Sony CSX-V58MP, Service Manual

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CSX-V58MP
Pin No. Pin Name I/O Pin Description
78 MDATA7 I/O Memory data 7 input/output
79 LDQM O SDRAM LDQM output for DRAM IC (IC520).
80 UDQM O SDRAM UDQM output for DRAM IC (IC520).
81 VDD — Power supply pin (+3.3 V)
82 MWE O SDRAM write enable output for DRAM IC (IC520).
83 VSS — Ground
84 SD-CLK O SDRAM system clock output for DRAM IC (IC520).
85 SD-CAS O SDRAM column address output for DRAM IC (IC520).
86 SD-RAS O SDRAM row address output for DRAM IC (IC520).
87 VDD — Power supply pin (+3.3 V)
88 SD-CS1 O SDRAM bank select 1 output for DRAM IC (IC520). (Not used in this set)
89 VSS — Ground
90 SD-CS0 O SDRAM bank select 0 output for DRAM IC (IC520).
91 VDD2.5 — Power supply pin (+2.5 V)
92 NC O Not used. (Open)
93 VSS — Ground
94 NC O Not used. (Open)
95 VDD — Power supply pin (+3.3 V)
96 MADDR9 O Memory address 9 output
97 VSS — Ground
98 to 100 MADDR11, 8, 10 O Memory address 11, 8 and 10 output
101 VDD — Power supply pin (+3.3 V)
102 MADDR7 O Memory address 7 output
103 VSS — Ground
104 to 106 MADDR0, 6, 1 O Memory address 0, 6 and 1 output
107 VDD — Power supply pin (+3.3 V)
108 MADDR5 O Memory address 5 output
109 VSS — Ground
110 to 112 MADDR2, 4, 3 O Memory address 2, 4 and 3 output
113 VDD — Power supply pin (+3.3 V)
114 MADDR12 O Memory address 12 output
115 VSS — Ground
116 MADDR13 O Memory address 13 output
117 VDD2.5 — Power supply pin (+2.5 V)
118 MADDR14 O Memory address 14 output
119 VSS — Ground
120 to 122 MADDR15 to 17 O Memory address 15 to 17 output
123 VDD — Power supply pin (+3.3 V)
124 MADDR18 O Memory address 18 output
125 VSS — Ground
126, 127 MADDR19, 20 O Memory address 19 and 20 output (Not used in this set)
128 ROM-CS O ROM chip select output for ROM IC (IC521).
129 RESERVED I Not used. (Fixed at L in this set)
130 NC O Not used. (Open)
131, 132 GND — Ground
133 RESERVED I Not used. (Fixed at L in this set)
134 VDD — Power supply pin (+3.3 V)
135 RESERVED I Not used. (Fixed at L in this set)
136 VSS — Ground
137 to 141 RESERVED I Not used. (Fixed at L in this set)
142, 143 VDATA0, 1 O Video data bus 0 and 1 output
144 VDD2.5 — Power supply pin (+2.5 V)
145 VDATA2 O Video data bus 2 output