SERVICE MANUAL
PAGE:
12
TROUBLE SHOOTING
No Raster?
(Real Black?)
Check P441
Connector & Cable
OK?
YES
Check
P441 Pin #3~6
Panel VCC
Check P952,951
Pin #10~15 : VCC
Pin #4 : On/Off
OK?
Replace Inv erter
Cable or module
NO
YES
Check appropriate
circuit
(Power suply
& u-Com control )
YES
Replace LCD module
NO
Check or Replace
I 803
YES
NO
C
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 ...