Panasonic TH-42PX50U - Page 70

Step 1
Is the
waveform at
TPSS1 ok?
See Ref. *4 on
page 66.
No
Yes
Is the 15V at
TP_15V on the
SS Board OK?
No
Yes
Check the
P board.
Check the
DG or D
board.
Check the
D board.
No
Is the
SUSTAIN CONTROL
PULSE from the D Board to
the SS Board OK? (Go to
<Check Point>
on page 66.)
Yes
Check the
SS board.
No
Go to
Step 5
Check the
SU or SC
board.
Yes
No
No lower half
Check the
SD or SC
board.
Is the
picture
problem in the
upper half of
the screen?
Is the
picture
problem in the
upper or lower
half of the
screen?
Yes, upper
or lower half
Step 4
65