16
TROUBLESHOOTING HINTS
2. Trouble in Power on
Trouble in power on.
Refer to No video
or No raster.
Power LED.
ON
OFF
Trouble in adapter.
Check output
voltage of adapter.
YES
Is the 5VS line
normal?
NO
Trouble in SQ8 and its
ambient circuit.
NO
YES
YES
Is the pulse of pin9
of the IC1?
Trouble in Q7 or its
ambient circuit.
Trouble in IC2 or its
ambient circuit.
NO
Summary of Contents for L500B
Page 1: ...ServiceManual TFT LCD MONITOR Model L500B DAEWOO ELECTRONICS CO LTD OVERSEAS SERVICE DEPT...
Page 24: ...25 SCHEMATIC DIAGRAM u MAIN88281A...
Page 25: ...26 SCHEMATIC DIAGRAM u TOP CIRCUIT...
Page 26: ...27 SCHEMATIC DIAGRAM u BUFFER...
Page 27: ...28 SCHEMATIC DIAGRAM u POWER DC DC...
Page 28: ...29 SCHEMATIC DIAGRAM u MEMORY...
Page 29: ...30 SCHEMATIC DIAGRAM u MICOM...
Page 30: ...31 SCHEMATIC DIAGRAM u RGB SYNC...
Page 31: ...32 SCHEMATIC DIAGRAM u TDA8752A...
