Adjustment - Kenwood TK-3107 Service Manual

TK-3107
Use the KPG-55D programming software for adjustment of the next item in PC MODE (see page B51-8489-10).
Squelch Level, Transmit frequency, DQT Balance, RF Power, QT Deviation, DQT Deviation, Battery Level
Section common to the transmitter and receiver (VCO)
Item
1. Setting 1) Power supply voltage
Battery teriminal:7.5V
2. VCO lock 1) CH: TX high
voltage
2) CH: RX high
3) CH: TX low
4) CH: RX low
Receiver Section
Item
1. Band- 1) CH: RX center
pass filter 2) Tra generator output –40dBm
Connect the spectrum analyzer
to TP2 terminal.
2. AF level 1) CH: RX center
SSG output: –53dBm (501µV)
MOD: 1kHz
DEV: ±3.0kHz (Wide)
: ±1.5kHz (Narrow)
3. Sensitivity 1) CH: RX center
CH: RX LO
CH: RX Hi
SSG ouput: –116dBm (0.35µV)
MOD: 1kHz
DEV: ±3.0kHz (Wide)
: ±1.5kHz (Narrow)
4. Squelch 1) CH: RX center
Level MONI: ON
(PC MODE)
2) Level 9
SSG output: –116dBm
3) Level 3
SSG output: –125dBm (0.126µV)
Transmitter section
Item
1. Transmit 1) CH: TX center
frequency PTT: ON
(PC MODE)
2. DQT/QT 1) CH: TX center
Balance
(PC MODE)
3. Power 1) CH:TX LOW
(PC MODE) Battery terminal: 7.5V
PTT: ON
4. MAX DEV 1) CH: TX center
AG: 1kHz/120mV
PTT: ON
5. MIC SENS 1) CH: TX center
AG: 1kHz/12mV
6. QT DEV 1) CH: TX high
(PC MODE) QT: 67.0Hz
7. DQT DEV 1) DQT:023N center
(PC MODE)
8. Battery 1) Battery terminal: 5.8V
Level
14
(PC MODE)

ADJUSTMENT

Measurement
Condition Test equipment
Digital voltmeter
Measurement
Condition Test equipment
Tra generator
Spectrum analyzer
SSG
Oscilloscope
AF. V. M
Distortion meter
Measurement
Condition Test equipment
Frequency
counter
Modulation
analyzer or linear
detector (LPF: 3kHz)
Oscilloscope
Power meter
Ammeter
Modulation
analyzer or linear
detector (LPF:15kHz)
Oscilloscope
AG
AF. V. M
Modulation
analyzer or linear
detector (LPF:3kHz)
Oscilloscope
AG
AF. V. M
Modulation
analyzer or linear
detector (LPF:3kHz)
Oscilloscope
Digital voltmeter
Adjustment
Terminal Parts Method
CV TC1 3.7V
TC2 3.7V
Check
Adjustment
Terminal Parts Method
ANT TC201 Adjust the frequency so that
TP2 TC202 it becomes the spectrum
TC203 waveform shown in Fig.1.
ANT L212 Adjust to the MAX AF level
SP
Check
PC key Level 9
Adjust to close the squelch.
Level 3
Adjust to close the squelch.
Adjustment
Terminal Parts Method
ANT PC key Adjust to center frequency
VR500 Rectify the waveform to square
wave
Adjust it to 4.1W
ANT VR501 Adjust it to ± 4.2kHz
MIC (Wide)
Narrow check
(+, – Peak whichever is Maximum)
Check
(+, – Peak whichever is Maximum)
ANT PC key Adjust it to ± 0.75kHz
(Wide)
Adjust it to ± 0.35kHz
(Narrow)
PC key Adjust it to ± 0.75kHz
(Wide)
Adjust it to ± 0.35kHz
(Narrow)
BATT PC key Adjust so that the LED
flashes.
Specifications/
Remarks
±0.1V
±0.1V
more than 1.0V
Specifications/
Remarks
SINAD: 12dB or
higher
The squelch must
be closed.
The squelch must
be closed.
Specifications/
Remarks
within ± 100Hz
±0.1W
±100Hz
±1.8kHz~2.2kHz
±2.2kHz~3.6kHz:
(Wide)
±1.1kHz~1.8kHz:
(Narrow)
±50Hz
±50Hz
±50Hz
±50Hz
The LED must
flash.