Kenwood TK-3160 Service Manual page 37

TK-3160
Adjustment points TX-RX unit (X57-673)
Component side view
TXD
PTTO
SP–
PTTI
(RXD)
SP+
DET
X57-673 A/2
Component side
元件面
BATT+
ANT
VR1 : Frequency adjustment
RSSI : Band-pass wave form test point
Foil Side View
ALT2
A4
A3
A2
A1
LSDFO
MIC O
RA O
A6
A4
ALT
GND
SB
RA I CV
MIC I
TC1
TC1 : Transmit lock voltage adjustment
TC2 : Receive lock voltage adjustment
CV : 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.
Frequency (MHz) C type
Channel No. RX Frequency
1 460.050
2 440.050
3 479.950
4 460.000
5 460.200
6 460.400
7~16
Frequency (MHz) C2 type
Channel No. RX Frequency
1 415.050
2 400.050
3 429.950
4 415.000
5 415.200
6 415.400
7~16
36
ADJUSTMENT /
SP MUTE
RSSI
VR1
CV
RESET
BPF
X57-673 A/2
Foil side
箔面
TC2
ANT
TX Frequency
460.100
440.100
479.900
460.000
460.200
460.400
TX Frequency
415.100
400.100
429.900
415.000
415.200
415.400
调整
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 DTMF 159D
10 None
2 Tone:
11 A:321.7Hz
B:928.1Hz
12 None
13 None
14 MSK Code
• 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 (C type)
TEST CH RX
Center 460.050MHz
Low 440.050MHz
High 479.950MHz
Low' 450.050MHz
High' 470.050MHz
460.000MHz
460.200MHz
460.400MHz
Adjustment Frequency (C2 type)
TEST CH RX
Center 415.050MHz
Low 400.050MHz
High 429.950MHz
Low' 407.550MHz
High' 422.550MHz
415.000MHz
415.200MHz
415.400MHz
TX
None
100Hz Square Wave
QT 67.0Hz
QT 151.4Hz
QT 210.7Hz
QT 254.1Hz
DQT D023N
DQT D754I
DTMF 159D
DTMF tone 9
2 Tone:
A:321.7Hz
B:928.1Hz
Single Tone:1000Hz
MSK
MSK Code
C
TX
460.100MHz
440.100MHz
479.900MHz
450.100MHz
470.100MHz
460.000MHz
460.200MHz
460.400MHz
C2
TX
415.100MHz
400.100MHz
429.900MHz
407.600MHz
422.600MHz
415.000MHz
415.200MHz
415.400MHz