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28LB45 series
LG 28LB45 series Service Manual
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- 17 -
LGE Internal Use Only
Copyright ©
LG Electronics. Inc.
All rights reserved.
Only for training and service purposes
4. No V
ideo - HDMI
Check input signal format
Is it supported?
Check HDMI Cable for Damage or
Open Connector
.
Replace Main Scaler
. (IC101)
Check JK801 for proper connection
or Damage.
Check I2C Signal
(JK801)
Replace Connector
.
Re Download EDID Data.
No
No
Y
es
Y
es
Y
es
Y
es
16
18
Table of Contents
Table of Contents
2
Leakage Current Cold Check(Antenna Cold Check)
3
Important Safety Notice
3
General Guidance
3
Safety Precautions
3
General Servicing Precautions
4
Electrostatically Sensitive (ES) Devices
4
General Soldering Guidelines
4
Servicing Precautions
4
IC Remove/Replacement
5
Power Output, Transistor Device
5
Diode Removal/Replacement
5
Fuse and Conventional Resistor Removal/Replacement
5
Test Method
6
Requirement for Test
6
Application Range
6
Specification
6
External Input Support Format
8
Rgb/Hdmi (Pc)
8
Hdmi (Dtv)
8
Component
9
Designation
10
Main PCB Check Process
10
Boot File Download
10
Adjustment Instruction
10
CI+ Key Writing Process(Device CN)
11
Tool Option Selection
11
Function Check
11
EDID Process
11
Total Assembly Line Process
12
Tool Option & ADC Check
12
Model Name & Serial Number Download
12
Model Name & Serial Number D/L
12
White Balance Adjustment
13
DPM Operation Check
13
Check Display and Sound
13
PCMCIA CARD Check
13
No Power
15
Trouble Shooting
15
No Screen on
16
No Video - Digital TV
16
No Video - HDMI
17
Block Diagram
18
Exploded View
19
19V to 12V (for HD Panel)
20
Netcast4.0_Eu_Tuner_Block
27
Scart / Component&Compsit
28
Scart Amp
28
Audio Amp(Ti)
29
Headphone Block
29
Other manuals for LG 28LB45 series
Owner's Manual
66 pages
4
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LG 28LB45 series Specifications
General
Display Type
LED
Screen Size
28 inches
Refresh Rate
60 Hz
HDMI Ports
2
USB Ports
1
Aspect Ratio
16:9
Resolution
1366 x 768
Weight
8.6 lbs
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