Philips HTD3510/98 - Page 23

5-4 Trouble shooting Chart
No audio output
refer to <NO +34V output>
Check 34v voltage on
AMP board is normal
Check the signals of I2S
(U20 Pin
34,35,36,42,43,44
)
Replace main board
Yes
No audio output
Yes
NO
NO
Check the I2S signals
(U481 Pin 7,8,9,10,11,20)
Yes
Check the PCB Layout
NO
Yes
Check the PWM signals
(U481
Replace U481
NO
Replace the speaker
Check the AMP IC Output
(
U483 U484
)
NO
Replace U483,U484
Yes
Yes