Sony ICF-CD853 / ICF-CD853L Service Manual ▷ View online
26
ICF-CD853/CD853L
5-13.
IC PIN FUNCTION DESCRIPTION
•
LCD BOARD IC401
µ
PD789477GC-A11-8BT (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1, 2
NC
—
Not used
3 to 5
VLC0 to VLC2
—
Terminal for doubler circuit capacitor connection to develop liquid crystal display drive voltage
6 to 9
COM0 to COM3
O
Common drive signal output to the liquid crystal display
10 to 37
SEG0 to SEG27
O
Segment drive signal output to the liquid crystal display
38
AVDD
—
Power supply terminal (+3.3V) (analog system)
39
CD OPEN
I
CD lid open/close detection signal input terminal “L”: CD lid is closed, “H”: CD lid is opened
40
VERSION
I
Destination setting terminal
41
FSEQ
I
Synchronizing signal detection signal input from the digital signal processor
42
NC
—
Not used
43 to 46
KEY1 to KEY4
I
Key input terminal (A/D input)
47
AVSS
—
Ground terminal (analog system)
48
CD ON
O
Power on/off control signal output for the CD +3.3V power supply “L”: CD power on
49
AC IN
I
Power failure detection signal input terminal “L”: power failure, “H”: power on
50
WRQ
I
Interruption detection signal input from the digital signal processor
51
BUZZERMUTE
O
Buzzer sound muting on/off control signal output “H”: muting on
52
BUZZER
O
Buzzer sound drive signal output
53
LAT CD/RADIO
O
Chip enable signal output to the digital signal processor and FM/AM PLL
54
DATA CD/RADIO
O
Serial data output to the digital signal processor and FM/AM PLL
55
CLK CD/RADIO
O
Serial data transfer clock signal output to the digital signal processor and FM/AM PLL
56
DATA-IN CD
I
Serial data input from the digital signal processor
57
DRF
I
Focus on/off detection signal input from the digital signal processor
58
XRST
O
Reset signal output to the digital signal processor “L”: reset
59
RADIO ON
O
Power on/off control signal output for the radio +3.3V power supply “L”: radio power on
60
POWER ON
O
Power amplifier on/off control signal output “L”: standby mode, “H”: power amplifier on
61
A MUT
O
Audio line muting on/off control signal output “L”: muting on
62
HP SW
I
Connection detection signal input of the headphone jack
“L”: headphone connected, “H”: no headphone
“L”: headphone connected, “H”: no headphone
63
HP ON
O
Headphone on/off control signal output “L”: headphone on
64 to 66
NC
—
Not used
67
BACK LIGHT 0
O
LED drive signal output of the liquid crystal display back light “L”: all LEDs on
68
BACK LIGHT 1
O
LED drive signal output of the liquid crystal display back light “L”: half LEDs on
69
IC
—
Internal connection terminal
70
TX1
I
Sub system clock input terminal (32.768 kHz)
71
TX2
O
Sub system clock output terminal (32.768 kHz)
72
VDD0
—
Power supply terminal (+3.3V)
73
VSS0
—
Ground terminal
74
X1
I
Main system clock input terminal (4.19 MHz)
75
X2
O
Main system clock output terminal (4.19 MHz)
76
RESET
I
System reset signal input “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”
77
NAP LED
O
LED drive signal output of the NAP “L”: LED on
78
CD LED
O
LED drive signal output of the CD “L”: LED on
79
RADIO LED
O
LED drive signal output of the RADIO “L”: LED on
80
BUZZER LED
O
LED drive signal output of the BUZZER “L”: LED on
27
ICF-CD853/CD853L
6-1. CABINET SECTION
SECTION 6
EXPLODED VIEWS
• Items marked “*” are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering
these items.
delay should be anticipated when ordering
these items.
• Accessories are given in the last of the elec-
trical parts list.
• Abbreviation
CND : Canadian model
EE
EE
: East European model
IT
: Italian model
NOTE:
• -XX and -X mean standardized parts, so they
may have some difference from the original
one.
one.
• Color Indication of Appearance Parts
Example:
KNOB, BALANCE (WHITE) . . . (RED)
KNOB, BALANCE (WHITE) . . . (RED)
↑
↑
Parts Color Cabinet's Color
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
1
3-368-852-01 FOOT
* 2
1-684-046-11 PRESET BOARD
3
3-238-159-01 BUTTON (SNOOZE)
4
3-831-441-11 CUSHION (B)
5
X-3381-928-1 COVER ASSY
#1
7-685-647-79 SCREW +P 3X10 TYPE2 IT-3
#2
7-685-146-14 SCREW +P 3X8 TYPE2 NON-SLIT
#3
7-685-547-19 SCREW +BTP 3X10 TYPE2 N-S
#4
7-685-649-79 SCREW +BVTP 3X14 TYPE2 IT-3
1
#1
front cabinet section
upper cabinet section
rear cabinet section
#3
#1
#1
#4
#4
#1
#1
#2
4
2
3
5
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
mark 0 or dotted line with mark
0 are critical for safety.
Replace only with part number
specified.
Replace only with part number
specified.
28
ICF-CD853/CD853L
6-2. UPPER CABINET SECTION
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
51
3-922-112-31 DAMPER
52
3-238-155-01 CABINET (UPPER) (CD853: CND)
52
3-238-155-11 CABINET (UPPER) (CD853: IT, EE/853L)
53
3-019-395-01 PLATE, CHUCKING
54
1-452-899-11 MAGNET
55
3-238-156-01 LID, CD
56
3-046-853-11 RUBBER, VIBRATION PROOF (GREEN)
57
3-046-853-01 RUBBER, VIBRATION PROOF (RED)
58
3-921-725-01 SCREW (2.6X10), +PWH
* 59
A-3021-885-A MAIN BOARD, COMPLETE (CD853L)
* 59
A-3021-859-A MAIN BOARD, COMPLETE (CD853)
60
3-238-166-01 HOLDER (ANTENNA)
61
1-824-018-11 CABLE, FLEXIBLE FLAT (14 CORE)
62
3-238-173-01 SPRING (CD)
63
3-243-255-01 CUSHION (C)
64
3-243-253-01 CUSHION (A)
65
3-243-252-01 CUSHION (SP)
66
A-3347-089-A CD BOARD, COMPLETE
67
3-923-736-01 COVER, CD
68
1-757-689-11 CABLE, FLEXIBLE FLAT (16 CORE)
ANT1
1-501-907-61 ANTENNA, FM WIRE
L3
1-428-951-21 COIL, FERRITE-ROD ANTENNA (MW) (CD853)
L3
1-428-952-21 COIL, FERRITE-ROD ANTENNA (MW/LW)
(CD853L)
S302
1-692-960-11 SWITCH, PUSH (1 KEY)
(CD LID OPEN/CLOSE DETECT)
#1
7-685-647-79 SCREW +P 3X10 TYPE2 IT-3
#5
7-685-533-19 SCREW +BTP 2.6X6 TYPE2 N-S
#6
7-685-853-04 SCREW +BVTT 2X6 (S)
68
66
#6
51
52
53
54
55
56
B
B
A
A
#5
#1
#1
S302
L3
ANT1
MAIN
board
board
not supplied
Optical block
(KSM-213RDP)
(KSM-213RDP)
#1
#1
56
57
58
57
67
58
59
60
61
62
63
64
65
65
29
ICF-CD853/CD853L
6-3. FRONT CABINET SECTION
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
* 101
A-3021-884-A LCD BOARD, COMPLETE (CD853L: AEP)
* 101
A-3021-887-A LCD BOARD, COMPLETE (CD853L: UK)
* 101
A-3021-892-A LCD BOARD, COMPLETE (CD853: CND)
* 101
A-3021-869-A LCD BOARD, COMPLETE (CD853: IT, EE)
102
3-238-169-01 CASE (LCD)
103
3-831-441-11 CUSHION (B)
104
3-243-251-01 CUSHION (LIGHT GUIDE PLATE)
* 105
1-684-045-11 ALARM BOARD
* 106
1-684-044-11 LED BOARD
107
3-238-164-01 HOLDER (LCD)
109
3-238-758-01 SHEET (+/-)
113
3-238-174-01 SPRING (SP)
114
X-3381-924-1 CABINET (FRONT) ASSY (CD853: CND)
114
X-3381-925-1 CABINET (FRONT) ASSY (CD853: IT, EE)
114
X-3381-926-1 CABINET (FRONT) ASSY (CD853L)
FFC1
1-823-761-11 CABLE, FLEXIBLE FLAT (20 CORE)
LCD401 1-804-647-11 DISPLAY PANEL, LIQUID CRYSTAL
SP101
SP101
1-529-976-11 SPEAKER (6.6cm) (L)
SP201
1-529-976-11 SPEAKER (6.6cm) (R)
#1
7-685-647-79 SCREW +P 3X10 TYPE2 IT-3
101
104
103
105
106
107
109
102
#1
FFC1
LCD401
LCD board
SP101
SP201
#1
103
113
113
114
103
103
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