Sony ICF-CD2000 - Block Diagram - Main Section

ICF-CD2000/CD2000S
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7-3. BLOCK DIAGRAM – MAIN Section –
MUTING
Q103
ANT1
FM/SW TELESCOPIC ANTENNA
10 12 15 21
16
20
2
14
7
5
8
3
(CD2000)
(CD2000S)
(CD2000S)
(CD2000)
D3
D1
B. P. F
BPF1
D12
D13
D8
SW / MW
SWITCH
Q8
RF
AMP
Q1
D9-1
L8
SW
ANTENNA
CT1
CT2
L7
AM (MW)
FERRIRE-ROD
ANTENNA
D10
D9-2
L12
SW
OSC
AM (MW) TRACKING
CT2, L7
D5
RF
AMP
Q3
SW
TRACKING
CT1, L8
D6
AM
RF IN
AM
FRONT-END
FM OSC
FM RF
FM
RF IN
FM
FRONT-END
FM / AM
FE OUT
CF3
10.7MHz
FM / AM FRONT-END
IF DISCRI, IF AMP
IC1 (2 / 2)
T1
AM IF
CF2
450kHz
CF1
10.7MHz
FM / AM FRONT-END
IF DISCRI, IF AMP
IC1 (1/2)
CT3, L14
FM TRACKING
CT3
L14
FM RF
L15
5
10
7
8
9
4
3
2
1
13
20
19
18
17
16
6
11
12
L13
AM (MW) OSC
L13
MW
SWITCH
Q4
SW FREQUENCY
COVERAGE
L12
SW
SWITCH
Q2
AM (MW) FREQUENCY
COVERAGE
(CD2000)
MW
SWITCH
Q6
AM SOC
FM / AM PLL
IC3
FM IN
AM IN
SW / MW
PD
AIN
XIN
AOUT
12BITS
PROGRAM-
MABLE
DIVIDER
PHASE
DETECTOR
CHARGE
PUMP
DATA
SHIFT REGISTER
LATCH
X1
75kHz
XOUT
B04
REFERECE
DIVIDER
CCB
I / F
DO
CL
DI
CE
AM / FM
AM / FM
MO / ST
IF MUT
IF IN
DC / DC
CONVERTER
Q74-76,
T70
FM IF
DISCRI
DET OUT
6
1813
FM
IF IN
FM DISCRI
METER
AM IF
DISCRI
FM / AM
SELECT
BAND
SELECT
AM IF OUT
REG OUT
PILOT
AFC / AGC1
RV2
1
8
Q9
MUTING
Q11
MUTING
MUTING
Q913
IN
SYNC •
DETECTOR
VCO
4
MPX
IC2
VCO
10
9
DECODER
LCH
OUT
RCH
OUT
RV1
FM VCO
B+ (CD3.4V)
TUNER
MUTE
Q311
K
D
R-CH
6 7
MIX AMP
IC302 (1 / 2)
TONE
AMP
IC301 (1 / 4),
IC302 (2 / 2),
IC303 (2 / 2),
Q101, 201, 104,
204, 305
B+
9
10
B+
MEGA BASS
S301
ON
OFF
4
30
BUZ
BEEP MUTE
64 – 67 31 – 40, 43 – 60
COM0 – COM3 S4 – S31
LCD401
(LIQUID CRYSTAL DISPLAY)
D405-408
(LCD BACK LIGHT)
73
LED DRIVE
Q403, 405,
411, 412
LED ON
KEY1 - KEY4
OPEN
LMT
LMT
WRQ
AFC
REG
COIN
CQCK
SQOUT
RWC
D425 (2 /2)
D423 (2 /2)
D424 (2 /2)
D426 (2 /2)
PAUSE
WOK
CNTOK
OVR
XT1 / P74
C2F
EMPN
COIN WRQ COLK SQOUT RWC PAUSE WOK CNTOK OVR SHOCK C2F EMPN
D425 (1 / 2)
D423 (1 / 2)
D424 (1 / 2)
D426 (1 / 2)
BEEP
MUTE
Q401
14 – 17
18
6
26
19
20
78 80 79 77 2 327 22 23 24 8
KEY MATRIX
S402, 403, 421,
422,424, 701-715
S423
OPEN
S401
(OPEN MAIN)
D434
X401
32.768kHz
CF1
11
CDRES
5
XT2 / P75
9
CF2
12
DRF
CDRES
DRF
VZ
25
C B A
X402
3MHz
LEVEL
SHIFT
Q407, 408
MUTING
CONTROL
SWITCH
Q904
D409
29
70CD ON
CD
ON SWITCH
Q410
71TU ON
TUNER
ON SWITCH
Q404
72A MUTE
21BATT
28AC IN
7RES
1SHOCK
74SL-
75SL+
76RCK
AUDIO
MUTE
Q406
D433
3 2
RESET
SIGNAL
GENERATOR
IC403
SYSTEM CONTROLLER,
LCD DRIVER
IC401
6
5
7
LOW-PASS FILTER AMP
IC303 (1 / 2)
7 1
3
RV301
VOLUME
POWER AMP
IC101
HEADPHONE
SWITCH
Q312
R-CH
MUTING
Q102
J301
SP101
SPEAKER
L CH
SP102
SPEAKER
R CH
R-CH
BEEP
MUTE
Q310
B+B+
8
IC301 (2 / 4)
B+
SWITCH
Q907
B+
SWITCH
Q908
B+
SWITCH
Q914
D905
D901
BUZZER
DRIVE
Q402, 415
B+
B+
B+
B+
MUTING
CONTROL
SWITCH
Q910
MUTING
CONTROL
SWITCH
Q909
MUTING
CONTROL
SWITCH
Q308, 309
D102
D428
(1 / 2)
B+
B+
B+
SWITCH
Q905, 912
B+
SWITCH
Q906
3
2
IC301 (3 / 4)
1
RCK
SL+
SL-
B+
J901
D904
D413
D402
D404
D403
B+ B+
B+
BATT
DET
Q413, 414
3 2
+3.3V REGULATOR
IC901
D401
D412
D420
D421
B+
(CD3.4V)
BAT401
LITHIUM
BATTERY
3V
(FOR BACK-UP)
23
+3.4V REGULATOR
IC402
D427
D428 (2 / 2)
D429
D903
G
H
I
J
–
+
DC IN 6V
DRY BATTERY
SIZE "AA"
(IEC DISGNATION R6)
4PCS. 6V
14 13
12
IC301 (4 / 4)
B+
SWITCH
Q301
E
F
STEREO
DET
Q10
• SIGNAL PATH
: FM
: AM (MW)
: CD PLAY
05
SW
SWITCH
Q5
AM
IF IN
FM AUTO
SCAN
SHIFT
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