Home
LG
Portable DVD Player
DP450P
LG DP450P Service Manual
4
of 1
of 1 rating
45 pages
Give review
Manual
Specs
To Next Page
To Next Page
To Previous Page
To Previous Page
Loading...
3-15
MAIN ELECTRICAL TROUBLESHOOTING GUIDE
3. RF/SERVO CIRCUIT
Replace IC(U201)
Laser off
Check the related circuit on
MT1389 RFL signal.
Check DMSO
related circuit on MT1389.
Check the RFL connection
between J401 and MT1389.
Check the cable connection
between spindle and main
PCBA.
YES
YES
YES
YES
NO
NO
NO
NO
NO
YES
YES
Disc ID
is correct?
Does
spindle rotate.
A
Put Disc in.
Proper RFL signal
on MT1389?
Proper
DMSO signal on
MT1389
21
23
Table of Contents
Section 1 Summary
3
Default Chapter
3
Table of Contents
3
Product Safety Servicing Guidelines for Video Products
4
Servicing Precautions
5
General Servicing Precautions
5
Insulation Checking Prodedure
5
Electrostatically Sensitive (Es) Devices
5
Specifications
6
Liquid Crystal Display
6
Exploded Views
8
Exploded Views
9
Cabinet and Main Frame Section
9
Packing Accessory Section
10
Section 3 Electrical
12
Lcd Part
13
Lcd Electrical Troubleshooting Guide
13
Block Diagram
14
Circuit Diagram
15
Printed Circuit Board Diagram
16
Main Part
18
Main Electrical Troubleshooting Guide
18
Power (DC-DC Converter Circuit)
18
Mpeg Circuit
21
Rf/Servo Circuit
22
Charging Circuit
25
Details and Waveforms on System Test and Debugging
26
SYSTEM 27Mhz CLOCK
26
Sdram Clock
26
Mt1389 Video Output Waveform
27
Audio Output from Audio Dac
27
Block Diagrams
28
Overall Block Diagram
28
Power Block Diagram
29
Servo Block Diagram
30
System Block Diagram
31
A/V Block Diagram
32
Circuit Diagrams
34
Mpeg Circuit Diagram
34
Memory Circuit Diagram
35
Opu & Motor Circuit Diagram
36
Av Circuit Diagram
37
Charge Circuit Diagram
38
Lcd I/F Circuit Diagram
39
Key Circuit Diagram
40
Circuit Voltage Chart
41
Printed Circuit Board Diagrams
43
Main P.C.board
43
Key P.C.board
45
Other manuals for LG DP450P
Manual
30 pages
4
Based on 1 rating
Ask a question
Give review
Questions and Answers:
Need help?
Do you have a question about the LG DP450P and is the answer not in the manual?
Ask a question
LG DP450P Specifications
General
Brand
LG
Model
DP450P
Category
Portable DVD Player
Language
English
Related product manuals
LG DP450
15 pages
LG DP450G
30 pages
LG DP471B
51 pages
LG DP650
20 pages
LG DP351
14 pages
LG DP271
43 pages
LG DP372D
53 pages
LG DP571T
24 pages
LG DP691D
28 pages
LG DP650W
20 pages
LG DP-9821
45 pages
LG DP271-P
43 pages
To Next PageTo Next PageTo Previous PageTo Previous Page
Loading...
Need help?
General
