHL88H Circuit Board Tighten the six (6) screws marked [260A] to fix the Tighten the five (5) screws marked [260C] to fix the GHL88L circuit boards. (Fig.13) GHL88H circuit board. (Fig.13) 16-3 GHL88M Circuit Board 16-5 Rubber Contact Connect the FFC cable to CN2 of the GHL88M circuit Note that the rubber contact has s specific installation board, attach the filament tape. (Fig.15) direction. Be careful not to install it in the wrong Pass the end of the cable into the through hole in the direction. frame and pull it out from its outlet. (Fig.15) * A triangle mark (∆) on the rubber contact must face Tighten the seven (7) screws marked [260B] to fix the the front. (Fig.19) GHL88M circuit board. (Fig.13)) To prevent looseness of the rubber contact, fit it securely in place using a clip or similar object. (Fig.20) Rubber contact GHL88L Rubber contact Rubber contact Clip GHL88L (Fig.20) Front Triangle mark Triangle mark (Fig.19) 16-6 Actuate Rubber After applying grease to top and bottom faces of the actuate rubber, fit it to the white key (black key). (Fig.21) Fit in this way. Apply grease Actuate rubber (Fig.21) 18

DGX-620/YPG-625 16-7 White key assembly and black key assembly 16-8 Use the two (2) screws marked [270B] to fix the A-1 to After applying grease to the key guide, install the white B-1 keys. (Fig.10) key assembly/black key assembly. 16-9 Use a screw marked [270C] to fix the C7 key. (Fig.10) At this time, check to make sure that the key guide of the key frame and inside slit at the front of white key as well as the contact arm of the hammer and actuate rubber of the white key assembly/black key assembly are installed properly. (Fig.22) Use the four (4) screws marked [270A] to fix 1 octave white key assembly/black key assembly. (Fig.10) Actuate rubber Slit Actuate rubber Slit Key guide Contact arm Apply grease Hammer Key guide Contact arm (Fig.22) 19

DGX-620/YPG-625 ■ LSI PIN DESCRIPTION YMW767-VTZ (X6055A00) CPU ............................................. 20 S1D13700F01A100 (X5422A00) LCD CONTROLLER ........... 21 PD789022GB-A15-8E (XZ560100) CPU ................................ 21 ISP1161A1BD (X5879A00) USB CONTROLLER ................... 22 AK4385ET (X6040A00) DAC .................................................. 22 YMW767-VTZ (X6055A00) CPU DM: IC101 Pin Pin NAME I/O FUNCTION NAME I/O FUNCTION No. No. 1 VSS - VSS 65 VSS - VSS 2 TESTN I Input for TEST 66 IOVDD - IOVDD +3.3V 3 PLLBPN I PLL bypass select 67 LBN/LWRN/PF6 O External memory lower-byte enable 4 PLLVDD - PLLVDD +2.5V 68 UBN/UWRN/PF7 O External memory upper-byte enable 5 CIN - Capacitor terminal for PLL 69 RDN/PF4 O External memory read enable 6 PLLVSS - PLLVSS 70 MD00 I/O 7 TRSTN I 71 MD08 I/O 8 TMS I 72 MD01 I/O JTAG input 9 TCK I 73 MD09 I/O External memory data bus 10 TDI I 74 MD02 I/O 11 TD0 O JTAG output 75 MD10 I/O 12 XI I Crystal oscillator 76 MD03 I/O 13 XO O Crystal oscillator 77 VSS - VSS 14 VSS - VSS 78 MD11 I/O 15 VDD - VDD +2.5V 79 MD04 I/O 16 ICN I Hardware reset 80 MD12 I/O 17 ECSN I CPU I/F chip select 81 MD05 I/O 18 EWRN/PD5 I CPU I/F write enable 82 MD13 I/O External memory data bus 19 ERDN/PD4 I CPU I/F read enable 83 MD06 I/O 20 EA3/PD3 I 84 MD14 I/O 21 EA2/PD2 I 85 MD07 I/O CPU I/F address bus 22 EA1/PD1 I 86 MD15 I/O 23 EA0/PD0 I 87 WRN/PF5 O External memory write enable 24 IOVDD - IOVDD +3.3V 88 VSS - VSS 25 ED0/PC0 I/O 89 VDD - VDD +2.5V 26 ED1/PC1 I/O 90 IOVDD - IOVDD +3.3V 27 ED2/PC2 I/O 91 MA17 O 28 ED3/PC3 I/O 92 MA16 O CPU I/F data bus 29 ED4/PC4 I/O 93 MA15 O 30 ED5/PC5 I/O 94 MA14 O 31 ED6/PC6 I/O 95 MA13 O 32 ED7/PC7 I/O 96 MA12 O 33 VSS - VSS 97 MA11 O External memory address bus 34 IRQ0N/PH0 I Interrupt input 98 MA10 O 35 TxD0 O Serial output 99 MA09 O 36 RxD0 I serial input 100 MA08 O 37 TxD1/PG2 O Serial output 101 MA07 O 38 RxD1/PH1 I serial input 102 MA06 O 39 SCLK1/PH2 I External synchronization clock 103 MA05 O 40 SD0 O Serial output 104 VSS - VSS 41 SDI/PH3 I serial input 105 MA04 O 42 BCLK O Bit clock output 106 MA03 O External memory address bus 43 WCLK/SY0 O Word clock output 107 MA02 O 44 SYSCLK/PG3 O Clock output 108 MA01 O 45 VSS - VSS 109 CS0N/PG0 O External memory chip select 46 VDD - VDD +2.5V 110 MA18 O 47 IOVDD - IOVDD +3.3V 111 MA19 O 48 PA0 I/O 112 MA21/PF1 O External memory address bus 49 PA1 I/O 113 MA22/PF2 O 50 PA2 I/O 114 MA20 O 51 PA3 I/O 115 MA23/PF3 O External memory address bus I/O port 52 PA4 I/O 116 CS1N/PG1 O External memory chip select 53 PA5 I/O 117 MA00/PF0 O 54 PA6 I/O 118 VSS - VSS 55 PA7 I/O 119 VDD - VDD +2.5V 56 VSS - VSS 120 IOVDD - IOVDD +3.3V 57 PB0 I/O 121 CS2N/PE0 O 58 PB1 I/O 122 CS3N/PE1 O 59 PB2 I/O 123 CS4N/CASN/PE2 O 60 PB3 I/O 124 CS5N/PE3 O External memory chip select I/O port 61 PB4 I/O 125 CS50RDN/PE4 O 62 PB5 I/O 126 CS51WRN/PE5 O 63 PB6 I/O 127 CS52WRN/PE6 O 64 PB7/SYI I/O 128 CS53WRN/RASN/PE7 O 20

DGX-620/YPG-625 S1D13700F01A100 (X5422A00) LCD CONTROLLER DM:IC201 PIN PIN NAME I/O FUNCTION NAME I/O FUNCTION NO. NO. 1 VSS Ground 33 VSS Ground 2 AB12 I 34 XCD1 O Drain output 3 AB11 I 35 XCG1 I Gate input 4 AB10 I Address bus 36 RESET# I Reset 5 AB9 I 37 SCANEN I Test mode set up input 6 AB8 I 38 TESTEN I 7 HIOVDD Power supply 39 CLKI I Externally sourced system clock 8 AB7 I 40 COREVDD Power supply 9 AB6 I 41 RD# I Read strobe Address bus 10 AB5 I 42 WR# I Write strobe 11 AB4 I 43 CS# I Chip select 12 COREVDD Power supply 44 DB7 I/O 13 AB3 I 45 DB6 I/O Data bus 14 AB2 I 46 DB5 I/O Address bus 15 AB1 I 47 DB4 I/O 16 AB0 I 48 HIOVDD Power supply 17 VSS Ground 49 DB3 I/O 18 FPDAT3 O 50 DB2 I/O Data bus 19 FPDAT2 O 51 DB1 I/O Data bus 20 FPDAT1 O 52 DB0 I/O 21 FPDAT0 O 53 VSS Ground 22 NIOVDD Power supply 54 WAIT# O Wait output 23 FPSHIFT O Shift clock 55 HIOVDD Power supply 24 XECL O X driver enable chain clock 56 CNF0 I 25 COREVDD Power supply 57 CNF1 I 26 FPLINE O Latch pulse 58 CNF2 I Input pin for S1D 13700 setting 27 MOD O Frame signal 59 CNF3 I 28 VSS Ground 60 CNF4 I 29 YSCL O Scan shift clock 61 AS# I Address strobe 30 FPFRAME O Scan start pulse 62 AB15 I 31 YDIS O LCD power-down output 63 AB14 I Address bus 32 NIOVDD Power supply 64 AB13 I PD789022GB-A15-8E (XZ560100) CPU DM:IC701 PIN PIN NAME I/O FUNCTION NAME I/O FUNCTION NO. NO. 1 P12 I/O 23 P32/INTP2/CPT2 I/O Port 3/External interrupt input/Capture edge input 2 P11 I/O Port 1 24 P31/INTP1 I/O Port 3/External interrupt input 3 P10 I/O 25 P30/INTP0 I/O 4 P47/KR7 I/O 26 P22/RXD/SI0 I/O Port 2/Asynchronous serial interface serial data input/Serial interface serial data input 5 P46/KR6 I/O 27 P21/TXD/SO0 I/O Port 2/Asynchronous serial interface serial data output/Serial interface serial data output 6 P45/KR5 I/O 28 P20/ASCK//SCK0 I/O Port 2/Asynchronous serial interface serial clock input/Serial interface serial clock 7 P44/KR4 I/O 29 P07 I/O Port 4/Key return signal detection input 8 P43/KR3 I/O 30 P06 I/O 9 P42/KR2 I/O 31 P05 I/O 10 P41/KR1 I/O 32 P04 I/O Port 0 11 P40/KR0 I/O 33 P03 I/O 12 NC 34 P02 I/O 13 IC Internally connected (N.C.) 35 P01 I/O 14 X2 36 P00 I/O Clock 15 X1 I 37 NC 16 VSS0 Ground 38 VDD1 Power supply 17 VDD0 Power supply 39 VSS1 Ground 18 /RESET I System reset 40 P17 I/O 19 P53 I/O 41 P16 I/O Port 5 20 P52 I/O 42 P15 I/O Port 1 21 P51/TO2 I/O Port 5/16-bit timer output 43 P14 I/O 22 P50/TI0/TO0 I/O Port 5/External count clock input to 8-bit timer/8-bit timer output 44 P13 I/O 21

DGX-620/YPG-625 ISP1161A1BD (X5879A00) USB CONTROLLER DM: IC301 PIN NAME I/O FUNCTION PIN NAME I/O FUNCTION NO. NO. 1 DGND - Digital ground 33 NDP_SEL I Indicates to the HC 2 D2 I/O 34 EOT I EOT input 3 D3 I/O 35 DGND - Digital ground 4 D4 I/O 36 D_SUSPEND O DC "suspend" state output DATA bus 5 D5 I/O 37 D_WAKEUP I DC wake-up input 6 D6 I/O 38 /GL O GoodLink LED output 7 D7 I/O 39 D_VBUS I DC USB input 8 DGND - Digital ground 40 H_WAKEUP I HC wake-up input 9 D8 I/O 41 CLKOUT O Programmable clock out 10 D9 I/O 42 H_SUSPEND O HC "suspend" output 11 D10 I/O 43 XTAL1 I Crystal input DATA bus 12 D11 I/O 44 XTAL2 I Crystal output 13 D12 I/O 45 DGND - Digital ground 14 D13 I/O 46 /H_PSW1 O Power switching control 15 DGND - Digital ground 47 /H_PSW2 O Power switching control 16 D14 I/O 48 D_DM AI/O USB D- data line for DC DATA bus 17 D15 I/O 49 D_DP AI/O USB D+ data line for DC 18 DGND - Digital ground 50 H_DM1 AI/O USB D- data line for HC 19 Vhold1 - Voltage holding pin 51 H_DP1 AI/O USB D+ data line for HC 20 NC - No connection 52 H_DM2 AI/O USB D- data line for HC 21 /CS I Chip select 53 H_DP2 AI/O USB D+ data line for HC 22 /RD I Read strobe 54 /H_OC1 I Overcurrent sensing input 23 /WR I Write strobe 55 /H_OC2 I Overcurrent sensing input 24 Vhold2 - Voltage holding pin 56 Vcc - Power supply(3.3V) 25 DREQ1 O HC DMA request 57 AGND - Analog ground 26 DREQ2 O DC DMA request 58 Vreg - 3.3V regulator output 27 /DACK1 I HC DMA acknowledge 59 A0 I Address bus 28 /DACk2 I DC DMA acknowledge 60 A1 I Address bus 29 INT1 O HC interrupt output 61 NC - No connection 30 INT2 O DC interrupt output 62 DGND - Digital ground 31 TEST O test output 63 D0 I/O 32 /RESET I Reset input 64 D1 I/O DATA bus AK4385ET (X6040A00) DAC (Digital to Analog Converter) DM:IC401 PIN PIN NO. NAME I/O FUNCTION NO. NAME I/O FUNCTION 1 MCLK I Master Clock 9 AOUTR- O Rch Analog out(-) 2 BICK I Audio Serial Data Clock 10 AOUTR+ O Rch Analog out(+) 3 SDTI I Audio Serial Date Input 11 AOUTL- O Lch Analog out(-) 4 LRCK I L/R Clock 12 AOUTL+ O Lch Analog out(+) 5 PDN I Power Down mode 13 Vss - Ground 6 CSN I Chip Select 14 VDD - Power Supply 7 CCLK I Control Data Input 15 DZFR O Rch Data Zero Input Detect 8 CDTI I Control Data Input 16 DZFL O Lch Data Zero Input Detect 22

DGX-620/YPG-625 ■ IC BLOCK DIAGRAM SN74LV32APWR (X5647A00) SN74AHCT1G08DCKR (X0158A00) NJM4580E(TE2) (X2331A00) Quad 2 Input OR 74V1T08CTR (X7542A00) Dual Operational Amplifier DM:IC805 Single 2-Input Positive-AND Gate DM: IC402 DM: IC103,104 1A 1 14 Vcc A 1 5 Vcc +DC Voltage Output A 1 +V 8 Supply 1B 2 13 4B B 2 Inverting 2 7 Output B Input A - + 1Y 3 12 4A GND 3 4 Y Non-Inverting Inverting 3 6 Input A + - Input B 2A 4 11 4Y -DC Voltage Supply 4 -V 5 Non-Inverting Input B 2B 5 10 3B FUNCTION TABLE 2Y 6 9 3A INPUTS OUTPUT A B Y 7 GND 8 3Y H H H L X L X L L MC34063EBD-TR (X7371A00) ADC84S021 (X6905A00) DC-DC Converter A/D Converter DM:IC202 DM: IC501 IN1 7 Drive 8 1 Switch IN2 6 12-Bit 2 VA Collector Collector SUCCESSIVE IN3 MUX T/H S Q Q2 5 APPROXIMATION ADC 3 GND Q1 R CS 1 10 SCLK IN4 4 GND Ipk 7 100 Sense 2 Switch VA 2 9 DOUT Emitter GND 3 8 DIN Ipk Oscillator CT IN4 4 7 IN1 10 SCLK IN3 5 6 IN2 CONTROL 1 CS V CC 6 3 Timing LOGIC Comparator 8 DIN Capacitor + 1.25 V 9 DOUT Reference ± Regulator Comparator Inverting 5 4 Gnd Input R5520H001A (X7414A00) LA4625 (XY209A00) USB High Side Switch Power Amplifier DM: IC302 AM: IC201 DC VCC OUT IN 2 14 5 4 OUTPUT PIN TO VCC RIPPLE SHORT PROTECTOR FILTER PREDRIVER POWER 13 -OUT1 IN1 1 + - IN LOAD SHORT POWER 12 PWR-GND1 PROTECTOR GND1 PREDRIVER POWER 11 +OUT1 1 2 3 OUTPUT PIN TO GND EN GND FLG PRE-GND 3 BIAS OVER VOLTAGE/ SHORT PROTECTOR CIRCUIT SURGE VCC Pin No. Pin Name Function STBY 4 STANDBY SW THERMAL OUTPUT PIN TO GND SHUT DOWN SHORT PROTECTOR 1 EN Enableb (Input) 2 GND Ground PREDRIVER POWER 9 -OUT2 3 FLG Fault Flag (Open-drain Output) IN2 6 + LOAD SHORT POWER - IN PROTECTOR GND2 10 PWR-GND2 4 IN Power Supply Input PREDRIVER POWER 8 +OUT2 5 OUT Switch Output (Switch of the high side switch) OUTPUT PIN TO VCC SHORT PROTECTOR POP NOISE PREVENTION CIRCUIT 5 7 ON TIME POP 23

DGX-620/YPG-625 ■ CIRCUIT BOARDS CONTENTS AM Circuit Board (X7135B0) ......................................... 26 DJACK Circuit Board (X7135B0) ................................... 26 DM Circuit Board (X7136C0) ........................................ 25 ENC Circuit Board (X7135B0) ....................................... 29 GHL88H Circuit Board (X6246D0) ................................ 32 GHL88L Circuit Board (X6244D0) ................................. 30 GHL88M Circuit Board (X6245G0) ............................... 31 MKO Circuit Board (X7135B0) ...................................... 29 MVR Circuit Board (X7135B0) ...................................... 29 PB Circuit Board (X7135B0) ......................................... 29 PNL Circuit Board (X7137B0) ....................................... 27 PNR Circuit Board (X7137B0) ....................................... 28 PSW Circuit Board (X7135B0) ...................................... 29 TW Circuit Board (X7135B0) ......................................... 29 Note: See parts list for details of circuit board component parts. 24

DGX-620/YPG-625 ● DM Circuit Board to AM-CN104 to PNR-CN02 to PNL-CN01 to LCD Unit to GHL88M-CN2 to DJACK-CN301 Component Side Pattern Side 2NA-WG25920 1 Note: See parts list for details of circuit board component parts. 25

DGX-620/YPG-625 ● AM Circuit Board to Speaker PHONES to Backlight assembly to DM-CN901 (Woofer) to TW(R) to TW(L) /OUTPUT to MVR-CN601 to PB-CN401 to PSW-CN501 DC IN 12V 0.5 -1.0mm Component Side A nonwoven fabric does not overflow To pile it up in the upper side, it is pasted. from the end of a jack. 0 - 0.5mm JK302 0 - 0.5mm PWB JK201,JK301 JK101 PWB The nonwoven fabricis prevented from PWB overlapping on the PWB side. ● DJACK Circuit Board USB LCD CONTRAST TO DEVICE TO HOST SUSTAIN to DM-CN301 Component Side AM : 2NA-WG25900 Note: See parts list for details of circuit board component parts. DJACK : 2NA-WG25900 26

DGX-620/YPG-625 ● PNL Circuit Board A ACMP INTRO/ M ON/OFF ENDING/rit. AUT STYLE SONG REPEAT & A-B LEARN REPEAT R METRONOME TEMPO/ ON/OFF TAP REC 1 2 LES LYRICS SCORE PIANO ACMP MENU EXECUTE P.A.T. ON/OFF MUSIC DATABASE FUN FILE CONTROL A" A NTRO/ MAIN/ SYNC SYNC DING/rit. AUTO FILL STOP START A-B START/ REPEAT REW FF PAUSE STOP A 1 2 3 4 5 CLEAR LESSON L LESSON R LESSON START to DM-CN601 ABASE FUNCTION Component Side A" Note: See parts list for details of circuit board component parts. 2NA-WG25520 27

DGX-620/YPG-625 B ● PNR Circuit Board BANK SPLIT VOICE EXIT RESIST 1 2 PORTABLE MEMORY GRAND SPLIT ON/OFF CATEGORY CATEG DOWN UP VOICE STYLE EASY SONG ARRANGER SONG to ENC-CN901 to DM-CN602 B" B SPLIT DUAL HARMONY VOICE VOICE TYPE ABLE AND SPLIT DUAL HARMONY ON/OFF ON/OFF ON/OFF Y CATEGORY UP -/NO 0 +/YES 7 8 9 4 5 6 DEMO 1 2 3 Component Side B" Note: See parts list for details of circuit board component parts. 2NA-WG25520 28

DGX-620/YPG-625 ● ENC Circuit Board ● MVR Circuit Board Rotary Encoder MASTER to PNR-CN3 VOLUME Component Side Component Side to AM-CN204 ● PSW Circuit Board ● PB Circuit Board STANDBY/ON to AM-CN103 Component Side to AM-CN101 Component Side ● TW (L) Circuit Board ● TW (R) Circuit Board to Speaker to AM-CN201 (Tweeter R) to Speaker to AM-CN202 (Tweeter L) Component Side Component Side ● MKO Circuit Board NOTE: MKO circuit board is used as a connector assembly holder. Component Side ENC :2NA-WG25900 PSW :2NA-WG25900 TW :2NA-WG25900 MVR :2NA-WG25900 PB :2NA-WG25900 MKO :2NA-WG25900 Note: See parts list for details of circuit board component parts. 29

DGX-620/YPG-625 ● GHL88L Circuit Board D" D D" D to GHL88M-CN1 Component Side Note: See parts list for details of circuit board component parts. 2NAK8-WF46230 30

DGX-620/YPG-625 ● GHL88M Circuit Board E" E to DM-CN701 to GHL88L-CN1 to GHL88H-CN1 E" E Component Side 2NAK8-WF46240 2 Note: See parts list for details of circuit board component parts. 31

DGX-620/YPG-625 ● GHL88H Circuit Board F" F to GHL88M-CN3 F" F Component Side Note: See parts list for details of circuit board component parts. 2NAK8-WF46250 32

DGX-620/YPG-625 ■ TEST PROGRAM * If you execute the test No.47 (Factory Set), then the user’s preset data may be lost. Therefore, back up the user’s data in advance. A. PREPARATION 1) PA-5D or PA-51 (AC adaptor) is used. 2) Measuring instruments: frequency counter, level meter (with JIS-C filter) Note: Connect a stereo plug to the [PHONES/OUTPUT] jack at 33 ohms. 3) Jigs: Foot switch (FC-4 or FC-5), USB cable, USB memory, USB-MIDI driver (*1) PC (Install a USB-MIDI driver (*1) in PC and finish the THROUGH setup.) *1 Obtain the USB-MIDI driver from CD-ROM (X7225A00) for DGX-620/YPG-625 or Yamaha official website. (URL>>http://www.yamahapkclub.com) B. HOW TO ENTER THE TEST PROGRAM While pressing the C2#, F2 and G2# keys, turn the [STANDBY/ON] switch on. DGX-620/YPG-625 C2# G2# STANDBY ON F2 C. TEST PROCEDURE 1) When the test program is started, “TEST” will be displayed on the LCD. 2) Press the [-] or [+] button of the number buttons to select a test program item. 3) Press the [START/STOP] button to execute the test. * If the test result is OK, or the test item is completed, press the [START/STOP] button again to return to the test item selection display. * Press the [-] or [+] button of the number buttons to select the next test program item. * When the test result is OK, an asterisk (*) is added in front of its item name on display. If the test result is NG, press the [DEMO] button or the lowest (leftmost) white key to returm the item selection display. D. TEST PROGRAM LIST (dBu=dBm) TEST No. LCD Display Test Descriptions, Judgment Criteria -- -- Contrast Check Set the contrast knob to the legible position of LCD. When the contrast knob is turned clockwise (or counterclockwise), the LCD becomes blue (or white). 1 001 Version Displays ROM (Program) version. (In case of OK:“XXX” Prog, NG:“Err” Prog) 33

DGX-620/YPG-625 TEST No. LCD Display Test Descriptions, Judgment Criteria 2 002 Rom Chk1 Checks the ROM that is connected to the CPU. (OK:“Rom OK”, NG:“Rom NG”) The test results appear on the LCD. Check that the LCD displays “Rom OK”. 3 003 Ram Chk1 Checks the RAM that is connected to the CPU. (OK:“Ram OK”, NG:“Ram NG”) The test results appear on the LCD. Check that the LCD displays “Ram OK”. 6 006 Flash Rom Chk1 Checks the flash ROM that is connected to CPU bus. The check result appears on the LCD. Check that the LCD displays “Flash Rom OK”. (OK:“Flash Rom OK”, NG:“Flash Rom NG”) 7 007 USB Storage Chk Checks USB. (OK:“USB Storage OK”, NG:“USB Storage NG”) Connect a USB memory to the [USB TO DEVICE] jack with a USB cable, and execute the test. The test results appear on the LCD. Check that the LCD displays “USB Storage OK”. 11 011 TG1 Chk Outputs the sine wave by changing the channels in sequence from C2 to G4. [32 notes] Check the sound by hearing that there is no noise or abnormal sound. After auto-scaling is finished, individual keys can be played. (If playing two or more keys simultaneously, the first pressed key has priority to make a sound.) 13 013 Pit Chk Connect the frequency counter to the [PHONES/OUTPUT] jack. (L or R) Sets PAN to Center and produces a signal at 440.14 Hz +/-0.22 Hz. Check that the correct signal is produced. -- -- Volume Decrescence Check Connect the level meter (with a JIS-C filter) to the [PHONES/OUTPUT] jack. (33 ohm load) Set the [MASTER VOLUME] at minimum and check the output level. PHONES L : less than -70.0 dBu PHONES R : -70.0 dBu (dBu=dBm) 14 014 Output R Connect the level meter (with a JIS-C filter) to the [PHONES/OUTPUT] jack. (33 ohm load) Set the [MASTER VOLUME] at maximum and check the output level (1 kHz sine wave, PAN=R). PHONES L : less than -45.0 dBu PHONES R : -1.0 dBu +/-2 dB 15 015 Output L Connect the level meter (with a JIS-C filter) to the [PHONES/OUTPUT] jack. (33 ohm load) Set the [MASTER VOLUME] at maximum and check the output level (1 kHz sine wave, PAN=L). PHONES L : -1.0 dBu +/- 2 dB PHONES R : less than -45.0 dBu 20 020 SW Chk Checks the switches on the panel. Press the switches on the LCD as instructed. A pre-assigned note is output when the switch is pressed. A rotary encoder is clockwise set up to UP and is counterclockwise set to DOWN. (See P.36 “Table 1”.) The check result appears on the LCD when all the switches are pressed as instructed. Check that “SW OK” is displayed. Also, check that no key stick is existed. (OK:“SW OK”, NG:“SW NG”, When multiple switchs are pressed at the same time:“Over Two”) 21 021 All LED Chk Check that all the LEDs on the panel are on. 22 022 Red LED Chk Check that all the red LEDs on the panel are on. 23 023 Green LED Chk Check that all the green LEDs on the panel are on. 28 028 LCD On Check that all LCD dots are on. (The whole screen becomes white.) 29 029 LCD Off Check that all LCD dots are off. (The whole screen becomes blue.) 34

DGX-620/YPG-625 TEST No. LCD Display Test Descriptions, Judgment Criteria 31 031 Pedal1 Chk Connect the foot switch (FC-4 or FC-5) to the [SUSTAIN] jack. Check that the C3 note is output when the [START/STOP] button is pressed while stepping the pedal and the C4 note is output when releasing the pedal. The sound stops when stepping the pedal again. Check that the LCD displays “Pedal1 OK”. (OK:“Pedal1 OK”, NG:“Pedal1 NG”) 33 033 Pitch Bend Chk Checks the pitch bend wheel. (First, it checks if the center position of the wheel is correct or not.) Check that the C3 note is output when rotating the [PITCH BEND] wheel to minimum and the C4 note is output when rotating it to maximum. (OK:“Pitch Bend OK”, NG:“Pitch Bend NG”, If the center position of the wheel is not correct:“Pitch Bend C NG”) 37 037 MIDI Chk Checks MIDI and USB. Connect the PC with a USB-MIDI driver installed and the [USB TO HOST] terminal using a USB cable, and execute the test. (As for the PC, install a USB-MIDI driver in the PC and finish the THROUGH setup, in advance.) Check that the C4 note is output and the LCD displays “MIDI OK”. (OK:“MIDI OK”, NG:“MIDI NG”) 41 041 Rom Chk2 Checks the ROM that is connected to the CPU. The test result appears on the LCD. Check that the LCD displays “Rom OK”. It takes about 20 seconds. (OK:“Rom OK”, NG:“Rom NG”) 42 042 Ram Chk2 Check the RAM that is connected to the CPU. The test results appear on the LCD. Check that the LCD displays “Ram OK”. It takes about 5 seconds. (OK:“Ram OK”, NG:“Ram NG”) 45 045 Flash Rom Chk2 Checks the flash ROM that is connected to CPU bus. The check result appears on the LCD. Check that the LCD displays “Flash Ram OK”. It takes about 60 seconds. (OK:“Flash Rom OK”, NG:“Flash Rom NG”) 47 047 Factory set All backup domains are initialized and it changes into a factory-shipments state when executing this test. 48 048 Test Exit Exit from the test program after executing this test. -- -- Noise Check (in the normal mode) Connect the level meter (with a JIS-C filter) to the [PHONES/OUTPUT] jack. (33 ohm load) Set the [MASTER VOLUME] at maximum and check that the noise level is within the range below. PHONES L/R : less than -74.0 dBu * Note: As for the test no.41 - 45, it takes time. If you want to skip them, press the [+/YES] button several times to go to the test no.47 (Factory Set). 35

DGX-620/YPG-625 Table 1 No. SW Name Display Note No. 1 DIAL UP Dial Up C2 2 DIAL DOWN Dial Down C#2 3 FILE MENU File Menu D2 4 FILE EXCUTE File Excute D#2 5 P.A.T. P. A.T. E2 6 Music Data Base MusicDataBase F2 7 FUNCTION Function F#2 8 LYRICS Lyrics G2 9 SCORE Score G#2 10 Chord Finger Chord Finger A2 11 LESSON L Lesson L A#2 12 LESSON R Lesson R B2 13 LESSON START Lesson Start C3 14 METRONOME Metronome C#3 15 TEMPO/TAP Tempo/TAP D3 16 SONG REC SONG REC D#3 17 SONG 1 SONG 1 E3 18 SONG 2 SONG 2 F3 19 SONG 3 SONG 3 F#3 20 SONG 4 SONG 4 G3 21 SONG 5 SONG 5 G#3 22 SONG A SONG A A3 23 ACMP ACMP A#3 24 INTRO/ENDING Intro/Ending B3 25 MAIN/AUTO FILL Main/Fill C4 26 SYNC STOP Sync Stop C#4 27 SYNC START Sync Start D4 28 START/STOP Start/Stop D#4 29 SONG SONG E4 30 EASY SONG ARRANGER EasySongArrange F4 31 STYLE Style F#4 32 VOICE Voice G4 33 CATEGORY - Category - G#4 34 CATEGORY + Category + A4 35 TENKEY 1 Tenkey 1 A#4 36 TENKEY 2 Tenkey 2 B4 37 TENKEY 3 Tenkey 3 C5 38 TENKEY 4 Tenkey 4 C#5 39 TENKEY 5 Tenkey 5 D5 40 TENKEY 6 Tenkey 6 D#5 41 TENKEY 7 Tenkey 7 E5 42 TENKEY 8 Tenkey 8 F5 43 TENKEY 9 Tenkey 9 F#5 44 TENKEY - Tenkey - G5 45 TENKEY 0 Tenkey 0 G#5 46 TENKEY + Tenkey + A5 47 EXIT Exit A#5 48 BANK/MEMORY Memory B5 49 REGIST 1 Regist 1 C6 50 REGIST 2 Regist 2 C#6 51 PORTABLE GRAND Portable Grand D6 52 SPLIT Split D#6 53 DUAL Dual E6 54 HARMONY Harmony F6 55 DEMO Demo F#6 36

DGX-620/YPG-625 ■ INITIALIZATION This function erases all backup data in the instrument"s flash memory and restores the initial default settings. The following initialization procedures are provided. Backup Clear To clear data backed up to the internal flash memory-panel user setting, registration memory, user songs, style file-turn the power on by pressing the [STANDBY/ON] switch while holding the highest white key on the keyboard. The backed up data will be erased and the default values restored. Flash Clear To clear song data and style files that have been transferred to the internal flash memory from a computer, turn the power on by pressing the [STANDBY/ON] switch while simultaneously holding the highest white key on the keyboard and the three highest black keys. When you execute the Flash Clear operation, song data you have purchased will also be cleared. Be sure to save data you want to keep to a computer. 37

DGX-620/YPG-625 ■ USER DATA BACKUP To backup user data to an