Sony CFD-E75 Service Manual ▷ View online
CFD-E75
21
21
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
XT
AL
EXT
AL
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)
ST
ANDBY
V
-D
ATA
V
-CLOCK
A-MUTE
BUZZER
7
12 13
16
3
REC
PB
S301 (1/2)
(REC/PB)
REC
PB
+
OPT/BATT LED
BOARD
11
7
11
7
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
CFD-E75
22
22
6-4.
BLOCK DIAGRAM – POWER SUPPLY Section –
2
42
–
61
SEG0
–
SEG19
38
–
41
COM0
–
COM3
RMC
18
CD
65
RADIO
19
P-CON
30
RST
21
REG CHK
80
TC PLAY
3
10
4
5
ı
24
38
ı
41
26
LIQUID CRYSTAL
DISPLAY
LCD801
AAAA
BBBB
CCCC
BBBB
CCCC
DDDD
REMOTE
CONTROL
RECEIVER
IC804
CNP801
CNP811
LCD BOARD
MAIN BOARD (4/4)
SYSTEM
CONTROLLER
IC801
(3/3)
6
7
5
CN322
(2/2)
CD B+
SWITCH
Q325, 326
CD +3.3V
REGULATOR
Q325, 326
TUNER B+
SWITCH
Q322, 323
RADIO 6V
CD 3.3V
TC 6V,
ELECTRICAL VOLUME (IC320) B+
RMC 5V
COM +3.3V
REGULATOR
IC321
RESET SIGNAL
GENERATOR
IC803
BATTERY
CHECK
Q328, 329
µ
COM B+
OPR/BATT B+,
TC POWER B+
TC POWER B+
D324
D323
D322
5
6
4
3
2
1
M
M
S303
(MOTOR ON/OFF)
M301
(CAPSTAN/REEL)
S304
(TAPE PLAY)
CNP321
TC POWER
B+
8
1
7
5
4
6
CN391
+6.2V
REGULATOR
Q390
B+ SWITCH
Q392, 393
CD 6.2V
CD 6.2V
AU 6.2V
TC 9V
P-CON
COM VCC
AC-HI
POWER AMP
(IC390) B+
CD +6.2V
REGULATOR
Q391
1
3
2
CNP902
1
3
2
RECT
D901 – 904
D905
D906
T901
POWER
TRANSFORMER
1
2
CNP901
3
1
2
3
BATY B BOARD
CN902
J901
- AC IN
POWER BOARD (2/2)
AC INLET BOARD
CN901
BATY A BOARD
DRY BATTERY
SIZE“D”
(IEC DESIGNATION R20)
6PCS. 9V
(FOR POWER SUPPLY)
DRY BATTERY
SIZE“AA”
(IEC DESIGNATION R6)
3PCS. 4.5V
(FOR BACK UP)
BACK-UP
BOARD
CD B+
5
ı
24
38
ı
41
26
CFD-E75
23
23
• Waveforms
– CD Board –
– CD Board –
1
IC701
4
(RF) (CD Play mode)
500 mV/DIV, 1 µs/DIV
2
IC701
qd
(FE) (CD Play mode)
20 mV/DIV, 1 µs/DIV
3
IC701
qg
(TE) (CD Play mode)
20 mV/DIV, 1 µs/DIV
4
IC701
rk
(XOUT)
1 V/DIV, 10 ns/DIV
8
IC801
ud
(TX)
1 V/DIV, 10 µs/DIV
0.85
±
0.2
Vp-p
Approx.
90 mVp-p
90 mVp-p
Approx.
60 mVp-p
60 mVp-p
2.9 Vp-p
29.5 ns
– TUNER Board –
5
IC2
w;
(XOUT)
500 mV/DIV, 5 µs/DIV
1.4 Vp-p
13.3
µ
s
– TC Board –
6
T301 (Tape Record mode)
20 V/DIV, 5 µs/DIV
20 V/DIV, 5 µs/DIV
33.6 Vp-p
17.2
µ
s
– MAIN Board –
7
IC801
es
(XTAL)
1 V/DIV, 100 ns/DIV
3.4 Vp-p
239 ns
3.6 Vp-p
30.6
µ
s
• Circuit Boards Location
KEY POWER board
JOG board
OPR/BATT LED board
TC board
KEY VOLUME board
TUNER board
MAIN board
CD board
BATY A board
BATY B board
BACK-UP board
LCD board
POWER board
AC INLET board
CFD-E75
24
24
6-5.
PRINTED WIRING BOARD – CD Section –
•
See page 23 for Circuit Boards Location.
• Semiconductor
Location
Ref. No.
Location
IC701
C-4
IC702
H-3
Q701
F-5
M702
(SLED)
S701
(LIMIT)
C732
CNP701
X701
CNP702
C702
JW701 JW702
JW703
JW705
JW706
JW707
JW708
JW709
JW713
JW714
JW716
JW717
JW718
JW721
JW722
JW723
JW724
JW725
JW726
JW727
JW728
JW729
JW730
C740
C750
C746
C747
JW719
C735
JW720
JW711
C733
C706
JW712
JW710
JW715
Q701
IC702
C729
C730
R730
R728
R729
C704
R708
C728
R724
R722
R725
R726
R707
C701
C726
C723
C725
C724
R719
R717
R718
R716
C720
C721
C722
R731
R721
R720
C716
R715
R714
C727
C711
C709
FB701
C736
C734
R709
C705
R704
R702
R711
R710
R703
R705
R701
C703
C731
R706
R738
R739
R727
R712
R723
C708
R741
JC701
R743
C751
JC702
JC703
JC705
C743
C744
C745
C742
C754
C755
C741
JC704
C707
R745
L706
C717
R744
IC701
CD BOARD
D
MAIN BOARD
CNP323
M
M
M701
(SPINDLE)
1-680-943-
13
(13)
C
D
E
F
G
H
1
2
3
4
5
6
7
8
A
B
TP
(GND)
TP
(RF)
OPTICAL
PICK-UP
BLOCK
(KSS-213C)
Note on Printed Wiring Board:
•
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
f
: internal component.
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
(Page 29)
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