A
1
2
3
4
5
B
C
D
E
F
G
(No.RA015<Rev.001>) 2-6
2-6 (No.RA015<Rev.001>)
Receiver section
RF (Center Frequency)
1st IF (49.95MHz)
AF (1kHz)
ANT
D350
C352 D371 C549
C541 Q530 C533
C511 Q500 C558 XF670 C676 Q670 C670 Q660 C660
IC702
IC902
C926
IC904
SSI
Internal Speaker
RFAMP
MCF
IFAMP
IFAMP
IC600
C927
RX PLL
C932
IC905
External Speaker
To make measurements in the AF section, connect the AC level meter.
(ANT input: –53dBm, 1kHz FM, 1.5kHz DEV (Narrow). SP output: 500mW@8ohm Load)
C933
In the RF section, use 470pF coupling capacitor.
(The display shows the SSG input value required to obtain 12dB SINAD.)
Transmitter section
AF
AF (1kHz)
(1kHz)
RF (Center Frequency)
INTM_M
IC906
IC902
IC702
IC902
Internal MIC(Main)
ANT
INTM_S
Q160
L186
Internal MIC(Sub)
C130
Q180
C183
L185
C304
IC300
C313
Q310
C322
Q320
C330
Q330
C347
C352
SSI
SSI
EMC
External MIC(Main)
SMIC
To PLLIC
External MIC(Sub)
LPF
ANT
BPF
BPF
BPF
IFIC
CODEC
-119dBm
-121.5dBm
-122dBm
-112dBm
-110dBm
-116dBm
-102dBm
226mVp-p
CODEC
CODEC
VCO
Coupler
Pre -
Pre -
Drive
Final
LPF
ANT
12.5mVrms
11.6mVrms
f1:173mVrms
f1:-4dBm
5W
-105 dBm
D370
Drive1 Drive2
SW
SW
f2:123mVrms
f2:-2dBm
f1:-7dBm
f2:-10dBm
f1:+7dBm
f2:+5dBm
f1:+18dBm
f2:+12dBm
f1:+20dBm
f2:+25dBm
f1:+37.8dBm
f2:+37.8dBm
f1: F2,F3,K2,K3
(Center frequency: 485MHz)
f2: F5,F6,K5,K6
(Center frequency : 425MHz)
LEVEL DIAGRAM