Kenwood TK-3230 Service Manual page 20

TK-3230
Common Section
Item Condition
1. Setting 1) Set unit jig
Battery terminal: 3.8V
2. VCO lock 1) CH: TX high
voltage PTT: ON
2) CH: RX high
3) CH: RX low
4) CH: TX low
PTT: ON
Transmitter Section
Item Condition
1. Transmit 1) CH: TX center
frequency PTT: ON
(PC mode)
2. Transmit 1) CH: TX 460.00625MHz
frequency PTT: ON
shift
6.25kHz
(PC mode)
3. Transmit 1) CH: TX 460.005MHz
frequency PTT: ON
shift
5kHz
(PC mode)
4. Power 1) CH: TX center
(High)
(PC mode)
2) CH: TX low, high
PTT: ON
5. Power 1) CH: TX center
(Low) PTT: ON
(PC mode)
2) CH: TX low, high
PTT: ON
6. DQT balance 1) CH: TX 100Hz square wave
(PC mode) Modulation analyzer fi lter
LPF: 3kHz
PTT: ON
20
ADJUSTMENT
Measurement
Test-
Unit Terminal Unit
equipment
Digital TX-RX LV TX-RX
voltmeter
Measurement
Test-
Unit Terminal Unit
equipment
f. counter ANT
Jig cable
SP/MIC
jack
Power meter
Ammeter
Linear TX-RX
detector
Oscilloscope
Adjustment
Parts Method
TC1 1.85V ±0.05V
Check 2.4V or less
0.4V or more
Adjustment
Parts Method
PC Adjust to the center Within ±100Hz
key frequency.
Adjust to the desired Within ±100Hz
frequency.
Adjust it to 1.5W ±0.1W
Less than 1.6A
Check 1.15~1.85W
Less than 1.6A
PC Adjust it to 0.55W ±0.1W
key Less than 0.9A
Check 300~800mW
Less than 0.9A
VR300 Adjust the wave-
form to square
wave.
Specifi cations / Remarks
Specifi cations / Remarks