Marantz PM7200N1B Service Manual
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Marantz PM7200N1B Service Manual

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Service Manual
www.electronicsrepair.net
REMARK : This service manual shows only the differences between the model PM8000
/N1B /N1G and the model PM7200 /N1B/N1G.
All other information is described in the service manual of the model PM8000 (code
number: 3120 785 22011 and 276W855010). For the dispatch of the after-sales service
parts, refer to those service manuals with the first priority.
Therefore, please use this document with referring to the model PM8000 service manual
without fail.
The changed parts are listed below. Not listed parts are the same to the model PM8000.
POS. NO. VERS.
NOTE : "nsp" PART IS LISTED FOR REFERENCE ONLY, MARANTZ WILL NOT SUPPLY THESE PARTS.
PART NO.
(FOR EUR)
COLOR
200
20AW248010 FRONT PANEL BLACK
/N1B
200
/N1G
20AW248020 FRONT PANEL GOLD
387
20AW851310 USER GUIDE
DESCRIPTION
3120 201 60420
3120 201 60430
3120 205 20390
PM7200
PM7200 /
N1B/N1G

Integrated Amplifier

PART. NO.
(MJI)
20AW248010
20AW248020
20AW851310
20AW855010 MIT
First Issue 2002.07
R

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Summary of Contents for Marantz PM7200N1B

  • Page 1: Integrated Amplifier

    3120 201 60420 /N1B 20AW248010 /N1G 20AW248020 FRONT PANEL GOLD 3120 201 60430 20AW248020 20AW851310 USER GUIDE 3120 205 20390 20AW851310 NOTE : "nsp" PART IS LISTED FOR REFERENCE ONLY, MARANTZ WILL NOT SUPPLY THESE PARTS. PM7200 20AW855010 MIT First Issue 2002.07...

  • Page 2: Table Of Contents

    Service PM7000 / N1B, /N1G, /U1B PM8000 / N1B, /N1G, /F1B, /F1N Manual Integrated amplifier TABLE OF CONTENTS SECTION PAGE 1. SPECIFICATIONS ............................1 2. TEST EQUIPMENT REQUIRED SERVICING ................... 2 3. IC INFORMATIONS ............................ 3 4. BLOCK DIAGRAM ............................5 5.
  • Page 3 MARANTZ Parts for your equipment are generally available to our National Marantz Subsidiary or Agent. ORDERING PARTS : Parts can be ordered either by mail or by Fax.. In both cases, the correct part number has to be specified.

  • Page 4: Specifications

    1. SPECIFICATIONS Power output (class AB operation) RMS 8ohms (20 Hz - 20 kHz) ........95W DIN 8 ohms ..............105W THD at 8 ohms RMS rated output ....... 0.03% Damping factor ..............150 Power out put (PM8000 classA operation) RMS 8 ohms (20 Hz - 20 kHz) ........

  • Page 5: Test Equipment Required Servicing

    2.TEST EQUIPMENT REQUIRED FOR SERVICING Item Distortion Analyzer Distortion measurements Audio Oscillator Sinewave and squarewave signal source AC VTVM Voltage measurements (AC) Oscilloscope Waveform analysis and trouble shooting and ASO alignment DC VTVM Voltage measurements (DC) AC Wattmeter Monitors primary power to amplifier Line Voltmeter Monitors of primary voltage to amplifier Adjust level of primary voltage to amplifier...

  • Page 6: Ic Informations

    3. IC INFORMATIONS MICROPROCESSOR TMP47C200BM BLOCK DIAGRAM LARGE CURRENT OUTPUT PORT SDIP42-P-600 POWER GND. FLAG H RESISTER L RESISTER PROGRAM DATA MEMORY ACCUMLATOR RAM ADDRESS BUFFER COUNTER (RAM) STACK PROGRAM MEMORY (ROM) HOLD INPUT HOLD INTERRUPT INTERRUPT HOLD OPERATION MODE CONTROL PRIORITY RESISTER (SENC INPUT)(KE0) PRIORITY F/F...
  • Page 7 TA7317P (Position NO.7290) NJM2068 (Position NO.7501,7502,7503) NJM2068 TA7317P A OUTPUT A -INPUT B OUTPUT B-INPUT A +INPUT B+INPUT NJM2068 -INPUT +INPUT OUTPUT DETECT PC817 (Position NO.7269,7270) MUTING REGULATOR (POWER ON/OFF) PC817 RELAY SCHMITT DETECT DRIVE (OVER CURRENT) DETECT DISCHAGE (IDC VOLAGE) STRAGHT LB1641(Position NO.7402) NJM2114(Position NO.7555,7655)

  • Page 8: Block Diagram

    4. BLOCK DIAGRAM PHONO EQ PHONO SYSTEM 1 POWER AMP SYSTEM 2 TUNER SOURCE DIRECT AUX 1 VOLUME AUX 2 HEADPHONES SOURCE SELECTOR TAPE CD-R/MD FLAT AMP TAPE BALANCE CD-R/MD VOLUME SOURCE TAPE CD-R CD-R TAPE PROCESSOR TREBLE BASS REC SELECTOR TONE AMP 3139 119 27890 dd wk922...

  • Page 9: Wiring Diagram

    5. WIRING DIAGRAM MAIN VOLUME FUNCTION TONE 3139 113 3354 3139 113 3404 3139 113 3404 3139 113 3357 (PM7000) (PM7000) PROTECT 3139 113 3405 3139 113 3405 (PM8000) (PM8000) POWER 3139 113 3357 FRONT 3139 113 3404 (PM7000) 3139 113 3405 SPK SW (PM8000) 3139 113 3404...

  • Page 10: Schematic Diagram And Parts Location (Parts Side)

    6. SCHEMATIC DIAGRAM AND PARTS LOCATION (PARTS SIDE) FUNCTION & TAPE IN/OUT CIRCUIT 1257 H13 5604 J 5 1551 B 3 5605 H 8 1601 F 3 5606 H10 1602 G 2 5607 I10 1604 D13 5608 I11 7551 FUNCTION 3555 3575 TAPE IN/OUT...
  • Page 11 POWER CIRCUIT 1201 F 2 1202 F 4 1203 E 4 1204 E 5 1205 E 5 From From 1206 D 5 POWER POWER 1207 F 4 1208 F 5 1209 F 5 1225 1211 F 5 1224 5203 1212 F 7 BLUE 1213 E12 220V...
  • Page 12 FRONT CIRCUIT 1401 B6 3487 F3 1402 B6 3488 F2 1403 H3 3489 G3 1405 A13 3490 G2 1406 B13 3491 H3 1407 D1 3492 H2 1408 G12 3493 H3 2401 B12 3494 H2 DIPMATE 1405 2403 B6 3495 C11 2404 B8 3496 C12 2405 B8...
  • Page 13 MAIN CIRCUIT 1251 E 1 1258 E21 2254 H 3 2262 H 7 2270 I17 2278 K15 3253 B 2 3261 B 3 3269 A 4 3277 C 6 3285 E 6 3293 A 7 3301 C 8 3311 C 8 3319 B10 3327 C12 3335 C13...
  • Page 14 TONE CIRCUIT 1201 B1 3524 D1 1202 B1 3525 D4 1203 C3 3526 E4 1204 C4 3527 E8 JQ-B 1500-A E6 3528 E8 1501 2511 1500-B E7 3529-A E3 2513 3521 1500-C D6 3529-B D3 RK14K 1500-D D5 3537 C2 3511-B 1501 A1 3538 E2...
  • Page 15 SPK SW CIRCUIT ENCODER CIRCUIT 1505 A1 1509 C4 1521 E4 3530 E2 3533 A2 6529 D1 9508 C2 1507-A B2 1510 A3 2533 A2 3531 E2 3534 A2 7529 D2 1507-B B3 1511 E2 2534 A2 3532 D3 3535 D2 7530 D2 1404 A3 1409 A1...
  • Page 16 VOLUME CONTROL CIRCUIT (PM7000) 1651 B1 1655 D1 2654 D3 2658 C4 2662 D6 2666 C6 2670 C4 3653 A2 3657 B3 3661 A3 3665 B4 3669 B5 3673 B6 3681-A C2 7651 B3 7655-A D5 1652 B8 2651 A1 2655 B3 2659 A4 2663 B7...
  • Page 17 VOLUME CONTROL CIRCUIT (PM8000) 1651 C1 7655-A D5 1652 B8 7655-B B5 1653 A8 T117 C1 1654 E1 T118 C1 1655 E1 T119 C1 2651 B1 T120 C1 EH-B 2652 D2 T121 A8 1653 2653 B2 T122 A8 2654 E2 T123 A8 2655 C3 T124 A8...
  • Page 18 FUNCTION & TAPE IN / OUT & POWER BOARD 1257 B 6 3562 C 3 9624 B 3 1232 A 8 3139 118 85360 - ... 3357p3 dd wk922 pm68/pwpanel-p3-970903-1 mech pm68/pwpanel-p3-970903-1 spcs 1551 C 1 3563 C 4 9625 B 3 1233 A 8 1601 B 1 3564 C 4...
  • Page 19 TONE BOARD (PM7000) TONE BOARD (PM8000) This assembly drawing shows a summary of all possible versions. For components used in a specific version see schematic diagram and respective This assembly drawing shows a summary of all possible versions. For components used in a specific version see schematic diagram and respective parts list.
  • Page 20 7256 B 2 9262 B 1 3357 1261 F 3 3313 C 3 7257 B 3 9263 C 1 2282 MARANTZ 3365 2281 1262 F 2 3314 C 2 7258 B 2 9264 C 1 3139 118 52220 - ...

  • Page 21: Exploded View And Parts List

    7. EXPLODED VIEW AND PARTS LIST EXPLODED VIEW PM8000 Only 3139 119 31970 dd wk921...
  • Page 22 VERS. POS. PART NO. DESCRIPTION COLOR (PCS) PM7000 BLK 3139 117 88070 FRONT PANEL BLACK PM8000 BLK 3139 117 88080 FRONT PANEL BLACK PM7000 GLD 3139 117 88050 FRONT PANEL GOLD PM8000 GLD 3139 117 88060 FRONT PANEL GOLD 4822 454 11825 PLATE, INDICATION 3139 114 66790 WINDOW IR BLACK...

  • Page 23: Idling Current And Dc Offset Voltage Alignment

    8. IDLING CURRENT AND DC OFFSET VOLTAGE ALIGNMENT 8.1 Quiescent Current Adjustment for Class AB -Set to CD mode with no input, minimum volume position & mains supply at 230 V ±5 %. -Power up the unit, adjust SLOWLY 3299 (L) & 3300 (R) until voltage across L-Channel -----3335 (T007 / T006) &...

  • Page 24: Electrical Parts List

    9. ELECTRICAL PARTS LIST NOTE ON SAFETY FOR FUSIBLE RESISTOR : ASSIGNMENT OF COMMON PARTS CODES. RESISTORS : 1) GD05 x x x 140, Carbon film fixed resistor, ±5% 1/4W The suppliers and their type numbers of fusible resistors are as : 2) GD05 x x x 160, Carbon film fixed resistor, ±5% 1/6W follows ;...
  • Page 25 POS. VERS. PART NO. POS. VERS. PART NO. DESCRIPTION DESCRIPTION COLOR COLOR (PCS) (PCS) FUNCTION CIRCUIT BOARD SEMICONDUCTORS CAPACITORS 6605 4822 130 30621 DIODE 1N4148 2551 4822 126 12147 CER. 22NF 10% 25V 6608 4822 130 30621 DIODE 1N4148 2552 4822 126 12147 CER.
  • Page 26 POS. VERS. PART NO. POS. VERS. PART NO. DESCRIPTION DESCRIPTION COLOR COLOR (PCS) (PCS) RESISTORS 3416 3651 PM7000 4822 116 83874 220K 5% 0.5W 4822 116 83881 390R 5% 0.5W 3651 PM8000 4822 116 52244 15K 5% 0.5W 3422 3652 PM7000 4822 116 83874 220K 5% 0.5W...
  • Page 27 POS. VERS. PART NO. POS. VERS. PART NO. DESCRIPTION DESCRIPTION COLOR COLOR (PCS) (PCS) 7404 4822 130 40959 TRS. BC547B 2509 4822 122 33293 CER. 100pF 5% 50V 7405 4822 130 40959 TRS. BC547B 2510 4822 122 33293 CER. 100pF 5% 50V 7406 4822 130 40959 TRS.
  • Page 28 POS. VERS. PART NO. POS. VERS. PART NO. DESCRIPTION DESCRIPTION COLOR COLOR (PCS) (PCS) POWER CIRCUIT BOARD MAIN CIRCUIT BOARD CAPACITORS CAPACITORS 2201 2020 558 90382 CER. CERSAF KC-F 250V S 2251 4822 124 12023 ELECT 47 F 20% 25V 10N PM20 2252 4822 124 12023...
  • Page 29 POS. VERS. PART NO. POS. VERS. PART NO. DESCRIPTION DESCRIPTION COLOR COLOR (PCS) (PCS) 3285 4822 116 52264 27K 5% 0.5W SEMICONDUCTORS 3286 4822 116 52264 27K 5% 0.5W 6251 3287 4822 116 83868 150R 5% 0.5W 4822 130 30621 DIODE 1N4148 3288...
  • Page 30 POS. VERS. PART NO. POS. VERS. PART NO. DESCRIPTION DESCRIPTION COLOR COLOR (PCS) (PCS) SPK PROTECT CIRCUIT BOARD CAPACITORS 2277 4822 121 51387 FILM 10NF 20% 16V 2278 4822 124 40433 ELECT 47 F 20% 25V 2279 4822 124 40433 ELECT 47 F 20% 25V 2281...

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