Sanyo PDP-42XS1 - No Picture on S-Terminal; NO Picture of TV Channel; Mainframe

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4.2 no picture on S-terminal
4.3 NO picture of TV channel
4.3.1 mainframe
Check if the C228 and C229
have the signal input.
Check if the pin 2 o
f
N
708 has in
p
ut si
g
nal.
Check periphery circuit of N201,
crystal and power supply
Check the periphery circuit
of N708 and
p
ower su
pp
l
y
Check the S-terminal
socket to N708 channel
Yes
N
o
Yes
N
o
Check if the C227 have the
signal input.
Check if the pin 2 of TUNER101
in TV board has in
p
ut si
g
nal.
Check periphery circuit of N201,
crystal and power supply
Check the periphery circui
t
of TUNER101 and powe
r
supply bus wire
Check the TUNER101 to
N
708 circuit.
Yes
N
o
Yes
N
o