(No.RA073<Rev.001>)1-47
4.8
Common Section
5. Sensitivity
check
<PC>
1) Test Channel: 1
Test Signaling Mode: Analog
Signaling: 1
2) SSG output: -117dBm (0.32
V)
Wide: MOD: 1kHz/±3.0kHz
Narrow: MOD: 1kHz/±1.5kHz
SSG
AF VM
Oscilloscope
Distortion
meter
4ohm
Dummy load
Check
12dB SINAD or
more
<Panel>
1) CH-Sig: 1-1
2) SSG output: *Same as above
Item
Condition
Measurement
Adjustment
Specifications
/Remarks
<PC>: PC test mode
<Panel>: Panel test mode
Unit Parts
Method
Item
Condition
Measurement
Adjustment
Specifications
/Remarks
<PC>: PC tuning mode
<Panel>: Panel tuning mode
Unit Parts
Method
1. Setting
1) DC voltage:13.4V
2) SSG standard modulation
[Wide] MOD:1kHzDEV:3kHz
[Narrow] MOD:1kHzDEV:1.5kHz
2. Receive
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 been
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: [RAST]
2) Adj points: 9 points
[Low1 RAST], [Low2 RAST],
[Low3 RAST],
[Center1 RAST], [Center2 RAST],
[Center3 RAST], [High1 RAST],
[High2 RAST], [High3 RAST]
[
], [
]
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.
Содержание NX-5700HB
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