Control Assy - Samsung SP43T7HPS Service Manual

5-3 No Raster
Abnormal
Check the input voltage
of POWER CORD
Normal
Abnormal
Check the Standby
voltage of IC841
Normal
Abnormal
Check MICOM VCC
Normal Abnormal
Check the operating status
of MICOM POWER PORT
Normal Abnormal
Check QS802
Normal Abnormal
Check IC831S,PC801S
Normal Abnormal
Check the voltage/waveform
of CN801,CN802,CN502A
Normal
Abnormal
Check the input
of SCAN MDL
Normal Abnormal
Check the output from
SCAN MDL CN03
Samsung Electronics
Check the operating
status of remote control
and POWER S/W
Check the input voltage
Check ICS801,PC811S
Check the circuits related to
MICOM VCC input
Check the circuits related
to IR / MICOM
Check the circuits related
to QS802
Check the circuits related
to IC831S,PC801S
Check the circuits related to
CN801,CN802,CN502A
Check the circuits related to
SCAN MDL input
Normal
Check the remote
control and

CONTROL ASSY

Normal Abnormal
Check the input
voltage/waveform of
CRT-PCB CN501,CN401
Normal Abnormal
Check the input/output
circuits of IC501,
IC531,IC561
Normal Abnormal
Check the voltage
of CRT,SCREEN
Troubleshooting
Check the circuits
inside SCAN MDL
Check Connector wire
Check the circuits
related to
the input/output
of IC501,IC531,IC561
5-3