Read Sony ICF-C1200 Service Manual online
7
7
ICF-C1200
4-2. BLOCK DIAGRAMS
• Signal path.
F
: Analog
f
: Digital
• Abbreviation
JE
: Tourist
D401
BAT401
RV201
T101
X301
KS1
KS2
KS3
KR1
KR2
KR3
T401
Q104
D106
D107
RV101
Q103
D402
Q101
D101
D103
D104
D102
CF102
CF103
CF101
J201
D303
D304
Q201
Q202
PAS
75kHz
BAND
SELECT
AM_IF
IN
IN
FM_IF
IN
IN
L_CH
R_CH
REG
FM_OSC
AM_OSC
MPX REG
PLL
LPF
FM/AM
DET,FM MPX
FRONT-END,IF AMP,
TELESCOPIC
ANTENNA
SPEAKER
AM
IF
VCO
COVERAGE
AM FREQUENCY
FM FREQUENCY
COVERAGE
AM TRACKING
FM/AM
FE OUT
FM RF IN
AM RF IN
FM RF
PILOT
DET
LPF2
CT101
HOLD SW
POW
ER
BEEP
MUTE
WAKEUP
BAND
INTR1
INTR2
FM
IN
AM
IN
DO2
VDET
ID
ID
AL SW1
AL SW2
AL SW3
AL SW2
AL SW3
LIGHT
RESET
XOUT
XIN
SP BEEP
ST/M
O
DISPLAY
LIQUID
CRYSTAL
FERRITE-BAR
AM
ANTENNA
L102
CT102
FM TRACKING
L102,CT101
L105
LCD301
VOL
AM
AM
OSC
FRONT-END
OSC
FRONT-END
FM
FM
VREF
AM
OSC
L105
OSC
L104
L104
VREF
LPF1
VCO
MPX
REG
REG
MPX,
DECODER
AMP
FM IF/
DISCRI
DISCRI
AM IF/
DET
DET
PILOT
S22
S1
COM
0
COM
4
VCC
AM
RF
FM
FM
RF
RF
( )
( )
( )
( )
L103,CT102
L103
+
SP101
ANT101
IN1
REG
VOL
OUT1
OUT2
IN2
SYSTEM
CONTROL
BUFFER
DC-DC
CONVERTER
Q401,402
LED DRIVER
LCD
BACK LIGHT
D301,302
( )
SPEAKER
BEEP
BEEP
+B SWITCH
Q403,404
DETECT
DETECT
1.1V VOLTAGE
1.9V VOLTAGE
DETECT
2.1V VOLTAGE
RESET
POWER AMP
VOL,
DRY BATTERY
2PCS,3V
ON
OFF
HOLD
(IEC DESIGNATION R03)
SIZE"AAA"
BATT
VCC
BACK
UP
+1.5V REG
(+1.2V)
IC401
S311
ALARM
MODE
OFF
RADIO
BUZZER
KEY MATRIX
S302-310
LPF
Q102
REG
VOL
POWER AMP
POWER AMP
Q203,204
GATE
Q206
BATT
REG
IC201
Q303
AEP,E
US,JE
US,AEP,E
JE
BACK UP
-
-
1
4
5
26
BACK UP
Q205
BACK UP
BATT
BATT
IC301
IC305
IC304
IC302
IC303
IC101
Q302
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