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Sony MZ-R37 specifications SCHEMATIC DIAGRAM — MAIN /3, 19, 20

Models: MZ-R37

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MZ-R37

5. SCHEMATIC DIAGRAM — MAIN SECTION (3/3) —

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Note:

•All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums.

•All resistors are in Ω and 1/4 W or less unless otherwise specified.

•% : indicates tolerance.

•C : panel designation.

•A : B+ Line.

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• Power voltage is dc 4.5 V and fed with regulated dc power				• Signal path.
supply from external power voltage jack.				F : PB (analog)
• Voltage is dc with respect to ground under no-signal				L : REC (analog)
condition.				J : PB (digital)
no mark : PB				c : REC (digital)
(	) : REC

•Voltages are taken with a VOM (Input impedance 10 MΩ). Voltage variations may be noted due to normal produc- tion tolerances.

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Sony MZ-R37 specifications SCHEMATIC DIAGRAM — MAIN /3, 19, 20

Contents

MZ-R37 SPECIFICATIONSUS Model Canadian Model AEP Model UK Model E Model Australian Model Tourist ModelPrecautions for Using Optical Pick-up KMS-280A Precautions for Laser Diode Emission CheckOptical Pick-upflexible board SELF-DIAGNOSTIC TABLE OF CONTENTSDIAGRAMS DISASSEMBLY– 4 – SECTION 1 GENERAL2-2.TEST MODE SETTING SECTION SELF-DIAGNOSTIC2-3.OPERATION IN TEST MODE SETTING 2-5. SELF-DIAGNOSTICMODE• Description of Error Indication Codes – 6 –Problem • Description of History Codes– 7 – SECTION DISASSEMBLY3-1.PANEL, BOTTOM 3-2.PANEL SV ASSY, FRONT– 8 – 3-4.CONNECTOR3-3.LCD MODULE 1 CN8013-5.MAIN BOARD – 9 –3-6.PANEL SV ASSY, UPPER 2 1.7x4.5, tapping3-7.CABINET SV ASSY – 10 –3-8.OP BLOCK ASSY 1 MD, step– 11 – Notes for Installation of the OP Block Assy3-9.HOLDER ASSY • Location of the Flexible Board marked lineXX XX SERVO 4-2.TEST MODE SETTINGSECTION 4 TEST MODE – 12 –32 OF S-GAIN 32 OF SERVOOA 000a4F OA 000b4FXX XX MECHA XX XX AUDIO4-5.OVERALL ADJUSTMENT MODE ASSY MODE XX XX POWERXXASSY-M 51CD-RUN4-6.HYBRID MODE, KEY CHECK MODE – 16 –PRECAUTIONS FOR ADJUSTMENT SECTION ELECTRICAL ADJUSTMENTSLASER POWER CHECK MO TRAVERSE ADJUSTMENTLOW REFLECTION CD TRAVERSE ADJUSTMENT – 18 –CD TRAVERSE ADJUSTMENT ConnectionCD RF LEVEL CHECK – 19 –RF waveform – 20 – SECTION DIAGRAMS6-1.IC PIN DESCRIPTIONS – 21 – • IC801 CXP740010 SYSTEM CONTROL – 22 –– 23 – Signal path 6-2.BLOCK DIAGRAM — SERVO SECTION —MZ-R37 – 25 –– 27 – 6-4.BLOCK DIAGRAM — SYSTEM CONTROL SECTION —– 28 – – 29 –– 31 – 6-5.PRINTED WIRING BOARD– 32 – – 33 –– 36 – – 35 –– 37 – • Waveforms– 39 – – 38 –– 40 – • Waveform– 42 – – 41 –MZ-R37 – 45 – – 44 –– 46 – IC761 BA6966FV-E2 – 47 –IC803 AK6420AM-E IC901 MPC18A35FTA – 49 – SECTION EXPLODED VIEWS7-1.PANEL SECTION 2 3 14 13 12 11 9 10 87-2.CABINET SV ASSY SECTION – 50 –52 62 69 667-3.MECHANISM DECK SECTION MT-MZR37-161 101 104 – 51 –108 111 109 124 113SECTION ELECTRICAL PARTS LISTMAIN – 52 –MAIN – 53 –MAIN – 54 –MAIN – 55 –– 56 – MZ-R37 MAINSony Corporation 9-926-952-12• ACCESSORIES & PACKING MATERIALS SERVICE MANUALSUPPLEMENT-1 Ver 1.2 1999.SCHEMATIC DIAGRAM PRINTED WIRING BOARDSUPPLEMENT-2 Ver 1.3 1999.1 A B C SIDE AD E F G H Page SIDE A 2. PRINTED WIRING BOARD — US MODEL —1 A B C D E F G HPage MZ-R37 • Difference of Schematic Diagram US Model– 12 – – 13 –MZ-R37 4. SCHEMATIC DIAGRAM — MAIN SECTION 2/3 —– 15 – – 17 –MZ-R37 5. SCHEMATIC DIAGRAM — MAIN SECTION 3/3 —– 19 – – 20 –MAIN 6. ELECTRICAL PARTS LIST– 21 – – 22 – MAINRef. No – 23 – MAINRef. No – 24 – MAINPart No – 25 – MAINPart No 7. Corrections • EXPLODED VIEWS • ELECTRICAL PARTS LIST/MISCELLANEOUSINCORRECT CORRECT