SERVICE MANUAL
PAGE:
16
TROUBLE SHOOTING
Check
IC271,272,821
In/Out Voltage
Check
AL201~206&
AL208~210
IC201 Video Data out
OK?
YES
Check
AL301~306
IC301 Video Data out
OK?
DC Reg
In/Out Power Line
Check & Replacement
IC201
Each and all
v ideo Input Check
Pin #78,80,82=
Component
96=RF CVBS
98=A/V
100,102=Y/C
YES
NO
Replacement
IC101
YES
Check IC1151
Pin #1,2,12~15 (Sync)
& VCC
NO
Replace IC1151
Check VCC Line
& Replacement
NO
NO
IC301
Each and all
Input Signals Check
Pin #54,65,70 =
RGB input
32,33,35,36,38,39,
41,42 = DVI Input
YES
Summary of Contents for LC3050
Page 24: ...SERVICE MANUAL PAGE 22 PCB LAYOUT CONTROL PCB 1 TOP COMP PATTERN 2 BOTTOM COMP PATTERN ...
Page 25: ...SERVICE MANUAL PAGE 23 PCB LAYOUT Main PCB TOP COMP ...
Page 26: ...SERVICE MANUAL PAGE 24 PCB LAYOUT Main PCB TOP PATTEN ...
Page 27: ...SERVICE MANUAL PAGE 25 PCB LAYOUT Main PCB BOTTOM COMP ...
Page 28: ...SERVICE MANUAL PAGE 26 PCB LAYOUT Main PCB BOTTOM PATTEN ...