Sanyo VIZZON HT30746 - Troubleshooting Flow Charts; No Power Troubleshooting

— 48 —
TROUBLESHOOTING FLOW CHARTS
NO POWER
No
Yes
No
Yes
Yes
Yes
(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 '5VAL' line)
Is
the voltage to all lines
supplied?
No
Is
the voltage
to "5VAL" line
supplied?
Is
fuse (F601)
open?
Is
resistor (R601)
open?
Check:
Varistor (VA601), Diode Bridge (D601),
Posistor (PS601), IC (IC601/602),
Transistor (Q402)
Check Around:
CPU (IC801), IC (IC802/803),
Crystal (X8219), Relay (RL601),
Diode (D1611), Transistor (Q1611)
Check:
IC (IC1611), Diode (D1612/1613/ 1614/ 1615),
Transformer (T681), RC Pre-AMP (A1901)
Check:
Diode Bridge (D601), IC (IC601/602),
Transistor (Q402)