Kenwood TK-2202 Service Manual page 24

TK-2202/2206
Adjustment points TX-RX unit (X57-687)
Component side view
RSSI
BATT+
PCTV
5R 5C
5M
5T
VR1
MICI
MICO
VR1 : Frequency adjustment
BPF : Band-pass wave form test point
CV : Lock voltage adjustment terminal
Foil Side View
S401
PTT
J301
EXT. SP/EXT. MIC
TC1 : Transmit lock voltage adjustment
TC2 : Receive lock voltage adjustment
CV : Lock voltage adjustment terminal
Fig. 1 Adjustment points
24
ADJUSTMENT
BPF
B
SB
TX-RX UNIT
Component side view
SP– SP+
CV
S403 S402
SW1
SW2
TX-RX UNIT
Foil side view
TC1
TC2
CV
MICI RXAFO
MICO
Frequency and signalling
The set has been adjusted for the frequencies shown in
the following table. When required. re-adjust them following
the adjustment procedure to obtain the frequencies you want
CN13
ANT
in actual operation.
Frequency (MHz)
Channel No.
1
2
3
4
5
6
7~16
Signalling
Signalling No.
1
2
3
4
5
6
7
8
9
RXAFI
• 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
Center
Low
High
Low'
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
155.050MHz 155.000MHz
136.050MHz 136.000MHz
173.950MHz 174.000MHz
145.550MHz 145.600MHz
164.550MHz 164.600MHz
TX
TX