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Function Trouble
repair external RF
1、Repair the power net
connecting to this pin
Tuner & IF circuit
—— 1. ATV
equipment
2、change UT1
Repair I2C net
Repair the
No channel be find
NG
Check the RF cable for RF
signal
Check the
NG
Pin11/Pin18/Pin24 of UT1
for 3.3V.
OK
NG
Check the RT12 & RT13
for I2C data
OK
NG
Check the CT34 & CT69
for IF signal
OK
Check the Software
OK
OK
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