Common Section - Kenwood NX-800 Service Manual

Uhf digital transceiver
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Item
Panel test mode
5. Sensitivity
1) CH-Sig : 1-1
check
SSG output
Wide:
–117dBm (0.32µV)
(MOD: 1kHz/± 3kHz)
Narrow:
–117dBm (0.32µV)
(MOD: 1kHz,
Dev: ± 1.5kHz)

Common Section

Item
Panel tuning mode
1. Setting
1) DC voltage:13.6V
2) SSG standard modulation
[Wide] MOD:1kHz,DEV:3kHz
[Narrow] MOD: 1kHz,DEV: 1.5kHz
2. LCD contrast
1) Adj item:[CNTR]
Adjust:[***]
Press [ ] key to store
the adjustment value.
3. Receive
1) Adj item:[RAST]
Assist
Adjust:[***]
2) Adj item:[L RAST]→
[L' RAST]→[C RAST]→
[H' RAST]→[H RAST]
Adjust:[***]
Press [ ] key to store
the adjustment value.
Transmit
1) Adj item:[TAST]
Assist
Adjust:[***]
2) Adj item:[L TAST]→
[L' TAST]→[C TAST]→
[H' TAST]→[H TAST]
Adjust:[***]
PTT : ON
Press [ ] key to store
the adjustment value.
4. RTC
1) Adj item:[RTC]
oscillation
Adjust:[***]
frequency
adjust
ADJUSTMENT
Condition
PC test mode
equipment
1) Test Channel
SSG
Channel : 1
AF VTVM
Test Signaling
Oscilloscope
Mode : Analog
Distortion
Signaling : 1
meter
SSG output
Wide: –117dBm
(0.32µV)
(MOD: 1kHz/± 3kHz)
Narrow:
–117dBm (0.32µV)
(MOD : 1kHz,
Dev: ± 1.5kHz)
Condition
PC test mode
equipment
1) Adj item:[LCD Contrast]
Press [Apply] button
to store the
adjustment value.
1) Adj item:[Receive
Assist]
2) Adj item:[Low]
[Low']
[Center]
[High']
[High]
Press [Apply All] button to
store the adjustment value.
1) Adj item:[Transmit
Assist]
2) Adj item:[Low]
[Low']
[Center]
[High']
[High]
PTT: Press [Transmit]
button.
Press [Apply All] button to
store the adjustment value.
1) Adj item:
[RTC(Real-time clock)]
Measurement
Test-
Unit
Terminal
Unit
ANT
EXT SP
connector
Measurement
Test-
Unit
Terminal
Unit
NX-800
Adjustment
Specifications/
Parts
Method
Check
12dB SINAD or
more
Adjustment
Specifications/
Parts
Method
[Panel
Adjust the LCD
After replacing
tuning
contrast by looking.
the LCD align
mode]
contrast.
[
],[ ]
The sub LCD display
3.0V± 0.1V
[PC test
and [V] indicator on
mode]
the PC window
[PC test mode]
[ ],[ ]
shows VCO lock
Press [Apply All]
voltage. Change the
button to store the
adjustment value to
adjustment value
get VCO lock voltage
after all
within the limit of the
adjustment point
specified voltage.
was adjusted.
Note:
Confirm the VCO
lock voltage
approximately 3
seconds after the
adjustment value is
changed.
[
]
[Panel tuning mode]
Adjustment of the
Press [
] key. After
transceiver's
automatic adjustment
internal clock.
adjusted value is
displayed on LCD.
Press [ ] key to store
the adjustment value.
[PC test mode]
Press [Start] button of
"Auto Tuning". Press
[Apply] button to store
the adjustment value
after the automatic
adjustment was
finished.
Remarks
Remarks
51

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