Radio Check Section - Kenwood NX-720 Service Manual
Vhf digital transceiver
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Also See for NX-720:
- Service manual (127 pages) ,
- Instruction manual (24 pages) ,
- Technical details (2 pages)
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NX-720(G)/720
Radio check Section
Item
Panel test mode
1. Frequency
1) CH-Sig: 1-1
check
PTT: ON
2. High power
1) CH-Sig: 1-1
check
PTT: ON
2) CH-Sig: 2-1
PTT: ON
3) CH-Sig: 3-1
PTT: ON
3. Low power
1) CH-Sig: 1-1
check
PTT: ON
2) CH-Sig: 2-1
PTT: ON
3) CH-Sig: 3-1
PTT: ON
4. MIC sensi-
1) CH-Sig:1-1
tivity check
AG: 1kHz
PTT: ON
42
ADJUSTMENT
Condition
PC test mode
equipment
1) Test Channel
f. counter
Channel: 1
Test Signaling
Mode: Analog
Signaling: 1
PTT: Press
[Transmit] button.
1) Test Channel
Power
Channel: 1
meter
Test Signaling
Ammeter
Mode: Analog
Signaling: 1
PTT: Press
[Transmit] button.
2) Test Channel
Channel: 2
Test Signaling
Mode: Analog
Signaling: 1
PTT: Press
[Transmit] button.
3) Test Channel
Channel: 3
Test Signaling
Mode: Analog
Signaling: 1
PTT: Press
[Transmit] button.
1) Test Channel
Channel: 1
Test Signaling
Mode: Analog
Signaling: 1
PTT: Press
[Transmit] button.
2) Test Channel
Channel: 2
Test Signaling
Mode: Analog
Signaling: 1
PTT: Press
[Transmit] button.
3) Test Channel
Channel: 3
Test Signaling
Mode: Analog
Signaling: 1
PTT: Press
[Transmit] button.
1) Test Channel
Deviation
Channel: 1
meter
Test Signaling
Oscillo-
Mode: Analog
scope
Signaling: 1
AG
AG: 1kHz
AF VM
PTT: Press
[Transmit] button.
Measurement
Test-
Unit
Terminal
Unit
ANT
Adjustment
Specifi cations/
Parts
Method
Check an internal
+/-0.25ppm
temperature of
+/-38.0Hz
radio from 20°C to
@155.1MHz
26°C.
Check
23.0W~29.0W
10A or less
3.5W~6.5W
7A or less
Adjust AG input
Dev 1.5kHz
to get a standard
at 5mV±1.0mV
MOD.
Remarks
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