Table Of Contents - Panasonic DMR-EH80VEG Service Manual

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