Kenwood NX-300S Service Manual page 43

Item
5. Sensitivity 1) Test Channel
check Channel: 1
Test Signaling
Mode: Analog
Signaling: 1
SSG output
Wide: –117dBm (0.32µV)
(MOD: 1kHz/±3kHz)
Narrow: –117dBm (0.32µV)
(MOD: 1kHz/±1.5kHz)
Common Section
Item
1. Setting 1) DC voltage: 7.5V
2) SSG standard modulation
[Wide] MOD: 1kHz, DEV: 3kHz
[Narrow] MOD: 1kHz, DEV: 1.5kHz
2. Counter- 1) Adj item: [Counterclockwise Volume]
clockwise
Volume
3. Clockwise 1) Adj item: [Clockwise Volume]
Volume
4. Receive 1) Adj item: [Receive Assist]
Assist 2) Adj item: [Low], [Low'], [Center], [High'],
[High]
Press [Apply All] button to store the adjust-
ment value.
Transmit 1) Adj item: [Transmit Assist]
Assist 2) Adj item: [Low], [Low'], [Center], [High'],
[High]
PTT: Press [Transmit] button.
Press [Apply All] button to store the adjust-
ment value.
ADJUSTMENT
Condition
equipment
SSG
AF VM
Oscilloscope
Distortion
meter
8
Dummy
load
Condition
equipment
Measurement
Test-
Unit Terminal Unit
ANT
Universal
connector
Measurement
Test-
Unit Terminal Unit
NX-300(S)
Adjustment
Specifi cations /
Parts Method
Check 12dB SINAD or
more
Adjustment
Specifi cations /
Parts Method
Turn the volume This item is needed
knob counterclock- when the variable
wise fully. resistor (R31-0666-
Press [Apply] button 05) is replaced.
to store the adjust-
ment value.
Turn the volume
knob clockwise fully.
Press [Apply] button
to store the adjust-
ment value.
[ ],[ ] [V] indicator on the 2.5V±0.1V
PC window shows
VCO lock voltage. Press [Apply All]
Change the adjust- button to store the
ment value to get adjustment value
VCO lock voltage after all adjustment
within the limit of the points have been
specifi ed voltage. adjusted.
Note:
Confi rm the VCO
lock voltage approx-
imately 3 seconds
after the adjustment
value is changed.
Remarks
Remarks
43