Kenwood TK-3107G Service Manual page 32

TK-3107G
Transmitter Section
Item Condition
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 center
(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
(PC mode)
32
ADJUSTMENT
Measurement
Test-
Unit Terminal Unit
equipment
f.counter TX-RX ANT
Modulation TX-RX
analyzer
or Linear
detector
(LPF: 3kHz)
Oscilloscope
Power
meter
Ammeter
Modulation ANT TX-RX
analyzer
or Linear
detector
(LPF: 15kHz)
Oscilloscope
AG MIC
AF V.M
Modulation ANT
analyzer
or Linear
detector
(LPF: 3kHz)
Oscilloscope
AG
AF V.M
Modulation
analyzer
or Linear
detector
(LPF: 3kHz)
Oscilloscope
Digital BATT
voltmeter
CENTER 460.0MHz: C
410.0MHz: C2
Fig. 1
Adjustment
Parts Method
PC Adjust to center Within ±100Hz
key frequency
VR500 Rectify the waveform
to square wave
Adjust it to 4.1W ±0.1W
1.8A or less
VR501 Adjust it to ±4.2kHz ±100Hz
(Wide)
Narrow check ±1.8kHz~2.2kHz
(+, – Peak whichever
is Maximum)
Check ±2.2kHz~3.8kHz (Wide)
(+, – Peak whichever ±1.1kHz~1.9kHz (Narrow)
is Maximum)
PC Adjust it to ±0.75kHz ±50Hz
key (Wide)
Adjust it to ±0.35kHz
(Narrow)
Adjust it to ±0.65kHz ±50Hz
(Wide)
Adjust it to ±0.30kHz
(Narrow)
Adjust so that the The LED must fl ash.
LED fl ashes.
Specifi cations / Remarks