TC-610P Service Manual
82
2
）
Adjustment in the mode (Note: be sure to connect antenna or load before adjustment)
）
Item
Condition
Test
Adjustment
Specifications
/ Remarks
Test
Instrument
Test
point
Part
Method
Tx Power
H
ig
h
Rotate the
Channel
Selector Knob
to CH4
and press
PTT
to enable
this function at low
frequency.
Communication
Test Set /
Ammeter
Antenna
Connector
SK1
SK2
Press
SK1/SK2
to
adjust the output
power, and rotate
the
Channel
Selector Knob
to
save it.
4.5-5W
I
≤
1.7A
Short press
PTT
to switch
among frequencies (refer
to the table of Adjustment
Items).
Tx Power
L
o
w
Rotate the
Channel
Selector Knob
to CH2
and press
PTT
to enable
this function at the low
frequency.
Communication
Test Set /
Ammeter
Antenna
Connector
SK1
SK2
Press
SK1/SK2
to
adjust the output
power, and rotate
the
Channel
Selector Knob
to
save it.
2W±0.3W
I
≤
1.2A
Short press
PTT
to switch
among frequencies (refer
to the table of Adjustment
Items).
CDCSS
Deviation
Rotate the
Channel
Selector Knob
to CH5 and
press
PTT
to enable this
function. Select the wide
band and low frequency.
Communication
Test Set BPF:
<20Hz~300Hz
Antenna
VR
260
Adjust VR260 with
ceramic tuning tool
and make the
waveform similar to
square waveform.
Short press
PTT
to switch
among frequencies; and
long press
PTT
to switch
between wide/narrow
bands.
Modulation
Sensitivity
W
id
e
Rotate the
Channel
Selector Knob
to
CH1, CH2 and CH3,
press
PTT
to
transmit.
Communication
Test Set
BPF:
0.3 KHz-3KHz
AF: 1KHz
Antenna
Earpiece
Jack
Adjust output signal of
the communication test
set, until frequency
deviation gets 3.0KHz.
8
-
18mV
N
a
rr
o
w
Rotate the
Channel
Selector Knob
to
CH4, CH5 and CH6,
press
PTT
to
transmit.
Adjust output signal of
the communication test
set, until frequency
deviation gets 1.5KHz.
8
-
18mV
