Daewoo DV-F24N, Service Manual

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TABLE OF CONTENTS
SECTION 1. CONTROLS AND FUNCTIONS
..........................................................................................................2
SECTION 2. ELECTRICAL ADJUSTMENTS
2-1. SERVO CIRCUIT ADJUSTMENT METHOD .....................................................................................................................5
2-2. VIDEO CIRCUIT ADJUSTMENT METHOD.......................................................................................................................6
2-3. AUDIO CIRCUIT ADJUSTMENT METHOD....................................................................................................................12
SECTION 3. TROUBLE SHOOTING FLOW CHART
3-1. POWER CIRCUIT.............................................................................................................................................................13
3-2. LOGIC CIRCUIT ...............................................................................................................................................................15
3-3. SERVO/SYSCON CIRCUIT .............................................................................................................................................18
3-4. AUDIO CIRCUIRT ............................................................................................................................................................23
3-5. VIDEO CIRCUIT ...............................................................................................................................................................25
SECTION 4. BLOCK DIAGRAM
4-1. Y.C./HEAD AMP/AUDIO/INPUT SELECTOR BLOCK DIAGRAM.................................................................................29
4-2. SYSCON/LOGIC BLOCK DIAGRAM..............................................................................................................................30
4-3. PIF/OSD BLOCK DIAGRAM ...........................................................................................................................................31
SECTION 5. CIRCUIT DIAGRAM
5-1. CONNECTION DIAGRAM ...............................................................................................................................................32
5-2. POWER CIRCUIT (SMPS) ...............................................................................................................................................33
5-3. SYSCON CIRCUIT...........................................................................................................................................................35
5-4. LOGIC CIRCUIT ...............................................................................................................................................................36
5-5. LOGIC CIRCUIT (DV-F54/F34N) .....................................................................................................................................37
5-6. PIF & INPUT SELECTOR CIRCUIT .................................................................................................................................38
5-7. HEAD-AMP CIRCUIT.......................................................................................................................................................39
5-8. VIDEO CIRCUIT ...............................................................................................................................................................40
5-9. AUDIO CIRCUIT...............................................................................................................................................................41
5-10. OSD CIRCUIT ................................................................................................................................................................42
SECTION 6. VOLTAGE CHART
6-1. IC VOLTAGE.....................................................................................................................................................................43
6-2. TR VOLTAGE....................................................................................................................................................................50
SECTION 7. COMPONENTS LOCATION GUIDE ON PCB (BOTTOM VIEW)
7-1. PCB HEAD-AMP..............................................................................................................................................................51
7-2. PCB SHUTTLE (DV-F54/F34N) .......................................................................................................................................51
7-3. PCB MAIN ........................................................................................................................................................................52
7-4. PCB LOGIC ......................................................................................................................................................................53
SECTION 8. DISASSEMBLY
8-1. PACKING AS....................................................................................................................................................................55
8-2. SET TOTAL ASSEMBLY..................................................................................................................................................56
8-3. SET TOTAL ASSEMBLY (DV-54/F34N)..........................................................................................................................57
8-4. FRONT PANEL ASSEMBLY (DV-F54/F34N)..................................................................................................................58
8-5. SHUTTLE STATION ASSEMBLY (DV-F54/F34N) ..........................................................................................................59
SECTION 9. ELECTRICAL PARTS LIST
9-1. STANDARD PART NUMBER CODING ..........................................................................................................................60
9-2. ELECTRICAL PARTS LIST ..............................................................................................................................................62
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