Samsung HC-R4241W Service Manual page 34

3-3 Repairing No Sound
Confirm that CN601 is inserted
Check IC601 Output
Terminal Pins 2 and 4
Check IC601 Input Terminal Pin 3
Check IC601 Input Terminal Pin 5
Check IC601 Input Terminal Pins 7 and 11
Check IC602 Input Terminals
Abnormal
Check IC605 Input Terminals
Samsung Electronics
Normal
Abnormal
Normal
Normal
Abnormal
Abnormal
Insert the CN601 Connector
Check the Speakers
Abnormal
Abnormal
Normal
Normal
Troubleshooting
Check FD802S of the SUB Board
Check the Sound Mute Circuit
Check IC601
Check IC602
3-5