Kenwood TK-8102H Service Manual page 16

TK-8102H
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
PCB Section
Item
1. Setting 1) Power supply voltage
DC Power supply terminal : 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 (501µV)
Mod : 1kHz, Dev : 3kHz
4. RF 1) CH : RX center (Wide)
bandpass CH : RX low (Wide)
filter CH : RX high (Wide)
2) Tra generator output : –30dBm
Connect the spectrum analyzer
to BPF terminal
* Adjustment of TX VCO lock voltage
1. Remove R814, R888 (fuse), R823 and R807 (all on component side).
2. Remove PCB from chassis.
3. Transmit and check voltage at [CV] point.
Warning : Do not transmit if step "1." is not complete.
4. Adjust of voltage can be done by tuning TC2.
K,M (F1)
16
ADJUSTMENT
K,M (F1)
RX TX
470.050 498.600
450.050 485.100
489.950 511.900
470.000 498.500
470.200 498.700
470.400 498.900
Condition
Test equipment
Digital voltmeter
SSG
Digital voltmeter
Tra generator
Spectrum analyzer
K2 (F2)
RX TX
498.550 502.600
485.050 485.100
511.950 519.900
498.500 502.000
498.700 502.200
498.900 502.400
Measurement
Terminal Parts
CV TC2
TC1
AFV L22
ANT TC3
BPF TC5
K2,M2 (F2)
Fig. 1
M2 (F2)
RX TX
502.550 415.100
485.050 400.100
519.950 429.900
502.000 415.000
502.200 415.200
502.400 415.400
Adjustment
Method
5.5V
5.5V
Check
3.2~3.3V (DC)
Adjust the BPF waveform
to Fig. 1
K3 (F3)
K3 (F3)
RX
415.050
400.050
429.950
415.000
415.200
415.400
Specifications/
Remarks
±0.1V
±0.1V
0.8V or more