19
TROUBLESHOOTING HINTS
3. No Raster
Is 12V
plugged in pin 5
of CN2(power
board)?
No
No
Yes
Yes
Is the output of
inverter correct?
Check the output of
12V line(power board).
Replace the inverter.
Replace a LCD panal.
low
high
Check the
output of Q1 or
pin 15 of U14.
Trouble in Q1 or
pin 15 of -com.
No Raster
Yes
Summary of Contents for CML-710M
Page 1: ...LCD COLOR MONITOR Model CML 710M http www lucoms com 2004 Service Manual DAEWOO LUCOMS CO LTD...
Page 25: ...24 BLOCK DIAGRAM...
Page 26: ...25 SCHEMATIC DIAGRAM L710M...
Page 27: ...26 SCHEMATIC DIAGRAM...
Page 28: ...SCHEMATIC DIAGRAM 27...
Page 29: ...SCHEMATIC DIAGRAM 28...
Page 30: ...SCHEMATIC DIAGRAM 29...
Page 31: ...SCHEMATIC DIAGRAM 30...
Page 32: ...31 PCB PATTERN...
Page 33: ...32 PCB PATTERN...
Page 34: ...33 PCB PATTERN...
Page 35: ...34 PCB PATTERN...
Page 43: ......
