Panasonic DMR-EH80VEG, Руководство по обслуживанию

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1 INTRODUCTION 5
2 SAFETY PRECAUTIONS 5
2.1. GENERAL GUIDELINES 5
3 PREVENTION OF ELECTROSTATIC DISCHARGE (ESD) TO
ELECTROSTATIC SENSITIVE (ES) DEVICES 6
4 PRECAUTION OF LASER DIODE 7
5 ABOUT LEAD FREE SOLDER (PbF) 7
6 PREVENTION OF STATIC ELECTRICITY DISCHARGE 8
6.1. GROUNDING FOR ELECTROSTATIC BREAKDOWN
PREVENTION 8
6.2. HANDLING PRECAUTIONS FOR OPTICAL PICK-UP
UNIT 8
7 GENERAL DESCRIPTION 9
8 NEW FEATURES 10
8.1. QUICK START FUNCTION (REC) 10
9 (DVD) TAKING OUT THE DISC FROM RAM-DRIVE UNIT WHEN
THE DISC CANNOT BE EJECTED BY BUTTON 11
9.1. (DVD) FORCIBLE DISC EJECT 11
9.2. (DVD) WHEN THE FORCIBLE DISC EJECT CAN NOT
BE DONE. 11
10 (VHS) REMOVING OF CASSETTE TAPE 12
10.1. (VHS) REMOVAL BY COMPULSORY UNLOADING. 12
10.2. (VHS) REMOVAL BY MANUAL OPERATION. 12
10.3. (VHS) TAKE OUT CASSETTE TAPE MANUALLY AFTER
REMOVING THE MECHANNISM 13
11 (DVD) SERVICE EXPLORER 14
12 (DVD) SELF-DIAGNOSIS AND SPECIAL MODE SETTING 17
12.1. (DVD) SELF-DIAGNOSIS FUNCTIONS 17
12.2. (DVD) SPECIAL MODES SETTING 19
12.3. (DVD) SERVICE MODES 21
13 (VHS) SELF-DIAGNOSIS AND SPECIAL MODE SETTING 27
13.1. (VHS) SPECIAL MODES SETTING 27
13.2. (VHS) SERVICE MODES 27
13.3. (VHS) SELF-DIAGNOSIS FUNCTIONS 28
14 ASSEMBLING AND DISASSEMBLING 30
14.1. DISASSEMBLY FLOW CHART 30
14.2. P.C.B. POSITIONS 30
14.3. CAUTION WHILE INSERTING CASSETTE TAPE WHEN
DISASSEMBLING THE UNIT 30
14.4. TOP CASE 31
14.5. FRONT PANEL 31
14.6. FRONT JACK P.C.B. & FL DRIVE P.C.B. 32
14.7. POWER P.C.B. 32
14.8. REAR PANEL & FAN MOTOR 33
14.9. VCR MECHANISM UNIT 34
14.10. MAIN P.C.B. 35
14.11. TUNER / CONVERTER /DECODER 35
14.12. DVD-RAM DRIVE 35
14.13. DIGITAL P.C.B. 36
14.14. HARD DISC DRIVE 37
14.15. SD CARD P.C.B. 39
14.16. DIGITAL I/F P.C.B. 39
15 SERVICE FIXTURE AND TOOLS 40
16 SERVICE POSITIONS 41
16.1. CHECKING AND REPAIRING OF POWER P.C.B. 41
16.2. CHECKING AND REPAIRING OF DIGITAL I/F P.C.B. 42
16.3. CHECKING AND REPAIRING OF MAIN P.C.B. 44
16.4. CHECKING AND REPAIRING OF DVD-RAM DRIVE 45
16.5. CHECKING AND REPAIRING OF HARD DISC DRIVE 46
16.6. CHECKING AND REPAIRING OF SD CARD P.C.B. 47
17 (DVD) CAUTION AFTER REPLACING PARTS 48
17.1. (DVD) AFTER REPLACING THE RAM DRIVE 48
17.2. (DVD) AFTER REPLACING THE TIMER
MICROPROCESSOR 48
17.3. (DVD) AFTER REPLACING EEPROM (IC37502) 48
18 (VHS) CAUTION AFTER REPLACING PARTS 49
18.1. ADJUSTMENT PROCEDURES AFTER REPLACING DD
CYLINDER, VHS MICROPOCESSOR OR MAIN P.C.B 49
18.2. (VHS) X-VALUE & LINEARITY (P2 AND P3 POSTS)
ADJUSTMENT 50
18.3. (VHS) CAUTION AFTER REPLACING VHS
MICROPROCESSOR (IC6001) 51
19 (DVD) STANDARD INSPECTION SPECIFICATIONS AFTER
MAKING REPAIRS 52
20 VOLTAGE AND WAVEFORM CHART 53
20.1. WAVEFORM CHART 59
21 ABBREVIATIONS 60
21.1. DVD 60
21.2. VHS 62
22 INTERCONNECTION DIAGRAM 67
23 BLOCK DIAGRAM 69
23.1. POWER SUPPLY BLOCK DIAGRAM 69
23.2. DIGITAL I/F REGULATOR BLOCK DIAGRAM 70
23.3. SYSTEM CONTROL, SERVO & TIMER BLOCK
DIAGRAM 71
23.4. AUDIO BLOCK DIAGRAM 72
23.5. VIDEO BLOCK DIAGRAM 73
23.6. DIGITAL I/F P.C.B. BLOCK DIAGRAM 75
24 SCHEMATIC DIAGRAM 77
24.1. POWER SUPPLY 77
24.2. DVD OUTPUT 79
24.3. INTERFACE 80
24.4. IO / TUNER 81
24.5. SYSCON / SERVO / TIMER MAIN 82
24.6. VHS AUDIO 83
24.7. VIDEO 84
24.8. NICAM DECODER 85
24.9. FRONT JACK 86
24.10. FL DRIVE 87
24.11. SD CARD / DV IN 88
25 PRINTED CIRCUIT BOARD 89
25.1. POWER P.C.B. (COMPONENT SIDE) 89
CONTENTS
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DMR-EH80VEG / DMR-EH80VEB