Troubleshooting Flow Charts - Sanyo DP32640 Service Manual

TROUBLESHOOTING FLOW CHARTS

NO POWER
to "5V_STBY" line
the voltage to all lines
Check 'Power Failure' Circuit.
Power Failure Line
MAIN IC (IC5500) D9pin
Is Yes
fuse open?
No
Is
the voltage
supplied?
Yes
Is
supplied?
Yes
(or the voltage to some lines is not supplied.)
After a few seconds, the set will be switched off.
Diod
D1613
D1668
D6700
Check: Power Unit
No
Check: Power Unit
All 0V
No:
(except '5V_STBY' line)
Check: arround
MAIN IC (IC5500),
Crystal (X5500), Power Unit
Detected Voltage
– 28 –
5V
AUDIO_POW
5V