NX-720H(G)/720H
81
LEVEL DIAGRAM
Q201
Mixer
VCO
ASIC
IC507
Q305
IF Amp
IC711
SUM
3.6Vrms 3.24W
C347
C361
XF1
MCF
IC303
FM IC
CF2
CF
C216
C254
LNA
Q202
C774
Q102
D17
RXLO
D16
–11
9
.5dBm
–120.0dBm
–121.0dBm
–107.0dBm
5.2mVrms
(at MIC terminal)
75.0mVrms
2.6dBm
2.6dBm
IF1 (4
9
.
9
5MHz)
RF (Center Frequency)
RF (Center Frequency)
AF (1kHz)
C262
C8
9
C136
IC711
C704
C343
IC507
-62.0dBm
IC507
ASIC
C746
186.2mVrms
186.2mVrms
226.1mVrms
58.0mVrms
DSP
IC502
15dBm
AF (1kHz)
IF2 (450kHz)
IC714
Audio Amp
IC703
C706
251.0mVrms(W)
125.4mVrms(N)
IC712
DAC
C806
21.46mVrms
101.2mVrms
246.1mVrms(W)
123.5mVrms(N)
VCO
IC701
ASIC
C51
9
4.
9
mVrms(W)
47.5mVrms(N)
C104
IC102
Drive
T/R SW
Final IC
To make measurements in the AF section,connect the AC level meter. (ANT input:–53dBm, 1kHz FM, 3kHz DEV (Wide))
In the RF section, use a 1000pF coupling capacitor.
(The display shows the SSG input value required to obtain 12dB SINAD without local level.)
D110
RX in
LPF
ANT- SW
50W
FWD/REV
Detector
CPL
–114.5dBm
MIC input : 3kHz DEV.(Wide), 1.5kHz DEV.(Narrow) at 1kHz MOD.
Transmitting frequency : Center frequency
Receiver Section
Transmitter Section
Содержание Nexedge NX-720H
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