Kenwood NX-340 Service Manual page 18

4.5 Common Section
Item
1. Setting 1) Power supply voltage
DC power supply terminal : 7.5V
2. Receive 1) Auto tuning
Assist voltage *Note 1
2) CH: Low
*Note 2
3. Transmit 1) Auto tuning
Assist voltage *Note 1
2) CH: Low
*Note 2
*Note 1:
During test mode, click the [Tune Assist Voltage] button in test mode dialog box, then start automatic adjustment of the Receive/
Transmit assist voltage.
*Note 2:
The CV voltage checking of CH:2 (Default value) test frequency must be performed in test mode.
4.6 Transmitter Section
Item
1. Frequency (1)TEST CH: Center
PTT ON
2. High Trans- (1)TEST CH: Low, Low', Center,
mit Power High', High (5 point)
(2)Baterry Terminal voltage:7.5V
(3)PTT ON
3. Low Trans- (1)TEST CH: Low, Center, High
mit Power (3 point)
(2)Baterry Terminal voltage:7.5V
(3)PTT ON
4. DQT (1)TEST CH: Low, Low', Center,
Balance 1 High', High (5 point)
(2)Deviation meter filter
*Note 3
LPF: 3kHz
HPF: OFF
(3)PTT ON
DQT (1)TEST CH: Low, Low', Center,
Balance 2 High', High (5 point)
(2)Deviation meter filter
*Note 3
LPF: 3kHz
HPF: OFF
(3)PTT ON
5. Maximum (1)TEST CH: Low, Low', Center,
Deviation (Ana- High', High (5 point)
log Narrow) (2)Deviation meter filter
LPF: 15kHz
HPF: OFF
(3)PTT ON
1-18 (No.RA024<Rev.001>)
Condition
Test-
equipment
DVM
DVM
Condition
Test-
equipment
Frequency
counter
Power
meter
Ammeter
Power
meter
Ammeter
Deviation
meter
Oscillo-
scope
Deviation
meter
Oscillo-
scope
Deviation
meter
Oscillo-
scope
Measurement
Unit Terminal Unit
TX-RX CVIN
TX-RX CVIN
Measurement
Unit Terminal Unit
ANT
ANT
ANT
ANT
ANT
ANT
Adjustment Specifications
/Remarks
Parts Method
FPU 4.0 ± 0.1V
Check 0.6V or more
(at CVIN terminal)
FPU 4.0 ± 0.1V
Check 0.6V or more
(at CVIN terminal)
Adjustment
Parts Method
FPU 485.100MHz
FPU 5.0W
FPU 1.0W
FPU Make the demodula-
tion wave into square
wave.
FPU The Deviation of
20Hz frequency is-
fixed.
Change the 1kHz ad-
justment value to be-
come the same
deviation of 20Hz
within the specified
range.
FPU 2.0kHz (According to
larger +, -)
Specifica-
tions
/Remarks
±50Hz
±0.1W
2.0A or less
±0.1W
1.0A or less
±15Hz
±80Hz
Note:
FPU auto in-
put 1kHz/
150mV