Panasonic VIERA 50 Series - Trouble Shooting Introduction; Introduction of Power Trouble Shooting; Basic Idea of how to find the defective block; Adjustment after P.C.B. exchange

Introduction
Introduction of Power Trouble Shooting
1 . These are following 2 states of Power LED in Power Trouble
A. No Lit (Relay doesn’t work)
B. Blinking several times
2, Basic
Idea
of how
to
find
the defective
block
A. Check if the voltage comes up
Normally, when Power ON, shut down occurs immediately.
So, check is
necessary
before
shutdown.
B. Check if power comes up, when disconnecting the board which seems to be defective.
If power
comes up
(*)
when disconnecting
a board,
the board is defective.
(*)
“Power comes up” means “no shutdown”.
3.
Adjustment after P.C.B. exchange
When exchange the
following
boards, voltage adjustment
is necessary.
Please refer to Service Manual.
„ ^ „
——
P.C.B VoltageVoltage
P board VsusVsus
SC board Vad
SS board Ve
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