Kenwood NX-900 Service Manual page 53

Item
Panel tuning mode
5. RTC 1) Adj item: [RTC]
(Real-time Adjust: [✳✳✳]
clock)
oscillation
frequency
6. Frequency * The Frequency
adjustment can be
performed only in
PC test mode.
ADJUSTMENT
Condition
PC test mode
equipment
1) Adj item: [RTC
(Real-time clock)]
1) Adj item: SSG
[Frequency]
2) CH-Sig: 3-1
SSG output :
–20dBm (22.4mV)
(CW (without
modulation))
Caution:
Perform the frequency
adjustment under the
following conditions.
• Temperature range
of +23˚C to +27˚C
(+73.4˚F to +80.6˚F).
(The temperature is
displayed on the Fre-
quency adjustment
screen of the KPG-
111D and the LCD
of the transceiver.)
• Use an accuracy
of 0.001ppm for
the SSG. (Use a
standard oscillator if
necessary.)
Measurement
Test-
Unit Terminal Unit
ANT
NX-900
Adjustment
Specifi cations /
Parts Method
[ ] [Panel tuning mode] Adjustment of the
Press [ ] key. After transceiver's inter-
automatic adjust- nal clock.
ment adjusted value
is displayed on LCD.
Press [ ] key to
store the adjust-
ment value.
[PC test mode]
Press [Start] button
of "Auto Tuning".
Press [Apply] button
to store the adjust-
ment value after the
automatic adjust-
ment was fi nished.
[PC test mode] [PC test mode]
Press [Start] button "IF20" value =
of "Auto Tuning". Within 0±12 digits.
Press [Apply] button The value of "IF20"
to store the adjust- will become around
ment value after the "0" after the adjust-
automatic adjust- ment was fi nished.
ment was fi nished. Frequency is adjust-
ed under receiving
condition with SSG.
Remarks
53