Common Section - Kenwood NX-320 Series Service Manual

Item
Panel test mode
4. MIC 1) CH-Sig: 1-1
sensitivity AG: 1kHz
check PTT: ON
5. Sensitivity 1) CH-Sig : 1-1
check SSG output
Wide:
–117dBm (0.32µV)
(MOD: 1kHz/±3kHz)
Narrow:
–117dBm (0.32µV)
(MOD: 1kHz/±1.5kHz)

Common Section

Item
Panel tuning mode
1. Setting 1) BATT terminal voltage: 7.5V
2) SSG standard modulation
[Wide] MOD: 1kHz, DEV: 3kHz
[Narrow] MOD: 1kHz, DEV: 1.5kHz
2. Counter- 1) Adj item: [VOL1]
clockwise Adjust: [✳✳✳]
Volume
3. Clockwise 1) Adj item: [VOL2]
volume Adjust: [✳✳✳]
ADJUSTMENT (K TYPE)
Condition
PC test mode
equipment
1) Test Channel Deviation
Channel: 1 meter
Test Signaling Oscilloscope
Mode: Analog AG
Signaling: 1 AF VTVM
AG: 1kHz
PTT: Press [Trans-
mit] button.
1) Test Channel SSG
Channel: 1 AF VTVM
Test Signaling Oscilloscope
Mode: Analog Distortion
Signaling: 1 meter
SSG output 8Ω dummy
Wide: load
–117dBm (0.32µV)
(MOD: 1kHz/±3kHz)
Narrow:
–117dBm (0.32µV)
(MOD: 1kHz/±1.5kHz)
Condition
PC test mode
equipment
1) Adj item:
[Counterclockwise
Volume]
1) Adj item:
[Clockwise Volume]
Measurement
Test-
Unit Terminal Unit
Panel ANT
SP/MIC
connector
Panel ANT
SP/MIC
connector
Measurement
Test-
Unit Terminal Unit
NX-320
Adjustment
Specifi cations /
Parts Method
Adjust AG input 12.5mV±5.8mV
to get a standard
MOD.
Check 12dB SINAD or
more
Adjustment
Specifi cations /
Parts Method
[Panel tuning mode] This item is needed
Turn the volume when the variable
knob counterclock- resistor (R31-0685-
wise fully. Press 05) is replaced.
[B] key to store the
adjustment value.
[PC test mode]
Turn the volume
knob counterclock-
wise fully. Press
[Apply] button to
store the adjust-
ment value.
[Panel tuning mode] This item is needed
Turn the volume when the variable
knob clockwise resistor (R31-0685-
fully. Press [B] key 05) is replaced.
to store the adjust-
ment value.
[PC test mode]
Turn the volume
knob clockwise
fully. Press [Apply]
button to store the
adjustment value.
Remarks
Remarks
43