Sanyo DP46848 - Troubleshooting - No Power

— 40 —
TROUBLESHOOTING FLOW CHARTS
No
Ye s
Ye s
Ye s
No
(or the voltage to some lines is not supplied.)
After a few seconds, the set will be switched off.
Check 'Power Failure' Circuit.
No:
All 0V
(except '5V_STBY' line)
Is
the voltage to all lines
supplied?
Is
the voltage
to "5V_STBY" line
supplied?
Is
fuse open?
Check: arround
CPU (IC800), IC (IC801),
Crystal (X801), Power Unit
Check: Power Unit
Check: Power Unit
Diode Detected Voltage
Diode Detected Voltage
D1671 9V
D6051/D6052 A3.3V
Power Failure Line
CPU (IC800) 32pin
D1620/D1621 D3.3V
D1663 5V
D1677 AUDIO_POW
Q810, Q811
LVDS_POW
D1683
CPU (IC800) 23pin
Trouble Shooting Video US1H(42/46)
NO POWER