TK-3230
3
ADJUSTMENT
Common Section
Item
Condition
Measurement
Adjustment
Specifi cations / Remarks
Test-
equipment
Unit
Terminal
Unit
Parts
Method
1. Setting
1) Set battery jig
Battery terminal: 3.8V
2. VCO lock
voltage
(Test mode)
1) CH: TX high
PTT: ON
Digital
voltmeter
TX-RX
LV
TX-RX
TC1
1.85V
±0.05V
2) CH: RX high
Check
2.4V or less
3) CH: RX low
0.4V or more
4) CH: TX low
PTT: ON
Transmitter Section
Item
Condition
Measurement
Adjustment
Specifi cations / Remarks
Test-
equipment
Unit
Terminal
Unit
Parts
Method
1. Frequency
adjustment
1) PC tune
CH: TX center
PTT: ON
f. counter
ANT
Jig cable
SP/MIC
jack
PC
key
Adjust to the center
frequency.
Within ±100Hz
2. Frequency
shift
6.25kHz
1) PC tune
CH: TX 460.00625MHz
PTT: ON
Adjust to the desired
frequency.
Within ±100Hz
3. Frequency
shift
5kHz
1) PC tune
CH: TX 460.005MHz
PTT: ON
4. High
transmit
power
1) PC tune
CH: TX center
Power meter
DC ammeter
Adjust it to 1.5W
±0.1W
Less than 1.6A
2) Test mode
CH: TX low, high
PTT: ON
Check
1.15~1.85W
Less than 1.6A
5. Low
transmit
power
1) PC tune
CH: TX center
PTT: ON
PC
key
Adjust it to 0.55W
±0.1W
Less than 0.9A
2) Test mode
CH: TX low, high
PTT: ON
Check
300~800mW
Less than 0.9A
6. DQT balance 1) Test mode
CH: TX low
SIG: TX 100Hz square wave
Linear detector fi lter
LPF: 3kHz
PTT: ON
Linear
detector
Oscilloscope
TX-RX
VR300 Adjust the wave-
form to square
wave.
