29
5. High frequency board overhaul flow
5.1 with picture but no sound
Check if other channel is normal
Check the circuit of the all
levels sound channel
Check if the sound channel
of N400 is normal
Check if the earphone is normal
Check the connection cable
No
Yes
R2S15900 and peripheral
circuit and earphone socket
have problem
Normal
Yes
No
No
Check if the connection
cable and power cable is
normal
The speaker
has problem
Yes
Yes
No
Check the audio power
amplifier and peripheral.
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 ...
Page 33: ......
Page 34: ...C o n f i d e n t i a l C o n f i d e n t i a l ...
Page 35: ...C o n f i d e n t i a l C o n f i d e n t i a l ...
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Page 41: ...C o n f i d e n t i a l C o n f i d e n t i a l ...
Page 42: ...C o n f i d e n t i a l C o n f i d e n t i a l ...
