
1 Specifications 5
2 Safety precautions 6
2.1. General guidelines 6
2.2. Caution for fuse replacement 6
3 Prevention of Electrostatic Discharge (ESD) to Electrostatic
Sensitive (ES) Devices 7
4 Precaution of Laser Diode 8
5 How to replace the Lithium Battery 9
6 Handling the Lead-free Solder 9
6.1. About lead free solder (PbF) 9
7 Each Buttons 10
8 New Features 12
8.1. Quick start function (REC) 12
9 (DVD) Taking out the Disc from RAM-Drive Unit when the
Disc cannot be ejected by OPEN/CLOSE button 13
9.1. (DVD) Forcible Disc Eject 13
9.2. (DVD) When the Forcible Disc Eject can not be done. 13
10 (VHS) Removing Cassette Tape manually 14
10.1. (VHS) Removal by compulsory unloading. 14
10.2. (VHS) Removal by manual operation by rotating the
Loading Motor with the batteries. 14
10.3. (VHS) Take out Cassette Tapemanually after removing the
mechanism 15
11 (DVD) Service Explorer 16
12 (DVD) Self-Diagnosis and Special Mode Setting 19
12.1. (DVD) Self-Diagnosis Functions 19
12.2. (DVD) Special Modes Setting 20
12.3. (DVD) Service Modes 21
13 (VHS) Self-Diagnosis and Special Mode Setting 25
13.1. (VHS) Self-Diagnosis Functions 25
13.2. (VHS) Special Modes Setting 26
13.3. (VHS) Service Modes 26
13.4. (VHS) Self-Diagnosis History Memory Function 27
13.5. (VHS) Description of Self Diagnosis Memory 29
14 Assembling and Disassembling 31
14.1. Disassembly Flow Chart 31
14.2. P.C.B. Positions 32
14.3. Caution with inserting cassette tape when disassembling
the unit 32
14.4. Top Case 33
14.5. Front Panel 33
14.6. Front Jack P.C.B. & FL Drive P.C.B. 34
14.7. Power Unit and Power P.C.B., Rear Panel & Fan Motor 34
14.8. VTR Mechanism Unit 36
14.9. Main P.C.B. 37
14.10. DVD-RAM Drive 37
14.11. Digital P.C.B. 37
14.12. Digital I/F P.C.B. 38
15 Service Fixture and Tools 39
16 Service Positions 40
16.1. Checking and Repairing of Power P.C.B. 40
16.2. Checking and Repairing of & Digital I/F P.C.B. 41
16.3. Checking and Repairing of Main P.C.B. 42
16.4. Checking and Repairing of Digital P.C.B. 43
16.5. Checking and DVD-RAM Drive 44
17 (Power P.C.B.) Caution after replacing parts 45
18 (DVD) Caution after parts replacing parts 45
18.1. (DVD) After replacing the RAM Drive with new one 45
18.2. (DVD) When the unit does not operate normally after
replacing the Timer Microprocessor or Main P.C.B. 45
19 (VHS) Caution after replacing parts 46
19.1. (VHS) Adjustment Procedures after replacing DD Cylinder,
VHS Microprocessor or Main P.C.B. 46
19.2. (VHS) X-VALUE & LINEARITY (P2 and P3 Posts)
ADJUSTMENT 47
19.3. (VHS) Caution after replacing VHS Microprocessor
(IC6001) 48
20 (DVD) Standard Inspection Specifications after Making
Repairs 49
21 Voltage and Waveform Chart 50
21.1. Power P.C.B. 50
21.2. Digital I/F P.C.B. 50
21.3. Main P.C.B. 51
21.4. FL Drive P.C.B. 53
21.5. Front Jack P.C.B. 54
21.6. P9001 Connector 54
21.7. Waveform 55
22 Abbreviations 57
22.1. DVD 57
22.2. VHS 59
23 Block Diagram 63
23.1. Power Supply Block Diagram 63
23.2. Digital I/F Regulator Block Diagram 64
23.3. Digital I/F Timer Block Diagram 65
23.4. System Control & Servo Block Diagram 66
23.5. Audio Block Diagram 67
23.6. Video Block Diagram 68
24 Schematic Diagram 71
24.1. Interconnection Schematic Diagram 71
24.2. Main Power Supply Schematic Diagram 73
24.3. Sub Power Section (Digital I/F P.C.B.(1/3)) Schematic
Diagram (SP) 74
CONTENTS
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DMR-ES30 VP / DMR-ES30 VPC