Samsung S1000 Service Manual page 22

Troubleshooting
6-2-3 No Output
6-6
Check the B-(RWA4 : B1566)
OUT : -12V
Yes
Check the RIC1(BA3950A)
normal ?
No
Is relay opened ?
No
Is mute selected ?
No
Main PCB µ-com pins 82,83
Check for "H"
No
Replace TR(B1566)
No
Replace RIC1(BA3950A)
Yes
Replace relay
Yes
Restore sound with remocon
Yes
Replace µ-com
No
Check if the output line is
shorted.
Samsung Electronics