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SERVICE MANUAL

No.20933

Apr.2001

COPYRIGHT 2001 VICTOR COMPANY OF JAPAN, LTD.

AX-M9000

AX-M9000

Area Suffix

E

Continental Europe

MONAURAL INTEGRATED AMPLIFIER

Contents

Safety precautions --------------------------------------------------------1-2
Disassembly method -----------------------------------------------------1-3
Adjustment method -------------------------------------------------------1-10
Description of major ICs -------------------------------------------------1-11~21

PHASE

SPEAKER

1

2

1

-180û

2

1

2

3

DOWN

UP

4

5

6

PRESENCE

EXT

PROCESSOR

LINE

MUTE

GAIN CONTROL

ATT

SLEEP

EACH

MONAURAL INTEGRATED AMPLIFIER

AX M9000

STANDBY/ON

1
2
3
...
»

Содержание AX-M9000

Страница 1: ...inental Europe MONAURAL INTEGRATED AMPLIFIER Contents Safety precautions 1 2 Disassembly method 1 3 Adjustment method 1 10 Description of major ICs 1 11 21 PHASE SPEAKER 1 2 1 180û 2 1 2 3 DOWN UP 4 5 6 PRESENCE EXT PROCESSOR LINE MUTE GAIN CONTROL ATT SLEEP EACH MONAURAL INTEGRATED AMPLIFIER AX M9000 STANDBY ON ...

Страница 2: ...abinet screw heads headphone jack control shafts etc to be sure the product is safe to operate without danger of electrical shock Do not use a line isolation transformer during this check Plug the AC line cord directly into the AC outlet Using a Leakage Current Tester measure the leakage current from each exposed metal parts of the cabinet particularly any exposed metal part having a return path t...

Страница 3: ...front panel assembly from the back of the body Remove the four screws E attaching the front panel assembly from the upper part of the body Remove the four screws F attaching the front panel assembly on both sides of the body Disconnect the harness from the connectors CN601 CN602 CN603 CN604 and CN605 of the system control board assembly Remove the screw G attaching the earth wire The front panel a...

Страница 4: ...ght screws I attaching the rear panel on the upper part of the set Remove the six screws J two screws K nine screws L and one screw M attaching the rear panel Draw the rear panel upward from the behind at the legs while pulling the rear panel outward Remove the four screws N attaching the speaker output cord If necessary remove the power plug connector clamp etc Fig 6 Fig 7 Fig 8 H Fig 9 I I J L J...

Страница 5: ...emoved 1 2 3 Removing the front panel section Removing the control switch board assembly 1 2 and display board assembly See Fig 10 to 11 Prior to performing the following procedure remove the metal cover and front panel assembly Remove the four screws R attaching the system control board assembly Disconnect the connectors CN611 CN612 CN613 CN614 CN615 and CN616 Removing the system control board as...

Страница 6: ...the connectors CN401 and CN402 Disconnect the harness which is extending from the fan from the connector CN453 Disconnect the harness which is extending from the signal processing board from the connector CN301 After removing each screw U attaching the power AMP sub board assembly 1 2 take off the power AMP sub board assembly from the heat sink Remove the seven screws V attaching transistor Q335 Q...

Страница 7: ...ode source selector board can be removed Remove the four screws X attaching the cannon connector on the signal processing board Then the rear terminal panel can be removed 1 2 3 Removing the current mode source selector board assembly and rear terminal panel See Fig 16 Removing the signal processing board assembly See Fig 17 Removing the power switch board assembly See Fig 18 Prior to performing t...

Страница 8: ...1 Removing the core transformer for pre AMP See Fig 19 Removing the transformer for power AMP See Fig 20 Prior to performing the following procedure remove the metal cover and the front panel assembly Remove the four screws B attaching the power transformer for power AMP Fig 20 Fig 19 A B Power transformer for pre AMP Power transformer for power AMP ...

Страница 9: ...lue wire CN insertion Red Black wire CN insertion Fig 1 Fig 2 Arrangement drawings for the clamp binding In order to secure the performance of the machine refer to the following arrangement drawings when the lines are clamped White wire 2 Red wire 2 White RED wire Brown wire S CLAMP Red wire 2 Black wire White wire Red wire S CLAMP S CLAMP S CLAMP ...

Страница 10: ...inutes adjust the voltage to 3 5 0 5mV Since there is backlash thoroughly adjust it 4 After elapsing two minutes make sure that the voltage falls within 3 5 7mV In case where the voltage does not fall within the specified value readjust it to the values specified in 3 above 1 No signal no load rated power Confirm under the room temperature of 20 25 1 INPUT LINE 1 The output at the input terminal s...

Страница 11: ...be secured In addition when the output of the shift register is changed during H the latch output will be changed simultaneously Output of the shift register at the final stage Enable terminals of 01 to 08 Reset of the shift register and latch Ground Ground Ground Output of the shift register at the 8th stage Output of the shift register at the 7th stage Output of the shift register at the 6th sta...

Страница 12: ... I I I I I I I I I Pin function Key input 10 Key input 11 Key input 12 Temperature detect 1 Temperature detect 2 AD reference voltage terminal 5 0V 2 0 5 0V supply Clock out Clock in 0 0V supply GND Open Memory extended mode SA data out SA data in SA clock SB data out SB data in SB clock Request for the communication output between the sets Reset terminal VOL CS VOL clock VOL out Input ATT Mute LE...

Страница 13: ...tector 1 2 3 4 5 6 7 A OUTPUT A INPUT A INPUT V B OUTPUT B INPUT B INPUT OUTPUT INPUT INPUT TOP VIEW Q110 Q109 Q111 D104 D102 Q102 Q107 Q108 Q4 Q3 Q5 Q6 Q2 Q1 Q7 Q8 R1 Q104 Q103 Q105 Q106 Q101 D103 D101 Q112 GND GND V 8 1 Pin layout 2 Block diagram ...

Страница 14: ...AX M9000 1 14 NJM5532M D W IC152 153 Presence circuit amp V OUTPUT V INPUT INPUT 1 2 3 4 5 6 7 8 V B OUT B IN B IN A OUT A IN A IN V 1 Pin layout 2 Block diagram ...

Страница 15: ...1 OP Amp 1 2 3 4 5 6 7 Offset Trim In In Offset Trim V Output NC 8 Pin DIP SO 8 V 8 Pin layout 1 2 3 4 5 6 7 8 9 10 11 12 13 14 1A 1Y 2A 2Y 3A 3Y GND Vcc 6A 6Y 5A 5Y 4A 4Y TOP VIEW TC74HC04AF IC264 Data line buffer A Y L H L H Pin layout ...

Страница 16: ...X X X X X X X X X X X H H H H H H H H H H H H H H H H H H H H H H L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L NONE NONE NONE Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7 H H H H H H H H Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7 A B C 1 2 3 SELECT INOUT ENABLE INPUTS G2A G2B G1 4 5 6 15 14 13 12 11 10 9 7 Y0 Y1 Y2 Y3 Y4 Y5...

Страница 17: ...1C 1Y 3C 3B 3A 3Y TOP VIEW X Don t Care 2 Truth table A B C Y H X X L H H X X X X L L H L L L 1 Pin layout 1 2 3 4 5 6 7 8 9 10 11 12 13 14 1A 1B 1Y 2A 2B 2Y GND Vcc 4B 4A 4Y 3B 3A 3Y TOP VIEW X Don t Care TC74VHC08F X IC281 Dataline buffer A B Y L L L L H L H L L H H H 1 Terminal layout 2 Truth table ...

Страница 18: ...mes to L TC74HC373HF X IC522 IC523 IC524 Shift register for relay control OE LE H L L L 15 16 17 18 19 20 D3 Q3 GND D7 D6 Q6 Q5 D5 D4 Q4 LE INPUTS OUTPUTS X L H H X X L H D Q Z Qn L H D Q L LE OE D0 D1 D2 D3 D4 D5 D6 D7 Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 19 16 15 12 9 6 5 2 3 4 7 8 13 14 17 18 D Q L D Q L D Q L D Q L D Q L D Q L D Q L 1 Pin layout 3 Block diagram 2 Truth table ...

Страница 19: ... X IC532 Monostable multivibrator 11 12 13 14 15 16 GND 1Cx 1Q 2Q 2CLR 2B 2A 2 Block diagram 3 Timing diagram D B B trr trr L H Vref Vref C2 F F R RX CX RX CX CX QN QP VCC VCC Q CK Q A A CLR CLR Q Q Q Q VIH VOL VOH VOH VrefH VrefL GND VOL VIH VIH VIL VIL VIL VCC tw OUT tw OUT tw OUT 1 Pin layout ...

Страница 20: ...tion IC 1 2 3 4 5 6 7 8 D1 R4 R9 Q6 Q20 R5 R6 D4 Q4 R10 R11 Q7 R13 R16 R18 R17 D6 R21 R22 Q15 D7 R19 R15 R20 Q12 Q14 R25 R24 R28 Q19 Q18 R27 Q17 R26 Q16 Q13 Q11 Q10 Q9 Q8 R14 Q5 D2 D3 Q1 R3 Q2 2 4 7 5 1 6 8 3 1 Pin layout 2 Block diagram ...

Страница 21: ...AX M9000 1 21 VC5022 2 IC302 Advanced super A 1 2 3 4 5 6 7 8 9 R2 220 R8 220 Q4 Q2 Q5 Q6 Q7 Q8 Q9 Q10 Q1 R1 1 6k R3 1 6k R5 51 R6 51 R4 51 R7 1 6k Q3 Block diagram ...

Страница 22: ...h GmR Advanced Super A DC Servo Advanced Gm Volume SPK RY SPK RY Main AC Lines MJ Send Indicator Sleep Cont Volume Disply Luch Relay Driver ID Select Reset Inhibit Thermal Compa Thermal Key Input Thermal AVR for Pre driv Rectifire for Drive Stage AVR for RY Fan AVR for I V Convert AVR for AD Gm Volume Rectifire 3 for Output Stage AVR for Digital Vol Cont AVR for Function OpAmp AC Primary Section O...

Страница 23: ...D123TK X 1 50 10K 1SS133 T2 DTA114YKA X 1SS133 T2 1SS133 T2 DTC114YKA X DTC114YKA X 1k 10k 10k 100k 1SS133 T2 2 2 50 0 01 0 01 1SS133 T2 1SS119 02 T2 11E2 T5 470 6 3 47000 6 3 470 6 3 GP1U561 1k 10K 1 5 1 5 1 5 1 5 470 6 3 DTB113ZK X TC74VHC123AF X 1 5 TC74HC27AF W 10k 220 TC74HC27AF W TC74HC27AF W QAX0246 001Z 1M DTD123TK X DTD123TK X 10K TC74HC27AF W 1 5 QGA2001C1 08 0 47 QGA2001C1 10 10K 1 50 1...

Страница 24: ...C2240 GL T 2SA970 GL T 33P 2 2k 2 2k 33P 0 0047 180 680 150 470 680 2SA1546 K 470 HZ3ALL T2 47k 33P 2SC4001 K 120 2SC458 D T 120 2SA1546 K 33P 680 2SC4001 K 470 47k HZ3ALL T2 2SA1029 D T 120 120 2SA1546 K 2SC4001 K 330 33P 33P 330 220k 220k 2 2 2 2 2 2 10P 33P DTA114YKA X 750 10 10 10 2 7K DTD123TK X 22 50 750 10 10 10 2 2 2 2 2 2 DTA114YKA X VC5022 2 11E2 11E2 47P 120k TC74VHC08F X 27k 12P 100P 1...

Страница 25: ... R314 R315 R316 R317 R318 R320 R321 R322 R323 R324 R325 R326 R327 R328 R329 R330 R343 R344 R345 R346 R347 R348 R349 R350 R351 R352 R353 R354 R356 R357 R358 R359 R361 R362 R363 R364 R365 R366 R367 R368 R369 R370 R371 R372 R373 R374 R375 R376 R381 R382 R383 R384 R385 R386 R387 R388 R389 R390 R391 R392 R395 R396 R397 R398 R399 R400 R401 R402 R403 R451 R452 R453 R454 R457 R458 R459 R460 R461 R462 R463...

Страница 26: ...02 R303 R304 R305 R306 R307 R308 R309 R379 R311 R312 R313 R314 R315 R316 R317 R318 R320 R321 R322 R323 R324 R325 R326 R327 R328 R329 R330 R343 R344 R345 R346 R347 R348 R349 R350 R351 R352 R353 R354 R356 R357 R358 R359 R361 R362 R363 R364 R365 R366 R367 R368 R369 R370 R371 R372 R373 R374 R375 R376 R381 R382 R383 R384 R385 R386 R387 R388 R389 R390 R391 R392 R395 R396 R397 R398 R399 R400 R401 R402 R5...

Страница 27: ...28 EP501 C604 C109 C141 C142 C143 C144 C150 C153 C154 C155 C156 C157 C158 C159 C160 C201 C202 C203 C204 R267 C221 C222 C223 C224 C225 C226 C251 C252 C253 C254 C255 C256 C257 C258 C259 C260 C281 C282 C291 WR101 WR102 WR103 WR104 WR112 CN251 CP251 CP252 CP257 CP258 D201 D202 D203 D204 D205 D206 D207 D208 D251 D252 D253 D254 D255 D256 D257 D258 D259 D260 D281 D282 D286 D287 C263 IC108 IC141 IC152 IC1...

Страница 28: ...C259 C260 C281 C282 C291 WR101 WR102 WR103 WR104 WR112 CN251 CP251 CP252 CP257 CP258 D201 D202 D203 D204 D205 D206 D207 D208 D251 D252 D253 D254 D255 D256 D257 D258 D259 D260 D281 D282 D286 D287 C263 IC108 IC141 IC151 IC201 IC251 IC252 IC253 IC254 IC255 IC256 IC261 IC262 IC263 L101 L102 Q201 Q202 Q203 Q204 Q205 Q206 Q207 Q208 Q221 Q222 Q223 Q224 Q225 Q226 Q227 Q228 Q229 Q230 Q251 Q252 Q253 Q254 Q2...

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