-11-
SCHEMATIC DIAGRAM -1/1
OPE/BATT
PHOTO SENSOR
VR101
VOLUME
BATT CHECK
P-SENSOR
DRIVER
YTLPF
YTLPF
FM TRACKING ADJ.
L202
FM VT ADJ.
200p
BATTERY
SUM3x2
(DC 3V)
GOV
DRIVER
RADIO ON/BAND
MODE
/SET
HOLD
L203,TC201
AM TRACKING
ADJ.
AM IF ADJ.
HI SPEED SW
MOT-CH SW
8.8k
2.2K
DISPLAY
SFR401
TAPE SPEED ADJ.
J351
DC 3V
J101
PHONES
M1
(MOTOR)
PH
POWER SW
RX228 ONLY
RX228 ONLY
RX228
ONLY
RX128
ONLY
POWER
SW
YL ONLY
YJ,YH ONLY
P-SENSOR SW
RX128
ONLY
RX128
ONLY
RX228
ONLY
YL,R128YJ
15P
18P
YZ, RX228 YJ,YH
22P
22P
C505
C506
1
2
3
4
SIGNAL
:FM/PB
:AM
SYSTEM CONTROL
LCD DRIVER
FM RF OUT
RF VC
AM RF IN
FM OSC
AM OSC
OSC OUT
ST
LED
IF REQ
DET
OUT
MPX IN
LPF1
LPF2
L-OUT
PRE
GRAND
INA
VREF
INB
NFB
PRE
OUT
B
PW INB
RF IN
PRE
MUTE
GVN VCC
RT
GVN
CTL
GVN
OUT
PW VCC
NF
A
PRE
OUT
A
PW INA
VCTL
OUT
B
OUT
A
OUT
C
PW INC
PW GND
GVN GND
R-OUT
QUAD
AGC
GND
FM IF IN
AM IF IN
VCC
MIX OUT
AM LOW CUT
FM RF IN
RF GND
AM/FM RF IF AMP
L202
L205
L.V. STOP
F.
B
CONTROL
REF
. VOL
,
d u
p a
t o r
