Samsung S1000 Service Manual page 19

6-1-3 No Output
Main PCB RC1,RC2
(STK4181V) pins 12,14
B+,B- circuits
Yes
Check the AQ1L,1R
Base B+ ?
No
Is relay opened ?
No
Is mute selected ?
Check the RWA4 TR(B1566)
out : -12V
Yes
Main PCB µ-com pins 82,83
Check the "H"
Samsung Electronics
No
Yes
Yes
Yes
No
No
Yes
No
Check the Fuse
Yes
Check the Power-Trans
Check for TR short
Replace it.
Replace relay
Restore sound with remocon
Replace TR(B1566)
Replace µ-com
Check if the output line is
short.
Troubleshooting
No
Replace Fuse
6-3