Kenwood NX-5700HB, Service Manual

Page: 48 / 106

1-48 (No.RA073<Rev.001>)
3. Transmit
Assist <PC>
1) Adj item: [Receive Assist]
2) Adj points: 9 points
[Low1], [Low2], [Low3],
[Center1], [Center2], [Center3],
[High1], [High2], [High3]
[

], [

] <PC>
[Automatic Adjustment]
1) Press [Tune Assist Voltage]
key.
2) Press [Apply All] key to store
the adjustment value after the
automatic adjustment has
finished.
3) Verify that the VCO lock voltage
is within the specification.
<PC> <Panel>
[Manual Adjustment]
1) [V] indicator on the PC window
or LCD shows VCO lock
voltage. Change the adjustment
value to get VCO lock voltage
within the specified voltage.
2) Press [Apply All] key for <PC> ,
or [ ] key for <Panel> to store
the adjustment value.
2.5V±0.1V
<Panel>
1) Adj item: [TAST]
2) Adj points: 9 points
[Low1 TAST], [Low2 TAST],
[Low3 TAST],
[Center1 TAST], [Center2 TAST],
[Center3 TAST], [High1 TAST],
[High2 TAST], [High3 TAST]
[

], [

]
Note 1 : Confirm the VCO lock voltage approximately 3 seconds after the adjustment value is changed.
Note 2 : The assist adjustment value must be between from 340 to 3550.
4. Frequency <PC>
1) Adj item: [Frequency]
2) SSG output : -20dBm (22.4mV)
(CW (without modulation))
SSG [

], [

] Press [Start] key of "Auto Tuning".
Press [Apply] key to store the
adjustment value after the
automatic adjustment has
finished.
IF20" value = Within 0±10 digits.
The value of "IF20" will become
around "0" after the adjustment
has finished.
<Panel>
*The Frequency adjustment can be
performed only in PC tuning mode.
Caution: Perform the frequency adjustment under the following conditions.
• Temperature range of +20

C to +33

C (+68.0

F to +91.4

F).
(The temperature is displayed on the Frequency adjustment screen of the KPG-D1/D1N and the LCD of the
transceiver.)
• Use an accuracy of 0.003ppm for the SSG. (Use a standard oscillator if necessary.)
Remark: "Frequency" is adjusted under receiving condition with SSG.
5. RTC
Correction <PC>
1) Adj item: [RTC Correction]
Frequency
Counter
Test Point
(TL15)
[

], [

] The adjustment value should input
the display of the Frequency
Counter.
Press [Apply] key for <PC> , or [ ]
key for <Panel> to store the
adjustment value.
<Panel>
1) Adj item: [RTC]
[

], [

]
Remarks:
Change the adjustment value so that the frequency currently displayed on Crystal Oscillation Frequency on the PC
window and the frequency currently displayed on the frequency counter are in agreement.
Item Condition Measurement Adjustment Specifications
/Remarks
<PC>: PC tuning mode
<Panel>: Panel tuning mode Unit Parts Method