Sony ICF-CD523 Service Manual ▷ View online
29
ICF-CD523
IC591
BA5826FP-E2
1
2
3
4
5
6
7
8
9
10
11
12
13
13
14
28
27
26
24
23
22
21
20
19
18
17
16
15
25
LEVEL
SHIFT
LEVEL
SHIFT
THERMAL
SHUT-DOWN
MONITOR
LEVEL
SHIFT
LEVEL
SHIFT
D.BUFF
D.BUFF
D.BUFF
GND
SLIN
(SLIN)
VREF
VCC
VCC
(FIN)
FIN
F–
F+
SL–
SL+
NC
OPIN
SP–
REG–B
SP+
SPIN
RST
REGO
MUTE
GND
TIN
(TIN)
T–
T+
GND
OPOUT
D.BUFF
D.BUFF
D.BUFF
D.BUFF
D.BUFF
REGULATOR
DRIVER
MUTE
VCC
VCC
IC701
BA6208
1
2
3
4
5
6
7
8
9
NC
OUTPUT 2
Vcc
GND
NC
INPUT 2
INPUT 1
NC
MOTOR
DRIVE
MOTOR
DRIVE
REG
SWITCH
SWITCH
OUTPUT1
30
ICFCD523
•
IC Pin Function Description
MAIN BOARD IC401 uPD789406AGC-044-8BT-A (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
VDD1
-
Power supply terminal (+5V)
2
BIAS
O
Bias output for the liquid crystal display drive
3 to 5
VLC0 to VLC2
-
Terminal for doubler circuit capacitor connection to develop liquid crystal display drive voltage
6
VSS1
-
Ground terminal
7 to 10
COM0 to COM3
O
Common drive signal output to the liquid crystal display
11 to 26
SEG0 to SEG15
O
Segment drive signal output to the liquid crystal display
27 to 30
SEG16 to SEG19
O
Segment drive signal output terminal Not used
31
NC
-
Not used
32
B MUT
O
Buzzer sound muting on/off control signal output terminal Not used
33
C RST
O
System reset signal output to the RF amplifier and digital signal processor "L": reset
34
KS4
O
Key strobe signal output to the key matrix Not used
35 to 38
KS0 to KS3
O
Key strobe signal output to the key matrix
39
AVDD
-
Power supply terminal (+5V) (for A/D converter)
40
AVREF
-
Reference voltage (+5V) terminal (for A/D converter)
41
VERSION0
I
Destination setting terminal "L": US and Canadian models, "H": AEP model
42
VERSION1
I
Destination setting terminal Fixed at "L" in this set
43
CLOSE SW
I
Disc tray close detection switch input terminal "H": disc tray is closed
44
OPEN SW
I
Disc tray open detection switch input terminal "H": disc tray is opened
45
C SENS2
I
Internal status signal (sense signal) input from the RF amplifier
46
C SENS1
I
Internal status signal (sense signal) input from the digital signal processor
47
C SQSO
I
Subcode Q data (80 bit serial) input from the digital signal processor
48
AVSS
-
Ground terminal (for A/D converter)
49
SCOR
I
Subcode sync (S0+S1) detection signal input from the digital signal processor
50
C MUT
O
Digital muting on/off control signal output to the digital signal processor "H": muting on
51
C SQCK
O
Subcode Q data (80 bit serial) reading clock signal output to the digital signal processor
52
AC IN
I
Power failure detection input terminal "L": power failure, "H": power on
53
BUZZER
O
Buzzer sound drive signal output terminal
54
C CLK
O
Serial data transfer clock signal output to the digital signal processor
55
C LAT
O
Serial data latch pulse signal output to the digital signal processor
56
C DATA
O
Serial data output to the digital signal processor
57
M MUT
O
Muting on/off control signal output terminal Not used
58
AMUT
I/O
At initial mode: Setting terminal for the test mode (CD manual mode) "L" CD manual mode
At normal mode: Audio muting on/off control signal output terminal "L": muting on
At normal mode: Audio muting on/off control signal output terminal "L": muting on
59
CD ON
I/O
At initial mode: Setting terminal for the test mode (CD auto mode) "L": CD auto mode
At normal mode: Power on/off control signal output for the CD +5V power supply
"L": CD power on
At normal mode: Power on/off control signal output for the CD +5V power supply
"L": CD power on
60
RADIO ON
O
Power on/off control signal output for the radio +5V power supply "L": radio power on
61
R DATA
O
PLL serial data output to the FM/AM PLL
62
R CLK
O
PLL serial data transfer clock signal output to the FM/AM PLL
63
R LAT
O
PLL serial data latch pulse signal output to the FM/AM PLL
64
POWER ON
O
Front side speaker on/off control signal output to the power amplifier "H": speaker on
65
SHIFT0
O
Shift clock output terminal of the main system clock (4.19 MHz) Not used
66
SHIFT1
O
Shift clock output terminal of the main system clock (4.19 MHz) Not used
67
RESET
I
System reset signal input from the reset signal generator "L": reset
For several hundreds msec. after the power supply rises, "L" is input, then it changes to "H"
For several hundreds msec. after the power supply rises, "L" is input, then it changes to "H"
68
X2
O
Main system clock output terminal (4.19 MHz)
69
X1
I
Main system clock input terminal (4.19 MHz)
Ver. 1.1
31
ICF-CD523
Pin No.
Pin Name
I/O
Description
70
VSS0
-
Ground terminal
71
VDD0
-
Power supply terminal (+5V)
72
XT2
O
Sub system clock output terminal (32.768 kHz)
73
XT1
I
Sub system clock input terminal (32.768 kHz)
74
IC
-
Internal connection terminal (connected to ground)
75
TRAY OPEN
O
Motor drive signal output to the loading motor drive "H": disc tray out
76
TRAY CLOSE
O
Motor drive signal output to the loading motor drive "H": disc tray in
77 to 80
KR0 to KR4
I
Key return signal input from the key matrix
32
ICF-CD523
SECTION 7
EXPLODED VIEWS
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
* 1
3-049-249-02 CHASSIS
2
3-049-247-41 CABINET (UPPER) (US)
2
3-049-247-51 CABINET (UPPER) (CND)
2
3-049-247-61 CABINET (UPPER) (AEP)
3
3-049-254-02 KNOB (VOL)
4
1-832-021-11 CABLE, FLEXIBLE FLAT (16 CORE)
5
3-252-831-01 SCREW (M2.6), (+) P
6
3-254-145-01 SCREW (B3), (+) BV TAPPING
7
3-254-143-01 SCREW (B3), (+) BV TAPPING
8
X-2109-182-1 PLATE (CD LID) SUB ASSY
S591
1-571-936-11 SWITCH, LEAF (LIMIT)
#1
7-684-025-04 N 5, TYPE 2
7-1.
CABINET (UPPER), CHASSIS SECTION
•
Items marked “*” are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering
these items.
are seldom required for routine service. Some
delay should be anticipated when ordering
these items.
•
The mechanical parts with no reference
number in the exploded views are not supplied.
number in the exploded views are not supplied.
•
Accessories are given in the last of the
electrical parts list.
electrical parts list.
NOTE:
•
-XX and -X mean standardized parts, so they
may have some difference from the original
one.
may have some difference from the original
one.
•
Color Indication of Appearance Parts
Example:
KNOB, BALANCE (WHITE) . . . (RED)
Example:
KNOB, BALANCE (WHITE) . . . (RED)
↑
↑
Parts Color
Cabinet's Color
Les composants identifiés par une
marque 0 sont critiquens pour la
sécurité.
Ne les remplacer que par une pièce
portant le numéro spécifié.
marque 0 sont critiquens pour la
sécurité.
Ne les remplacer que par une pièce
portant le numéro spécifié.
The components identified by mark
0 or dotted line with mark 0 are
critical for safety.
Replace only with part number
specified.
0 or dotted line with mark 0 are
critical for safety.
Replace only with part number
specified.
2
6
#1
not supplied
#1
FLM-CD523-197
not supplied
(MOTOR board)
(MOTOR board)
cabinet (lower) section
1
8
7
cabinet (front) section
4
3
S591
7
6
5
•
Abbreviation
CND
CND
: Canadian model
Ver. 1.1
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