A
1
2
3
4
5
B
C
D
E
F
G
(No.RA053<Rev.001>) 2-11
2-11 (No.RA053<Rev.001>)
Receiver Section
RF (Center Frequency)
AF (1kHz)
D201
C311
CN604
ANT
D205
IC601
CN605
D202
C246 D203 C344
C334
IC303
IC401
Internal Speaker
IC650
C195
External Speaker
C683
To make measurements in the AF section, connect the AC level meter.
(ANT input: –53dBm, 1kHz FM, 3kHz DEV (Wide). SP output: 500mW@8ohm Load)
In the RF section, use 470pF coupling capacitor.
(The display shows the SSG input value required to obtain 12dB SINAD.)
Transmitter Section
AF (1kHz)
AF (1kHz)
RF (Center Frequency)
(Mod)
(Local)
INTM_M
IC601
IC401
C345
C195
D201
Internal MIC
D205
D202
IC303
C218
IC202
C225
Q201
C237
Q202
C227
D203 C246
EMC
External MIC
* Transmit frequency : 155MHz
LPF
ANT
SW
HPF
Transceiver IC
VCO
MPU/DSP
CODEC
-121.5dBm
-123.0dBm
-123.5dBm
5.65Vp-p
CODEC
MPU/
DSP
Pre-
Drive
Drive
Final
LPF
ANT
SW
12.5mVrms
3dBm
14dBm
25dBm
38dBm
38dBm
5W
HPF
-107.5dBm
-5dBm ~ +5dBm
-122.5dBm
Transceiver IC
VCO
78.9mVrms
-5~5dBm
LEVEL DIAGRAM
ANT
NX-3220