-14-
Hardware Trouble shooting
2) No Picture - Analog & Component mode
- In case of ATV, VIDEO, COMPONENT mode
START
Yes
Yes
Yes
Yes
Yes
No
No
No
No
Check the SMPS and input voltage
IC401 problem.
Replace the Main PCB
1) TV mode: Check the path
TU101(CE102) -> IC202(CC214, RC230) -> IC401(RC226, RC229, QC202, CC218, RC233, CC220, CC221)
2) Component mode: Check the path
Comp1: JK208(LC208-210) -> IC204(CC241, CC243, CC245) -> IC204(RC251, RC252, RC253)
-> IC204(RC247 ~ 249) -> IC401(RC237 ~ 239)
Comp2: JK208(LC213-215) -> IC204(CC242, CC244, CC246) -> IC204(RC251, RC252, RC253)
-> IC204(RC247 ~ 249) -> IC401(RC237 ~ 239)
3) Composite & S-Video
Composite1: JK201(LC201, CC201, RC201, CC202) -> IC202(CC210) -> IC401(RC226, RC229, QC202,
CC218, RC233, CC220, CC221)
Composite2: P201(LC204, CC207, CC208, RC205) -> IC202(CC212) -> IC401(RC226, RC229, QC202,
CC218, RC233, CC220, CC221)
S-Video: JK202(LC203, CC205, LC202, CC203, CC206, RC204, CC204, RC203) -> IC202(CC211, CE201,
RC216) -> IC401(RC226, RC229, QC202, CC218, RC233, CC220, CC221)
Check
The input power of
IC401 is correct
Check the LVDS signal
output of IC401 is correct
Check the LVDS signal
output of IC401 is correct
Is the input signal IC401
nomal?
IC401 problem.
Replace the Main PCB
Perhaps Connector and
Cable problem.
Replace connector or cable.
Summary of Contents for LA32L1B1LM
Page 11: ...5 Block Diagram 11 1 Block Diagram of Digital Board...
Page 12: ...12 Block Diagram 2 Power Tree...
Page 18: ...Hardware Trouble shooting 18 Pr signal RC239...
Page 22: ...Hardware Trouble shooting 22 B signal RC237 H Sync RC207...
Page 24: ...Hardware Trouble shooting 24 5 No Sound...
Page 26: ...7 Schematic 26...
Page 27: ...Schematic 27...
Page 28: ...Schematic 28...
Page 29: ...Schematic 29...
Page 30: ...Schematic 30...
Page 31: ...Schematic 31...
Page 32: ...Schematic 32...
Page 33: ...Schematic 33...
Page 34: ...Schematic 34...
Page 35: ...Schematic 35...
Page 36: ...Schematic 36...
Page 37: ...Schematic 37...
Page 38: ...Schematic 38...
Page 39: ...Schematic 39...
Page 40: ...Schematic 40...
Page 41: ...Schematic 41...
Page 52: ...10 Mechanical Exploded View 52 1 LA32L1B1LM...
Page 53: ...Mechanical Exploded View 53 2 LA37L1B1LM...
Page 54: ...Mechanical Exploded View 54 3 LA42L1B1LM LA42L1B1LF...