Sony CFD-G30 / CFD-G50 Service Manual ▷ View online
CFD-G30/G50
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– MAIN SECTION –
Note on Printed Wiring Board:
• X
: parts extracted from the component side.
• Y
: parts extracted from the conductor side.
• b
: Pattern from the side which enables seeing.
Note on Schematic Diagrams:
• All capacitors are in µF unless otherwise noted. pF: µµF
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
¢
: internal component.
•
2
: nonflammable resistor.
•
C
: panel designation.
•
H
: adjustment for repair.
•
U
: B+ Line.
• Power voltage is dc 12 V and fed with regulated dc power
supply from battery terminal.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
– For Radio, TAPE section MAIN (1/2) –
no mark : PLAY (TAPE SECTION)
CD STOP
( ) : REC (TAPE SECTION)
[ ]
[ ]
: FM (RADIO SECTION)
< > : AM (RADIO SECTION)
– For CD Section MAIN (2/2) –
no mark : CD PLAY
TAPE STOP
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Signal path.
F
: FM
E
: PB
a
: REC
J
: CD
• Abbreviation
E4
: 220 V-240 V AC area model
E92
: 120 V AC area model
CND : Canadian model
MX
MX
: Mexican model
Note:
The components identi-
fied by mark
The components identi-
fied by mark
!
or dotted
line with mark
!
are criti-
cal for safety.
Replace only with part
number specified.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque
Les composants identifiés par
une marque
!
sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce por tant le numéro
spécifié.
Ne les remplacer que par une
piéce por tant le numéro
spécifié.
1.5Vp-p
500mV/div
10
10
µ
sec/div
13.3us
3.6Vp-p
1V/div
100nsec/div
100nsec/div
250ns
2.0Vp-p
500mV/div
5
5
µ
sec/div
6.5us
32.0Vp-p
1V/div
10
10
µ
sec/div
18.0us
1.1Vp-p
400ns/div
200mV/div
4.0Vp-p
1V/div
20nsec/div
20nsec/div
59ns
1
IC2
w;
2
IC501
ea
3
IC501
uf
5
IC702
ta
6
IC702
yj
4
T301
WAVEFORM
20
B
A
TUNER/CD
SECTION
L OUT
L-CH
R-CH
HRP301
REC/PB
HEAD
HE301
ERASE
HEAD
R-CH
R-CH
L-CH
BIAS
OSC
Q301
PRE AMP
IC301
24
22
5
4
15
21
REC
TAPE
L IN
RADIO
PB AMP
26dB
L
TAPE
TAPE
T301
12
MUTE
Q122
BASS AGC
Q326,327
3
8
STBY
POWER AMP
IC323
R-CH
J391
L
R
SPEAKER
FUNCTION
SWITCH
FUNCTION
SWITCH
S603-607
FUNCTION
SWITCH
POWER
BATT
1.5x8=12V
18
V LATCH
20
V CLOCK
19
V DATA
76
A MUTE
69
TAPE
23
REC
70
RADIO
IC501(2/2)
SYSTEM CONTROL
73
74
32
31
X502
153kHz
X501
4MHz
TX
TEX
XTAL
EXTAL
16
S301
REC
REC
PB
REC AMP
AMP
BUFFER
7dB
17
LINE
79
TC PLAY
M
MOTOR SW B+
M321
(LOADING)
S322
(MOTOR SW)
S321
(PLAY SW)
SWITCH
Q511,512
TUNER/CD
SECTION
LINE
IN
J301
R-CH
D502
6
REF
D501
Q515
D955
21
P CON
KEY1
25
KEY2
26
KEY3
27
S608-611
S601,602
SCL
77
SDA
24
6
5
EEP ROM
IC504
D VDD
71
CD
COM3.3V
SWITCH
Q513,514
RADIO 6V
AUDIO 6V
S IN
13
S IN
14
IN
9
SOUND/VOLUME
IC321
DATA
1
CLK
30
CE
2
21
S OUT
5
L OUT
MUTE
Q321
2
1
5
7
L.P.F
IC322
VDD(S.W)
12
13
3
10
11
5
8
STBY
WOOFER
POWER AMP
IC324
Q322
VDD(S.W)
Q328
Q329
WOOFER
GAIN CONT
Q517
WOOFER
GAIN CONT
Q516
VCC
SWITCH
Q518,519
64
WOOFER 1
63
WOOFER 2
28
LIGHT CONT
LED
DRIVE
Q601
D601
D603,604
AUDIO 6V
LCD651
LIQUID CRYSTAL
DISPLAY PANEL
: FM
: CD
• Signal Path
• RCH is omitted
: PB
: REC
49
42
SEG17
SEG0
41
38
COM3
COM0
SP391
SP392
SP393
WOOFER
T901
S1
J901
~AC IN
RECT
VOLTAGE
SELECTOR
D901-904
BATTRY
CHECK
Q503,504
POWER AMP B+
9V REG
Q954
Q951
6V REG
Q955
3.3V REG
Q956
MOTOR SW B+
AUDIO +6V
COM +3.3V
D952
D958
VDD(S.W)
R VT
D955
D951
D322
POWER
SWITCH
SWITCH
Q952
Q953
D503
LOAD
Q520
2
3
3.3V
REG
REG
IC502
2
1
RESET
IC503
µ
COM(VDD)
D507
D508
RMC REG
Q509
3
1
REMOTE
CONTROL
IC651
G50
MODEL
MODEL
G30:E4/G50:E4
MODEL
MODEL
AC/DC
DISTINCTION
Q505,506
MODE
CHECK
Q507
D512
22
REG CHK
65
VM
30
RESET
2
RMC
29
MODE CHK
62
INIT
D651
AUDIO 6V
LINE IN BOARD
PRE AMP
BOARD
MAIN BOARD(2/2)
HEADPHONE BOARD
CONTROL-1 (1/2)
BOARD
CONTROL-3
BOARD
FUNCTION
SWITCH
S621-623
FUNCTION
SWITCH
S631,632
CONTROL-2
BOARD
CONTROL-1 BOARD(2/2)
LCD BOARD(1/2)
BATT COM
BOARD
BATT
BOARD
POWER BOARD
LCD BOARD
(2/2)
VOL SEL
BOARD
G30:E4
G50:E4
MODEL
G50:E4
MODEL
(OPR/BATT)
○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○
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CFD-G30/G50
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5-3. SCHEMATIC DIAGRAM – CD SECTION –
L710
JC
L708
JC
L709
L704
L701
(Page 35)
• Refer to page 17 for Note on Schematic Diagrams. • Refer to page 17 for Waveforms. • Refer to page 45, 46 for IC Block Diagrams.
The components identified by
mark
mark
!
or dotted line with mark
!
are critical for safety.
Replace only with part number
specified.
specified.
Les composants identifiés par
une marque
une marque
!
sont critiques
pour la sécurité.
Ne les remplacer que par une
pièce portant le numéro spécifié.
Ne les remplacer que par une
pièce portant le numéro spécifié.
CFD-G30/G50
— 21 —
— 22 —
5-4. PRINTED WIRING BOARD – CD SECTION –
Ref. No.
Location
IC701
B-3
IC702
E-5
IC703
G-5
Q701
D-2
Q702
A-3
• Semiconductor
Location
• Refer to page 12 for Circuit Boards Location. • Refer to page 17 for Note on Printed Wiring Board.
TP(FE)
TP(VC)
TP(TE)
(Page 31)
TP(RF)
1
2
A
B
C
D
E
F
G
3
4
5
6
7
8
S702
CFD-G30/G50
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5-5. SCHEMATIC DIAGRAM – CASSETTE DECK SECTION –
• Refer to page 17 for Note on Schematic Diagrams. • Refer to page 17 for Waveforms. • Refer to page 46 for IC Block Diagrams.
35
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