Kenwood TK-2200 Service Manual page 24

TK-2200
Antenna
(optional)
LED indicator
Adjustment points
TX-RX unit (X57-688)
Component side view
PCTV
BATT+
5M
5C
VR1
VR1 : Frequency adjustment
BPF : Band-pass wave form test point
CV : VCO lock voltage adjustment terminal
Foil Side View
S401 S403
PTT SW1
J301
EXT. SP/EXT. MIC
TC1 : Transmit VCO lock voltage adjustment
TC2 : Receive VCO lock voltage adjustment
CV : VCO lock voltage adjustment terminal
Fig. 1 Adjustment points
■ 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
in actual operation.
24
ADJUSTMENT
Channel selector
Power switch/
Volume control
BPF
B
SB
TX-RX unit
Component side view
SP+
CV SP–
S402
SW2
TX-RX unit
Foil side view
TC1
TC2
CV
PTT (Push to
Talk) switch
Lock key
Scan key
Frequency (MHz)
Channel No.
1
2
3
4
CN13
ANT
5
6
7
8
Signalling
Signalling 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
Center
Low
High
Low'
High'
Speaker/
microphone
jacks
RX Frequency TX Frequency
162.050 162.100
150.050 150.100
173.950 173.900
162.000 162.000
162.200 162.200
162.400 162.400
156.550 156.600
168.550 168.600
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
162.050MHz 162.100MHz
150.050MHz 150.100MHz
173.950MHz 173.900MHz
156.550MHz 156.600MHz
168.550MHz 168.600MHz
TX
TX