Sony MDS-SD1 Service Manual page 52

Pin Name
Pin No.
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 DISK1
86 DISK2
87 SCL
88 SDA
89 DISK4
90 DISK3
91 HEADSWDWN
92 HEADSWUP
93 KEY3
94 KEY2
95 KEY1
96 AVSS
97 KEY0
98 VREF
99 3.3V
100 WMCLK
I/O
I Detection signal from IN switch
I Detection signal form HOME switch
I Detection signal from OUT switch
O Loading motor in control
O Loading motor out control
O Loading motor voltage control output
O Laser power ON/OFF
I Disc reflection rate detection
I Disc hole detection
I Detection signal from playback position detection switch
O Not used
– Power supply 3.3V
I Detection signal from limit switch
– Ground pin
O High frequency superimposing ON/OFF output
O Latch signal output to serial pulse
O BD light power ON/OFF output
I LOADING SELECT input (Fixed at "L")
I AD/DA MODE 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 Not used
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)
I DISC1 IN SW (Not used)
I DISC2 IN SW (Not used)
O Clock signal to backup memory
I/O Data signal to backup memory
I DISC4 IN SW (Not used)
I DISC3 IN SW (Not used)
I Recording head down detection signal (Not used)
I Recording head up detection signal (Not used)
I Key 3 (A/D) (Not used)
I Key 2 (A/D) (Not used)
I Key 1 (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
– 66 –
Function