Sony MDS-PC1, Service Manual

Page: 67 / 79

– 82 –
Not used
ADIP sync or subcode Q sync input from CXD2652AR
Remote controls
Signal input from CONTROL A1
Not used
Ground
Not used
System reset input “L”: reset
Main clock output (7.0MHz)
Ground
Main clock input (7.0MHz)
+3.3V power supply
(Fixed at “H”)
Subcode Q sync input of digital in U-bit. CD format from CXD2652AR
Power down detection input “L”: Power down
Interrupt status input from CXD2652AR
JOG dial pulse input from the rotary encoder
Not used
Writing data signal output to the serial bus
Reading data signal input from the serial bus
Clock signal output to the serial bus
Chip select signal output to the display driver
Serial data signal output to the display driver
Not used (Fixed at “L”)
Serial clock signal output to the display driver
Not used
Reset signal output to the D/A, A/D converter Reset: “L”
Line out muting output Mute: “L”
Strobe signal output to the power supply circuit Power supply ON: “H”, stand by: “L”
Detection input from the chucking-in switch “L”: Chucking
Detection input from the disc detection switch (Fixed at “L”)
Detection input from the loading out switch. Loaded out position: “L”, Others: “H”
Loading motor control input
Loading motor control output
Loading motor voltage control output Low voltage: “H”
Not used
Detection signal input from the recording position detection switch
Detection signal input from the playback position detection switch
Not used
+3.3V power supply
1, 2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21, 22
23 to 25
26
27 to 30
31
32
33
34
35
36
37
38 to 47
48
49
50
51
52
53
54
55
56
57, 58
59
60
61
62
Pin No. Pin Name I/O Function
• IC401 System Control (M30610MCA-261FP) (MAIN Board)
O
O
O
I
I
I
I
—
O
O
I
O
—
I
—
I
I
I
I
I
O
O
O
O
I
O
O
O
O
O
O
O
O
O
I
I
I
I
O
O
O
I
I
O
—
NC
(DAOUT0)
(DAOUT1)
SQSY
REMOCON
CONTROL A1 IN
BYTE
CNVSS
XIN-T
XOUT-T
SYSTEM RST
XOUT
GND
XIN
VCC (3.3V)
NMI
DQSY
P.DOWN
XINT
JOG1, JOG0
NC
NC (BEEP)
NC
SWDT
SRDT
SCLK
FLCS
FLDATA
NC
FLCLK
NC
ADA RES
AMUTE
STBY
CHACK IN
PACK-IN
PACK-OUT
LDIN
LDOUT
LD-LOW
NC
REC-P
PB-P
REC/PB (NC)
+3V