Sony HCD-EC98P / MHC-EC98P / MHC-EC98PI Service Manual ▷ View online
HCD-EC98P
45
PANEL BOARD IC301 MB90F831PF-G-SPE1 (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
SEG32
O
Segment drive signal output to the liquid crystal display
2
O-AMP-ON
O
Relay drive signal output terminal (for speaker)
3
O-POWER
O
Main power on/off control signal output terminal "H": on
4
O-CD-ON
O
CD power on/off control signal output terminal "H": on
5 to 7
I-3CD-SW3/O-CDM-
CLOSE, I-3CD-SW2/
NC, I-3CD-SW1/
O-CDM-OPEN
I
Detection switch input terminal
8
O-3CD-M1+/
O-CDM-M1+
O-CDM-M1+
O
Motor drive signal output terminal
9
I-RMC
I
Remote control signal input from the remote control receiver
10
O-3CD-M1-/
O-CDM-M1-
O-CDM-M1-
O
Motor drive signal output terminal
11, 12
O-3CD-M2+/NC,
O-3CD-M2-/NC
O
Motor drive signal output terminal
13
X0A
I
Sub system clock input terminal (32.768 kHz)
14
X1A
O
Sub system clock output terminal (32.768 kHz)
15
VCC
-
Power supply terminal (+3.1V)
16
VSS
-
Ground terminal
17 to 20
I/O-CD-BUS0 to
I/O-CD-BUS3
O
Serial data output to the CD-MP3 processor
21
I-3CD-CHACK
I
Disc chucking detection switch input from the CD mechanism deck (Australian model)
22
I-3CD-STOCK
I
Disc stocking detection switch input from the CD mechanism deck (Australian model)
23
O-DR-MUTE
O
Muting signal output to the motor/coil driver
24
I-REQ
I
Request signal input from the CD-MP3 processor
25
O-CD-BUCK
O
Serial data transfer clock signal output to the CD-MP3 processor
26
O-CD-CCE
O
Chip enable signal output to the CD-MP3 processor
27
O-CD-RST
O
System reset signal output to the CD-MP3 processor "L": reset
28
O-LED-STBY
O
LED drive signal output terminal for STANDBY indicater
29
I-USB-TXD/I-DMP-TXD
I
Serial data input from the DMPORT connector
30
I-USB-DO/
I-DMP-5V-DET
I
Power voltage detection signal input terminal
31
O-USB-RXD/
O-DMP-RXD
O
Serial data output to the DMPORT connector
32
AVCC
-
Power supply terminal (+3.1V)
33
I-TU-DO
I
Serial data input from the AM/FM DET
34
O-USB-DI/5V-ON/
O-TP-REC-MUTE
O-TP-REC-MUTE
O
Power on/off control signal output terminal
35
AVSS
-
Ground terminal
36
I-P-MONI
I
Power monitor signal input terminal
37, 38
I-KEY1, I-KEY2
I
Front panel key input terminal (A/D input)
39
I-TU-ANSD
I
Power monitor signal input terminal
40
O-USB-SEL1_2/O-SW-
ON/I-TP-STATE
O
Subwoofer on/off control signal output terminal
41
I-KEY-WAKE-UP/VOL
I
System wake up signal input terminal
42
I-HOLD
I
Hold signal input terminal
43
O-CD-SBSY
I
Subcode block sync signal input from the CD-MP3 processor
44
GND
-
Ground terminal
45
I-DMP-DET/
O-USB-RST
O-USB-RST
I
DMPORT connector detection signal input terminal
46
I-MODEL
I
Model setting terminal
47
I-SUFFIX
I
Suffi x setting terminal
48
I-1CD-CLOSE_OPEN/
NC
I
CD table open/close detection signal input terminal (Australian model)
49
I/O-I2C-DATA
I/O
Two-way serial data bus with the electrical volume
50
I/O-I2C-CLK
O
Serial data transfer clock signal output to the electrical volume
51 to 53
MD2 to MD0
-
Not used
54
I-RST
I
Reset signal input from the voltage detect "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"
55
O-TU-CE
O
Chip enable signal output to the FM/AM DET
56
O-TU-CLK
O
Serial data transfer clock signal output to the FM/AM DET
HCD-EC98P
46
Pin No.
Pin Name
I/O
Description
57
O-TU-DI
O
Serial data output to the FM/AM DET
58
VLCD
-
Terminal for doubler circuit capacitor connection to develop liquid crystal display drive volt-
age
age
59 to 62
COM0, COM1, CMO2,
CMO3
O
Common drive signal output to the liquid crystal display
63, 64
SEG0, SEG1
O
Segment drive signal output to the liquid crystal display
65
VCC
-
Power supply terminal (+3.1V)
66
VSS
-
Ground terminal
67 to 89
SEG2 to SEG24
O
Segment drive signal output to the liquid crystal display
90
VCC
-
Power supply terminal (+3.1V)
91
VSS
-
Ground terminal
92
X1
I
Main system clock output terminal (6 MHz)
93
X0
O
Main system clock input terminal (6 MHz)
94 to 100
SEG25 to SEG31
O
Segment drive signal output to the liquid crystal display
47
HCD-EC98P
SECTION 7
EXPLODED VIEWS
1
3-276-203-01 DOOR (CD) (AUS)
1
3-298-721-01 DOOR (1CD-G) (US, CND)
2
3-363-099-32 SCREW (CASE 3 TP2)
3
2-890-831-01 PANEL (L), SIDE (US, CND)
3
2-890-831-11 PANEL (L), SIDE (AUS)
4
2-890-830-01 PANEL (R), SIDE (US, CND)
4
2-890-830-11 PANEL (R), SIDE (AUS)
5
2-890-829-01 PANEL (TOP) (US, CND)
5
2-890-829-11 PANEL (TOP) (AUS)
6
3-254-143-11 SCREW (B3), (+) BV TAPPING
#1
7-685-647-79 SCREW +BVTP 3X10 TYPE2 IT-3
#5
7-685-247-14 SCREW +KTP 3X10 TYPE2 NON-SLIT
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
Note:
• -XX and -X mean standardized parts, so
• -XX and -X mean standardized parts, so
they may have some difference from the
original one.
original one.
• Items marked “*” are not stocked since
they are seldom required for routine ser-
vice.
vice.
Some delay should be anticipated when
ordering these items.
• The mechanical parts with no reference
number in the exploded views are not sup-
plied.
plied.
• Color Indication of Appearance Parts Ex-
ample:
KNOB, BALANCE (WHITE) . . . (RED)
R
R
Parts of Color Cabinet’s Color
• Abbreviation
AUS :
AUS :
Australian
model
CND : Canadian model
7-1. PANEL SECTION
1
2
4
2
3
#1
#1
#5
#5
chassis section
front panel section
5
6
6
6
The components identifi ed by mark 0
or dotted line with mark 0 are critical for
safety.
Replace only with part number specifi ed.
or dotted line with mark 0 are critical for
safety.
Replace only with part number specifi ed.
Les composants identifi és par une marque
0
0
sont critiques pour la sécurité.
Ne les remplacer que par une pièce portant
le numéro spécifi é.
le numéro spécifi é.
48
HCD-EC98P
51
52
53
54
55
56
56
56
57
58
59
56
56
60
61
not supplied
not
supplied
supplied
not supplied
not supplied
(KEY POWER board)
(KEY POWER board)
not supplied
(KEY CD board)
(KEY CD board)
not supplied
(JACK HOLD board)
(JACK HOLD board)
not supplied
(JACK board)
(JACK board)
DMP board
64
63
56
62
51
3-276-202-01 KNOB
(VOL)
52
3-276-204-01 RING (VOL) (US, CND)
52
3-276-204-21 RING (VOL) (AUS)
53
3-276-201-01 PLATE, ORNAMENTAL (AUS)
53
3-452-117-01 PLATE, ORNAMENTAL (1CD-G) (US, CND)
54
3-276-198-01 WINDOW
55
A-1418-866-A PANEL ASSY, FRONT (AUS)
55
A-1418-867-A PANEL ASSY, FRONT (US, CND)
56
3-087-053-01 +BVTP2.6
(3CR)
57
1-835-338-21 CABLE, FLEXIBLE FLAT (31 CORE)
58
3-297-298-01 SHEET
(RM)
59
A-1379-636-A PANEL BOARD, COMPLETE (US, CND)
59
A-1426-098-A PANEL BOARD, COMPLETE (AUS)
60
1-831-774-21 CABLE, FLEXIBLE FLAT (9 CORE)
61
4-225-252-01 CUSHION
(FOOT)
62
1-835-336-21 CABLE, FLEXIBLE FLAT (11 CORE)
63
A-1379-815-A DMP BOARD, COMPLETE
64
3-276-209-01 BRACKET
(DMPORT)
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
7-2. FRONT PANEL SECTION
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