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Kenwood TM-451A User Manual

Page 104

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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

97

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