Kenwood NX-720 Service Manual page 51

Item
Panel tuning mode
This adjustment
2. Sensitivity
1 can be performed
only PC test mode.
This adjustment
3. Sensitivity
2 can be performed
only PC test mode.
4. RSSI 1) Adj item: [RRSS]
reference Adjust: []
*5 2) Adj item:
[R.RSS]
[Analog [R.R.SS]
Narrow] [R.R.S.S]
[R.R.S.S.]
[R.R.S.S._.]
SSG output: 12dB
SINAD level -3dB
(MOD: 1kHz/±1.5kHz)
[Analog 1) Adj item: [RRSS]
Wide 4k] Adjust: []
2) Adj item:
[R.RSS]
[R.R.SS]
[R.R.S.S]
[R.R.S.S.]
[R.R.S.S._.]
SSG output: 12dB
SINAD level for
Analog Narrow
-3dB
(MOD: 1kHz/±2.4kHz)
[Analog 1) Adj item: [RRSS]
Wide 5k] Adjust: []
2) Adj item:
[R.RSS]
[R.R.SS]
[R.R.S.S]
[R.R.S.S.]
[R.R.S.S._.]
SSG output: 12dB
SINAD level -3dB
(MOD: 1kHz/±3kHz)
ADJUSTMENT
Condition
PC test mode
equipment
1) Adj item: SSG
[Sensitivity 1] AF VM
2) Adj item: [Low], 4
[Low'], [Center], Dummy
[High'], [High] load
Press [Apply All] Distortion
button to store the meter
adjustment value. Oscillo-
scope
1) Adj item: SSG
[Sensitivity 2] AF VM
2) Adj item: [Low], 4
[Low'], [Center], Dummy
[High'], [High] load
Press [Apply All] Distortion
button to store the meter
adjustment value. Oscillo-
scope
1) Adj item: SSG
[RSSI Reference AF VM
(Analog Narrow)] 4
2) Adj item: [Low], Dummy
[Low'], [Center], load
[High'], [High] Distortion
SSG output: 12dB meter
SINAD level –3dB Oscillo-
(MOD: 1kHz/±1.5kHz) scope
1) Adj item:
[RSSI Reference
(Analog Wide 4k)]
2) Adj item: [Low],
[Low'], [Center],
[High'], [High]
SSG output: 12dB
SINAD level for
Analog Narrow
–3dB
(MOD: 1kHz/±2.4kHz)
1) Adj item:
[RSSI Reference
(Analog Wide 5k)]
2) Adj item: [Low],
[Low'], [Center],
[High'], [High]
SSG output: 12dB
SINAD level –3dB
(MOD: 1kHz/±3kHz)
Measurement
Test-
Unit Terminal Unit
ANT
Ext.SP
con-
nector
ANT
Ext.SP
con-
nector
ANT
Ext.SP
con-
nector
NX-720(G)/720
Adjustment
Parts Method
[PC test Write the value as Increase the adjust-
mode] followings, ment value from the
[Low]: 61 (Preset) preset value to get
[ ],
[Low']: 85 (Preset) 12dB SINAD.
[ ]
[Center]: 103 (Pre- SSG output: -119dBm
set) (0.25uV)
[High']: 122 (Pre- (Mod: 1kHz/±1.5kHz)
set) Note:
[High]: 152 (Pre- The fi xed value of
set) Sensitivity 2 must be
written before adjust-
ing Sensitivity 1.
[PC test Write the value as
mode] followings,
[Low]: 48 (Fixed)
[ ],
[Low']: 75 (Fixed)
[ ]
[Center]: 104
(Fixed)
[High']: 132 (Fixed)
[High]: 187 (Fixed)
[Panel tuning mode]
After input signal
from SSG, press
[ ] key to store
the adjustment
value.
[PC test mode]
After input signal
from SSG, press
[Apply] button to
store the adjust-
ment value.
Specifi cations/
Remarks
51