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
Trouble shooting chart
Yes
NO
NO
Check the I2S signals (U1500 Pin
11,22,23,24,25,26)
Yes
Check the PCB Layout
NO
Yes
Check the PWM signals (U1500
Pin38,39,40,41,42,43,44,45,46,47,
48,49)
Replace U1500
NO
Replace the speaker
Check the AMP IC Output
(U1600,U1601,U1700 )
NO
Replace U1600,U1601,U1700
5- 2
Содержание HTD5540/12
Страница 42: ...7 11 7 11 Front Control Board print layout ...
Страница 43: ...7 12 7 12 Power Board print layout ...
Страница 44: ...7 13 7 13 Main Board print layout bottom side ...
Страница 45: ...7 14 7 14 Main Board print layout top side ...
Страница 48: ...SPHE8203R Rx MAIN IC BLOCK DIAGRAM 9 1 ...
Страница 49: ...SPHE8203R Rx SIGNAL DESCRIPTION Pin Configuration 9 2 ...
Страница 53: ...10 1 10 1 Exploded View for HTD5540 12 93 ...
Страница 54: ...Exploded View for HTD5510 94 HTD5540 94 HTD5570 94 10 2 10 2 ...
Страница 55: ...Exploded View for HTD5510 98 HTD5540 98 HTD5570 98 10 3 10 3 ...
Страница 56: ...1 1 1 Revision List Version 1 0 γ Initial Release for HTD5540 12 98 94 93 ...