Toshiba 32AV500U Service Manual page 13

Does
the secondary
Yes
12 volt source appear
at pin 8 of P201 when
the on/off button is
pressed?
Suspect a
problem with the
signal circuits
located on the Main
module.
Does
a 4.3 volt on off
Yes
signal appear at pin
13 of P201 when the
on/off button is
pressed?
No
Suspect a problem with
the power supply module.
Dead Set No
Sound/ No
Picture
Is
5 VDC present at
Yes
pin 10 of P201 on the
power supply module
when AC is
applied?
No
Is the
ACD (AC Detect)
No
level less than .07V
at pin 14 of P201
when AC is
applied?
12
No
Suspect a problem with
the standby 5 volt supply
on the power supply supply
module.
Suspect a problem
Yes
with the SYSCON
circuit located on the
Main module.