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TK-80
KAT-2 (Internal Automatic Antenna Tuner)
Adjustment
Measurement
Item
Condition
Testequipment
1. Automatic
antenna
tuner check
1) Display: 2MHz
Mode: CW
Dummy load: 20Ω
Set silver-point of TC1 to 45°
Oscilloscope
Dummy
load
Unit
Adjustment
Terminal
Unit
AT
Parts
TC1
Method
Check
Specifications/
Remarks
SW meter decreases,
then AT is stop.
Silver-point
Press [AT TUNE] key
2) Dummy load: 150Ω
Press [AT TUNE] key
3) Dummy load: 50Ω
Press [AT TUNE] key
Terminal Function
CN No. Pin No. Pin Name
CN3
Function
1
POD1
VC101 position detection signal
2
POD2
VC102 position detection signal
3
VREF
AT reference voltage (5V)
4
ATG
AT GND
5
PR22
Motor rotation direction control 4
6
PR21
7
CN No. Pin No. Pin Name
W1
Function
1
AT1
AT signal 1
2
GND
GND
1
AT2
AT signal 2
2
GND
GND
1
24AT
AT band bata 22.00000~26.99999MHz
Motor rotation direction control 3
2
21AT
AT band bata 19.00000~21.99999MHz
PR12
Motor rotation direction control 2
3
18AT
AT band bata 14.50000~18.99999MHz
8
PR11
Motor rotation direction control 1
4
28AT
AT band bata 27.00000~29.99999MHz
9
ATA
AUTO/THRU switch
5
14AT
AT band bata 8.00000~14.49999MHz
10
APRE
Preset control select
6
4AT
AT band bata 2.40000~4.49999MHz
11
SPED
Motor speed control
7
7AT
AT band bata 4.50000~7.99999MHz
12
ATI
Preset AT install. “L”: Install
8
GND
GND
13
14S
14V (switched)
14
5A
5V
15
DGND
Digital GND
16
DGND
Digital GND
W2
W103
97