Service manual
Table Of Contents
- VIZIO L42HDTV10A,GV42L_HDTV Service Manual
- 01-FEATURES
- 02-SPECIFITION
- 03-ON SCREEN DISPLAY
- 04-FACTORY PRESET TIMINGS
- 05-PIN ASSIGNMENT
- 06-MAIN BOARD I/O CONNECTIONS
- 07-THEORY OF CIRCUIT OPERATION
- 08-WAVEFORMS
- 09-TROUBLE SHOOTING
- 10-BLOCK DIAGRAM
- 11-SPARE PATRS LIST
- 12-1COMPLETE PARTS LIST_FOR L42 HDTV10A
- 12-2COMPLETE PARTS LIST_FOR GV42L HDTV
- MAIN BOARD CIRCUIT DIAGRAM_FOR L42 HDTV10A
- MIAN BOARD CIRCUIT DIAGRAM_FOR GV42L HDTV
- MAIN BOARD PCB LAYOUT_FOR L42HDTV10A(LG/AUO)
- MAIN BOARD PCB LAYOUT_FOR GV42L HDTV_LG
- ASSEMBLY EXPLOSION DRAWING_FOR L42HDTV10A_AUO
- ASSEMBLY EXPLOSION DRAWING_FOR L42HDTV10A_LG
- ASSEMBLY EXPLOSION DRAWING_FOR GV42L HDTV_LG
CONFIDENTIAL – DO NOT COPY
Page 9-2
File No. SG-0198
Yes
N0
N0
N0
Yes
Yes
Yes
N0
(TV, COMPOSITE VIDEO1, 2, S-VIDEO) IS NOT DISPLAY CORRECTLY
Start
Input signal good?
1.Check video
2.Check DVD player
U11 input correct?
1.Check P2&P12 signal
2.Check signal between P2 and
U11 (IF AV1/AV2 mode)
3.Check Tuner &U11 (IF TV mode)
4.Check P12 (IF S-Video)
5.Check U11 POWER +3.3V
6.Check Y1 is OK?
LVDS output correct?
1.Check signal between U20 and
U9
1.Chcak J5 Connect is good?
2.Is panel working ok?
END
U11 output correct?
1.Check LVDS LINE
2.Check U11 clock (27MHz)
3.Check U11 power