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5. Service Modes, Error Codes and Fault Finding
5.No earthphone sound
Check
U6301 pin33=3.3V
Yes
Check U6303
pin6= 5V
pin5,7=HPL/HPR
Yes
Replace Side AV Board
6.No remote function
Tty another
remote control
Yes
Check IR receiver
7.LED and function
key poor
Check circuit around
control board and cable
between control board
and scaler board
Eliminate short and open
No
situation
No
Replace U6303
Replace one good
No
remote control
TPS1.1L LA
15
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