Panasonic TH-42PX20U Service Update Information page 49

Suggestions:
Check the Scan
pulse waveform
at TPSC1 of the
SC-Board. (Use
TPSS1 of the
SS-Board to
trigger the
oscilloscope.)
Proceed to check
the power
sources at
connector S S11,
and SS12.
Verify that the clock
and serial data lines
from the D-board are present at connector SS23.
49
Figure 30