Sony CFD-G30 / CFD-G50 Service Manual ▷ View online
CFD-G30/G50
— 41 —
— 42 —
5-14. PRINTED WIRING BOARD – POWER SECTION –
• Refer to page 17 for Note on Printed Wiring Board.
31
1
2
A
B
C
D
E
F
G
H
3
4
5
6
7
8
9
10
11
CFD-G30/G50
— 43 —
— 44 —
5-16. IC PIN FUNCTION DESCRIPTION
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35 – 37
38 – 41
42 – 59
60
61
62
63
64
65
66
67
68
69
70
I/O
I
I
O
O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I
I
—
—
O
O
—
—
O
O
O
O
O
O
O
O
O
O
O
Pin Name
C-SCOR
RMC
MUTE
ADJ
C-SCLK
C-SENS
C-SQCK
C-SQSO
C-XRST
C-CLOCK
C-LATCH
C-DATA
C-AGCCONT
R-COUNT
R-CLOCK
R-DATA
R-LATCH
V-LATCH
V-DATA
V-CLOCK
P-CON
REG CHK
REC
SDA
KEY-1
KEY-2
KEY-3
LIGHT CONT
MODE CHECK
RST
EXTAL
XTAL
V
SS
VL
VLC 3 – 1
COM 0 – 3
SEG 0 – 17
NC
NC
INIT
WOOFER2
WOOFER1
VM
VH
ISS-1
ISS-2
TAPE
RADIO
Description
CD SCOR input
RMC input terminal
Mute
f tex divided-by-16 frequency output terminal
CD SENS read-out clock
CD SENS input
CD SUBQ read-out clock
CD SUBQ data IN
CD SYSTEM reset
CD SYSTEM clock
CD SYSTEM latch
CD COMMAND OUT
CD AGCCONT output
Radio data IN
Radio clock
Radio data
Radio latch
VCL IC latch
VOL IC data
VOL IC clock
Power control
Power supply monitoring port
REC input terminal
EEPROM
Key input terminal
Key input terminal
Key input terminal
Key input terminal
SET specification read-out terminal
RST terminal
External 4 MHz is connected to this terminal (input)
External 4 MHz is connected to this terminal
Ground
LCD bias control
LCD bias power supply
LCD common output
LCD common output
Not connected
Not connected
Terminal for initial setting
Terminal for tone control
DBB light control output
Center voltage read-out terminal
Supply voltage read-out terminal
ISS1
ISS2
Tape function output
Radio function output
• IC501 CXP83620-019Q (SYSTEM CONTROL)
Pin No.
71
72
73
74
75
76
77
78
79
80
Pin Name
CD
V
DD
TX
TEX
NC
A-MUTE
SCL
EC
TC-PLAY
C-DOOR
I/O
O
—
—
—
—
O
O
I
I
I
Description
CD function output
Power supply
External 150 kHz oscillator is connected to this terminal
External 150 kHz oscillator is connected to this terminal
Not connected
Audio mute output terminal
Clock output EEPROM
Event counter input
TC-play input
Open/close of CD lid.
— 45 —
5-17. IC BLOCK DIAGRAMS
IC701 CXA2550M
IC703 BA5974FP
1
2
3
4
5
6
7
8
16
17
18
19
20
15
14
13
12
11
10
9
AGCVTH
AGCCONT
V
CC
LD_ON
RFTC
RF I
RF O
RFM
FE
FE_BIAS
TE
VC
EI
E
F
V
EE
PD2
PD1
PD
LD
LEVEL SHIFT
INTERFACE
INTERFACE
INTERFACE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
20
21
22
23
24
25
26
27
28
19
18
17
16
15
F
R
R
F
F
R
R
F
R
R
F
F
MUTE
THERMAL
SHUTDOWN
VREFOUT
VREFIN
POWVCC
CH1FIN
CH1RIN
CH2FIN
CH2RIN
CH2OUTR
CH2OUTF
CH1OUTR
CH1OUTF
CAP
AIN1
CAP
AIN2
GND
PRFVCC
MUTE
POWVCC
CH4SIN'
CH4SIN
CH4BIN
CH3FIN
CH3RIN
CH3OUTR
CH3OUTF
CH4OUTR
CH4OUTF
CAP
AIN3
GND
— 46 —
IC702 CXD2587Q
IC301 TA2068N
TE
RFDC
CE
IGEN
AVSS0
ADIO
AVDD0
CLTV
FILO
AVSS3
VSS
AVDD3
DOUT
VDD
PCO
FILI
ASYO
ASYI
RFAC
BIAS
SSTP
DFCT
MIRR
MDP
LOCK
FOK
SFDR
VSS
TEST
FRDR
FE
VC
VC
COUT
SE
XTSL
TES1
SRDR
TFDR
FFDR
TRDR
TRDR
2
1
70
71
68
69
66
67
64
65
62
61
63
73
74
72
75
76
77
78
78
79
80
4
XRST
3
SQCK
SQSO
5
9
8
7
6
56
60
53
54
55
59
57
58
51
52
48
49
50
47
44
45
46
43
41
42
XLAT
CLOK
SENS
SYSM
DATA
XUGF
XPCK
GFS
C2PO
WFCK
10 11 12 13 14 15 16 17 18 19 20
21
22
23
24
25
26
32
33
30
31
36
37
34
35
39
40
38
28
27
29
SPOA
ATSK
SCLK
VDD
SCOR
SPOB
XLON
XTAI
XVDD
EMPH
AVDD1
AOUT1
AIN1
XTAO
XVSS
XVSS
AIN2
AOUT2
AVDD2
RMUT
LOUT2
LOUT1
BCK
LRCK
PCMD
LMUT
AVSS1
AVSS2
CPU
INTERFACE
SERVO AUTO
SEQUENCER
SERIAL IN
INTERFACE
OVER SAMPLING
DIGITAL FILTER
3rd ORDER
NOISE SHAPER
PWM
PWM
EFM
DEMODULATOR
TIMING
LOGIC
DIGITAL
OUT
D/A
INTERFACE
DIGITAL
PLL
ASYMMETRY
CORRECTION
CORRECTION
CLOCK
GENERATOR
MIRR, DFCT,
FOK
DETECTOR
DIGITAL
CLV
SUBCODE
PROCESSOR
SERVO
INTERFACE
SERVO DSP
FOCUS
SERVO
SERVO
TRACKING
SERVO
SLED
SERVO
PWM GENERATOR
FOCUS PWM
GENERATOR
TRACKING
PWM GENERATOR
SLED PWM
GENERATOR
16K
RAM
ERROR
CORRECTOR
INTERNAL BUS
A/D
CONVERTER
OPERATIONAL
AMPLIFIER
ANALOG SWITCH
21
22
23
24
2
3
5
4
6
7
8
9
10
1
11
12
13
14
15
16
17
18
19
20
LOGIC
7dB
26dB
26dB
7dB
ALC1
ALC2
DET
MIC
AMP1
1k
10k
NAB
AMP2
NAB
AMP1
ON
MUTE
MUTE
MUTE
BUF AMP
A2
BUF AMP
A1
BUF AMP
B1
BUF AMP
B2
TAPE
TAPE
–––––
TAPE
–––––
LINE
RADIO
10k
10k
10k
1k
1k
10k
10k
10k
10k
10k
10k
10k
10k
10k
10k
15k
6k
1k
6k
LINE
RADOI
TAPE
REC
AMP1
REC
AMP2
REF AMP
2.1
ON
ON
MONITOR
AMP
MONITOR
AMP
LIN
MIC
I/EX
L. RAD
L. LO
REC
TAPE
R. LIN
MIC
IN
R. LO
LINE
R. RAD
VCC
MIC
NF
R. PO
R. NF
R. RO
R. IN
GND
REF
L. IN
L. RO
L. NF
L. PO
AGC
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