Receiver Section Adjustments - Kenwood NXR-810 Service Manual

Receiver Section
Item Condition
1. RD Output FPU Test mode
level Adjust 1) Adjust Item: [RD Level (Ana-
[Analog log Wide)]
Wide] Connect the SSG to the RX
ANT.
SSG setting
Frequency: Desired Frequency
Output: –53dBm (501µV)
MOD: 1.0kHz
DEV: ±3.0kHz
2. RD Output FPU Test mode
level Adjust 1) Adjust Item: [RD Level (Ana-
[Analog Nar- log Narrow)]
row] Connect the SSG to the RX
ANT.
SSG setting
Frequency: Desired Frequency
Output: –53dBm (501µV)
MOD: 1.0kHz
DEV: ±1.5kHz
3. RA Output FPU Test mode
level Adjust 1) Adjust Item: [RA Level (Ana-
[Analog log Wide)]
Wide] Connect the SSG to the RX
ANT.
SSG setting
Frequency: Desired Frequency
Output: –53dBm (501µV)
MOD: 1.0kHz
DEV: ±3.0kHz
4. RA Output FPU Test mode
level Adjust 1) Adjust Item: [RA Level (Ana-
[Analog Nr- log Narrow)]
row] Connect the SSG to the RX
ANT.
SSG setting
Frequency: Desired Frequency
Output: –53dBm (501µV)
MOD: 1.0kHz
DEV: ±1.5kHz
5. Open FPU Test mode
Squelch 1) Adjust Item: [Open Squelch
Adjust (Analog Wide)]
[Analog Connect the SSG to the RX
Wide] ANT.
SSG setting
Frequency: [Low], [Low'],
[Center], [High'], [High]
Output
: 12dB SINAD level –1dB
MOD: 1.0kHz
DEV: ±3.0kHz
2) SSG output: OFF
ADJUSTMENT
Measurement
Test-
Unit Terminal Unit
equipment
SSG Rear RX ANT
AF VTVM Control
I/O Jack
RD (Pin
No.10)
SSG Rear RX ANT
AF VTVM Control
I/O Jack
RA (Pin
No.11)
SSG Rear RX ANT
Audio
analyzer
Oscilloscope
Confidential 2009.11.30
NXR-810
Adjustment
Parts Method
PC 80mV ±5mV
ADJ
Press [Apply] button to store
the adjustment value.
PC 400mV ±20mV
ADJ
Press [Apply] button to store
the adjustment value.
PC Press [Apply] button to store
ADJ the adjustment value.
Check The squelch shall be closed.
Specifi cations / Remarks
43