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DP122NU
LG DP122NU Manuals
Manuals and User Guides for LG DP122NU. We have
1
LG DP122NU manual available for free PDF download: Service Manual
LG DP122NU Service Manual (49 pages)
Brand:
LG
| Category:
DVD Player
| Size: 6.77 MB
Table of Contents
Section 1 Summary
3
Table of Contents
3
Product Safety Servicing Guidelines for DVD Products
4
Servicing Precautions
5
General Servicing Precautions
5
Insulation Checking Prodedure
5
Electrostatically Sensitive (Es) Devices
5
The Process of Usb Download
6
Specifications
9
Section 3 Electrical
14
Booting When You Turn the Unit on
15
One Point Repair Guide
15
Video Output When You Turn the Unit on
20
Audio Output When You Turn the Unit on
21
Electrical Troubleshooting Guide
22
Smps Troubleshooting Flow
22
Power Check Flow
24
System Operation Flow
25
System Test Flow
26
Details and Waveforms on System Test and Debugging
32
System 27Mhz Clock, Reset, Flash R/W Signal
32
Lens Control Related Signal (no Disc Condition)
34
Sled Control Related Signal (no Disc Condition)
34
Laser Power Control Related Signal
35
Focus on Waveform
36
Spindle Control Waveform
36
Tracking Control Related Signal (System Checking)
37
Sphe8202Rq-D Audio Coaxial Output (Spdif)
38
Sphe8202Rq-D Video Output Waveform
38
Audio Output from Sphe8202Rq-D/128
39
Wiring Diagram
40
Circuit Diagrams
42
Smps Circuit Diagram
42
Power Supply, M_Driver, Opu_Connector Circuit Diagram
43
Sphe8202Rq, Flash, Sdram Circuit Diagram
44
Audio Amplify, Audio Output, Mute, Video Buffer, Video Output Circuit Diagram
45
Front Led Display, Key Control Circuit Diagram
46
Circuit Voltage Chart
47
Mpeg & Sdram
47
Transistors
47
Main P.C.board
48
Printed Circuit Board Diagrams
48
Smps P.C.board
49
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