1 Safety Precaution 3
1.1. General guidelines 3
2 Warning 4
2.1. Prevention of Electrostatic Discharge (ESD) to
Electrostatic Sensitive (ES) Devices 4
2.2. Precaution of Laser Diode 5
2.3. Service caution based on legal restrictions 6
3 Service Navigation 7
3.1. Service Information 7
3.2. Caution for DivX 7
4 Specifications 8
5 New Feature 10
5.1. About DivX 10
6 Location of Controls and Components 15
7 Operation Instructions 17
7.1. Taking out the Disc from DVD-Drive Unit when the Disc
cannot be ejected by OPEN/CLOSE button 17
8 Service Mode 18
8.1. Self-Diagnosis and Special Mode Setting 18
9 Service Fixture & Tools 27
10 Disassembly and Assembly Instructions 28
10.1. Disassembly Flow Chart 28
10.2. P.C.B. Positions 28
10.3. Top Case 29
10.4. Front Panel 29
10.5. SD Card P.C.B. 29
10.6. RAM/Digital P.C.B. Module 29
10.7. DV Jack P.C.B. 31
10.8. HDD 31
10.9. Rear Panel 32
10.10. Power P.C.B. 33
10.11. Main P.C.B. and Front (L) P.C.B. 34
10.12. Tuner P.C.B. 34
11 Measurements and Adjustments 35
11.1. Service Positions 35
11.2. Caution for Replacing Parts 39
11.3. Standard Inspection Specifications after Making Repairs
41
12 Block Diagram 43
12.1. Power Supply Block Diagram 43
12.2. Analog Video Block Diagram 45
12.3. Analog Audio Block Diagram 46
12.4. Analog Timer Block Diagram 47
13 Schematic Diagram 49
13.1. Interconnection Schematic Diagram 49
13.2. Power Supply Schematic Diagram 50
13.3. Main Net (1/4) Section (Main P.C.B. (1/4)) Schematic
Diagram (M) 51
13.4. Main Net (2/4) Section (Main P.C.B. (1/4)) Schematic
Diagram (M) 52
13.5. Main Net (3/4) Section (Main P.C.B. (1/4)) Schematic
Diagram (M) 53
13.6. Main Net (4/4) Section (Main P.C.B. (1/4)) Schematic
Diagram (M) 54
13.7. A/V I/O (1/4) Section (Main P.C.B. (2/4)) Schematic
Diagram (AV) 56
13.8. A/V I/O (2/4) Section (Main P.C.B. (2/4)) Schematic
Diagram (AV) 57
13.9. A/V I/O (3/4) Section (Main P.C.B. (2/4)) Schematic
Diagram (AV) 58
13.10. A/V I/O (4/4) Section (Main P.C.B. (2/4)) Schematic
Diagram (AV) 59
13.11. Nicam Decoder Section (Main P.C.B. (3/4)) Schematic
Diagram (DE) 61
13.12. Timer (1/4) Section (Main P.C.B. (4/4)) Schematic
Diagram (T) 62
13.13. Timer (2/4) Section (Main P.C.B. (4/4)) Schematic
Diagram (T) 63
13.14. Timer (3/4) Section (Main P.C.B. (4/4)) Schematic
Diagram (T) 64
13.15. Timer (4/4) Section (Main P.C.B. (4/4)) Schematic
Diagram (T) 65
13.16. Tuner Pack Schematic Diagram 66
13.17. SD Card Schematic Diagram 67
13.18. Front (L) Schematic Diagram 68
13.19. DV Jack Schematic Diagram 68
14 Printed Circuit Board 69
14.1. Power P.C.B. 69
14.2. Main P.C.B. 70
14.3. Tuner P.C.B. and DV Jack P.C.B. 75
14.4. SD Card P.C.B. and Front (L) P.C.B. 76
15 Appendix for Schematic Diagram 77
15.1. Voltage and Waveform Chart 77
16 Parts and Exploded Views 83
16.1. Exploded Views 83
16.2. Replacement Parts List 85
CONTENTS
Page Page
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DMR-EH55EE / DMR-EH55GC / DMR-EH55GCS / DMR-EH55GN
