Symptom
Treble control has no effect.
Auto tune inoperative. (UP/DOWN)
Cause and Remedy
A) Variable resistor TREBLE defective.
Replace.
A) Poor contact in Up/Down key.
Repair or replace.
B) Defective 1C301.
Replace.
C) Defective tuner circuit components.
Replace.
D) In case of FM only, improper adjustment of FM
front-end.
Readjust.
Manual tune inoperative. (UP/DOWN)
(AM or FM)
Memory setting inoperative.
FL inoperative.
i
a
ee
ee
A) Poor contact in Up/Down key.
Replace.
B) Defective IC301.
Replace.
A) Poor contact in memory keys 1-10.
Replace.
B) Defective 1C301.
Replace the defective component.
A) FL defective.
Replace.
B) Defective IC301.
Replace
C) Defective D113 and D114.
Replace.
|
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uno
Noisy volume control.
Remote Control Unit inoperative.
A) Defective volume.
Replace.
A) Weak battery.
Replace.
B) Defective.
Replace.
C) Defective Remote sensor.
Replace.
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