NO POWER
to "5V_STBY" line
the voltage to all lines
Check 'Power Failure' Circuit.
Power Failure Line
CPU (IC801) 32pin
CPU (IC801) 36pin
TROUBLESHOOTING FLOW CHARTS
Is
fuse (F601)
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.
Q803-Q804
Yes
Check: Power Unit
No
Check: Power Unit
No:
All 0V
(except '5V_STBY' line)
Check: around
CPU (IC801), IC (IC802),
Crystal (X801), Power Unit
Diode
Detected Voltage
D1602/D1604
D1651
D1640
D1631
D1621
D1683
Diode
Detected Voltage
D1661
— 39 —
D3.3V
AUDIO_POW
9V
5V
TU33V
12V_ANALOG
LVDS_POW