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SERVICE MANUAL VIDEO CASSETTE RECORDER SERVICE MANUAL (FC230Y/FC431Y/FD240Y/FD941NY/FC290Y/FC491Y/FC991NY/FC999NY) CAUTION BEFORE SERVICING THE UNIT, READ THE "SAFETY PRECAUTIONS" IN THIS MANUAL. MODELS : LV2378/LV2578/LV2288/LV2788/LV3398/LV3598/LV3798/LV3799(FC230Y/FC431Y/FD240Y/FD941NY/FC290Y/FC491Y/FC991NY/FC999NY) ex.denom.com ex.denom.com P/NO : 3829RVP044A MARCH, 2003 LV2378/LV2578 VIDEO IN AV3 L-AUDIO IN-R PROG. REC/ITR P/STILL LV2288/LV2788 LV3398/LV3598/LV3798/LV3799 ex.denom.com MODELS : LV2378/LV2578/LV2288/LV2788/LV3398/LV3598/LV3798/LV3799 ex.denom.com TABLE OF CONTENTS SECTION 1 SUMMARY KEY TO ABBREVIATIONS . . . . . . . . . . . . . . . . 1-1 PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS . . . . . . . . . . . . . . . . . . 1-2 SERVICING PRECAUTIONS . . . . . . . . . . . . . . . 1-3 PROPOSAL FOR APPLYING SHORT PROTECTION . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4 SERVICE NOTICE ON REPLACING EEPROM . .1-5 SERVICE INFORMATION FOR EEPROM IC SETTING . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6 SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . 1-7 CIRCUIT DIAGRAMS . . . . . . . . . . . . . . . . . . . .3-29 1. Power Circuit Diagram . . . . . . . . . . 2. Tuner, NICAM/A2 Circuit Diagram . 3. A/V, SECAM, VPS Circuit Diagram 4. System Circuit Diagram . . . . . . . . . 5. Hi-Fi, SCART Circuit Diagram . . . . · CIRCUIT VOLTAGE CHART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-29 .3-31 .3-33 .3-36 .3-39 .3-41 PRINTED CIRCUIT BOARD DIAGRAMS . . . . .3-45 1. MAIN P.C.Board . . . . . . . . . . . . . . . . . . . . . . . .3-45 2. KEY (LEFT) P.C.Board . . . . . . . . . . . . . . . . . . .3-47 SECTION 4 MECHANISM NOTE) The table of contents for this section is edited NOTE) separately. SECTION 2 CABINET & MAIN CHASSIS SERVICE METHOD . . . . . . . . . . . . . . . . . . . . . 2-1 Electrical Part . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 EXPLODED VIEWS . . . . . . . . . . . . . . . . . . . . . . 2-2 1. Cabinet & Main Frame Section . . . . . . . . . . . . . 2-2 2. Packing & Accessory Section . . . . . . . . . . . . . . 2-3 SECTION 5 REPLACEMENT PARTS LIST · Mechanical Section . . . . . . . . . . . . . . . . . . . . . . . .5-1 · Electrical Section . . . . . . . . . . . . . . . . . . . . . . . . .5-4 SECTION 3 ELECTRICAL ELECTRICAL ADJUSTMENT POINTS ARRANGEMENT . . . . . . . . . . . . . . . . . . . . . . . .3-1 ELECTRICAL ADJUSTMENT PROCEDURES . . 3-2 1. Servo Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 ELECTRICAL TROUBLESHOOTING GUIDE . . . 3-4 1. Power Circuit(SMPS) . . . . . . . . . . . . . . . . . . . . . 3-4 2. Servo Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . .3-7 3. System & Front Panel Circuit . . . . . . . . . . . . . . .3-10 4. Y/C Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-12 5. Tuner/IF Circuit . . . . . . . . . . . .