DOWNLOAD LG 20HIZ12 (CHASSIS:ML-041F) Service Manual ↓ Size: 2.88 MB | Pages: 35 in PDF or view online for FREE

Model
20HIZ12 (CHASSIS:ML-041F)
Pages
35
Size
2.88 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
20hiz12-chassis-ml-041f.pdf
Date
PREV: LG 20HIZ11 (CHASSIS:ML-041F) Service Manual

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- 17 -
No Raster on Component signal
Check JA1200 or 
RCA CABLE
Check the signal of
L1200, L1202, L1203
Repeat
[A] Process 
Check the input/
output of IC1
Check the input/
output of IC901
Check input source cable and jack 
Fail
Re-soldering or 
Change the defect part,
Check X11
Fail
Re-soldering or 
Change the defect part,
Check X900
Fail
Pass
Pass
Pass
Check the input/output
of IC800, IC851
Re-soldering or 
Change the defect part
Fail
Pass
- 18 -
No Raster on AV Signal
(Video, S-Video)
No Raster on TV(RF) signal
Change L1209, L1210,
L1212
Check the signal of 
L1209, L1210, L1212
Repeat
[A] Process 
Check the output of 
TU1000
Check the input/output 
of IC1 
Check the input/output 
of IC800, IC851
Check input source cable and  jack 
Fail
Fail
Fail
Fail
Re-soldering or
Change the defect part
Chek X11
Fail
Re-soldering or
Change the defect part
Check 5V, 33V of TU1000
Re-soldering or 
Change the defect part
Pass
Pass
Pass
Check the input/output 
of IC901
Fail
Re-soldering or 
Change the defect part
Check X900
Pass
Pass
- 19 -
No Sound
Check the speaker wire
Change source input
Check the 
input source
Fail
Pass
Re-soldering or 
Change the defect part
Check X11
Check the input/output 
of IC1
Fail
Pass
Re-soldering or 
Change the defect part
Check the input/output 
of IC100,IC101 
Fail
Pass
Change speaker
Check the speaker
Fail
Pass
BLOCK DIAGRAM
- 20 -
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