Kenwood TK-3000 Service Manual page 20

TK-3000
Common Section
Item Condition
1. Setting 1) BATT terminal voltage: 7.5V
2) SSG standard modulation
[Wide]
MOD: 1kHz, DEV: 3kHz
[Narrow]
MOD: 1kHz, DEV: 1.5kHz
2. VCO Lock 1) Adj item: High
Voltage
Transmitter Section
Item Condition
1. Frequency 1) Adj item: High
Press [Transmit] button.
2. High 1) Adj item: Low, Center, High
Transmit (3 points)
Power and BATT terminal voltage: 7.5V
Protective Press [Transmit] button.
Current
3. Low 1) Adj item: Low, Center, High
Transmit (3 points)
Power BATT terminal voltage: 7.5V
Press [Transmit] button.
4. DQT 1) Adj item: Low, Center, High
Balance (3 points)
[Wide] (Signaling Square Wave)
Deviation meter filter
LPF: 3kHz
HPF: OFF
Press [Transmit] button.
5. Maximum 1) Adj item: Center, Low, High
Deviation (3 points)
[Wide] AG: 1kHz/150mV
Deviation meter filter
LPF: 15kHz
HPF: OFF
Press [Transmit] button.
6. Battery 1) BATT terminal voltage: 5.9V
Warning
Level
7. Battery 1) BATT terminal voltage: 5.7V
Detection PTT: ON
Check
2) BATT terminal voltage: 7.5V
(User mode)
PTT: ON
• This transceiver is designed to make adjustments simple.
• It is not necessary to adjust the fixed values for the DTMF-DEV, DQT-DEV, QT-DEV, and MIC sensitivity.
• The TX-DEV Narrow setting uses the Wide calculated adjustment level value.
20
ADJUSTMENT
Measurement
Test-
Unit Terminal Unit
equipment
TX-RX ANT
(CV)
Measurement
Test-
Unit Terminal
equipment
f. counter TX-RX ANT
Power
meter
Ammeter
Power TX-RX ANT
meter
Deviation SP/MIC
meter connector
Oscilloscope
AG
AF VTVM
DVM TX-RX BATT
terminal
Power ANT
meter
DVM BATT
terminal
Adjustment
Parts Method
FPU 4.0V : K, M
3.7V : M2
Adjustment
Unit Parts Method
FPU 479.900MHz : K,M
429.900MHz : M2
FPU 3.8W
1.0W
FPU Make the modulation
wave into square
waves.
4.0kHz
(According to
the lager +, –)
FPU Write
Check
Specifications / Remarks
±0.1V
Specifications / Remarks
±50Hz
±0.1W
2.0A or less
±0.1W
1.0A or less
±100Hz
BATT terminal voltage: 5.9V
LED blinks
No transmit power
LED does not blink