Kenwood NXR-5700, Руководство по обслуживанию

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(No.RA033<Rev.001>)1-47
4. BPF Ad-
just FPU Test mode
1) Adjust Item: [Sensitivity 1]
2) Adjust Item: [Low], [Low’],
[Center], [High’], [High]
3) Adjust Item: [Sensitivity 2]
4) Adjust Item: [Low], [Low’],
[Center], [High’], [High] Tracking
generator
Spectrum
analyzer
Rear
RX RX ANT
CN403 RX PC
ADJ
Adjust it to
look like the
wave in figure
1 to 5. [Low]: Refer to Fig. 1 (Page.1-44)
[Low']: Refer to Fig. 2 (Page.1-44)
[Center]: Refer to Fig. 3 (Page.1-44)
[High’]: Refer to Fig. 4 (Page.1-44)
[High]: Refer to Fig. 5 (Page.1-44)
Press [Apply All] button to store
the adjustment value.
Note:
Adjust VT1-6 so that the adjust-
ment value rises in turn from Low
Frequency to High Frequency.
5. MCF
Adjust 1) Wide Tracking generator
Output: -20dBm Spectrum
analyzer
Frequency: 58.05MHz
Span: 100kHz Tracking
generator
Spectrum
analyzer RX CN638
CN639
RX TC601,
TC603,
TC605,
TC607
Adjust it to
look like the
wave in figure
6. Refer to Fig. 6 (Page 1-44)
2) Narrow
Spectrum analyzer
Span: 50kHz TC602,
TC604,
TC606,
TC608 Adjust it to look
like the wave in
figure 7. Refer to Fig. 7 (Page 1-45)
6. AGC
Target
Level ad-
just FPU Test mode
1) Adjust Item: [AGC Target
Level Adjustment] PC
ADJ Write the val-
ue as follow-
ings (typical
value)
[AGC Target
Level Adjust-
ment] = -18 Press [Apply] button to store the
adjustment value.
7. High
Supply
Voltage
adjust FPU Test mode
1)Adjust Item: [Supply Volt-
age (High)]
2)power supply: 16.0V PC
ADJ Press [Apply] button to store the
adjustment value.
8. Low
Supply
Voltage
adjust FPU Test mode
1)Adjust Item: [Supply Volt-
age (Low)]
2)power supply: 10.5V PC
ADJ Press [Apply] button to store the
adjustment value.
10. Fre-
quency
Adjust FPU Test mode
1) Adjust Item: [Frequency]
Connect the SSG to the RX
ANT.
Frequency:173.95MHz
SSG Output: -47dBm (1mV)
(CW (without modulation))
Caution:
Perform the frequency
adjustment under the fol-
lowing condition.
• Temperature range of
+24
°
C to +26
°
C
(+75.2 ° F to +78.8 ° F).
(The temperature is
displayed on the fre-
quency adjustment
screen of the KPG-D2.)
• Use an accuracy of
0.003ppm for the SSG.
(Use a standard oscilla-
tor if necessary.)
SSG Rear RX ANT PC
ADJ Press [Start] button of [Auto Tun-
ing].
Press [Apply] Button to store the
adjustment value after the auto-
matic adjustment was finished.
Item Condition
Measurement Adjustment
Specifications / Remarks
Test-
equipment
Unit
Terminal Unit
Parts Method