Common Section; Transmitter Section - Kenwood TK-3230 Service Manual Addendum

Common Section

Item Condition
1. Setting 1) Set battery jig
Battery terminal: 3.8V
2. VCO lock 1) CH: TX high
voltage PTT: ON
(Test mode)
2) CH: RX high
3) CH: RX low
4) CH: TX low
PTT: ON

Transmitter Section

Item Condition
1. Frequency 1) PC tune
adjustment CH: TX center
PTT: ON
2. Frequency 1) PC tune
shift CH: TX 460.00625MHz
6.25kHz PTT: ON
3. Frequency 1) PC tune
shift CH: TX 460.005MHz
5kHz PTT: ON
4. High 1) PC tune
transmit CH: TX center
power
2) Test mode
CH: TX low, high
PTT: ON
5. Low 1) PC tune
transmit CH: TX center
power PTT: ON
2) Test mode
CH: TX low, high
PTT: ON
6. DQT balance 1) Test mode
CH: TX low
SIG: TX 100Hz square wave
Linear detector fi lter
LPF: 3kHz
PTT: ON
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
DC ammeter
Linear TX-RX
detector
Oscilloscope
TK-3230
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
3