ICF-CD73/CD73V
20
20
6-4.
BLOCK DIAGRAM – MAIN Section –
: CD PLAY
: TUNER (FM/AM)
B+ SWITCH
Q302, 303
DRY BATTERY
SIZE “C”
(IEC DESIGNATION R14)
4PCS. 6V
DC IN 6V
J901
–
+
PVCC
UCOM B+
POWER
AMP B+
VT B+
AUDIO
CIRCUIT
B+
R-CH
LINE AMP
Q153
D101
•
R-ch is omitted due to same as L-ch.
•
SIGNAL PATH
R-CH
R-CH
R-CH
MUTING
Q101
LINE AMP
Q152
TU LCH
B
CD LCH
C
LIQUID CRYSTAL DISPLAY
LCD401
PLL DATA
PLL CLK
PLL CE
COUNT
MUTE
+
+
POWER AMP
IC303
PLL DATA, PLL CLK,
PLL CE, COUNT, MUTE
WAKE UP
SWITCH
Q401
S607 – 611
S601 – 606
S501 – 503
70
71
X401
32.768kHz
74
75
X402
4.19MHz
D308
D401
DC MIDDLE VOLTAGE
CONTROL SWITCH
Q405
AGC
Q154
AGC CONTROL
SWITCH
Q301
D309
FILTER AMP
Q151
RV601
VOLUME
MUTING
CONTROL SWITCH
Q403
+
R-CH
SP101
(L-CH)
SP201
(R-CH)
+6V
REGULATOR
Q301, 306, 307
DC/DC
CONVERTER
Q304, 305, T301
D402
LOAD CONTROL
SWITCH
Q406