Level Diagram - Kenwood NX-820G Quick Start Manual

Receiver Section
RF (Center Frequency)
–119.0dBm
–119.5dBm
C296 C263
186.2mVrms 186.2mVrms
SUM
ASIC
C746
IC507
IC711
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.)
Transmitter Section
5.2mVrms
(at MIC terminal)
74.6mVrms
C774
IC703
-1.4dBm
T/R SW
VCO
D17
C89
D16
RXLO
MIC input : 3kHz DEV.(Wide), 1.5kHz DEV.(Narrow) at 1kHz MOD.
Transmitting frequency : Center frequency

LEVEL DIAGRAM

–114.0dBm
LNA
Mixer
C216
Q201
Q202
AF (1kHz)
226.1mVrms 101.2mVrms
DAC
C704
IC711
IC712
349.0mVrms(W)
174.4mVrms(N)
IC502
57.8mVrms
DSP
ASIC
C706
IC507
RF (Center Frequency)
1.4dBm 13dBm
Pre-Drive Drive
C104
C136
Q101
Q102
NX-820(G)/820
IF1 (49.95MHz)
–121.0dBm –107.5dBm
IF Amp
MCF
C361 C347
XF1
Q305
21.5mVrms
Audio Amp
3.6Vrms 3.24W
C806
IC714
AF (1kHz)
345.0mVrms(W) 74.9mVrms(W)
39.9mVrms(N)
172.3mVrms(N)
C55
IC701
32dBm
Final IC
ANT- SW
D110
IC102 LPF
RX in
IF2 (450kHz)
-63.5dBm
FM IC CF ASIC
C343
IC303 CF2 IC507
VCO
25W
CPL
FWD/REV
Detector
81