Yamaha DGX-650B DGX-650WH Service Manual

SERVICE MANUAL HAMAMATSU, JAPAN Copyright (c) Yamaha Corporation. All rights reserved. ’13.06 CL 001889 CONTENTS SPECIFICATIONS ..................................................................... 3 PANEL LAYOUT ....................................................................... 4 CIRCUIT BOARD LAYOUT& WIRING ...................................... 6 BLOCK DIAGRAM.................................................................... 8 DISASSEMBLY PROCEDURE ................................................ 9 LSI PIN DESCRIPTION .......................................................... 20 CIRCUIT BOARDS .................................................................. 24 DM Circuit Board Test Method................................................. 33 TEST PROGRAM .................................................................... 34 BACKUP .................................................................................. 39 INITIALIZATION ...................................................................... 39 SYSTEM BOOTING FLOW CHART ....................................... 40 PARTS LIST (DGX-650B/DGX-650WH) PARTS LIST (LP-7A/LP-7AWH) OVERALL CIRCUIT DIAGRAM As for an optional LP-7A/LP-7AWH pedal unit, refer to the LP-7A/LP-5A service manual (CL 001812 ). DGX-650WH DGX-650B

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8 DGX-650B/DGX-650WH ■ BLOCK DIAGRAM N[11-16] N[21-26] B[01-15] Keyboard(GHS) 88KEY GHL88L GHL88M GHL88H (C#5~C7) (A-1~C2) (C#2~C5) CN2(27P) CN1(17P) CN1(17P) CN3(17P) CN1(17P) Power SW VR603 MVR MASTER VOLUME SW64 CN903(2P) PWR PB CN401(3P) PITCH BEND VR401 CN701(6P) Pedal Unit (Option) JK701 USB USB TO DEVICE JK303 CN411(5P) CN901(3P) EC1 DATA ENTRY PNR ENC LED SW Matrix (SW33-37,41-47,49-55,57-63) (LD4) CN3(3P) CN2(15P) PNL LED SW Matrix (SW1-7,9-15,17-23,25-31) (LD1-3) CN1(12P) JK305 AC adaptor PA-150/PA-150A/PA-5D DC-IN 12V DJACK PEDAL TO HOST SUSTAIN CONTRAST JK302 JK301 VR301 CN409(5P) USB IC4 FT1 TR302 JK201 JK306 PHONES/OUTPUT AUX IN CN101(2P) CN408(4P) CN407(4P) CN103(3P) CN422(2P) HP-L, HP-R HPIN AUXIN-IN WOOFER 4 12cm TWEETER L R L R 6 5cm CN902(4P) CN403(4P) AJACK SUSTAIN VCON-IN VCON FUNC-DP, FUNC-DM, VBUS D+,D-,VBUS CN415(4P) CN402(18P) AUXIN-IN ENC_A, ENC_B CN418(5P) CN420(3P) CN419(2P) CN423(2P) DM +3.3D +1.2D +3.3D +5A +B +5D +3.3D +5A +5A +3.3A SWX08 IC023 INT_CLK: 135MHz Bus_CLK: 67.7MHz (376P) 16.9344 MHz X003 X002 48MHz X001 5MHz 128M SDRAM x2 IC026,027 (54P) 64M FLASH ROM PROGRAM IC007 (56P) 64M SDRAM DSP IC031 (54P) POWER AMP IC035 20W x 2 YDA164C (33P) HP AMP IC021 (11P) IC015 (16P) DAC IC016 (20P) ADC IC032(16P) CPU ERROR DETECTION IC033 (14P) IC008 (8P) DC/DC IC019(5P) REGULATOR +1.2V IC017(5P) A7 AB5 A20,B19,A19,D18, C18,B18,D17,C17 U3,U4,V1,V2, V3,V4,W1 A13 AA5 D7 A14 /CPU-RES /MUTE-RES /FLASH-RES +3.3D RESET IC024 (5P) +3.3D MKS5 IC012 (44P) LED Driver TR001-004 PA[0-7] SW-IN[0-6] MKS_CLK MKS_RX MKS_ACK MKS_IC B[0-15] N[11-16, 21-26] 28 27 22 1,31-33, 34-36, 40-44 2-11,19, 20,23, 24,26 18 14 15 17,25,38 PA[0-3] PA[4-7] 32 16 16 16 8 256M FLASH ROM WAVE IC028 (56P) 14 14 /FLASH-RES FPFRAME, FPLINE, FPSHIFT, MOD FPDAT[0-3] LCD DRIVER IC006 (64P) 39 SYSCLK2 /DETECT /SPOFF-INV /MUTE SYSCLK2 /WAIT /CS4, /LCD_IC AB19 /MUTE-CHK W6 C19 A16,AB3 AA6,AB6 Y4 C13 54 36,43 SYSCLK SUS FUNC-DP,FUNC-DM,VBUS HOST-DP,HOST-DM VBUS POWER-ENB,/OVER-CURRENT SDI0 BCLK WCLK SDO1 SDO0 10 15 11 10 12 9 8 7 Y19 AA19 AB18 AA18 AB17 W17 Y16 T3 T2 5 7 3 1 Y6 B9,A9,C9 B11,A11 D11,C11 AA4,AB4, W5,Y5 5,3 7,1 1,2 LPF Filter 1 16 4,5 9 6 7 /MUTE /MUTE 8 6 HP-L, HP-R /SPOFF 6 8 7 5 19 21 11,15,27,31 30 28 12 14 AUXIN-L, AUXIN-R IC002 (5P) USB HIGH-SIDE POWER SW 3, 4 5 DAMP_Make1, DAMP_Make2, SOSTE,SOFT /SPOFF-INV /MUTE-INV ERR-DETECT IC034(8P) CN007(6P) CN001(27P) CN10(10P) DAMP_Make1, DAMP_Make2, SOSTE,SOFT CN006(15P) CN002(14P) CN005(12P) CN012(4P) CN013(2P) IC020 (9P) DC/DC REGULATOR +3.3V +5A +3.3A +5D +3.3D +1.2D +B CN008(18P) AUXIN-R AUXIN-L AUXIN-IN HP-IN HP-L, HP-R PITCH_BEND MASTER-VOL /PSWI PSWO +VEE1 +VEE2 HP-IN AUXIN-IN B3 MASTER-VOL A4 A6 B6 C6 C12 PITCH_BEND Y7 /PSWI T4 PSWO +L - L +R - R +5D +VEE1 6 5 13 1 /MUTE-INV /MUTE-RES ERR-DETECT /MUTE-CHK /SPOFF +VEE2 /LCD-OFF LED Back Light LCD 320x240 STN 28CA1-2001116092 ENC_A, ENC_B IC001(8P) +5A +5A /MUTE-RES IC013 (8P) IC009(14P) /LCD-OFF /ADC-IC /ACD-IC 7 TH1 POLY-SWTCH CN410(5P) CN009(5P)

9 DGX-650B/DGX-650WH ■ DISASSEMBLY PROCEDURE 1. Bottom Board Assembly (Time required: About 8 minutes) 1-1 Remove the ﬁve (5) screws marked [940A]. The lower case F can then be removed. (Fig.1) 1-2 Remove the four (4) screws marked [940B] and the guide screw marked [950A]. The lower case L can then be removed. (Fig.1) 1-3 Remove the four (4) screws marked [940C] and the guide screw marked [950B]. The lower case R can then be removed. (Fig.1) 1-4 Remove the thirty (30) screws marked [940D]. The bottom board assembly can then be separated from the upper case assembly. (Fig.1) CAUTION: 1) Flat cable’s contacts are visible from the back. Pay attention not to insert and install the cable to the connector inversely. 2) Be surto attach the removed ﬁlament tape just as it was before removal. >$@  %RWWRP YLHZ !   7KH RUGHU RI WKH VFUHZ WLJKWHQLQJ Lower Case F Lower Case L Lower Case R >$@ %RWWRP %RDUG $VVHPEO\ 8SSHU &DVH $VVHPEO\ >'@ [ >%@ >%@ >&@         )URQW 6LGH 3ULQWHG 6LGH %DFN VLGH * When the lower case L is assembled, tighten the screws marked [940B] in the order of 1, 2, 3 and 4. (Fig.1) * When the lower case R is assembled, tighten the screws marked [940C] in the order of 1, 2, 3 and 4. (Fig.1) Fig.1

10 DGX-650B/DGX-650WH Fig.2 2. Circuit Boards and Assemblies (Upper Case Part) (Time required: About 9 minutes) 2-1 Separate the upper case assembly from the bottom board assembly. (See procedure 1.) 2-2 After removing the upper case assembly, remove the following screws. Each circuit board and assembly can then be removed. (Fig.2)(Table 1) > Dqvvqo xkgy @ > Dqvvqo xkgy @ > Tgct xkgy @ 3/4 < Vjg qtfgt qh vjg uetgy vkijvgpkpi Wrrgt Ecug Cuugodn{ ]82C_ ]82C_ ];22N_ ];22M_ ];22K_ ];22E_ ];22F_ ];22C_ ];22C_ ];22D_ ];22D_ ];32C_ ];22L_ ]82D_ Mg{ Dnqem T Mg{ Dnqem N Urgcmgt *Vyggvgt+ *N+ ];22O_ Urgcmgt *Vyggvgt+ *T+ Yjggn Cuugodn{ RD RYT OXT RPT FO CLCEM RGFCN OMQ FLCEM WUD GPE ];22G_ Dtcemgv ];22I_ ];22H_ ];22H_ ];22J_ 3 3 4 4 3 3 3 4 4 4 C C C D 3 4 3 4 3 4

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Yamaha DGX-650B DGX-650WH Service Manual

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