DOWNLOAD LG 22LF15R (CHASSIS:LP81K) Service Manual ↓ Size: 1.64 MB | Pages: 29 in PDF or view online for FREE

Model
22LF15R (CHASSIS:LP81K)
Pages
29
Size
1.64 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
22lf15r-chassis-lp81k.pdf
Date
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LG 22LF15R (CHASSIS:LP81K) Service Manual ▷ View online

1. No Power (LED indicator off) : [A] Process
- 13 -
TROUBLE SHOOTING
Check 15V or
ST_5V of Power B/D.
Fail
Pass
Check short of Main B/D
or Change Power B/D.
Check Output of
IC1000, IC1006.
Fail
Check short of
IC100, Q307.
Pass
Pass
Fail
Re-soldering or Change
defect part of IC100, Q307.
Change IC1000, IC1006.
Pass
Change IC1102, IC1103.
Check Output of
IC1002.
Fail
Check short of
Q307, TU600, IC500.
Fail
Re-soldering or Change
defect part of Q307,
TU600, IC500.
Pass
Pass
Change IC1003.
Change LED Assy.
Check Output of
IC1003.
Pass
Check LED Assy.
Pass
Check P307 Connector.
Fail
Check short of
IC100, IC400.
Fail
Fail
Re-soldering or Change
defect part of IC100, IC400.
- 14 -
2. No RASTER : [B] Process
Check LED status
On Display Unit.
Fail
Pass
Repeat A PROCESS.
Check Panel Link
Cable or Module.
Pass
Fail
Change Panel Link Cable or Module.
Check Inverter
Connector or
inverter.
Fail
Change Inverter Connector or Inverter.
Pass
Change IC100
Check Output of
L300.
Pass
Check the LVDS
Output of IC100.
Pass
Check Input source Cable and Jack.
Fail
Change Module.
Fail
Fail
Change L300.
- 15 -
3. No Raster on Component Signal
Repeat [A, B]
process.
Pass
Check the input/
output of R801.
Fail
Check the JK800.
Pass
Re-soldering or change the
defect part. Check the X100.
Check
the input/output
of R109.
Pass
Check the
input/output of IC100.
Pass
Check input source cable and jack.
Fail
Fail
Re-soldering or Change the defect part.
5. No Raster on AV(Scart in
Video, S-Video) Signal
6. No Raster on TV(RF) Signal
- 16 -
4. No Raster on HDMI Signal
Repeat [A, B]
process.
Pass
Check the input/
output of IC100.
Fail
Re-soldering or change the defect part. 
Check the X100.
Pass
Check input source cable and jack.
Check input source cable and jack.
Repeat [A, B]
process.
Fail
Check the output
of TU600.
Pass
Pass
Fail
Check 5V of TU600.
Re-Soldering or change
the defect part.
Check
the input/output
of R193, R114.
Fail
Change R193, R114.
Pass
Check input/output
of IC100.
Pass
Fail
Re-soldering of Change defect part.
Check the X100.
Pass
Pass
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