Sony SCD-XB940 Service Manual page 69

Pin No. Pin Name I/O
55, 56 EXPO0, EXPO1
57 SPDLSTOP
58 GND
59 MCK
60 GND
61 DSLED
62 XHDSPCS
63 OSCW2
64 OSCW1
65 to 67 TSW3 to TSW1
68 DSW1
69, 70 TRNS, TRMP
71 AVDRST
72 AVDWT
73 XJGWT
74 XJGCS
75 AVDRQ1IN
76 AVDRQ0IN
77 AVDADO
78 NC
79, 80 GND
81 VDD
82 NC
83 CKSW2
84, 85 EXPI1, EXPI2
86 UCSW
87 DLSW
88 CKSW1
89, 90 CKMM, CKMP
91, 92 LDMM, LDMP
93 XDRVMUTE
94 SPGAIN
95 KARAOKEON
96 XDACS2
97 XDACS3
98 MUTE
99 MD2
100 VDD
101 GND
102 NORF
103 DFCT
104 FWON
105 LOCK
106 ARPRST
107 ARPINT
108 ARPWT
109 ARPWR
O
Not used (open)
O
Spindle motor control signal output terminal
— Ground terminal
I
Clock input terminal (27MHz)
—
Ground terminal
O
Not used (open)
O Not used (open)
I
Open/close switch (S1) (close) input terminal
I
Open/close switch (S1) (open) input terminal
I
Not used (open)
I Not used (fixed at "L")
O
Not used (fixed at "H")
O
Reset signal output to the DSD decoder (IC617) "L": reset
I
Not used (fixed at "H")
I Not used (fixed at "H")
O
Not used (open)
I
Not used (fixed at "H")
I
Not used (fixed at "H")
O Not used (open)
—
Not used (open)
—
Ground terminal
—
Power supply terminal (+3.3V)
— Not used (open)
I
Not used (fixed at "H")
I
Not used (fixed at "L")
I
Not used (fixed at "L")
I Not used (fixed at "L")
I
Not used (fixed at "H")
O
Not used (open)
O
Loading motor (M1) control signal output to the loading motor drive (IC615)
O
Muting signal output terminal "L": muting
O Spindle gain control signal output terminal
O
Not used (open)
O
Not used (open)
O
Not used (open)
O Muting signal output to the RF signal decoder (IC622)
O
Mode control signal output to the RF signal decoder (IC622)
—
Power supply terminal (+3.3V)
—
Ground terminal
I RF signal input from the RF signal decoder (IC622)
O
Defect signal output to the RF signal decoder (IC622)
I
Control signal input from the RF signal decoder (IC622)
I
FG reference clock signal input from the RF signal decoder (IC622)
O Reset signal output to the RF signal decoder (IC622) "L": reset
I
Interrupt signal input from the RF signal decoder (IC622)
I
Wait signal input from the RF signal decoder (IC622)
O
Write enable signal output to the RF signal decoder (IC622)
Description
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