Sony SCD-CE775 Service Manual ▷ View online
77
SCD-CE775
•
MAIN BOARD IC902 CXD1095BR (I/O EXPANDER)
Pin No.
Pin Name
I/O
Description
1
MUT CD
O
Muting on/off control signal output to the CXD3068Q (IC509) “L”: muting on
2
MUT 2D
O
Muting control signal output to the BA5983FP (IC502)
3
MUT LOAD
O
Muting control signal output to the BA5912AFP (IC512)
4
SP ON
O
Muting control signal output to the BA5912AFP (IC512)
5
PB5
—
Not used (open)
6
TBLL
O
Table motor drive signal (counterclockwise direction) output to the BA6780 (IC11)
7
TBLR
O
Table motor drive signal (clockwise direction) output to the BA6780 (IC11)
8
VSS
—
Ground terminal (digital system)
9
PC0
—
Not used (open)
10
D SENS
I
Disc status detection signal input from the disc sensor (D11)
11, 12
S1, S2
I
Disc tray position detection signal input from the table address detect (S200)
13
LOAD OUT
O
Loading motor drive signal (loading out direction) output to the BA6780 (IC11)
14
PC5
—
Not used (open)
15
LOAD IN
O
Loading motor drive signal (loading in direction) output to the BA6780 (IC11)
16
A1OUT
O
Sircs remote control signal output of the CONTROL A1II (J381)
17
NC
—
Not used (open)
18
RST DSD
O
Reset signal output to the DSD decoder (IC801) and CXD9647R (IC803) “L”: reset
19
RST DP
O
Reset signal output to the MSM9202 (IC801) “L”: reset
20
RST DVD
O
Reset signal output to the CXD1882R (IC701) “L”: reset
21
RST CD
O
Reset signal output to the CXD3068Q (IC509) “L”: reset
22
VMOD
O
Power on/off control signal output for modulation circuit on optical pick-up block
“L”: power off, “H”: power on
“L”: power off, “H”: power on
23
VSS
—
Ground terminal (digital system)
24
VDD
—
Power supply terminal (+3.3V) (digital system)
25
MULTI
O
Multi/2ch selection signal output “L”: 2ch, “H”: multi
26
SDEN
O
Serial data enable signal output to CXD1881R (IC001)
27
ISBTEST
O
Output terminal for disc inspection mode to DSD decoder (IC801)
28 to 30
D0 to D2
I/O
Two-way data bus with the CXD1882R (IC701) and the CPU (IC901)
31, 32
NC
—
Not used (open)
33 to 37
D3 to D7
I/O
Two-way data bus with the CXD1882R (IC701) and the CPU (IC901)
38
XCLR
I
Clear signal input terminal Not used (fixed at “H”)
39
XDIS
I
Reset signal input from the CPU (IC901) “L”: reset
40
VSS
—
Ground terminal (digital system)
41
XWR
I
Write strobe signal input from the CPU (IC901)
42
XRD
I
Read strobe signal input from the CPU (IC901)
43
XCS
I
Chip select signal input from the CPU (IC901)
44 to 46
A0 to A2
I
Address signal input from the CPU (IC901)
47, 48
PE0, PE1
—
Not used (open)
49
NC
—
Not used (open)
50
PE2
—
Not used (open)
51
CDMODESEL
O
CD mode selection signal output to the CXD9647R (IC803)
52
HDMODESEL
O
HD mode selection signal output to the CXD9647R (IC803)
53
XZLAT
O
Serial data latch pulse signal output to the CXD9647R (IC803)
54
CD SACD
O
SACD/CD mode selection signal output terminal Not used
55
VSS
—
Ground terminal (digital system)
78
SCD-CE775
Pin No.
Pin Name
I/O
Description
56
VDD
—
Power supply terminal (+3.3V) (digital system)
57, 58
PA3, PA4
—
Not used (open)
59
OUT SW
I
Disc tray open/close detection switch (S11) input terminal
“L”: disc tray open, “H”: disc trat close
“L”: disc tray open, “H”: disc trat close
60
PA6
—
Not used (open)
61
LIM SW
I
Detection signal input from limit in switch (S1)
The optical pick-up is inner position when “H”
The optical pick-up is inner position when “H”
62
PB0
—
Not used (open)
63, 64
NC
—
Not used (open)
79
SCD-CE775
7-1. CASE SECTION
SECTION 7
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.
• The mechanical parts with no reference num-
ber in the exploded views are not supplied.
• Accessories and packing materials are given
in the last of the electrical parts list.
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
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.
critical for safety.
Replace only with part number
specified.
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
1
4-231-699-02 PANEL (A), LOADING
2
4-210-291-01 SCREW (CASE 3 TP2)
3
4-231-686-11 CASE (409538)
4
4-231-700-02 PANEL (B), LOADING
#1
7-685-646-79 SCREW +BVTP 3X8 TYPE2 N-S
2
3
2
1
4
Front panel section
Chassis section
#1
#1
not supplied
80
SCD-CE775
7-2. FRONT PANEL SECTION
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
51
4-231-928-01 KNOB (AMS)
52
3-354-981-01 SPRING (SUS), RING
53
X-4953-513-1 PANEL ASSY, FRONT
54
A-4725-680-A KEY BOARD, COMPLETE
55
4-231-973-01 BUTTON (POWER)
56
1-681-334-11 POWER SW BOARD
57
4-951-620-01 SCREW (2.6X8), +BVTP
58
1-681-336-11 LED BOARD
59
A-4725-679-A DISPLAY BOARD, COMPLETE
60
1-690-892-11 WIRE (FLAT TYPE) (12 CORE)
61
1-681-335-11 HEADPHONE BOARD
62
3-354-931-01 KNOB (DIA.10)
53
51
52
55
56
60
57
57
59
57
57
61
54
58
57
57
52
62
supplied
with J881
with J881
supplied with RV881
not supplied
not supplied
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