Kenwood TK-3118, Руководство по обслуживанию

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16
TK-3118
TK-260 :K, K2
Use the KPG-69D programming software for adjustment of the next item in PC MODE (see page 10).
Squelch Level, S meter Level, Lo Power, Hi Power, QT Deviation, DQT Deviation, and Battery warning.
ADJUSTMENT
Parts
TC1
TC2
Method
1.0V (C,C4)
1.0V (C,C4)
Specifications/
Remarks
±
0.1V
± 0.1V
less than 4.5V
Terminal
CV
Test equipment
Digital voltmeter
Condition
1) Power supply voltage
Battery teriminal:7.5V
1) CH: TX low
2) CH: RX low
3) CH: TX high
4) CH: RX high
Section common to the transmitter and receiver (VCO)
Item
1. Setting
2. VCO lock
voltage
Measurement Adjustment
Parts
TC3,TC5
L22
PC key
PC key
Method
Adjust the spectram waveform
shown Fig1
Adjust to the MAX AF level
Vol. knob position at 12 o'clock
Check
Adjust to open the squelch.
Adjust to open the squelch.
Adjust to Full digit
Adjust to one digit
Specifications/
Remarks
SINAD: 12dB or
higher
Terminal
ANT
SP
ANT
Test equipment
Tra generator
Spectrum analyzer
SSG
Oscilloscope
AF. V. M
Distortion meter
SSG
Condition
1) CH: RX center
1) CH: RX center
SSG output: -53dBm(501 µ V)
MOD: 1kHz
DEV:
± 3.0kHz
1) CH: RX center
CH: low
CH: high
SSG ouput: -116dBm(0.35 µ V)
MOD: 1kHz
DEV: ± 3.0kHz
1) CH: RX center
2) Level 9
SSG output: -116dBm(0.35 µ V)
3) Level 1
SSG output: -123dBm(0.16 µ V)
1) CH: RX center
2) Full digit
SSG output: -110dBm(0.7 µ V)
3) one Digit
SSG output: -120dBm(0.2
µ V)
Receiver Section
Item
1. Band-
pass filter
2. AF level
3. Sensitivity
4. Squelch
Level
(PC Mode)
5. S meter
Level
(PC Mode)
Measurement Adjustment
Transmitter section
Item Condition
Measurement Adjustment
Specifications/
Test equipment Terminal Parts Method
Remark
1. Transmit 1) CH: TX center Frequency ANT VR1 Adjust to center frequency within ± 100Hz
frequency PTT: ON counter
2. DQT/QT 1) CH: TX center Modulation analyzer VR301 Rectify the waveform to square
Balance wave
3. Lo Power 1) CH: TX center Power meter PC key Adjust it to 2W within ± 0.1W
(PC Mode) CH: TX low Current meter
CH: TX high
4. Hi Power 1) CH: TX center Power meter PC key Adjust it to 5W within ± 0.2W
(PC Mode) CH: TX low Current meter
CH: TX high
5. MAX DEV 1) CH: TX center Modulation VR302 Adjust it to ± 4.2kHz (Wide) ± 100Hz
AG: 1kHz/50mV analyzer 15kHz LPF
AG, AF. V. M
Check (Narrow) ± 1.9kHz~2.2kHz
6. MIC 1) CH: TX center Check (Wide) ± 2.2kHz~3.8kHz
Sensitivity AG: 1kHz/5mV
7. QT 1) CH: TX center Modulation PC key Adjust it to 0.75kHz (Wide) ± 0.05Hz
Deviation CH: TX low analyzer 3kHz LPF Adjust it to ± 0.35kHz (Narrow) (Wide/Narrow)
(PC Mode) CH: TX high CH: TX Center
QT: 151.4Hz
8. DQT 1) CH: TX center Modulation PC key Adjust it to ± 0.75kHz (Wide) ± 0.05Hz
Deviation CH: TX low analyzer 3kHz LPF Adjust it to ± 0.35kHz (Narrow) (Wide/Narrow)
(PC Mode) CH: TX high CH: TX Center
DQT:023N
9. DTMF 1) CH TX center using [9] key Modulation VR303 Adjust it to 2.5kHz (Wide) ± 100Hz
Deviation analyzer 15kH LPF
10.VOX Level PC key Adjust it to [4]
(PC Mode)
11.Battery 1) Battery terminal: 5.5V PC key
Warning
(PC Mode)