Operating Controls - Kenwood TM-631A Instruction Manual

4. OPERATION
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Main Tuning control
This control is used to select the desired transmit/
receive frequency, Memory Channel, Frequency Step,
Tone Frequency, and Scan direction of the MAIN fre-
quency band.
CALL key
The CALL key selects the CALL channel of the MAIN
frequency band. The frequency may be reset to any
desired frequency. (See CALL Channel P26.)
VFO key
This key is used to return to VFO operation after oper-
ating in the MR (Memory Recall), or CALL Channel
mode. The MAIN tuning control will increase frequen-
cy in the selected step size, the tone frequency, and/or
the frequency step.
Press and hold the key for longer than 1 second to in-
itiate VFO scan. Press the key after scan has been in-
itiated will cause scan to stop.
MR key
This key is used to select Memory Recall operation af-
ter operating in the VFO or CALL channel mode. The
MAIN Tuning control may be used to select the desired
2)
@ Microphone audio—_
@ PTT (STBY) switch
memory channel in this mode.
Press and hold the key for longer than 1 second to in-
itiate MR scan. Press the key after scan has been in-
itiated will cause scan to stop.
VOL control/Power switch
The volume control and power switch are combined.
Rotating the control clockwise will turn ON the tran-
sceiver.
Advancing the control further clockwise will increase
the total volume of two bands.
The BALANCE control proportions the volume among
the two bands.
MAIN SQL control
This control is used to select the desired SQL threshold
level of the MAIN frequency band.
Microphone connector
Plug the standard or optional microphone into this jack.
GND (PTT)
@ GND (Microphone)
RX Audio output
(Approx. 100 mV/10 kQ)
@ up
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