Read Sony CMT-PX333 / HCD-PX333 Service Manual online
88
HCD-PX333
• MD DIGITAL BOARD IC1101
µ
PDSS3033AYGF-M10-3BA (CD MECHANISM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
DRVDAT
O
Serial data output to a FL driver Not used (open)
2
DRVCLK
O
Serial data transfer clock signal output to a FL driver Not used
3
I2CDAT
I
Data input/output terminal for the IIC bus
4
NC
O
Not used (open)
5
I2CCLK
I
Shift clock signal input/output terminal for the IIC bus
6
GND
—
Ground terminal
7
DATA
O
Serial data output to the CD block
8
CLK
O
Serial data transfer clock signal output to the CD block
9
EVDD
—
Power supply terminal (+5V)
10
EVSS
—
Ground terminal
11
XLT
O
Serial data latch pulse output to the CD block
12
SENSE
I
Internal status detection monitor input from the CD block
13
LDON
O
Laser diode on/off control signal output to the CD block
14
LPH
O
Laser power control signal output terminal Not used (open)
15
SUBQ
I
Subcode Q data input from the CD block
16
NC
O
Not used (open)
17
SQCLK
O
Subcode Q data reading clock signal output to the CD block
18
CTRL1
O
Disc speed selection (normal/double speed) signal output to the CD block
19
X4
O
Disc speed selection (normal/quadruple speed) signal output to the CD block
20
8CM
O
CD disc size select (8cm/12cm) signal output terminal Not used (open)
21
GND/VPP
—
Ground terminal
22
SPINDLEMUTE
O
Spindle motor muting control signal output to the CD block “H”: muting on
23 to 29
NC
O
Not used (open)
AMUTE
30
O
Muting on/off control signal output to the D/A converter (IC1006) “L”: muting on
31
BDPWR
O
Power supply for the CD block on/off control signal output “H”: power on
32
BDRST
O
Reset signal output to the CD block
33
FUNC ST
O
Function select signal output terminal Not used (open)
34
RESET
I
Reset signal input from the system controller (IC501)
35
XT1
I
Sub system clock input terminal Not used (fixed at “L”)
36
XT2
O
Sub system clock output terminal Not used (open)
37
CHEMICON
I
Connected to the external capacitor
38
X2
O
Main system clock output terminal (16MHz)
39
X1
I
Main system clock input terminal (16MHz)
40
VSS
—
Ground terminal
41
VDD
—
Power supply terminal (+5V)
42
NC
—
Not used (open)
43 to 45
ENCODE0 to
ENCODE2
I
Jog dial pulse input terminal Not used (fixed at “H”)
46
NC
O
Not used (open)
47
TRAYSENCE3
I
Detection input from the disc tray address detect rotary encoder Not used (fixed at “H”)
48
CNT-SW
I
Detection input from the count detect switch Not used (fixed at “H”)
49
PRTC-SW
I
Detection input from the protect switch Not used (fixed at “H”)
50, 51
TRAYSENS1,
TRAYSENS2
I
Detection input from the disc tray address detect rotary encoder Not used (fixed at “H”)
52
OUT-SW
I
Detection input from the tray open/close detect switch (S1) “L”: when tray is open
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