Panasonic DVD-LS93P, Service Manual

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1 SAFETY PRECAUTIONS 4
1.1. GENERAL GUIDELINES 4
2 PREVENTION OF ELECTRO STATIC DISCHARGE (ESD) TO
ELECTROSTATICALLY SENSITIVE (ES) DEVICES 4
3 PRECAUTION OF LASER DIODE 5
4 HOW TO REPLACE THE LITHIUM BATTERY 6
5 LITHIUM ION BATTERY 6
6 ABOUT LEAD FREE SOLDER (PbF) 6
7 HANDLING PRECAUTIONS FOR TRAVERSE DECK 7
7.1. Handling of optical pickup 7
7.2. Grounding for electrostatic breakdown prevention 7
8 DISASSEMBLY, REASSEMBLY AND SERVICE POSITION 8
8.1. Disassembly 9
8.2. P.C.B. location 10
8.3. Main cabinet of the unit 10
8.4. Traverse assembly 11
8.5. Optical pick-up unit 12
8.6. Disc motor 12
8.7. Main P.C.B. 13
8.8. Operation P.C.B. 13
8.9. Monitor assembly 13
8.10. Disc cover 14
8.11. Monitor cover 14
8.12. Mono arm 15
8.13. Inverter P.C.B. 16
8.14. LCD panel 16
8.15. Service position 17
9 SELF-DIAGNOSIS FUNCTION AND SERVICE MODE 18
9.1. Optical Pickup Breakdown Diagnosis 18
9.2. UHF displays 19
9.3. Service Mode Table 1 20
9.4. DVD Self Diagnostic Function-Error Code 20
9.5. Last Error Code saved during NO PLAY 21
9.6. Service mode table 22
9.7. Lens cleaning 23
10 SERVICE PRECAUTIONS 24
10.1. Recovery after the dvd player is repaired 24
10.2. Firmware version-up of the DVD player 24
11 ADJUSTMENT PROCEDURES 25
11.1. Service Tools and Equipment 25
11.2. Important points in adjustment 25
11.3. Storing and Handling Test Discs 25
11.4. Optical adjustment 26
11.5. Electrical adjustment (LCD) 28
11.6. Electrical check (Video output check) 29
12 Abbreviations 30
13 VOLTAGE CHART 32
13.1. MAIN P.C.B. 32
13.2. INVERTER P.C.B. 35
14 BLOCK DIAGRAM 37
14.1. OVERALL BLOCK DIAGRAM 37
14.2. POWER SUPPLY BLOCK DIAGRAM 38
14.3. SERVO BLOCK DIAGRAM 39
14.4. AUDIO BLOCK DIAGRAM 40
14.5. VIDEO BLOCK DIAGRAM 41
15 INTERCONNECTION SCHEMATIC DIAGRAM & SCHEMATIC
DIAGRAM NOTES 43
15.1. INTERCONNECTION SCHEMATIC DIAGRAM 43
15.2. SCHEMATIC DIAGRAM NOTES 44
16 SCHEMATIC DIAGRAM 45
16.1. CHARGE BATTERY SECTION (MAIN P.C.B. (1/9))
SCHEMATIC DIAGRAM 45
16.2. POWER SUPPLY SECTION (MAIN P.C.B. (2/9))
SCHEMATIC DIAGRAM 46
16.3. SERVO SECTION (MAIN P.C.B. (3/9)) SCHEMATIC
DIAGRAM 47
16.4. OPTICAL PICK UP SECTION (MAIN P.C.B. (4/9))
SCHEMATIC DIAGRAM 48
16.5. DV2 SECTION (MAIN P.C.B. (5/9)) SCHEMATIC
DIAGRAM 49
16.6. VIDEO OUT SECTION (MAIN P.C.B. (6/9)) SCHEMATIC
DIAGRAM 50
16.7. AUDIO OUT SECTION (MAIN P.C.B. (7/9)) SCHEMATIC
DIAGRAM 51
16.8. OPERATION SECTION (MAIN P.C.B. (8/9)) SCHEMATIC
DIAGRAM 52
16.9. LCD IF SECTION (MAIN P.C.B. (9/9)) SCHEMATIC
DIAGRAM 53
16.10. OPERATION SECTION (OPERATION P.C.B.)
SCHEMATIC DIAGRAM 54
16.11. INVERTER SECTION SCHEMATIC DIAGARAM 55
17 CIRCUIT BOARD ASSEMBLY 57
17.1. MAIN P.C.B. (1/2) (COMPONENT SIDE) 57
17.2. MAIN P.C.B. (2/2) (FOIL SIDE) 58
17.3. OPERATION & INVERTER P.C.B. 59
18 EXPLODED VIEWS 61
18.1. Casing Parts & Mechanism Section Exploded View 61
18.2. Mechanism Section Exploded View 62
18.3. Packing & Accessories Exploded View 63
19 REPLACEMENT PARTS LIST 64
CONTENTS
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DVD-LS90PP / DVD-LS93P