Yamaha MD4S Service Manual Download

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SERVICE MANUAL

MULTITRACK MD RECORDER

011433

HAMAMATSU, JAPAN

1.93K-288

Printed in Japan '99.01

CONTENTS

19981210-79800

www. xiaoyu163. com

QQ 376315150

TEL 13942296513

TEL 13942296513 QQ 376315150 892498299

http://www.xiaoyu163.com

Summary of Contents for MD4S

Page 1: ...OCEDURE 11 LSI PIN DESCRIPTION 13 IC BLOCK DIAGRAM 15 CIRCUIT BOARDS 18 ERROR MESSAGES 23 INSPECTION SPECIFICATION 24 MIDI IMPLEMENTATION CHART 30 PARTS LIST OVERALL CIRCUIT DIAGRAM 19981210 79800 www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 co...

Page 2: ...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 certification recognition of any applicable technical capabilities or establish a principal agent relationship of any form The data provided is belived to ...

Page 3: ...S OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE THIS PRODUCT SHOULD NOT BE ADJUSTED OR REPAIRED BY ANYONE EXCEPT PROPERLY QUALIFIED SERVICE PERSONNEL PROTECTION OF EYES FROM LASER BEAM DURING SERVICING This set employs a laser Therefore be sure to carefully follow the instructions below when servicing 1 Laser Diode Properties Materlal GaA...

Page 4: ...TIRRA EJ IN I STRÅLEN OCH BETRAKTA EJ STRÅLEN MED OPTISKA INSTRUMENT VARO NÄKYMÄTÖNTÄ AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALTTIINA LASERSÄTEILYLLE ÄLÄ TUIJOTA SÄTEESEEN ÄLÄKÄ KATSO SITÄ OPTISEN LAITTEEN LÄPI ADVARSEL USYNLIG LASERSTRÅLING NÅR DEKSEL ÅPNES OG SIKKERHEDSLÅS BRYTES STIRR IKKE INN I STRÅLEN ELLER SE DIREKTE MED OPTISKE INSTRUMENTER ADVARSEL USYNLIG LASERSTRÅLING VED ÅBNING NÅ...

Page 5: ...D4S MiniDiscs containing songs that were digitally copied from a commercial CD however cannot be edited due to the SCMS Serial Copy Management System protection system Songs that were recorded in 8 track mode on a recorder such as the MD8 cannot be played back on the MD4S MD DATA MiniDisc Type Logo MD DATA discs are for computer data storage applications You can purchase them at computer stores Th...

Page 6: ...Outputs Frequency response EQ MASTER Channel Features MIC LINE IN CH1 2 Balanced phone jack x2 10 to 50 dB MIC LINE IN CH1 2 Balanced XLR x2 10 to 50 dB MIC LINE INPUT CH3 4 Unbalanced phone jack x2 10 to 50 dB LINE INPUT CH5 8 Unbalanced phone jack x4 10 dB INSERT IN OUT CH 1 2 TRS phone jack x2 10 dB 2 TR IN L R Phono x2 10 dB TRACK DIRECT OUT 1 4 Phono x4 10 dB STEREO OUT L R Phono x2 10 dB MON...

Page 7: ... 9 8 7 6 5 4 3 2 1 0 P A N L E V E L 3 3 GAIN CUE HIGH LINE FLIP MIC LINE MIC L R 0 10 15 15 MID 15 15 LOW 15 15 PAN L R AUX 1 2 PB 10 9 8 7 6 5 4 3 2 1 0 P A N L E V E L 4 4 GAIN CUE HIGH LINE FLIP MIC LINE MIC L R 0 10 15 15 MID 15 15 LOW 15 15 PAN L R AUX 1 2 PB 10 9 8 7 6 5 4 3 2 1 0 P A N L E V E L 5 6 7 8 0 10 0 10 STEREO MONITOR LEVEL CUE STEREO 2TR IN CUE MIX TO STEREO MONITOR SELECT 10 9 ...

Page 8: ... STOP TOC WRITE buttons AUTO PUNCH I O button SONG SEARCH buttons A B repeat button LAST REC SEARCH IN OUT SET buttons REPEAT button MARK SEARCH MARK buttons Disc compartment BUS button REC SELECT buttons EJECT button PEAK HOLD button DISPLAY button Function PITCH ADJUST EDIT UTILITY buttons EXIT button ENTER button DATA dial DATA CURSOR shuttle PHONES jack PUNCH I O jack Control Panel Top panel c...

Page 9: ...isplay MD4S 9 DIMENSIONS W 413 H 109 5 D 3 8 8 Unit mm BLOCK DIAGRAM MEMORY CONTROL ATRAC AUDIO INTERFACE IC 101 IC 203 ROM IC 104 AD DA IC 301 IC 302 SRAM IC 103 M Com IC 109 DRAM IC 102 FL DISPLAY SUB SHEET MD MECHA UNIT MAIN Part w w w x i a o y u 1 6 3 c o m Q Q 3 7 6 3 1 5 1 5 0 9 9 2 8 9 4 2 9 8 T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 ...

Page 10: ...IGH MID VR302 VR402 VR301 VR401 SW103 SW104 VR303 VR403 VR304 VR404 VR105 VR205 VR108 VR109 209 SW105 SW106 SW 107 SW108 VR106 206 VR107 207 VR309 409 VR306 406 VR307 407 VR208 VR305 VR405 VR308 VR408 VR501 VR502 1 7 6 7 2 1 3 5 1 7 3 5 1 7 IC108 IC105 106 3 5 1 2 7 IC102 1 7 6 1 7 IC113 VR503 6 7 2 1 IC114 6 7 IC120 7 5 1 3 2 1 IC119 6 7 2 1 IC118 VR504 6 7 2 1 IC116 6 7 2 1 IC117 6 7 2 1 IC112 6...

Page 11: ...he bottom cover See Procedure 1 5 2 Remove the two 2 screws marked 520E the six 6 screws marked 520F and the four 4 screws marked 520G The SUB 2 3 circuit board can then be removed Fig 2 3 5 3 Remove the POWER button from the SUB 2 3 circuit board 6 SUB 3 3 Circuit Board 6 1 Remove the bottom cover See Procedure 1 6 2 Remove the two 2 screws marked 520H The SUB 3 3 circuit board can then be remove...

Page 12: ...he screw marked 510 The shield INPUT can then be removed Fig 7 8 4 Remove the two 2 screws marked 520K The MIX 2 2 INPUT circuit board can then be removed Fig 7 8 5 Remove the four 4 screws marked 520L and the two 2 U shaped holders marked 410B The support JACK can then be removed from the MIX 2 2 INPUT circuit board Fig 8 9 Power Transformer 9 1 Remove the bottom cover See Procedure 1 9 2 Remove ...

Page 13: ... Frame synchronized signal input B Frame synchronized signal output B ATRAC data input 2 ATRAC data serial transfer synchronization pulse input 2 ATRAC data error flag 2 ATRAC data f transfer demand 2 ATRAC data output 2 Signal input 2 for ATRAC data synchronized ATRAC data input 3 ATRAC data serial forward synchronization pulse input 3 ATRAC data error flag 3 ATRAC data transfer demand 3 ATRAC da...

Page 14: ... O O O O O O O I O I O I I I I I O O O O O I O I O O O O O O I O I O VSS SA19 EXTIOAO EXTIOA1 EXTIOA2 EXTIOA3 VDD EXTIOA4 EXTIOA5 EXTIOA6 EXTIOA7 VSS XCS1 XCS2 XCS3 MTCIN EXTIOB0 EXTIOB1 EXTIOB2 EXTIOB3 VSS EXTIOB4 EXTIOB5 EXTIOB6 EXTIOB7 VDD VSS ACLK XLATPB XABSPB ADTOB AC2B XARQPB DECB XLATPA XABSPA ADTOA AC2A XARQPA DECA VDD XLATRB XABSRB ADTIB XARQRB ENCB XLATRA XABSRA ADTIA XARQRA ENCA VDD GN...

Page 15: ...6Y 5A 5Y 4A 4Y SN74HC174NSR XD836A00 Hex D Type Flip Flop Q Q D C K C K C K D C K G G CLEAR 1Q 1D 2D 2Q 3D 3Q GND 1 16 2 15 3 14 4 13 5 12 6 11 7 10 8 9 Vcc 6Q 6D 5D 5Q 4D 4Q CK Q D G G Q D C K G C K Q D G Q D SN74HC374ANSR XQ042A00 Octal 3 State D Type Flip Flop Q D CK OE Q D CK OE Q D CK OE Q D CK OE OUTPUT CONTROL 1Q 1D 2D 2Q 3Q 3D 4D 4Q GND 1 20 2 19 3 18 4 17 5 16 6 15 7 14 8 13 9 12 10 11 Vc...

Page 16: ... 61 64 P1 P0 SEGMENT OUTPUT CIRCUIT OUTPUT PORT 2 BIT CGRAM 35 BITX16 CGROM 35 BITX160 DECODER DECODER DISPLAY CODE REGISTER 8 BITX16 SERIAL RECEIVE CIRCUIT CORD COMMAND CONTROL CIRCUIT DISPLAY CONTROL REGISTER DISPLAY CONTROLLER CLOCK GENERATION DIGITAL OUTPUT CIRCUIT 16 TC7S86F1 XR681A00 Exclusive OR Gate TC74LVC4245FS XU229A00 Dual Supply Octal Bus Transceiver 1 5 2 3 4 IN B GND Vcc OUT Y IN A ...

Page 17: ...M moves slightly by moving it gently with a finger Fig 4 2 2 Set the EPROM into the socket by pressing down until it clicks Fig 5 Note Be sure to check the following items after the installation of EPROM 1 Four corners of EPROM are securely fit in the frame 2 There is no damage with hooks or defective hooking EPROM Gap IC Socket Tweezers EPROM EPROM IC Socket 1st pin 1st pin Double circle side OK ...

Page 18: ...N707 3NA V279990 4 CIRCUIT BOARDS MAIN Circuit Board Note See parts list for details of circuit board component parts w w w x i a o y u 1 6 3 c o m Q Q 3 7 6 3 1 5 1 5 0 9 9 2 8 9 4 2 9 8 T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 19: ...2 Component side MONITOR SELECT MONITOR SELECT 3NA V279950 2 MIX 1 2 Circuit Board Note See parts list for details of circuit board component parts w w w x i a o y u 1 6 3 c o m Q Q 3 7 6 3 1 5 1 5 0 9 9 2 8 9 4 2 9 8 T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiao...

Page 20: ... circuit board component parts w w w x i a o y u 1 6 3 c o m Q Q 3 7 6 3 1 5 1 5 0 9 9 2 8 9 4 2 9 8 T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 21: ...CN105 MARK SEARCH 1 SUB 1 3 Circuit Board Note See parts list for details of circuit board component parts w w w x i a o y u 1 6 3 c o m Q Q 3 7 6 3 1 5 1 5 0 9 9 2 8 9 4 2 9 8 T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 22: ...MAIN CN109 to MIX 1 2 CN107 PHONES PUNCH I O to SUB 1 3 CN803 AC IN AUX SEND 2 1 MIDI OUT THRU IN MONITOR OUT L R STEREO OUT L R 2TR IN L R TRACK 3 4 1 2 MIC LINE INPUT 2 1 DIRECT OUT MIX 2 2 INPUT Circuit Board SUB 2 3 Circuit Board SUB 3 3 Circuit Board Note See parts list for details of circuit board component parts w w w x i a o y u 1 6 3 c o m Q Q 3 7 6 3 1 5 1 5 0 9 9 2 8 9 4 2 9 8 T E L 1 3...

Page 23: ...e Track Erase or Part Erase function was cancelled This song has been write protected by another recorder Press the ENTER button to erase or the EXIT button to cancel A fatal error occurred Contact your Yamaha dealer The IN or OUT point is not valid so you cannot use Auto Punch In Out Since this song is not compatible with the MD4S it cannot be played The cue list is invalid No more markers can be...

Page 24: ...TROL KEY REHE REC PLAY STOP PAUSE 1 4 3 OTHERS KEY EJECT PEAK HOLD DISPLAY PITCH ADJUST EDIT UTILITY EXIT ENTER REPEAT A B MARK SEARCH MARK LAST REC SEARCH SET AUTO PUNCH I O SONG SEARCH JOG DATA SHUTTLE CURSOR 1 5 METER INDICATORS 1 5 1 LEVEL METER FL DISPLAY 9 seg TR1 4 STEREO L R 1 5 2 LED INDICATORS PITCH ADJUST EDIT UTILITY REHE REC PLAY 1 5 3 OTHERS PUNCH I O FOOT SWITCH JACK POWER SWITCH MI...

Page 25: ... OUT The display D0 DIAG IN will appear on the FL display tube when the power supply switch is turned on while pressing the DISPLAY key and the SET key It will then enter the following check modes The following check mode the FL LED display the operation key JOG SHUTTLE and the MIDI I O check function In this state the mixer s input signal goes directly from AD to DA and is output Selection of che...

Page 26: ...REO Gain between LINE IN and INSERT OUT Gain between INSERT IN and STEREO OUT Gain between 2TR IN and MONITOR OUT CH1 2 Balanced 2 0 2 dBm Unbalanced 2 0 2 dBm CH3 4 2 0 2 dBm CH5 8 2 0 2 dBm CH1 2 Balanced 2 0 3 dBm Unbalanced 2 0 3 dBm CH3 4 2 0 3 dBm CH1 2 Unbalanced 4 0 2 dBm CH3 4 4 0 2 dBm CH1 2 Unbalanced 2 0 2 dBm CH3 4 2 0 2 dBm CH1 2 10 2 dBm CH1 2 2 0 2 dBm 4 0 2 dBm INPUT CH1 4LINE IN ...

Page 27: ...nd LOW INPUT CH1 4LINE IN 1 kHz OUTPUT STEREO AUX SEND OUT GAIN VOLUME Maximum or Minimum CH FADER Maximum Only the input channel MASTER FADER Maximum ST OUT AUX VOLUME Maximum 1 or 2 Only the input channel AUX SEND OUT The input level is the same as clause 1 clause 2 and clause 3 30 kHz L P F INPUT CH1 4LINE IN Standard input OUTPUT STEREO OUT L R CH MASTER FADER Maximum Other conditions are in s...

Page 28: ...6 7 Reproduction output level Reproduction frequency characteristic Reproduction noise level Reproduction channel separation Reproduction distortion Reproduction output level PB CUE MONITOR Output level 2 0 1 0 dBm 1 dBm Within 1 kHz Standard 33 dBm Within 60 dB AMP W NETW 84 dB 0 015 As follows 5 0 2 0 dBm 5 0 2 0 dBm OUTPUT TRACK DIRECT OUT 1 2 TEST DISK 1 TNO 1 Standard condition in Play mode O...

Page 29: ...k is inputting a signal while four tracks are being recorded simultaneously Check for leakage by replaying INPUT LINE INPUT 5 6 1 kHz 12 dBm OUTPUT TRACK DIRECT OUT1 4 Recording reproduction disk INPUT LEVEL Maximum REC SELECT BUS MASTER FADER Maximum Other conditions are in standard state The mode at this time is REC mode or PLAY mode 4 3 MD SECTION No Item Standard Condition 1 2 3 4 Own recordin...

Page 30: ...sages Notes MTC quarter frame messages are received in MTC Sync slave mode MTC quarter frame messages are transmitted in MTC Sync master mode 1 MMC 2 During MIDI Clock synchronization Mode 1 OMNI ON POLY Mode 2 OMNI ON MONO Mode 3 OMNI OFF POLY Mode 4 OMNI OFF MONO o Yes x No x x x x x x x x x x x x x x x o x x o o x x x x x x x x x x x x x x x x x o 1 x x x 2 x x x x x x MIDI Implementation Chart...

Page 31: ...originally installed A Australian model B British model C Canadian model D German model E European model F French model H North European model I Indonesian model J Japanese model M South African model O Chinese model Q South east Asia model T Taiwan model U U S A model V General export model 110V W General export model 220V X General export model Y Export model Notes DESTINATION ABBREVIATIONS www ...

Page 32: ... 130 520 320 290 520 360 120 250 140 520 220 400 520 30 400 510 520 10b 10a 1 520 520 10a 3 10a 5 10a 4 10a 1 10a 2 10a 3 10a 4 10a 6 10a 5 10a 1 www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 33: ...w Ferrite Core ACCESSORIES MIX 1 2 GY GR BE RE BL RE MIX 2 2 INPUT SUB 1 3 SUB 2 3 SUB 2 3 SUB 2 3 SUB 3 3 MAIN 18P 230mm 30P 295mm P 0 8 25P 235mm P 1 0 8P 50mm P 1 0 11P 50mm P 1 0 14P 150mm P 1 0 ZHR 12P 70L S 72B L 50 BK 1 BL WH BL RE MET41 0191 4 0X8 MFZN2BL 4 0X12 MFZN2BL 3 0X6 MFZN2BL 3 0X8 MFZN2BL 3B 8 Y9294 ESD R 25DB REMARKS MD4S J V291320 MD4S U C V V291330 MD4S H B W V291340 XV347C0 GA...

Page 34: ...C321 C322 C323 C324 C325 C326 C327 C401 C402 C403 C404 C405 C406 C407 C415 C416 C417 C418 C419 C420 C421 C422 C423 C424 C425 C426 C427 C501 C502 C503 C504 C505 C506 C507 C508 C509 C510 C511 C512 C513 C514 C515 C516 C517 C518 C519 C520 C521 C522 C523 C524 C525 C526 C527 C528 PART NO UB051100 UR837220 UB013100 UR837100 UB052100 UR837470 UB051100 UR837100 UM397470 UR837100 UB014330 UB012820 UB051100 ...

Page 35: ...C IC IC IC IC IC IC XLM Connector Phone Jack XLM Connector Phone Jack Phone Jack Phone Jack Phone Jack Phone Jack Phone Jack Phone Jack Coil Coil Coil Ferrite Bead Ferrite Bead Coil Coil Transistor Transistor Transistor Transistor Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip SL 22P 50V J SL 10P 50V D 220 00 10 0V SL 3...

Page 36: ...or chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resisto...

Page 37: ...n Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon...

Page 38: ...Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon R...

Page 39: ...otary Variable Resistor Rotary Variable Resistor Rotary Variable Resistor Rotary Variable Resistor Rotary Variable Resistor Slide Variable Resistor Rotary Variable Resistor Circuit Board Circuit Board Circuit Board Circuit Board Circuit Board Support FL Radiator Tape Radiator Sub Bind Head Tapping Screw B Ceramic Capacitor F Ceramic Capacitor F Electrolytic Cap Electrolytic Cap Electrolytic Cap El...

Page 40: ... Connector Base Post Connector FFC Connector Assembly Connector Assembly Connector Base Post Connector Base Post Diode Diode Diode Diode Diode Diode Diode Zener Diode Diode Stack Diode Diode LED LED LED LED LED LED LED Fuse Fuse Fuse Fuse Holder Fuse Holder Fuse Holder Fuse Holder IC IC IC IC IC IC AC IN Connector AC IN Connector 220 00 50 0V 0 0100 50V Z 0 0100 50V Z 15000 16V 0 100 50V Z 100 00 ...

Page 41: ...on Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor 3P T...

Page 42: ...ch Tact Switch Tact Switch Tact Switch Tact Switch Tact Switch Tact Switch Tact Switch Tact Switch Tact Switch Tact Switch Tact Switch Tact Switch Tact Switch Tact Switch Tact Switch Tact Switch Jog Shuttle Tact Switch Display Tube Circuit Board IC Socket Monolithic Ceramic Cap chip Electrolytic Cap chip Electrolytic Cap chip Electrolytic Cap chip Monolithic Ceramic Cap chip Monolithic Ceramic Cap...

Page 43: ... Ceramic Cap chip Monolithic Ceramic Cap chip Monolithic Ceramic Cap chip Monolithic Ceramic Cap chip Monolithic Ceramic Cap chip Electrolytic Cap chip Electrolytic Cap chip Monolithic Ceramic Cap chip Monolithic Ceramic Cap chip Monolithic Ceramic Cap chip Monolithic Ceramic Cap chip Electrolytic Cap chip Electrolytic Cap chip Monolithic Ceramic Cap chip Monolithic Ceramic Cap chip Monolithic Cer...

Page 44: ...ance chip Chip Inductance chip Chip Inductance chip Chip Inductance chip Chip Inductance chip Chip Inductance chip Chip Inductance chip Chip Inductance chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip 0 100 16V Z 10 16V 10 16V 0 100 16V Z 10 16V 10 16V 0 ...

Page 45: ...p Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip...

Page 46: ... Transistor Digital Transistor Digital Transistor Digital Transistor Quartz Crystal Unit Quartz Crystal Unit Ceramic Resonator Zener Diode Zener Diode Power Transformer Power Transformer Power Transformer AC Cord AC Cord AC Cord AC Cord 100 0K 0 1 J 100 0K 0 1 J 10 0K 0 1 J 10 0K 0 1 J 100 0K 0 1 J 100 0K 0 1 J 10KX4 10KX4 10KX4 10KX4 2SC2SC4081T106 2SC2SC4081T106 DTC114EKA DTC114EKA 2SA2SA1576AT1...

Page 47: ...NC TEST NC TEST INVERTER INVERTER MULTIPLEXER Photo Coupler to MIX 1 2 CN108 OP AMP OP AMP OP AMP OP AMP OP AMP OP AMP DAC ADC DAC ADC MULTIPLEXER MULTIPLEXER MULTIPLEZER ATRAC KEC 92347 74p REGULATOR BUS TRANSCEIVER to SUB 3 3 CN705 to MIX 1 2 CN105 3 Ceramic Capacitor 1 1 MD4S OVERALL CIRCUIT DIAGRAM 1 2 MAIN SUB1 3 SUB3 3 See parts list for details of circuit board component parts Note 1 1 MD4S...

Page 48: ...iginally installed See parts list for details of circuit board component parts Note J U C H BS FUSE TRANS F1 F2 DISTINATION XV350A0 3 15A 250V 2A 250V XV351A0 3 15A 250V 2A 250V XV352A0 T2 5AL 250V MD4S OVERALL CIRCUIT DIAGRAM 2 2 MIX1 2 MIX2 2 INPUT SUB2 3 MIX 1 2 OP AMP OP AMP OP AMP OP AMP OP AMP OP AMP OP AMP OP AMP OP AMP OP AMP OP AMP OP AMP OP AMP OP AMP OP AMP OP AMP to SUB3 3 CN902 to MAI...

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