Troubleshooting
No audio on line input mode or
recorded disc playback
Check select signal of No
pin26, 27, 28, 29 in IC802check pin13, 14 (input select)of IC802
(jack board)
Yes
Check pin19 of IC802,pin18No
Check SMPS board
of MCON2,and pin16 of MCON2
in jack board
Yes
Check all the vcc of No
AIC9,AIC81,AIC82Replace main PCB
(main board)
Yes
No
Check digital clock of
pin10,11,12,15
Yes
Check passive components
around jack-pin and IC802
6-28 |