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 (Except EB)
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 cover
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.
SD/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. Backend P.C.B.
35
9.12. 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)
65
12.13. Timer (2/4) Section (Main P.C.B. (4/4)) Schematic
Diagram (T)
66
12.14. Timer (3/4) Section (Main P.C.B. (4/4)) Schematic
Diagram (T)
67
12.15. Timer (4/4) Section (Main P.C.B. (4/4)) Schematic
Diagram (T)
68
12.16. HDMI Schematic Diagram
69
12.17. DV Jack/SD Card Schematic Diagram
70
12.18. Front Jack Schematic Diagram
70
12.19. Front (L) Schematic Diagram
70
12.20. ATAPI Schematic Diagram
71
13 Printed Circuit Board
73
13.1. Power P.C.B.
73
13.2. Main P.C.B.
74
13.3. HDMI P.C.B.
79
13.4. Front Jack P.C.B. and Front (L) P.C.B.
80
13.5. DV Jack and SD Card P.C.B.
81
13.6. ATAPI P.C.B.
82
14 Appendix for Schematic Diagram
83
14.1. Voltage and Waveform Chart
83
15 Parts and Exploded Views
90
15.1. Exploded Views
90
15.2. Replacement Parts List
92
CONTENTS
Page
Page
2
DMR-EX77EG / DMR-EX77EC / DMR-EX77EC1 / DMR-EX77EB / DMR-EX87EG / DMR-EX87EC / DMR-EX87EC1 / DMR-EX87EB
