E-1
TROUBLESHOOTING GUIDE
(Television division)
(In case that there isn't a normal tension for time to do
standby CD810 every terminal)
( 1 ) that a power supply doesn't
enter
Is there output on the
secondary of T501
dimensions or not ?
NO
YES
Voltage of C507 is
it normal ?
NO
YES
YES
NO
Investigate R501 and F501.
Whether there is output
for IC501 3rd pin or not ?
Investigate IC506 and IC501.
Investigate T501.
NO
NO
NO
NO
NO
YES
YES
YES
YES
Whether is POWER
FAIL normal ?
Investigate T502.
AT6V is it normal ?
Investigate IC505.
NO
YES
Is there 100V in the
collector of Q503 ?
Investigate F502 and D510.
Investigate IC504 and ICP503.
Investigate IC503 and ICP503.
AT5.6V is it normal ?
Investigate IC502.
P.CON 9V is it normal ?
AT 12V is it normal ?
