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 Location of Controls and Components 10
6 Operation Instructions 12
6.1. Taking out the Disc from DVD-Drive Unit when the Disc
cannot be ejected by OPEN/CLOSE button 12
7 Service Mode 15
7.1. Self-Diagnosis and Special Mode Setting 15
8 Service Fixture & Tools 27
9 Disassembly and Assembly Instructions 28
9.1. Disassembly Flow Chart 28
9.2. P.C.B. Positions 29
9.3. Top Case 30
9.4. Front Panel 30
9.5. HDD, ATAPI P.C.B. 31
9.6. RAM/Digital P.C.B. Module 33
9.7. DV Jack P.C.B. 34
9.8. Rear Panel 34
9.9. Power P.C.B. 35
9.10. HDMI P.C.B. 35
9.11. Main P.C.B., Front Jack P.C.B. and Front (L) P.C.B. 36
10 Measurements and Adjustments 37
10.1. Service Positions 37
10.2. Caution for Replacing Parts 41
10.3. Standard Inspection Specifications after Making Repairs
43
11 Block Diagram 45
11.1. Power Supply Block Diagram 45
11.2. Analog Video Block Diagram 47
11.3. Analog Audio Block Diagram 48
11.4. Analog Timer Block Diagram 49
11.5. HDMI Block Diagram 50
12 Schematic Diagram 51
12.1. Interconnection Schematic Diagram 51
12.2. Power Supply Schematic Diagram 52
12.3. Main Net (1/4) Section (Main P.C.B. (1/4)) Schematic
Diagram (M) 53
12.4. Main Net (2/4) Section (Main P.C.B. (1/4)) Schematic
Diagram (M) 54
12.5. Main Net (3/4) Section (Main P.C.B. (1/4)) Schematic
Diagram (M) 55
12.6. Main Net (4/4) Section (Main P.C.B. (1/4)) Schematic
Diagram (M) 56
12.7. AV I/O (1/4) Section (Main P.C.B. (2/4)) Schematic
Diagram (AV) 58
12.8. AV I/O (2/4) Section (Main P.C.B. (2/4)) Schematic
Diagram (AV) 59
12.9. AV I/O (3/4) Section (Main P.C.B. (2/4)) Schematic
Diagram (AV) 60
12.10. AV I/O (4/4) Section (Main P.C.B. (2/4)) Schematic
Diagram (AV) 61
12.11. Tuner Section (Main P.C.B. (3/4)) Schematic Diagram
(TU) 63
12.12. Timer (1/4) Section (Main P.C.B. (4/4)) Schematic
Diagram (T) 64
12.13. Timer (2/4) Section (Main P.C.B. (4/4)) Schematic
Diagram (T) 65
12.14. Timer (3/4) Section (Main P.C.B. (4/4)) Schematic
Diagram (T) 66
12.15. Timer (4/4) Section (Main P.C.B. (4/4)) Schematic
Diagram (T) 67
12.16. HDMI Schematic Diagram 68
12.17. DV Jack Schematic Diagram 69
12.18. Front Jack Schematic Diagram 69
12.19. Front (L) Schematic Diagram 69
12.20. ATAPI Schematic Diagram 69
13 Printed Circuit Board 71
13.1. Power P.C.B. and DV Jack P.C.B. 71
13.2. Main P.C.B. 72
13.3. HDMI P.C.B. 77
13.4. Front Jack P.C.B. and Front (L) P.C.B. 78
13.5. ATAPI P.C.B. 79
14 Appendix for Schematic Diagram 81
14.1. Voltage and Waveform Chart 81
15 Parts and Exploded Views 88
15.1. Exploded Views 88
15.2. Replacement Parts List 90
CONTENTS
Page Page
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DMR-EH57GN
