Sony DPS-V55, Руководство по обслуживанию

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Pin No. Pin Name I/O Function
49 ED16 I/O Two-way data bus with the memory (IC503)
50 ED1 I/O Two-way data bus with the external RAM device Not used
51 ED17 I/O Two-way data bus with the memory (IC503)
52 ED2 I/O Two-way data bus with the external RAM device Not used
53 VDD — Power supply terminal (+5V)
54 VSS — Ground terminal
55 ED18 I/O Two-way data bus with the memory (IC503)
56 ED3 I/O Two-way data bus with the external RAM device Not used
57 ED19 I/O Two-way data bus with the memory (IC503)
58 ED4 I/O Two-way data bus with the external RAM device Not used
59 ED20
I/O Two-way data bus with the memory (IC503)
60 ED5
I/O Two-way data bus with the external RAM device Not used
61 ED21
I/O Two-way data bus with the memory (IC503)
62 VSS
— Ground terminal
63 ED6
I/O Two-way data bus with the external RAM device Not used
64 ED22
I/O Two-way data bus with the memory (IC503)
65 ED7
I/O Two-way data bus with the external RAM device Not used
66 ED23
I/O Two-way data bus with the memory (IC503)
67 ED8
I/O Two-way data bus with the external RAM device Not used
68 ED24
I/O Two-way data bus with the memory (IC503)
69 ED9
I/O Two-way data bus with the external RAM device Not used
70 VSS
— Ground terminal
71 ED25
I/O Two-way data bus with the memory (IC503)
72 ED10
I/O Two-way data bus with the external RAM device Not used
73 ED26
I/O Two-way data bus with the memory (IC503)
74 ED11
I/O Two-way data bus with the external RAM device Not used
75 ED27
I/O Two-way data bus with the memory (IC503)
76 ED12
I/O Two-way data bus with the external RAM device Not used
77 ED28
I/O Two-way data bus with the memory (IC503)
78 VDD
— Power supply terminal (+5V)
79 VSS
— Ground terminal
80 ED13
I/O Two-way data bus with the external RAM device Not used
81 ED29
I/O Two-way data bus with the memory (IC503)
82 ED14
I/O Two-way data bus with the external RAM device Not used
83 ED30
I/O Two-way data bus with the memory (IC503)
84 ED15
I/O Two-way data bus with the external RAM device Not used
85 ED31
I/O Two-way data bus with the memory (IC503)
86 XOE
O Output enable signal output to the memory (IC503)
87 VSS
— Ground terminal
88 CAS
O Column address strobe signal output to the memory (IC503)
89 XWE
O Write enable signal output to the memory (IC503)
90 RAS
O Row address strobe signal output to the memory (IC503)
91 to 94 EA0 to EA3
O Address signal output to the memory (IC503)
95 VSS
— Ground terminal
96 to 99 EA4 to EA7
O Address signal output to the memory (IC503)
100 EA8
O Address signal output to the external RAM device Not used (open)