Kenwood TK-7160 Service Manual page 30

TK-7160
Test Frequency
Channel
1
2
3
4
5
6
Test Signaling
RX
1 None
2 None
3 QT : 67.0Hz
4 QT : 151.4Hz
5 QT : 210.7Hz
6 QT : 254.1Hz
7 DQT : 023N
8 DQT : 754I
9 DTMF : 159D
10 None
11 FleetSync 1200 bps
: 100~1000
12 FleetSync 2400 bps
: 100~1000
13 None
14 2-Tone
A : 304.7Hz, B : 3106.0Hz
15 Signle Tone : 979.9Hz
PCB Section
Item
1. Setting 1) Power supply voltage
DC Power supply terminal : 13.6V
2. VCO lock 1) CH : TX high
voltage*
2) CH : RX high
3) CH : TX low
4) CH : RX low
3. IF coil 1) CH : RX center (Wide)
2) SSG output : –53dBm (501µV)
Mod : 1kHz, Dev : 3kHz
30
ADJUSTMENT
RX (MHz) TX (MHz)
155.05 155.10
136.05 136.10
173.95 173.90
155.00 155.10
155.20 155.20
155.40 155.40
TX
None
100Hz Square
QT : 67.0Hz
QT : 151.4Hz
QT : 210.7Hz
QT : 254.1Hz
DQT : 023N
DQT : 754I
DTMF : 159D
DTMF Code 9
FleetSync 1200 bps
: 100~1000
FleetSync 2400 bps
: 100~1000
Single Tone : 1000Hz
2-Tone
A : 304.7Hz, B : 3106.0Hz
Signle Tone : 979.9Hz
Condition
Test equipment
Digital voltmeter
SSG
Digital voltmeter
3 or 5 Reference Level Adjustment Frequency
Tuning point
Low
Low'
Center
High'
High
Ref –20 dBm
Peak
Log
10
dB/
W1 S2
S3 FC
AA
Center 160.1 MHz
#Res BW 30 kHz
Measurement
Terminal Parts
CV TC442
TC441
AFV L321
RX (MHz)
136.05
145.55
155.05
164.55
173.95
Atten 0 dB
136.1MHz 155.1MHz
174.0MHz
–40.5dBm –40.58dBm
–42.81dBm
Sweep 277.8 ms (401 pts)
VBW 30 kHz
Fig. 1
Adjustment
Specifications/
Method
± 0.1V
5.5V
± 0.1V
5.5V
Check 0.7V or more
3.25~3.35V (DC)
TX (MHz)
136.10
145.60
155.10
164.60
173.90
Span 100 MHz
Remarks