Sony CFD-E77L Service Manual ▷ View online
34
34
CFD-E77L
6-17. PRINTED WIRING BOARDS – POWER SUPPLY Section –
•
See page 23 for Circuit Boards Location.
D390
D-18
D391
D-16
D392
D-15
D393
D-16
D394
C-15
D901
F-13
D902
F-12
D903
F-12
D904
F-12
D905
I-18
D906
I-18
D907
D-12
D908
D-12
JW923
JW925
JW924
CN901
TP901
TP905
JW921
JW926
TP904
JW914
TP912
TP911
CNP902
D904
D393
C197
Q291
JW908
JW912
JW904
C296
C297
JW909
JW913
R903
C295
JW901
C397
L190
JW906
C393
Q392
C392
CNP901
JW910
C399
C911
F901
Q391
C291
C193
C293
R394
JW907
Q390
C195
C395
JW911
L290
CNP392
C191
C910
IC390
D902
D901
D903
J301
CNP391
Q191
JW903
L391
C196
R296
R196
C294
R297
C194
D392
D907
R197
R193
D910
Q393
R395
R392
R393
R391
C394
R396
C391
R198
R398
R397
C398
D390
C290
R390
C904
C902
C901
C903
R293
R190
R290
C190
D391
C292
C192
R191
R291
R294
R194
D909
D906
R902
C907
R901
C906
C905
D905
D908
D394
J901
CN902
TP914
TP913
R298
D913
D914
JW922
TP902
TP903
JW927
JW926
BATY B BOARD
BATY A BOARD
BACK-UP BOARD
1-681-677-
13
(13)
1-681-676-
13
(13)
1-681-678-
13
(13)
DRY BATTERY
SIZE “D”
(IEC DESIGNATION)
6PCS. 9V
DRY BATTERY
SIZE “AA”
(IEC DESIGNATION)
3PCS. 4.5V
1
2
POWER BOARD
1-681-671-
13
(13)
C
MAIN BOARD
CN322
F
MAIN BOARD
CN322
T901
POWER TRANSFORMER
(L-CH)
(R-CH)
1
2
3
4
AC INLET BOARD
~AC IN
1-681-679-
13
(13)
C
D
E
F
G
H
I
J
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
A
B
1
3
1
3
2
2
1
3
2
1
2
Ref. No.
Location
Ref. No.
Location
• Semiconductor Location
D909
C-12
D910
C-12
D913
F-8
D914
G-8
IC390
D-14
Q191
E-17
Q291
E-17
Q390
D-17
Q391
D-16
Q392
D-17
Q393
C-18
(Page 29)
(Page 29)
35
35
CFD-E77L
Q191
R197
C197
R198
C297
R297
Q291
R296
R196
C393
C392
R392
D391
D392
R394
D393
C395
C394
C391
R393
R903
C907
C906
C397
C191
C192
C292
C291
C196
D390
R291
L391
1
1
µ
H
R194
R294
R390
R395
D394
C290
C190
D908
D910
D907
C910
CNP901
R391
CNP392
CNP902
CN902
R191
C911
C296
R396
Q392
J301
T901
D905
D906
Q393
Q391
Q390
IC390
C398
R398
C399
R290
R190
C194
C294
C195
C295
R193
R293
L190
1
1
µ
H
L290
1
1
µ
H
C905
D909
J901
D913
D914
CN901
R901
R902
R397
CNP391
F901
R298
C901
C903
C904
C902
D902
D904
D903
D901
C293
C193
KTC3198GR-AT
15k
0.47
50V
1k
0.47
50V
15k
KTC3198GR-AT
470
470
100
10V
10V
220
10V
10V
150
1SS355TE
-17
UDZ-TE-17
-6.8B
150
MTZJ-6.8B
220
10V
10V
0.01
0.01
10
1
0.1
0.1
220
10V
47
10V
2200p
2200p
47
10V
1
50V
1SS355TE-17
2.2
100
100
47
1k
1SS355TE
-17
100p
100p
UDZ-TE-17-2.7B
RB441Q-40-T77
1SS355TE
-17
4700
16V
3P
100
4P
3P
3P
2.2
10
50V
1
50V
47k
KTA1271Y-AT
1SS355TE-17
1SS355TE-17
DTC114EKA-T146
KTC2026Y
KTC2026Y
BA5417
0.22
470k
22
25V
220
220
0.022
0.022
2200
10V
2200
10V
3.3k
3.3k
0.1
1SS355TE-17
1SS355TE-17
1SS355TE-17
3P
100
100
2.2k
10P
2.5A
250V
1k
1
1
1
1
2A02M
2A02M
2A02M
2A02M
220
10V
10V
220
10V
10V
R-OUT
L-OUT
A-GND
AU 6.2V
P-CON
AC-HI
TC 9.0V
COM VCC
CD 6.2V
MOT-GND
D-GND
S-GND
M/B-CONT
(L-CH)
(R-CH)
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)
POWER TRANSFORMER
POWER ON/OFF
CONTROL
CD +6.2V
REGULATOR
REGULATOR
+6.2V
B+ SWITCH
POWER AMP
CONTROL
MEGA BASS
Q191,291
1
3
~
AC IN
• TOTAL CURRENT
RADIO FM : 140mA
MW/LW : 135mA
CD STOP : 235mA
PLAY : 390mA
TAPE STOP : 115mA
PLAY : 190mA
RECORD : 205mA
FF/REW : 195mA
6-18. SCHEMATIC DIAGRAM – POWER SUPPLY Section –
• Voltages are dc with respect to ground under no-signal
(detuned) conditions.
no mark : TUNER (FM/MW/LW)
no mark : TUNER (FM/MW/LW)
Note: The components identified by mark
0
or dotted line
with mark
0
are critical for safety.
Replace only with part number specified.
(Page 30)
(Page 30)
36
36
CFD-E77L
• IC Block Diagrams
– CD Board –
– CD Board –
IC701
LC78645NE-U
• Waveforms
– CD Board –
– CD Board –
1
IC701
4
(RF) (CD Play Mode)
2
IC701
qd
(FE) (CD Play Mode)
3
IC701
qg
(TE) (CD Play Mode)
4
IC701
rk
(XOUT)
8
IC801
ud
(TX)
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)
1.4 Vp-p
13.3
µ
s
– TC Board –
6
T301
33.6 Vp-p
17.2
µ
s
– MAIN Board –
7
IC801
es
(XTAL)
3.4 Vp-p
239 ns
3.6 Vp-p
30.6
µ
s
AUDIO
OUT
+
–
+
–
+
–
+
–
–
+
–
–
+
–
–
+
–
–
PLL VCEC
CLV, CAV
CONTROL
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
80
79
78 77 76 75 74 73
72 71 70
69 68
67
66
65 64 63 62 61
21 22 23 24
25
26
27
28 29 30
31 32
33
34
35
36 37 38 39 40
SLICE LEVEL
CONTROL
APC
LEVEL SET
MIX
EQ
AGC
LPF
TBAL
TBAL
+
BH
SW
PH
+
–
–
VREF
+
LPF
LPF
VREF
AUTO
ADJUST
MONITOR
CONTROL
CONTROL
JITTER
DETECT
A/D
S/H
D/A
SW
GENERAL-PURPOSE
PORTS
MONITOR SIGNAL SELECTOR
SERVO
PROCESSOR
SUBCODE
DECODE CRC
FRAME SYNC
DETECT,
PROTECT INSERT,
EFM DECODE
DRF
COMMAND INTERFACE
RUPTURE
DEFECT
TRACK
JUMP
INTERPOLATION
MUTE
ATTENUATION
DEEMPHASIS
LPF
1BIT DAC
8FS
DIGITAL FILTER
ERROR
CORRECTION
AUDIO CD
C1-2, C2-2
RAM
CLOCK
GENERATOR
EXTERNAL
AUDIO IN
SERIAL
OUT
LDD
LDS
FR
VVDD
PCKIST
VVSS
PDO2
PDO1
CONT1
CONT2
CONT3
VSS
VDD5
DRF
*
RES
*
WRQ
DO
DI
CL
CE
DATA
DATACK
LRSY
ASDFIN
ASDACK
ASLRCK
16MOUT
EFLG
C2F
XVSS
FSX/16MIN
XIN
XOUT
XVDD
RVDD
RCHO
RVSS
LVSS
LCHO
LVDD
TEST
BOUT
VDD
VSS
MONI5
MONI4
MONI3
MONI2
MONI1
FSEQ
V/
*
P
DEFECT
SBCK/FG
SBCK/CONT6
CONT5
CONT4
GPDAC
SLDO
SPDO
FDO
TDO
ADAVSS
ADAVDD
JITTC
RFMON
TE
TEC
FE
REF1
VREF
TIN2
TIN1
FIN2
FIN1
RFVSS
RFVDD
RF
EFMIN
SLCIST
SLCO
+
–
+
–
RAM
37
CFD-E77L
RF GND
3
2
1
IF REQ
AM
MIX
FM RFIN
AM LOW CUT
5
4
MIX OUT
VCC
AM IF IN
8
7
6
FM IF IN
GND
10
9
AGC
QUAD
12
11
R-OUT
L-OUT
FM RFOUT
22
23
24
20
21
17
18
19
15
16
13
14
AM RFIN
RF VCC
FM OSC
ST LED
OSC OUT
AM OSC
IF REQ
LPF1
MPX IN
DET OUT
LPF2
FM
MIX
FM
OSC
LEVEL
DET
AM
DET
MUTE
FM
DET
ST/MO
FM/AM
AM
OSC
AGC
SW
ST
1/8
BUFF
BUFF
DIVIDE
DECODE
VCO
IF BUFF
AF BUFF
AF
FM RF
AM IF
FM IF
1/1 OR
1/16
–
+
+
VCC
28
27
26
25
24
23
22
21
20
19
18
17
16
15
LEVEL
SHIFT
–
+
+
VCC
LEVEL
SHIFT
+
–
–
1
2
3
5
6
7
8
9 10
11
12
13 14
LEVEL
SHIFT
+
–
–
+
–
DRIVE
BUFFER
DRIVE
BUFFER
DRIVE
BUFFER
DRIVE
BUFFER
REGULATOR VOLTAGE DETECT,
BIAS VOLTAGE DETECT,
THERMAL SHUT DOWN
4
–
+
+
DRIVER
MUTING
GND
OUT4-B
OUT4-A
IN4
IN4'
VREFIN
VCC
VCC
IN3'
IN3
OUT3-A
OUT3-B
NC
OPIN-B
OUT1-B
OUT1-A
IN1
RESET
REG-B
REGOUT
MUTE
GND
IN2'
IN2
OUT2-A
OUT2-B
GND
OPOUT
LEVEL
SHIFT
– TUNER Board –
IC1
TA2149N
IC702
BA6998FP
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