Kenwood TM-451A - Manual (Page 104)

Problem Symptom Probable Cause Corrective Action
Page
Ref.
No sound comes from the
speaker even though the VOL
control is turned clockwise.
1 The squelch is closed.
2 DTSS is ON ("DTSS" is visible);
DTSS codes that you are receiving
are different from the code set in
your transceiver.
3 Page is ON ("PAG" is visible); Page
codes that you are receiving are
different from those set in your
transceiver.
4 If the TSU-8 OTOSS option is
installed, OTOSS is ON ("OTOSS"
is visible); OTOSS tones that you
are receiving are different from the
OTOSS tone frequency set in your
transceiver.
5 Tone Alert is ON ("Bell" icon is
visible).
1 Reset the squelch threshold.
2 To monitor activity, press [DTSS] to
turn OFF DTSS or press microphone
[PF]. To contact stations using
DTSS, review the "DTSS" section.
3 To monitor activity, press
[DTSS] (1 s) to turn OFF Page or
press microphone [PF]. To contact
stations using Page, review the
"Page" section.
4 To monitor activity, press
[TONE/CTCSS] to turn OFF OTOSS
or press microphone [PF]. To
contact stations, review the
"OTOSS" section.
5 Press [F], [SHIFT] to turn OFF Tone
Alert.
28
75,70
79
74,70
86
Most buttons/keys and the
Tuning control do not function. 1 The Lock function is ON.
2 If microphone buttons/keys are not
working. Microphone Lock is ON.
1 Press [F], [LOW] to turn Lock OFF.
2 Slide the Lock switch on the rear of
the microphone to unlock the
microphone.________
62
62
Continued
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