A
1
2
3
4
5
B
C
D
E
F
G
(No.RA077<Rev.001>) 2-10
2-10 (No.RA077<Rev.001>)
RF (Center Frequency)
AF (1kHz)
D101
C224
ANT
D102
IC302
D103
IC603
C168
D104
C201
C209
C216
IC200
IC501
Internal Speaker
C633
IC300
External Speaker
To make measurements in the AF section, connect the AC level meter.
In the RF section, use 470pF coupling capacitor.
(The display shows the SSG input value required to obtain 12dB SINAD.)
AF (1kHz)
RF (Center Frequency)
IC602
IC501
D101
MIC
D102
ANT
IC200
D103
C100
C108
Q104
C122
Q106
C131
Q107
C164
D104
C168
* Transmit frequency : 155MHz
LPF
ANT
MPU/DSP
MPU/
DSP
FINAL
LPF
ANT
5W
VCO
Q5
Q6
Transceiver
IC
Q100
■
Receiver Section
-122.0dBm
-121.5dBm
-121.0dBm
-123.5dBm
-119.5dBm
-110.0dBm
SW
VCO
40mVrms
HPF
BPF
RF
AMP
BPF
15mVrms
30mVrms
-3.5dBm
5dBm
12dBm
23dBm
38dBm
38dBm
■
Transmitter Section
Q4
VCO
BUFF
VCO
BUFF
Q200
BUFF
AMP
AF
AMP
FIL
MIC
AMP
PRE-
DRV
DRV
AMP
Transceiver IC
SW
AF AMP
AF AMP
(ANT input: -53dBm, 1kHz FM, 1.5kHz DEV (Narrow). SP output: 0.63Vrms@8ohm Load)
C88 -15dBm ~ -5dBm
-15dBm ~ -5dBm
2.02Vp-p
2.15Vp-p
TX-RX UNIT (NX-1200 Series)
LEVEL DIAGRAM