Troubleshooting
5-20
Samsung Electronics
5-25 Audio Signal Missing After Recording (MONO MODE)
Check
ICM301 pin 75:
5V
Yes
Yes
Yes
No
Check PC 5V Line
No
No
Replace ICM301
Check
ICM301 pin7 REC
audio signal
Check
IC702 #14
MONO out
No
Check IC702
Yes
Place VCR in REC Mode
Replace CNM302
Yes
Check
CNM302 , Pin5
No
Check A/C
Head Assembly
Yes
Check
FLM501 Pin5 REC
bias signal
Check CM370, RM357, RM358
CM371, CM373, CM372,
QM312, RM359
Summary of Contents for TI21B4DF4X
Page 98: ...Block Diagrams 8 2 Samsung Electronics 8 2 C17A PCB Layout ...
Page 99: ...9 Wiring Diagram 9 1 C17A Wiring Diagram Wiring Diagram Samsung Electronics 9 1 ...
Page 101: ...Schematic Diagrams 10 2 Samsung Electronics 10 2 MAIN2 VOC TUNER BOX ...
Page 103: ...Schematic Diagrams 10 4 Samsung Electronics 10 4 MAIN4 SWITCHING BLOCK ...
Page 104: ...Schematic Diagrams 10 5 Samsung Electronics 10 5 MAIN5 OPTION PAL HIFI BLOCK ...
Page 105: ...Schematic Diagrams 10 6 Samsung Electronics 10 6 MAIN6 OPTION VCR SECAM BLOCK ...
Page 106: ...Schematic Diagrams 10 7 Samsung Electronics 10 7 POWER FBT ...
Page 107: ...Schematic Diagrams 10 8 Samsung Electronics 10 8 CRT ...
Page 108: ...Schematic Diagrams 10 9 Samsung Electronics 10 9 FRONT A V MASTER SW FRONT A V MASTER SW ...