Sony HCD-VX880AV - Page 55

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Pin No.
Pin Name
I/O Function
42, 43 BUS O Not used (open)
44 BUS XRD O Bus read signal output.
45 BUS O Not used.
46 BUS XWR O Bus write signal output.
47 8830-CS O Chip select signal output. (IC505)
48 AUDIO MUTE O Audio muting on/off control signal output terminal “L”: muting on Not used (open)
49 LOAD OUT O Loading motor drive signal output terminal Not used (open)
50 LOAD IN O Loading motor drive signal output terminal Not used (open)
51 INSW I Disc detection (load in) switch input terminal Not used (fixed at “H”)
52 OUTSW I Disc detection (load out) switch input terminal Not used (fixed at “H”)
53 MODEL1 I Destination setting terminal (fixed at “L”)
54 MODEL2 I Destination setting terminal (fixed at “L”)
55 to 61 A15 to A9 O Address signal output for the external device. Not used
62 VCC — Power supply terminal (+5 V)
63 A8 O Address signal output for the external device. Not used (open)
64 VSS — Ground terminal
65 to 72 A7 to A0 O Address signal output for the external device.
73 TEST LED O LED drive signal output for the self diagnosis indicator (D502) Normally: “L” (LED on)
74 TEST1 I Setting terminal for the test mode 1 (for VCD check)
Normally: fixed at “H” (“L”: test mode)
75 TEST2 I Setting terminal for the test mode 2 (for SERVO check)
Normally: fixed at “H” (“L”: test mode)
76 TEST3 I Setting terminal for the test mode 3 Normally: fixed at “H” (“L”: test mode)
Not used (fixed at “H”)
77 DEVICE RESET O System reset signal output to the CXD3008Q (IC101), BA5974FP (IC102) and D/A
converter (IC509) “L”: reset
78 STANDBY O Standby on/off control signal output terminal Not used (open)
79 FL CS O Chip select signal output terminal Not used (open)
80 FLBLK O Blank control signal output terminal Not used (open)
81 to 88 D7 to D0 I/O Two-way data bus with the external device Not used (open)
89 NC — Not used.
90 to 92 KEY1 to KEY3 I Key input terminal Not used (fixed at “H”)
93 NT/PAL I Video system select switch (S501) input terminal
“L”: PAL, “H”: NTSC, Center voltage: AUTO
94, 95 NC — Not used.
96 AVSS — Ground terminal (for A/D conversion)
97 NC — Not used.
98 VREF I Reference voltage (+5 V) input terminal (for A/D conversion)
99 AVCC — Power supply terminal (+5 V) (for A/D conversion)
100 NC — Not used.