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Kenwood TM-221A Service Manual page 36

144mhz fm transceiver
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M-221A/E/ES
ADJUSTMENT
Measurement
Adjustment
Microprocessor operation check
[item | __ Condition
Operation check
1, Reset
1) Turn the Power switch
{Display
74, 5,001
ON holding the VFO/M
_
and M.IN switches
The! &1) indicator and the Mem-
down.
ory channel number display tight
2) Release the VFO/M and
for approx. 5 sec, after release
M.IN switches.
the switches,
1) Press the M.IN switch.
— |/M- Tindicator lights.
[area |
2) Press the M.IN switch,
|Display
py ry} tif} Pos,
tion
then press the REV
switch within 5 sec.
[item | ___— Condition
Operation check
Simplex memory channels are; MO~9, MA, b.
Determine the desired FREQ., SHIFT, CTCSS, TONE
FREQ.
then follow the procedure below.
1) Press the M.IN switch.
The memory channel number
display lights.
2) Setect the desired
memory channel using
the Tuning control or
the Microphone UP/
DOWN switch.
This selection should be
completed within 5 sec.
after the M.IN switch is
Turn the Tuning control and
the UP/DOWN switches to in-
crease or decrease the figures as
shown below.
(T,w)
pressed.
20-25
<5 10-125
l
3) Press the M.IN switch
Memory entry is completed.
15
CCW
cw
15
within 5 sec. after the
1
223
memory channel selec-
125-10
5< 25+ 20
tion is completed.
(T,W)
fj}
3) Press any switch except
[Receive FREQ. lights.
the LOW and the Power
|(to return to the normal FREQ.)
switches
to return to
1) Select the desired FREQ.
using the Tuning control
or the Microphone UP/
:
DOWN switch.
the normal receive
(as described in Item
FREQ.
4-1.)
. FREQ.
1) Press the MHz switch.
The kHz digits goes off.
step
2) Turn the Tuning control
{Rotating the Tuning control
selec-
switch to*CW or CCW.
switch changes the FREQ. in
tion
1MHz step.
(MHz)
3) Press any switch
except
|The kHz digits lights.
the LOW and the Power
switches
to return to
the normal receive
FREQ.
38

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