Kenwood NXR-5700, Service Manual

Page: 55 / 122

(No.RA033<Rev.001>)1-55
15.Bal-
ance Ad-
just
[20Hz Ad-
justment] FPU Test mode
1) Adjust Item: [Balance] Connect the
Deviation Meter to the TX ANT end
via the ATT.
Deviation Meter setting
LPF: 3kHz
HPF: OFF
De-emphasis: OFF
Detector: (p-p)/2
2) Adjust Item: [A: Low], [A: Center],
[A: High], [B: Low], [B: Center], [B:
High]
Press [Transmit] button.
20Hz is transmitted. Deviation
meter
Oscillo-
scope Rear TX ANT PC
ADJ 1) Adjust Gain
A to get
1.7KHz
2) Adjust Gain
B to get
1.7KHz than
on 2KHz
3) Repeat the
1) and 2) to
make sure
both Gain A
and Gain B
reading are
1.7KHz 1.700KHz ±20Hz
Press [Apply All] button
to store the adjustment
value after all adjust-
ment point was adjust-
ed.
[2.0kHz
Adjust-
ment] FPU Test mode
1) Adjust Item: [Balance]
[2kHz Sine Wave] check box is
checked.
2) Adjust Item: [A: Low], [A: Center],
[A: High], [B: Low], [B: Center], [B:
High]
Press [Transmit] button.
Check while transmitting change to
2kHz.
16. Stan-
dard Mod-
ulation
Check
[Analog
Wide] 1) Connect the Deviation Meter to the
TX ANT end via the ATT.
Deviation Meter setting
LPF: 15kHz
HPF: OFF
De-emphasis: OFF
Detector: (p-p)/2
2) Connect the AG to the MIC Termi-
nal of MIC connector.
AG Frequency: 1kHz (Sine Wave)
AG Output level: Adjust to become the
3kHz Deviation. Deviation
meter
Oscillo-
scope
AG
DVM Rear
Front
TX ANT
MIC
Check 5.0mV±1.5mV
[Analog
Narrow] 1) Connect the Deviation Meter to the
TX ANT end via the ATT.
Deviation Meter setting
LPF: 15kHz
HPF: OFF
De-emphasis: OFF
Detector: (p-p)/2
2) Connect the AG to the MIC Termi-
nal of MIC connector. AG Frequency
: 1kHz (Sine Wave)
AG Output level: Adjust to become the
1.5kHz Deviation.
Item Condition
Measurement Adjustment
Specifications / Re-
marks
Test-
equipment
Unit
Terminal Unit
Parts Method