Kenwood NX-3720, Service Manual

Page: 41 / 210

(No.RA054<Rev.001>)1-41
 Test cable for microphone input (E30-3360-28)  MIC connector (Front panel view)
 Tuning cable (E30-7754-05)
Adapter cable (E30-7754-05) is required for injecting an audio
if PC tuning is used.
See “PC Mode” section for the connection.
4.6 Radio check Section
3
2
4
5
6
7
8
3
1
2
4
5
6
7
8
1
GREEN
RED
BLACK
BLUE
SHIELD
WHITE
GRAY
YELLOW
PTT
E
MIC-E
MIC
HK
1 : BLC
2 : +B
3 : GND
4 : PTT/TXD (PC serial data from radio)
5 : MICE
6 : MIC
7 : HOOK/RXD (PC serial data to radio)
8 : DM
1
8
Item Condition Measurement Adjustment Specifications
/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
Type: Analog
Signaling: 1
PTT: Press
[Transmit] button.
f. counter Panel ANT Check an
internal
temperature
of
radio from
20
° C to
33
°
C.
±0.25ppm
±38.7Hz
@155.1MHz
2.
High power
check 1)CH-Sig: 1-1
PTT: ON
TA: OFF
1)Test Channel
Channel: 1
Test Signaling
Type: Analog
Signaling: 1
PTT: Press
[Transmit] button.
Power meter
Ammeter Panel ANT Check 45W~55W
13.0A or less
2)CH-Sig: 2-1
PTT: ON
TA: OFF
2)Test Channel
Channel: 2
Test Signaling
Type: Analog
Signaling: 1
PTT: Press
[Transmit] button.
3)CH-Sig: 3-1
PTT: ON
TA: OFF
3)Test Channel
Channel: 3
Test Signaling
Type: Analog
Signaling: 1
PTT: Press
[Transmit] button.