Kenwood TK-8102 Service Manual page 28

TK-8102
Use KPG-70D programming software for adjustment of the next items.
PCB Section
Item
1. Setting 1) Power supply voltage
DC Power supply teriminal: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(501uV)
Mod: 1kHz, Dev: 3kHz
4. RF Band- 1) CH: RX center wide
pass filter CH: RX low wide
CH: RX high wide
2) Tra generator output: -30dBm
Connect the spectrum analyzer
to BPF terminal
Receiver Section
Item
1. Sensitivity 1) CH: RX low:
CH: RX center:
CH: RX high:
2) SSG output:
-118dBm(0.28µV):
-116dBm(0.35µV):
Mod: 1kHz
Dev: ±3.0kHz: Wide
Dev: ±1.5kHz: Narrow
2. Squelch 9 1) CH: RX low:
CH: RX center:
CH: RX high:
2) SSG output:
9dB above to 12dB SINAD level:
Wide/Narrow
Mod: 1kHz
Dev: ±3.0kHz: Wide
Dev: ±1.5kHz: Narrow
3. Squelch 1 1) CH: RX low:
CH: RX center:
CH: RX high:
2) SSG output:
2dB above to 12dB SINAD level:
Wide/Narrow
Mod: 1kHz
Dev: ±3.0kHz: Wide
Dev: ±1.5kHz: Narrow
Test frequency(MHz)
Channel TX
1: Center 470.100
2: Low 450.100
3: High 489.900
4 470.000
5 470.200
6 470.400
TK-260 :K, K2
28
ADJUSTMENT
Measurement
Condition Test equipment
Digital voltmeter
SSG
Digital voltmeter
Tra generator
Spectrum analyzer
Measurement
Condition Test equipment
Wide/Narrow SSG
Oscilloscope
Wide/Narrow
AF. V. M
Wide/Narrow
Distortion meter
Wide
Narrow
Wide
Wide/Narrow
Wide
Wide
Wide/Narrow
Wide
RX
470.050
450.050
489.950
470.000
470.200
470.400
Adjustment
Terminal Parts Method
CV TC2 5.5V
TC1 5.5V
Check
AFV L22 3.2~3.3V(DC)
ANT TC3 Adjust the BPF waveform to Fig.1
BPF TC5
Adjustment
Terminal Parts Method
ANT Check
Ext. SP
PC key Adjust to open the squelch.
Specifications/
Remarks
±0.1V
±0.1V
0.8V or more
Specifications/
Remarks
SINAD:
12dB or higher