TV can’t search any
channel/no picture
6
、
、
、
、
Function Trouble
(
(
(
(
TV video
)
)
)
)
Confirm if the RF
cable do have signal
N
Y
Check if T2-pin8 for 5V
Y
N
Check if T2-pin6,7 has
data for I
2
C
N
Y
Check if T2-pin9&10have data
N
Y
Check external
RF
signal source
Check the
power
supply
circuit
Check the circuit
from T2-pin9&10 to
U6 and the power
supply for U6
Check if T2-pin2 for variational
voltage within 1.8V~4.3V
Check the circuit
in this part
N
Y
Change T2
Check the I
2
C circuit
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