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6-1-4 Tape Not Playing
Voltage at
JIC1(KA22291) are normal
(Refer to Schematic
Diagram)
Yes
Noise occurs at
pin3,22 or pin4,21 with volume
control at mid position
Yes
Connection and soldering of head
wire normal
6-1-5 Audio Output Problem
Speaker connections are normal
Voltages to
all pins of AIC1(LA4620)
are normal (Refer to Schematic
Diagram)
Voltage at base of AQ601,
AQ651(C945) is less than
0.6V
Pattern & Speaker Jack normal
Samsung Electronics
No
No
Yes
Yes
Yes
Check power supply circuitry
Noise occurs at pins1,24
Yes
Replace JIC1 (KA22291)
No
Check power supply section
No
Check Muting circuitry
Troubleshooting
No
Check function selector
section
6-3
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