Sony HCD-PX5 Service Manual page 90

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• MD DIGITAL BOARD IC1101 µPDSS3033AYGF-M10-3BA (CD MECHANISM CONTROLLER)
Pin No. Pin Name
1
DRVDAT
2
DRVCLK
3 I2CDAT
4
NC
5
I2CCLK
6
GND
7 DATA
8
CLK
9 EVDD
10
EVSS
11 XLT
12
SENSE
13
LDON
14
LPH
15 SUBQ
16
NC
17
SQCLK
18 CTRL1
19 X4
20
8CM
21
GND/VPP
TE
L 13942296513
22 SPINDLEMUTE
23 to 28 NC
29 AMUTE
30 DACMUTE
31 BDPWR
32 BDRST
33 FUNC ST
34 RESET
35
XT1
36
XT2
37 CHEMICON
38
X2
39
X1
40
VSS
41 VDD
42
NC
ENCODE0 to
43 to 45
ENCODE2
46
NC
47
TRAYSENCE3
www
48 CNT-SW
49 PRTC-SW
.
50
TRAYSENS1
90
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I/O
O Serial data output to a FL driver Not used (open)
O Serial data transfer clock signal output to a FL driver Not used (open)
I/O Data input/output terminal for the IIC bus
O Not used (open)
I/O Shift clock signal input/output terminal for the IIC bus
— Ground terminal
O Serial data output to the CD block
O Serial data transfer clock signal output to the CD block
— Power supply terminal (+5V)
— Ground terminal
O Serial data latch pulse output to the CD block
I Internal status detection monitor input from the CD block
O Laser diode on/off control signal output to the CD block "H": laser on
O Laser power control signal output terminal Not used (open)
I Subcode Q data input from the CD block
O
Not used (open)
O
Subcode Q data reading clock signal output to the CD block
O Disc speed selection (normal/double speed) signal output to the CD block
O Disc speed selection (normal/quadruple speed) signal output to the CD block
O CD disc size select (8cm/12cm) signal output terminal Not used (open)
— Ground terminal
O Spindle motor muting control signal output to the CD block "H": muting on
O Not used (open)
O
Audio muting on/off control signal output terminal "L": muting on Not used (open)
O
Muting on/off control signal output to the D/A converter (IC1006) "L": muting on
O
Power supply for the CD block on/off control signal output "H": power on
O Reset signal output to the CD block
O Function select signal output terminal Not used (open)
I Reset signal input from the system controller (IC501)
I Sub system clock input terminal Not used (fixed at "L")
O Sub system clock output terminal Not used (open)
I Connected to the external capacitor
O Main system clock output terminal (16MHz)
I Main system clock input terminal (16MHz)
— Ground terminal
— Power supply terminal (+5V)
— Not used (open)
I Jog dial pulse input terminal Not used (fixed at "H")
O Not used (open)
Detection input from the disc tray 3 height sensor (IC733)
I
"H": disc tray 3 position is chucking position
I Detection input from the count detect switch Not used (fixed at "H")
x ao
y
I Detection input from the protect switch Not used (fixed at "H")
i
Detection input from the disc tray 1 height sensor (IC731)
I
"H": disc tray 1 position is chucking position
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8
Description
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