Sony MDS-SP55 Service Manual page 49

Pin No. Pin Name
51 CHAK-IN
52
HOME
53
PACK-OUT
54 LDIN
55
LDOUT
56
LD-LOW
57 LDON
58
REFLECT
59
PROTECT
60 PB-P
61
REC/PB
62
3.3V
63 LIMITIN
64
GND
65
MOD
66 XLAT
67
WRPWR
68
LODINGSEL
69 L3MODE
70
MODEL
71
DIST
72 SCTX
73
XINT
74
REC-P
75 DQSY
76
NC
77
DIGRST
78 SENS
79
MNT3
80
MNT2
81 MNT1
82
MNT0
83
SENSORSW
84 DISK5
85 LED PLAY
86
LED PAUSE
87 SCL
88 SDA
89
LED SYNC
90 LED REC
91 HEADSWDWN
92
DEADSWUP
93 KEY3
94 KEY2
95
KEY1
96 AVSS
97 KEY0
98
VREF
99 3.3V
100 WMCLK
I/O
I
Detection signal from chucking-in switch
I
Detection signal from HOME switch (Fixed at "L")
I Detection signal from loading out (Loading out position: "L", others: "H") switch
O
Loading motor in control
O
Loading motor out control
O Loading motor voltage control output (Low voltage: "H")
O
Laser power ON/OFF control output ("H": Laser ON)
I
Disc reflection rate detection (Disc with low reflection rate "H")
I Disc hole detection (Protect: "H")
I
Detection signal from playback position detection switch
O
Not used
— Power supply 3.3V
I
Detection signal from limit switch (Sled limit in: "L")
—
Ground pin
O High frequency superimposing ON/OFF output
O
Latch signal output to serial pulse
O
BD write power ON/OFF output
I LOADING SELECT input (Fixed at "L")
I
AD/DA converter (IC201) signal output
I
Model selection (Fixed at "H")
I Destination selection (Fixed at "H")
O
Timing for sending write data to CXD2654
I
CXD2654 interrupt status input
I Detection signal from recording position detection switch
I
Digital in sync input
O
Not used
O CXD2654, motor driver reset signal
I
Internal status
I
Spindle servo lock status monitor
I Command execution status monitor
I
Track jump signal
I
Focus OK signal
O MAIN SENSOR waveform switching output (Not used)
I
DISC5 IN SW (Not used)
O
LED drive signal output (PLAY)
O LED drive signal output (PAUSE)
O
Clock signal to backup memory
I/O
Data signal to backup memory
O LED drive signal output (SYNC)
O
LED drive signal output (REC)
I
Recording head down detection signal
I Recording head up detection signal
I
Key 3 (A/D) (Fixed at "L")
I
Key 2 (A/D) (Fixed at "L")
I Key1 (A/D)
—
Ground pin
I
Key 0 (A/D)
—
A/D reference voltage 3.3V
—
Power supply 3.3V
I
MD WM LINK data input (Fixed at "L")
Function
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