DOWNLOAD LG 42LG80FR (CHASSIS:LP81G) Service Manual ↓ Size: 4.34 MB | Pages: 35 in PDF or view online for FREE

Model
42LG80FR (CHASSIS:LP81G)
Pages
35
Size
4.34 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
42lg80fr-chassis-lp81g.pdf
Date
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- 17 -
7. Unusual display from component 1 mode
Yes
Is video
input of the Com1
Jack normal? (Check
R8011/12/13)
Check the input source.
Change IC801.
No
8. Unusual display from component 2 model
Yes
Is video
input of the Com2
Jack normal? (Check
R8030/32/33)
Check the input source.
Change IC801.
No
9. Unusual display from RGB model
Yes
Is video
input of the Com2
Jack normal? (Check
R8035/37/39)
Check the input source.
Change IC801.
No
- 18 -
Set on speaker
in menu.
Download the EDID data..
Check the signal after
IC600 refer to circuit
diagram.
No
No
No
Check the Tuner In/Out.
No
No
Check the Speaker
cable.
No
Replace IC600.
No
Replace IC801.
No
Yes
Yes
All input(mode)
is no sound.
Only HDMI is
no sound.
Is the speaker
cable normal?
Is the speaker
on  it menu?
Yes
Only AV/COM2/PC
input is no sound.
Is the output of
IC600 normal?
Yes
Yes
Only RF is no sound.
Yes
Is IC801 operated
normality?
Yes
Replace IC601.
Replace Main B/D.
No
Is IC601/IC603
operated normality?
Yes
10. No Sound
(1) Symptom
1) LED is green
2) Screen display but sound is not output.
(2) Check process
11. Moving Speaker is not operating (42LG80 only)
(1) Symptom
1) Sound & Video is normal.
2) When Power on/off, Speaker is not moving.
- 19 -
open
stop
stop
stop close
 Speaker status
P1000
BM06B-GHS
For 42LG80
For 42LG80
P1000
BM05B-GHS
- 20 -
(2) Check process
Change sliding
Option(Open -> Auto)
Insert cable to each wafers.
Change Right Motor Assy.
No
No
No
Change Main Board.
Yes
Is sliding mode
“Auto”?
Are wafers
connected properly?
(P1001, P1000)
Yes
Check voltage
below  when Power on.
P1001(#4) -> Low(about 0V)?
P1001(#5) -> High
(about 8.5V)?
Remove P1001/P1001
cable & P1001(#4,#5)
: 0V, 8.5V?
Yes
Yes
No
Change Right Motor Assy.
Check & Clean Mechanical
obstacle & Particle.
No
Change Main Board.
Check voltage
below  when Power on.
P1001(#6) -> Low(about 0V)?
P1001(#5) -> High
(about 8.5V)?
Remove P1001/P1001
cable & P1001(#6,#5)
: 0V, 8.5V?
Yes
Yes
No
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