Kenwood TK-2160 Service Manual page 26

TK-2160
Adjustment points TX-RX unit (X57-672)
Component side view
TXD
PTTO
SP–
PTTI
(RXD)
SP+
DET
X57-672 A/2
Com ponent side
BATT+
ANT
VR1 : Frequency adjustment
RSSI : Band-pass w ave form test point
Foil Side View
ALT2
A4
A3
A4
A1
LSDFO
M IC O
RA O
A6
A4
ALT
GND
SB
RA I
CV
M IC I
TC1
TC1 : Transmit lock voltage adjustment
TC2 : Receive lock voltage adjustment
CV : Lock voltage adjustment terminal.
Fig. 1 Adjustment points
26
ADJUSTM ENT
SP M UTE
RSSI
VR1
CV
RESET
BPF
X57-672 A/2
Foil side
TC2
ANT
■ Frequency and signalling
The set has been adjusted for the frequencies show n in
the follow ing table. When required. re-adjust them follow ing
the adjustment procedure to obtain the frequencies you w ant
in actual operation.
Frequency (M Hz) K, M type
Channel No. RX Frequency
1 155.05000
2 136.05000
3 173.95000
4 155.00000
5 155.20000
6 155.40000
7~16
Signalling
Signalling No. RX
1 None
2 None
3 QT 67.0Hz
4 QT 151.4Hz
5 QT 210.7Hz
6 QT 254.1Hz
7 DQT D023N
8 DQT D754I
9 DTM F 159D
10 None
2 Tone:
11 A:321.7Hz
B:928.1Hz
12 None
13 None
14 M SK Code
• Preparations for tuning the transceiver
Before attempting to tune the transceiver, connect the unit
to a suitable pow er supply.
W henever the transm itter is tuned, the unit m ust be
connected to a suitable dummy load (i.e. pow er meter).
The speaker output connector must be terminated w ith a
8W 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 RX
Center 155.050M Hz
Low 136.050M Hz
High 173.950M Hz
Low ' 145.550M Hz
High' 164.550M Hz
155.000M Hz
155.200M Hz
155.400M Hz
TX Frequency
155.10000
136.10000
173.90000
155.00000
155.20000
155.40000
TX
None
100Hz Square Wave
QT 67.0Hz
QT 151.4Hz
QT 210.7Hz
QT 254.1Hz
DQT D023N
DQT D754I
DTM F 159D
DTM F tone 9
2 Tone:
A:321.7Hz
B:928.1Hz
Single Tone:1000Hz
M SK
M SK Code
K,M
TX
155.000M Hz
136.000M Hz
174.000M Hz
145.500M Hz
164.500M Hz
155.000M Hz
155.200M Hz
155.400M Hz