Radio Shack DX-398 ユーザーズマニュアル

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TROUBLESHOOTING
We do not expect you to have any problems with your receiver, but if you have a
problem, the information in this chart might help. If the problem persists, take the
receiver to your local RadioShack store for assistance.
SYMPTOM
POSSIBLE CAUSE
SUGGESTION
Weak or intermittent 
sound.
The internal batteries 
are weak.
Check the batteries and 
replace or recharge 
them as necessary.
The antenna must be 
adjusted.
Adjust the telescoping 
antenna or connect an 
external antenna.
The signal is blocked by 
metal or concrete.
Move the receiver near a 
window when you use it 
inside a vehicle or metal-
frame building.
The frequency is not 
tuned properly.
Fine-tune the frequen-
cy. See “Tuning Sta-
tions” on Page 18. 
Scanning stops on a fre-
quency that has an un-
clear transmission.
The frequency is not 
tuned properly.
Fine-tune the frequen-
cy. See “Tuning Sta-
tions” on Page 18. 
The frequency is one of 
the receiver’s birdie fre-
quencies.
Tune another frequency.
Frequency does not 
change when you turn 
ROTARY TUNING
.
FAST/SLOW/STOP
 is set 
to 
STOP
.
Set 
FAST/SLOW/STOP
 to 
FAST 
or 
SLOW
.
ROTARY TUNING
 and 
front panel buttons do 
not respond.
The keypad is locked 
(
 appears on the 
display).
Press .
M