Is
5 VDC present
at pins 10, 11, and 12 of
P802 on the power supply
module when AC is
applied?
Does
a 4.3 volt on off
signal appear at pin
13 of P802 when the
on/off button is
pressed?
Yes
Suspect a problem with
the standby 5 volt supply
on the power supply
module.
No
Is the
Power Good
(AC Detect) level
less than .07V at pin
14 of P802
when AC is
applied?
Yes
No
Suspect a problem with
the power supply module.
Does
the secondary
12 volt source appear
at pin 8 of P802 when
the on/off button is
pressed?
No
No
Suspect a problem
with the SYSCON
circuit located on the
Main module.
Yes
Yes
Suspect a
problem with the
Main module.
Dead Set No
Sound/ No
Picture
10
Summary of Contents for 40RV52U
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