Marantz-PM7200-int-sm 电路图 维修手册.pdf
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1、? ? ? ? ? ? ? ? ?! ?#?$%?2 ? ? ?5?8? 8?7(? ?!? ?5?8?!58:?80 / 70 dB General Power Requirements /N versions . 230 V AC,50 Hz /U versions . 120 V AC,60 Hz Dimensions Width. 440 mm Height . 159 mm Depth . 370.5 mm Weight Unit alone . 12.3 kg Specifications subject to change without prior notice 1 2.TES
2、T EQUIPMENT REQUIRED FOR SERVICING Item Distortion Analyzer Audio Oscillator AC VTVM Oscilloscope DC VTVM AC Wattmeter Line Voltmeter Variable Autotransformer Circuit Tester Shortting Plug Use Distortion measurements Sinewave and squarewave signal source Voltage measurements (AC) Waveform analysis a
3、nd trouble shooting and ASO alignment Voltage measurements (DC) Monitors primary power to amplifier Monitors of primary voltage to amplifier Adjust level of primary voltage to amplifier Trouble shooting Shorts amplifier input to eliminate noise pickup 2 MICROPROCESSOR TMP47C200BM BLOCK DIAGRAM 3. IC
4、 INFORMATIONS VSS VDD FLAG ALU HOLD OPERATION MODE CONTROL SYSTEM CONTROL TIMING GENERATOR CLOCK GENERATOR IN-OUTPUT PORT IN-OUTPUT PORT (TIME/COUNTER INPUT) (IEXTERNAL INTERRUPT) IN-OUTPUT PORT (SERIAL PORT) LARGE CURRENT OUTPUT PORT INPUT PORT ACCUMLATOR H RESISTERL RESISTER RAM ADDRESS BUFFER INT
5、ERRUPT CONTROL INTERRUPT PRIORITY F/F DATA MEMORY (RAM) STACK DCTC2TC1 PROGRAM COUNTER INTERRUPT PRIORITY RESISTER SZ KE INTEVAL TIMER 12 BIT TIMER COUNTER (2ch) 4 BIT SERIAL INTERFACE R7 P1 C P2 R8K0 K03 K02 K01 K00 R92(SCK) R91(SO) R90(SI) R83(T1) R82(INT1) R81(T2) R80(INT2) R63 R62 R61 R60 R53 R5
6、2 R51 R50 R43 R42 R41 R40 R6R5R4 1234 R9 DATA CONVERTER TABLE PROGRAM MEMORY (ROM) INSTRUCTION RESISTER INSTRUCTION DECODER 394041 2524232220191817 16151413 42 21 POWER GND. HOLD INPUT HOLD (SENC INPUT)(KE0) RESET INPUT RESET TEST TERMINAL TEST OSCILATER CONNECT XIN TERMINAL(RF) XUOT 34 33 30 31 32
7、P23 P22 P21 P20 P13 P12 P11 P10 R73 R72 R71 R70 SDIP42-P-600 3 L L L L L L L L L L L L L L LED INDICATOR AUX1 DISPLAY LED INDICATOR TUNER DISPLAY LED INDICATOR CD DISPLAY LED INDICATOR PHONO DISPLAY SOURCE INPUT SWITCH(ROTARY ENCODER) bit1 SOURCE INPUT SWITCH(ROTARY ENCODER) bit2 PROCESSOR IN-OUT SW
8、ITCH MANUAL MUTE NOT USED (GND) CLOCK 4.00 MHz (IN) CLOCK 4.00 MHz (OUT) SYSTEM RESET POWER DOWN CHECK REMOTE CONTROL INPUT (RC-5) MODEL SELECT 1 MODEL SELECT 2 MODEL SELECT 3 SERIAL DATA(RC-5 REMOTE CONTROL) ENABLE (REMOTE CONTROL) STAND-BY RELAY CONTROL POWER SUPPLY FUNCTIONACT H L L L L L L L L L
9、 L L L L L L L L L L PIN no. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 MANUAL MUTE SIGNAL MUTE SIGNAL(SOURCE/MONITOR SWITCH) MOTOR DRIVE VOLUME UP MOTOR DRIVE VOLUME DOWN MONITOR INPUT SWITCH (TAPE3) MONITOR INPUT SWITCH (TAPE2) MONITOR INPUT SWITCH (TAPE1) SOURCE INPUT SWITCH (AUX2) SOU
10、RCE INPUT SWITCH (AUX1) SOURCE INPUT SWITCH (TUNER) SOURCE INPUT SWITCH (CD) SOURCE INPUT SWITCH (PHONO) LED INDICATOR STAND BY DISPLAY LED INDICATOR MUTE DISPLAY LED INDICATOR PROCESSOR DISPLAY LED INDICATOR TAPE3 DISPLAY LED INDICATOR TAPE2 DISPLAY LED INDICATOR TAPE1 DISPLAY LED INDICATOR SOURCE
11、DISPLAY LED INDICATOR AUX2 DISPLAY GND. R40 R41 R42 R43 R50 R51 R52 R53 R60 R61 R62 R63 R70 R71 R72 R73 P10 P11 P12 P13 VSS MMUT FMUT VOUP VODW T3K T2K T1K AX2K AX1K TUNK CDK PHOK LSTB LMUT LPRO LTP3 LTP2 LTP1 LSOU LAX2 PORT NAME LAX1 LTUN LECD LPHO 1RS 2RS PRK MUK RES PDW RXRC EN1 EN2 EN3 TXRC ENTX
12、 RELY 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 P20 P21 P22 P23 K00 K01 K02 K03 TEST XIN XOUT RESET HOLD R80 R81 R82 R83 R90 R91 R92 VDD SDIP42-P-600 MICROPROCESSOR TMP47C200BM Position NO.7401 G 26 27 28 2935 36 37 389 10 11 125678 SPW VDD R92(SCK) R91(SO) R90(SI) R83(T1) R82(I
13、NT1) R81(T2) R80(INT2) HOLD(KE0) RESET XOUT XIN TEST K03 K02 K01 K00 P23 P22 P21 P20 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 R40 R41 R42 R43 R50 R51 R52 R53 R60 R61 R62 R63 R70 R71 R72 R73 P10 P11 P12 P13 Vss 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 4 TA7317P (Pos
14、ition NO.7290) 7 4 6 9 5 8 1 3 2 Q1 Q2 Q3 Q4 R1 R2 Q5 Q6 Q7Q10Q11 Q13 Q12 Q9Q8 Q19 Q20 Q18 R5 Q17Q16Q15Q14 R4 R3 OR DETECT (POWER ON/OFF) MUTING DISCHAGE SCHMITT REGULATOR RELAY DRIVE 2 3 7 89 SUB STRAGHT 5 6 4 GND 1 DETECT (IDC VOLAGE) DETECT (OVER CURRENT) TA7317P 81097 4 6 VZPRE DRIVER INPUT LOGI
15、CIN2 1 5 GND IN1 23 OUT1P1 LB1641 LB1641 LB1641(Position NO.7402) V +INPUT INPUT OUTPUT V+ NJM2068 18 27 36 4 A OUTPUT A -INPUT A +INPUT V-5 V+ B OUTPUT B-INPUT B+INPUT A B NJM2068 NJM2068 (Position NO.7501,7502,7503) 12 43 12 43 PC817 PC817 (Position NO.7269,7270) NJM2114(Position NO.7555,7655) NJM
16、2114 5 A B VCC1P2OUT2VCC2 A OUTPUT A -INPUT A +INPUT V- 18 27 36 4 V+ B OUTPUT B-INPUT B+INPUT V+ V- OUTPUT +INPUT -INPUT NJM2114 4. BLOCK DIAGRAM 5 6 BASSTREBLE SELECTOR SOURCE OFF ON VOLUME DIRECTSOURCE POWER AMP FLAT AMP REC SELECTOR SOURCE TAPE CD R CD R TAPE OFF PROCESSOR OUT IN OUT TAPE CD-R/M
17、D IN CD-R/MD TAPE TUNER AUX 2 AUX 1 CD PHONO PHONO EQ + + + + + TONE AMP BALANCE VOLUME HEADPHONES SYSTEM 1 SYSTEM 2 + - - + 3139 119 27890 dd wk922 78 5. WIRING DIAGRAM (/02B)10n 3139 113 3404 (PM7000) 3139 113 3405 (PM8000) 3139 113 3354 3139 113 3404 FRONT 3139 113 3404 (PM7000) VOLUMEFUNCTION 31
18、39 113 3357 (PM8000) 3139 113 3357 3139 113 3405 (PM8000) (PM7000) 3139 113 3404 3139 113 3405 TONE POWER TAPE IN/OUT SPK PROTECT MAIN TRAFO ENCODER 3139 113 3357 DIP 3139 113 3404 (PM7000) 3139 113 3405 (PM8000) SPK SW MAIN DIP DIP 10R F PIN (PM7000) 3139 113 3405 (PM8000) TONE 47R 10R 9 10 6. SCHE
19、MATIC DIAGRAM AND PARTS LOCATION (PARTS SIDE) 0V 0V 0V 0V 7V7V 7V 7V 7V 7V 7V 7V 14V 14V 0V 0V 0V 0V 28V 28V 0V 0V DIRECT TAPE2 TAPE1DIRECT PHONO CD TUNER AUX1 AUX2 COPY1-2 COPY2-1 SOURCE SOURCE GND OUT IN PROCESSOR AUX2 AUX1 TUNER CD PHONO 2R O RG 2R/ 1R O 1R/ 2L O 2L/ 1L O LG 1L/ 2R O RG 2R/I 1R O
20、 1R/I 2L O 2L/I 1L O LG 1L/I R RG LG L +15V PHONO -15V CD DIRECT TUNER +24V AUX1 COPY2-1 TAPE1 SOURCE TAPE2 AUX2 COPY1-2 To VOLUME From FRONT From FUNCTION FUNCTION To FUNCTION TAPE IN/OUT 2R i 2R o 1R o 1L_o 2L_o 1R_i 2L_i 1L_i OUT TAPE IN OUT CD-R/MD IN 2R_i 1R_i 1L_i 2L_i 3605 H 3 3604 H 3 3603 G
21、 3 3602 F 3 3601 F 3 5551 E 5 3576 B10 3575 A10 3574 D 9 3573 A 9 3572 C 8 3571 B 8 3570 C 8 3569 B 8 3568 C 6 3567 A 7 3637 C12 3566 C 6 3565 A 6 3564 C 7 3563 B 7 3562 C 6 3561 B 6 3560 C 5 3559 B 5 3558 D 6 3557 A 7 3635 C12 3556 D 5 3555 A 7 3554 C 4 3553 A 4 3552 C 4 3551 A 4 2659 C12 2656 N18
22、2655 M18 2654 N16 3634 C13 2653 M16 2652 H10 2651 I11 2650 J 5 2649 I 5 2648 H 5 2647 F 5 2646 F18 2645 F18 2644 E18 3633 C13 2643 D18 2642 D18 2641 C18 2640 B18 2639 B18 2638 F16 2637 F16 2636 E16 5603 I 5 2635 D16 2634 C16 3632 G18 2633 C16 2632 B16 2631 B16 2624 L 3 2623 L 3 2622 K 3 2621 K 3 262
23、0 J 3 2619 J 3 2618 I 3 3631 E18 2617 H 3 2616 H 3 2615 G 3 2614 F 3 2613 F 3 2612 L 2 2611 L 2 2610 K 2 2609 K 2 2608 J 2 3630 D18 2607 J 2 2606 I 2 2605 I 2 2604 H 2 2603 G 2 2602 G 2 2601 F 2 2575 E 5 2574 B 9 2573 C 9 3629 C18 2572 C 9 2571 B 9 2570 D 8 2569 A 8 2568 C 7 2567 B 7 2566 C 7 2565 B
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