30
5.2 A certain channel without picture of TV/AV YPBPR
Check if the VGA and
HDMI has same problem
Check the connection cable
and signal source is normal
Check if the supply power
(5v, 9v and 12v) is normal
Check the main board
Check if the X600 socket is
normal
Check the YPBPR input
circuit
No
Yes
Normal
YPBPR channel
AV/TV/S channel
Check if the X600 socket is
normal
No
Check the supply
power
Check the main board
No
No
Yes
Yes
Check the all levels
circuit of S terminal
channel
S terminal channel
AV/TV channel
Check if the input pin
of N400 has signal
No
Check the
M52797
and peripheral circuit
Yes
Summary of Contents for LC-42T17
Page 1: ...LCD TELEVISION LC 42T17 LC 47T17 ...
Page 19: ...17 Internal Block Diagram ...
Page 21: ...19 8 R2SI5900SP Internal Block Diagram ...
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