Sony CFD-E75 - Block Diagram - MAIN Section

CFD-E75
2121
6-3. BLOCK DIAGRAM – MAIN Section –
REC/PB EQ AMP
IC301
POWER
AMP
IC390
: CD PLAY
: TUNER (FM/AM)
: TAPE PLAY
: TAPE RECORD
SHIFT
CLK
Q804
Q803, 804
SHIFT CLOCK
Q803
X801
4.19MHz
R-CH
L IN
L OUT
VREF
L.LO
MIC IN
L.CD
L.RAD
VREF
VREF
TC 6V
L.IN
L-CH
R-CH
XTAL EXTAL
LINE TAPE REC
29
32 31 23 24
R-DATA
R-CLOCK
R-CE
R-COUNT
TU-DATA
TU-CLK
TU-CE
TU-COUNT
66
68
69
78
17 15 21
6
20
11
5
L.RO
4
22
24
13
TU IN L
R-CH
R-CH
MUTE
MUTE
CN303 (1/3)
3
HRP301
(REC/PB)
HE301
(ERASE)
TAPE
67
TC-REC
79
B
FROM TUNER
SECTION
(Page 20)
TO TUNER
SECTION
(Page 20)
C
TC BOARD
POWER BOARD (1/2)
PB
EQ AMP
MONITOR
AMP
5
POWER
AMP
STANDBY
SWITCH
MIC
AMP
REC
EQ AMP
BIAS OSC
Q301
REFERENCE VOLTAGE
GENERATOR
LOGIC CIRCUIT
DET
ALC
BUFFER
BUFFER
T301
BIAS OSC
3
4
6
1
CN322
(1/2)
13
3
12
1
CNP392
(L-CH)
(R-CH)
1
2
J301
(HEADPHONE)
i
4
3
X802
32.768kHz
TX
TEX
73
74
SYSTEM CONTROLLER
IC801 (2/3)
CN321 (2/2)
9
7
10
OPR/BATT B+
CNP802
S301 (2/2)
(REC/PB)
STANDBY
V-DATA
V-CLOCK
A-MUTE
BUZZER
7
12 13
16
3
RECPB
S301 (1/2)
(REC/PB)
RECPB
+
OPT/BATT LED
BOARD
117
117
CNP322 (4/4)
CN303 (3/3)
8
2
TU-MUTE
70
11
R-MUTE
VT
TC POWER
B+
D321
1
CD IN L
A
FROM CD
SECTION
(Page 19)
CD B+
CN303
(2/3)
5
CNP322
(3/4)
5
MAIN BOARD (3/4)
AF AMP
Q120
8
R-CH
LOGIC
CONTROL
4 5
7
ELECTRICAL VOLUME
IC320
Q122
MUTING
R-CH
BEEP H/L
71
MEGA
BASS
15
26
JOG-A
25
JOG-B
BUZZER H/L
CONTROL
Q431
5
3
4
6
1
5
KEY POWER BOARD
CN401
5
4
1
2
2
CNP401
CNP402
S401
POWER
S402
STANDBY
RADIO BAND
AUTO PRESET
S403
m
TUNE
–
M
TUNE
+
S404
S405
2
1
CN403
2
1
CN404
ROTARY
ENCODER
RE401
(JOG DIAL)
MENU
ALARM
S407
DSPL
ENT MEM
S406
2
CN402
JOG BOARD
S401 – 405
S406, 407
S408 – 413
KEY VOLUME BOARD
S408
x
S409
u
S413
MODE
S412
MEGA BASS
S410
VOLUME –
S411
VOLUME +
D401
OPR/BATT
MEGA BASS
CONTROL
Q291
D390
D320
D394
TC POWER
B+
• R-ch is omitted due to same as L-ch.
• SIGNAL PATH
KEY-1 KEY-2
VIN2
VOUT2
DATA CLOCK