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SERVICE MANUAL
CONTENTS
SPECIFICATIONS ................................................... 3
PANEL LAYOUT .................................... 4
CIRCUIT BOARD LAYOUT ................. 5
BLOCK DIAGRAM ............................ 6
WIRING ..................................................................... 7
DISASSEMBLY PROCEDURE .............................. 8
LSI PIN DESCRIPTION .............................. 10
IC BLOCK DIAGRAM ................................. 14
CIRCUIT BOARDS ...........
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CS6X IMPOR TANT 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 under- stood 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 fa
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CS6X SPECIFICATIONS CS6x KEYBOARD Number of Keys 61 Touch Initial touch, Aftertouch TONE GENERATION SYSTEM Tone Generators AWM2, Phrase Clip, Modular Synthesis Plug-in System Polyphony 64 VOICE Number of Voice Normal voices (256 Presets, 128 Internals [Users], 128 Externals [Memory Cards]), Drum voices (8 presets, 2 Internals [Users], 2 Externals [Memory Cards]), Plug-in voices (64 x 2 Plug-in Boards [If installed]) Wave ROM 16 MByte PERFORMANCE Multi-Timbres 20 (16 Voice Parts, Phrase Clip Par
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CS6X PANEL LAYOUT 1 [VOLUME] knob 2 OCTAVE [UP] and [DOWN] keys Front panel 3 PITCH bend wheel 4 MODULATION wheel 5 Ribbon control 1 6 7 9 10 8 12 15 13 14 16 19 6 Sound Control knobs 7 MODE keys MIC/LINE 2 LINE 1 L/MONO R 1 2 IN OUT THRU FOOT FOOT FOOT GAIN 3.3V A/D INPUT PHONES OUTPUT INDIVIDUAL OUTPUT VOLUME CONTROLLER SUSTAIN SWITCH BREATH TO HOST HOST SELECT MIDI CARD POWER 8 LCD (Liquid Crystal Display) 9 [SHIFT] key 10 [PAGE] knob VOLUME FILTER EFFECT MODE MEMORY PORTAMENTO PHRASE CLIP
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CS6X CIRCUIT BOARD LAYOUT RIB PNB PNA DM RV PS LCD JK SM 5
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CS6X BLOCK DIAGRAM 28CA1-8813234 6
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CS6X WIRING 7
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CS6X DISASSEMBLY PROCEDURE 1. Bottom Assembly SM, RV, Display Ass'y Remove the thirty-five (35) screws marked [104], the Circuit Board & Unit Ref No. PARTS NAME PARTS No. Q'ty Fig. two (2) corner plates, marked [102], and the two (2) PLG Support Brecket 112 Bind Head Tapping Screw-B 3.0 X 6 MFZN2BL EP600230 5 2 coin screws marked [106]. The botton assembly can SM 62 Bind Head Tapping Screw-B 3.0 X 8 MFZN2BL EP600190 2 2 then be removed. JK 322 Bonding Tapping Screw-B 3.0 X 10 MFZN2BL VQ049800
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CS6X DM [122] [122] Fig.3 [32] [52] [42] RV PNB PNA LCD Assy SM [22] Fig.4 3. Keyboard Assembly 3-1 Remove the bottom assembly. (See Procedure 1.) 3-2 Remove the four(4) screws marked [72]. The keyboard Assembly can then be removed.(Fig.2) 9
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CS6X LSI PIN DESCRIPTION HD64F7045F28 (XW419A00) CPU PIN PIN NAME I/O FUNCTION NAME I/O FUNCTION NO. NO. ⎫ 1 /WRHH O HH write 73 D15 I/O ⎪ ⎬ 2 PE14 I/O LCD data 6 input / output 74 D14 I/O Data bus ⎪ 3 /WRHL O 75 D13 I/O ⎪ ⎪ 4 PA21 I MLAN insert detect 76 D12 I/O ⎭ 5 PE15 I/O LCD data 7 input / output 77 VCC77 - Power supply 6 VSS6 - Ground 78 D11 I/O Data bus ⎫ 7 A0 O 79 VSS79 - Ground ⎪ ⎪ ⎫ 8 A1 O 80 D10 I/O ⎪ ⎪ ⎬ ⎪ 9 A2 O Address bus 81 D9 I/O ⎪ ⎪ 10 A3 O ⎪ 82 D8 I/O ⎬ Data bus ⎪ ⎪ 11 A4 O 8
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CS6X HD63B01Y0RCE0F (XM234A00) CPU (PKS) PIN PIN NAME I/O FUNCTION NAME I/O FUNCTION NO. NO. ⎪ 1 /NMI I Non-maskable interrupt 33 M1/S8 I Make contact of key receive/ ⎪ ⎪ ⎫ 2 E O 34 M0/S7 I Switch receive ⎭ ⎪ ⎪ 3 D# O 35 Vss Ground ⎪ ⎬ ⎫ 4 D O Key scan drive 36 F O ⎪ ⎪ ⎪ ⎪ 5C# O 37 F# O ⎪ ⎪ ⎭ ⎪ 6CL O 38 G O ⎪ ⎬ 7 PULL 1 39 G# O Key scan drive ⎪ ⎪ 8 PULL 2 40 A O ⎪ ⎪ 9 LC.AE//FS I connected to ground 41 A# O ⎪ ⎪ 10 /REPEAT I Auto repeat (L:on, H:off) 42 B O ⎪ ⎭ 11 /KOF-REQ I Key off request
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CS6X TC203C760HF-002 (XS725A00) SWP30B AWM Tone Generator coped with MEG) Standard Wave Processor PIN PIN NAME I/O FUNCTION NAME I/O FUNCTION NO. NO. 1 Vss (Ground) 121 VSS (Ground) 2 CA0 I 122 HMD0 I/O 3 CA1 I 123 HMD1 I/O 4 CA2 I 124 HMD2 I/O 5 CA3 I 125 HMD3 I/O 6 CA4 I 126 HMD4 I/O 7 CA5 I Address bus of internal register 127 HMD5 I/O 8 CA6 I 128 HMD6 I/O Wave memory data bus (Upper 16 bits) 9 CA7 I 129 HMD7 I/O 10 CA8 I 130 HMD8 I/O 11 CA9 I 131 HMD9 I/O 12 CA10 I 132 HMD10 I/O 13 CA11 I 1
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CS6X MN101C027YB (XS711200) CPU PIN PIN NAME I/O FUNCTION NAME I/O FUNCTION NO. NO. 1 S1 I 33 S12 I 2 S2 I 34 S13 I Switch matrix data 3 S3 I Switch matrix data 35 S14 I 4 S4 I 36 TXD O MIDI transmit data 5 S5 I 37 S15 I 6 VREF+ - Power supply (+5V, analog) 38 S16 I Switch matrix data 7 VDD - Power supply (+5V) 39 S17 I 8 OSC2 O Crystal oscillator (8MHz) 40 S18 I 9 OSC1 I Crystal oscillator (8MHz) 41 L16 O 10 VSS - Ground 42 L17 O 11 XI I Not used 43 L18 O 12 XO O Not used 44 L19 O 13 MMOD I M
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CS6X PCM1800 (XU770A00) A/D Converter PIN PIN NAME I/O FUNCTION NAME I/O FUNCTION NO. NO. 1 VINL I Analog input (L ch.) 13 LRCK I/O Sampling clock input/output 2 VREF1 - Reference 1 decoupling cap. 14 BCK I/O Bit clock input/output 3 REFCOM - Reference decoupling common 15 DOUT O Audio data output 4 VREF2 - Reference 2 decoupling cap. 16 SYSCK I System clock input 5 VINR I Analog input (R ch.) 17 DGND - Digital ground 6 RSTB I Reset input active “L” 18 VDD - Power supply +5V 7 BYPAS I LCF bypas
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CS6X TC74VHC245F(XT487A00) TC74VHC273F(XN971A00)IC52 TC7S66FF(XR682A00) TC74HC74AF (XP003A00) TC7W32FU(TE12L) (XQ173A00) TC74HC4052AF (XS790A00) IC11,IC101 SN74HC273NSR(XH223A00) IC30 IC18,IC19 IC75 IC13,IC14,IC15,IC16 Transceiver IC27, IC28,IC52 Analog Switch Dual D-Type Flip-Flop OR Multiplexer D-FF 1CLR 1 14 VCC 1 VCC 16 1A 1 OY VDD D1R 1 VCC 8 20 IN / OUT 1 4 Vcc 1D 2 13 2CLR D 2 15 CLEAR 1 VCC 2Y 2Y 2X 2X A1 2 19 G 20 1B 2 7 1Y OUT / IN 2 1CK 3 D 12 2D CK 3 14 1Q 2 19 8Q Y-COM Y-COM 1X 1X A
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CS6X CIRCUIT BOARDS DM Circuit Board CN19: to PNA-CN1 CN22: to SM-CN1 CN20: to JK-CN2 CN18: OPTION-MLAN-CN1 CN21: to JK-CN4 CN6: to RV-CN10 CN7: to PNA-CN3 CN15: to PLUG IN1-CN1 CN4: to JK-CN5 CN16: to PLUG IN2-CN1 CN13: CN12: CN14: CN17: CN3: CN2: CN11: CN10: CN9: CN5: CN8: to LCD-2P to LCD-CN1 to RV-CN11 to PNA-CN4 to LC-CN2 to LC-CN3 to PS-CN3 to KS-CN1 to RIB-CN14 to WHEEL-5P to JK-CN7 Component side Note : See parts list for details of circuit board component parts. DM: 2NA-V357640 1 16
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CS6X Pattern side Battery VN103500 VN103600(Battery holder for VN103500) • Notice for back-up battery removal Push the battery as shows in figure, then the battery will pop up. • Druk de batterij naar beneden zoals aangeven in de tekening, de batterij springt dan naar voren. 17
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CS6X RIB Circuit Board RV Circuit Board CN15: from RIBBON CN9: to PNA-CN8 CN10: to DM-CN6 CN11: to DM-CN14 CN14: to DM-CN9 CN14: to DM-CN9 Component side Component side PNA Circuit Board CN1: CN2: CN7: CN8: to DM-CN19 to JK-CN1 CN3: to DM-CN7 CN5: to PNB-CN12 CN6: to PNB-CN13 CN4: to DM-CN17 to JK-CN6 to RV-CN9 RIB, RV, PNA: 2NA-V357940 1 Component side 18
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CS6X PNB Circuit Board CN12: to PNA-CN5 CN13: to PNA-CN6 Component side SM Circuit Board CN1: to DM-CN22 PNB: 2NA-V357980 1 SM: 2NA-V357710 1 Component side Pattern side 19
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CS6X JK Circuit Board ( B virsion) HOST SELECT INDIVIDUAL OUTPUT OUTPUT MIDI FOOT SUSTAIN FOOT FOOT A/D INPUT PC2 PC1 to HOST BREATH GAIN SWITCH CONTROLLER VOLUME 2 1 R L/MONO PHONES MIC/LINE2 LINE1 THRU OUT IN MIDI Mac CN4: to DM-CN21 CN5: to DM-CN4 CN6: to PNA-CN7 CN7: to DM-CN8 CN2: to DM-CN20 CN1: to PNA-CN2 CN3: to PS-CN2 Component side JK Circuit Board ( C virsion) HOST SELECT INDIVIDUAL OUTPUT OUTPUT FOOT SUSTAIN FOOT FOOT MIDI A/D INPUT PC2 PC1 to HOST BREATH GAIN SWITCH CONTROLL
