Marantz PM7000 Service Manual
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Marantz PM7000 Service Manual

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Table of Contents

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Service
Manual
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1. SPECIFICATIONS ...................................................................................................................................... 1
2. TEST EQUIPMENT REQUIRED SERVICING ........................................................................................... 2
3. IC INFORMATIONS .................................................................................................................................... 3
4. BLOCK DIAGRAM ...................................................................................................................................... 5
5. WIRING DIAGRAM ..................................................................................................................................... 7
6. SCHEMATIC DIAGRAM AND PARTS LOCATION (PARTS SIDE) ........................................................... 9
7. EXPLODED VIEW AND PARTS LIST ...................................................................................................... 33
8. IDLING CURRENT AND DC OFFSET VOLTAGE ALIGNMENT ............................................................. 34
9. ELECTRICAL PARTS LIST ...................................................................................................................... 35
Please use this service manual with referring to the user guide (D.F.U) without fail.
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N1B, /N1G, /U1B
N1B, /N1G, /F1B, /F1N
PAGE
R
276W855010 ACT
3120 785 22011
First Issue:1999.09

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Summary of Contents for Marantz PM7000

  • Page 1: Table Of Contents

    8. IDLING CURRENT AND DC OFFSET VOLTAGE ALIGNMENT ............. 34 9. ELECTRICAL PARTS LIST ........................35 Please use this service manual with referring to the user guide (D.F.U) without fail. - PM7000 / PM8000 - 276W855010 ACT 3120 785 22011 First Issue:1999.09...
  • Page 2 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 3: 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 4: 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 Variable Autotransformer...

  • Page 5: 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 6 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 7: 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 Downloaded from...

  • Page 8: Wiring Diagram

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

  • Page 9: 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 10 1232 J 3 1233 J 3 1234 K 3 BLACK 1401 L13 2201 G 2 2202 E 3 1206 From 2204 F14 PM7000 ONLY YKE31-0092 VOLTAGE 2205 F15 FUSE HOLDER 9201 2206 G15 2207 H15 2208 I15 9202 2209 I15...
  • Page 11 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 2403 B6 3495 C11 1405 2404 B8 3496 C12 2405 B8...
  • Page 12 T044 T037 3364 T045 T038 3286 T046 T039 T047 T040 2260 T048 T041 -PWD 4.7p* -PWD T049 T042 -S/C T050 T043 # FOR PM7000 ONLY * FOR PM8000 ONLY 3139 118 89970 dd wk921 Downloaded from www.Manualslib.com manuals search engine...
  • Page 13 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 1500-B E7 3529-A E3 2511 2513 3521 1500-C D6 3529-B D3 RK14K 1500-D D5 3537 C2 3511-B 1501 A1 3538 E2...
  • Page 14 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 15 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...
  • Page 16 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 17 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 18 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 19 VOLUME BOARD (PM7000) MAIN & SP PROTECT BOARD 1251 A 3 3304 D 2 6281 D 2 9256 B 2 PM68/mainpanel-p2-970507-1 mech PM68/mainpanel-p2-970507-1 spcs 3139 113 33542 3139 113 33542 1252 A 3 3305 D 4 7251 B 3 9257 B 1...

  • Page 20: Exploded View And Parts List

    7. EXPLODED VIEW AND PARTS LIST EXPLODED VIEW PM8000 Only 3139 119 31970 dd wk921 Downloaded from www.Manualslib.com manuals search engine...
  • Page 21 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...

  • Page 22: 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 23: 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 24 FILM 2N2 10% 50V 1601 4822 265 10311 CONNECTOR, 2P 2562 4822 121 70654 FILM 2N2 10% 50V 1602 PM7000 4822 267 20453 CONNECTOR, 6P 2563 4822 121 51399 FILM 47NF 10% 50V 1602 PM8000 4822 265 11061 CONNECTOR, 6P...
  • Page 25 POS. VERS. PART NO. DESCRIPTION DESCRIPTION COLOR (PCS) COLOR (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 26 POS. VERS. PART NO. POS. VERS. PART NO. DESCRIPTION DESCRIPTION COLOR (PCS) COLOR (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 27 220 F 20% 25V 2205 4822 124 12028 ELECT 12000 F 20% 63V 2256 4822 124 12022 ELECT 220 F 20% 25V 2257 PM7000 4822 122 33519 CER. 470pF 10% 50V 2206 4822 124 12028 ELECT 12000 F 20% 63V 2207 PM8000...
  • Page 28 4822 116 83868 150R 5% 0.5W 4822 130 30621 DIODE 1N4148 3288 4822 116 83868 150R 5% 0.5W 6266 3289 PM7000 4822 116 83874 220K 5% 0.5W 6267 3289 PM8000 4822 116 83884 47K 5% 0.5W 5322 130 34834 DIODE...
  • Page 29 POS. VERS. PART NO. POS. VERS. PART NO. DESCRIPTION DESCRIPTION COLOR (PCS) COLOR (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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