SAMSUNG S1000 Troubleshooting

6. Troubleshooting

6-1 Amplifier

6-1-1 Power Malfunction

Check voltage of XIC3

No

Check waveform of XIC1

pins 16,18,25,27



Check waveform of WIC41

pins 8,11,12



Yes

Replace XIC03





Malfunction of Audio Output



Yes

Yes

No

No

Check waveform of XIC2L,2R

pins 2,7

Check Amp operation

Yes

Yes

No

Check XIC1 soldering condition

Replace WIC41
Check WIC41 soldering condtion

Replace XIC2L,2R
Check XIC2L,2R soldering condition

Samsung Electronics 6-1

6-1-2 FLT Malfunction

Connector inserted

correctly?

No

Check voltage : AC 5V

at FRONT-PCB FLT?

No

Check Main-PCB Front PCB
connection and the voltage of
RWA3, pins2,3(AC 5V)

Check voltage at FIC1

pin 54(-33V)

No

Check the voltage of RZD5(-30V)





Replace FIC1(LC75710)



Yes

Yes

Yes

Reinsert the connector

6-2 Samsung Electronics

Troubleshooting

6-1-3 No Output

No

Check the AQ1L,1R

Base B+ ?

Is relay opened ?

Is mute selected ?

Yes



Replace relay

Check if the output line is
short.

Check the RWA4 TR(B1566)

out : -12V

No

Replace TR(B1566)

No

Main PCB RC1,RC2

(STK4181V) pins 12,14

B+,B- circuits

No

Check the Fuse

Check the Power-Trans

Yes

No

Replace Fuse

Main PCB µ-com pins 82,83

Check the "H"

Yes

Replace µ-com

Yes

Restore sound with remocon

No

Check for TR short
Replace it.

Yes

No

Yes

Yes

Samsung Electronics 6-3

Troubleshooting