DOWNLOAD LG 37LG60UR (CHASSIS:LP81A) Service Manual ↓ Size: 2.98 MB | Pages: 27 in PDF or view online for FREE

Model
37LG60UR (CHASSIS:LP81A)
Pages
27
Size
2.98 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
37lg60ur-chassis-lp81a.pdf
Date
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TROUBLE SHOOTING
- 17 -
C
2008
1) Symptom
1) It is not discharged minutely from the module.
2) Light does not come into the front LED.
2) Check process
1. No power
No
Yes
Is plug in 
Power cord inserted?
After all cables connect is 
removed to PSU.
The AC voltage marking is 
authorized on manual.
When ST-By 5V is not operated.
replace PSU.
Plug in power cord
No
Yes
Is the Line Filter 
and PSU connected?
Connect a cable to SC100
No
Yes
Is the fuse of 
PSU normal? 
F101
Replace the fuse.
No
Yes
Is it connected that
PSU and P1100 in
Main Board
Connect a cable P1100
C
2008
- 18 -
1) Symptom
      1) No OSD and image occur at screen.
      2) It maintains the condition where the front LED is green
.
2) Check process
2. No Raster
No
No
No
No
No
Yes
Yes
Yes
CN700(PDP/LCD)
Replace the VSC.
Does mimute 
discharge a Module?
Is the Link cable
normal?
Is the IC801’s
output normal?
Check the LCD Module
Reconnect the 
Panel line cable
(HD:P403, FHD:402)
Is the inverter
/VaVs on?
Is output the normality
Low/High voltage
except Stand-by 5V?
Replace the 
Power board
C
2008
- 19 -
1) Check process
3. Unusual display from RF mode.
No
Yes
Yes
No
No
Is Video output of the
Tuner normal?
(Check TU500_Pin13)
Is the
Input voltage normal?
(Check Pin3)
Block A
Is the I2C communication normal?
(Check Pin9, Pin10)
No
Yes
Is the LVDS
cable connected well?
Change the IC(IC801)
Check the power
Cable inserts well
Check the Tuner
C
2008
- 20 -
4. Unusual display from rear AV mode
.
5. Unusual display from Side AV mode.
6. Unusual display from Side S-Video mode.
7. Unusual display from component 1 mode.
8. Unusual display from component 2 mode.
9. Unusual display from RGB mode.
No
Yes
Is video input of the
A/V Jack normal?
(Check R8044)
Same as Block A
Same as Block A
Same as Block A
Check the input source.
Check the input source.
Check the input source.
Check the input source.
Change IC801
Change IC801
Change IC801
Is Video input of the
Comp1 jack normal?
(Check R8011,8012,8013)
Is Video input of the
Comp2 jack normal?
(Check R8030,8032,8033)
Is Video input of the
Comp2 jack normal?
(Check R8035,8037,8039)
Check the input source.
Check the input source.
Is video input of the
Side A/V Jack normal?
(Check R8043)
Is video input of the
S-Video Jack normal?
(Check R8041,8042)
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
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