Kenwood NX-3220 K Service Manual page 178

NX-3320
Receiver Section
RF (Center Frequency)
5
-120.0dBm -121.0dBm -121.5dBm
ANT D201
D202
C246 D203 C344
ANT
LPF
SW
4
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.)
3
Transmitter Section
AF (1kHz)
12.5mVrms
2
INTM_M IC601
Internal MIC
CODEC
EMC
External MIC
1
A B
-107.5dBm
-122.0dBm
C311
HPF
IC303
C334
HPF Transceiver IC
C195
-5dBm~+5dBm
VCO
AF (1kHz)
84mVrms
-5~5dBm
(Mod)
IC401 C345
VCO
MPU/ IC303
DSP
Transceiver IC
C
(No.RA053<Rev.001>) 2-12
AF (1kHz)
5.65Vp-p
IC601
IC401
MPU/DSP
CODEC
IC650
C683
RF (Center Frequency)
2dBm 14dBm
(Local)
C195
C218 IC202 C225 Q201
Pre-
Drive
Drive
D E
2-12 (No.RA053<Rev.001>)
CN604
CN605
Internal Speaker
External Speaker
38dBm
25dBm 38dBm
D201
D202
C237 Q202 C227 D203 C246
ANT
Final
SW
* Transmit frequency : 485MHz
F
5W
ANT
LPF
G