Kenwood NEXEDGE NX-220, Service Manual, Page: 62 / 118

NX-220
62
ADJUSTMENT
Radio Check Section
Item
Condition Measurement Adjustment
Specifi cations /
Remarks
Panel test mode PC test mode
Test-
equipment
Unit Terminal Unit Parts Method
1. Frequency
check
1) CH-Sig: 1-1
PTT:
ON
1) Test Channel
Channel: 1
Test
Signaling
Mode: Analog
Signaling: 1
PTT:
Press
[Transmit] button.
f. counter Panel ANT Check an internal
temperature of
radio from 20˚C to
26˚C. 155.099962~
155.100038MHz
(±0.25ppm
@155.1MHz)
2. High
power
check
(Batt: 7.5V)
1) CH-Sig: 1-1
PTT:
ON
1) Test Channel
Channel: 1
Test
Signaling
Mode: Analog
Signaling: 1
PTT:
Press
[Transmit] button.
Power meter
Ammeter Check 4.0W~6.0W
2.0A or less
2) CH-Sig: 2-1
PTT:
ON
2) Test Channel
Channel: 2
Test
Signaling
Mode: Analog
Signaling: 1
PTT:
Press
[Transmit] button.
3) CH-Sig: 3-1
PTT:
ON
3) Test Channel
Channel: 3
Test
Signaling
Mode: Analog
Signaling: 1
PTT:
Press
[Transmit] button.
3. Low power
check
(Batt: 7.5V)
1) CH-Sig: 1-1
PTT:
ON
1) Test Channel
Channel: 1
Test
Signaling
Mode: Analog
Signaling: 1
PTT:
Press
[Transmit] button.
0.7W~1.3W
1.0A or less
2) CH-Sig: 2-1
PTT:
ON
2) Test Channel
Channel: 2
Test
Signaling
Mode: Analog
Signaling: 1
PTT:
Press
[Transmit] button.
3) CH-Sig: 3-1
PTT:
ON
3) Test Channel
Channel: 3
Test
Signaling
Mode: Analog
Signaling: 1
PTT:
Press
[Transmit] button.
4. MIC
sensitivity
check
1) CH-Sig: 1-1
AG:
1kHz
PTT: ON
1) Test Channel
Channel: 1
Test
Signaling
Mode: Analog
Signaling: 1
AG:
1kHz
PTT: Press
[Transmit] button.
Deviation
meter
Oscilloscope
AG
AF VTVM Panel ANT
SP/MIC
connector Adjust AG input
to get a standard
MOD. 12.5mV±5.8mV