Kenwood NX-3400, Service Manual

Page: 52 / 98

1-52 (No.RA070<Rev.001>)
4.9 Receiver Section
Note: "Adj points" are described by abbreviation as "8" for 800M and "9" for 900M.
Item Condition Measurement Adjustment Specifications
/Remarks
<PC>: PC tuning mode
<Panel>: Panel tuning mode Unit Parts Method
1. AF level
setting <PC>
1) Test Channel: 1
Test Signaling Mode:
Analog Signaling 1
2) SSG output: -47dBm (1mV)
(MOD: 1kHz/±1.5kHz)
SSG
AF VM
Dummy load Volume
knob Turn the Volume knob to obtain
0.63V AF output. 0.63V±0.1V
<Panel>
1) CH-Sig: 1-1
2) SSG output: *Same as above
2. IQ Phase <PC>
1) Adj item: [IQ Phase]
2) SSG output: -53dBm (500

V)
(MOD:OFF)
Freq: Tune Freq +8kHz
3) Adj points: 5 points
[8RX/TA L], [8RX/TA C],
[8RX/TA H], [9RX/TA L],
[9RX/TA H]
SSG [+], [-] [Automatic Adjustment]
After input signal from SSG,
1) Press [Autotune] button.
2) Press [Apply] button to store the
adjustment value after the
automatic adjustment has
finished.
<Panel>
1) Adj item: [An IQ]
2) SSG output: *Same as above
3) Adj points: *Same as above
[

], [

] After input signal from SSG,
increase or decrease the
adjustment value so that the RSSI
indicator level becomes minimum.
3. RSSI
Reference
[DSP
(Receive)] <PC>
1) Adj item: [RSSI Reference
(Analog Narrow) 1 DSP
(Receive)]
2) SSG output: 12dB SINAD level
-3dB (MOD: 1kHz/±1.5kHz)
3) Adj points: 5 points
[8RX/TA L], [8RX/TA C],
[8RX/TA H], [9RX/TA L],
[9RX/TA H]
SSG
Distortion
meter
Oscilloscope [+], [-] After input signal from SSG;
Press [Acquire Monitored Value]
button and then press [Apply]
button for
<PC> , or press [ ]
button for < Panel> , to store the
adjustment value.
<Panel>
1) Adj item: [An RSSI 1]
2) SSG output: *Same as above
3) Adj points: *Same as above
[

], [

]
[RF IC
(Receive)] <PC>
1) Adj item: [RSSI Reference
(Analog Narrow) 2 RF IC
(Receive)]
2) SSG output: 12dB SINAD level
-3dB (MOD: 1kHz/±1.5kHz)
3) Adj points: 5 points
[8RX/TA L], [8RX/TA C],
[8RX/TA H], [9RX/TA L],
[9RX/TA H]
SSG
Distortion
meter
Oscilloscope [+], [-] After input signal from SSG;
Press [Acquire Monitored Value]
button and then press [Apply]
button for
<PC> , or press [ ]
button for < Panel> , to store the
adjustment value.
<Panel>
1) Adj item: [An RSSI 2]
2) SSG output: *Same as above
3) Adj points: *Same as above
[

], [

]