Kenwood TK-2202L Service Manual page 17

TK-2202L
Adjustment points
BATT+
VR1
VR1 : Frequency adjustment
BPF : Band-pass wave form test point
CV : Lock voltage adjustment terminal
S1
PTT
J301
EXT. SP/EXT. MIC
TC1 : Transmit lock voltage adjustment
TC2 : Receive lock voltage adjustment
CV : Lock voltage adjustment terminal
16
ADJUSTMENT
BPF
TX-RX UNIT
Component side view
CV
S2 S3
SW1 SW2
TX-RX UNIT
Foil side view
TC1
TC2
CV
■ Frequency and signaling
The transceiver has been adjusted for the frequencies
shown in the following table. When required, readjust them
CN13
ANT
following the adjustment procedure to obtain the frequencies
you want in actual operation.
Frequency (MHz)
Channel No.
1
2
3
4
5
6
7~16
Signaling
Signaling No.
1
2
3
4
5
6
7
8
9
• Preparations for tuning the transceiver
Before attempting to tune the transceiver, connect the unit
to a suitable power supply.
Whenever the transmitter is tuned, the unit must be
connected to a suitable dummy load (i.e. power meter).
The speaker output connector must be terminated with a
8Ω dummy load and connected to an AC voltmeter and an
audio distortion meter or a SINAD measurement meter at all
times during tuning.
Adjustment Frequency
TEST CH
Low
Low'
Center
High'
High
RX Frequency TX Frequency
155.050 155.100
136.050 136.100
173.950 173.900
155.000 155.000
155.200 155.200
155.400 155.400
RX
None None
None 100Hz Square Wave
QT 67.0Hz QT 67.0Hz
QT 151.4Hz QT 151.4Hz
QT 250.3Hz QT 250.3Hz
DQT D023N DQT D023N
DQT D754I DQT D754I
DTMF 159D DTMF 159D
None DTMF tone 9
RX
136.050MHz 136.000MHz
145.550MHz 145.600MHz
155.050MHz 155.100MHz
164.550MHz 164.600MHz
173.950MHz 173.900MHz
TX
TX