Sharp AR-122E N, Service Manual

Page: 98 / 130

AR-122E/152E/153E/157E ELECTRICAL SECTION 13 - 6
86 ie1284_parad0 IN/OUT I/F board
connector
DATA bus (IEEE1284
communication port)
87 suspend OUT I/F board
connector SUSPEND signal
(USB communication
port)
88 vmin IN I/F board
connector VMIN signal (USB
communication port)
89 vpin IN I/F board
connector VPIN signal (USB
communication port)
90 rcv IN I/F board
connector RCV signal (USB
communication port)
91 oen OUT I/F board
connector OEN signal (USB
communication port)
92 vmout OUT I/F board
connector VMOUT signal (USB
communication port)
93 vpout OUT I/F board
connector VPOUT signal (USB
communication port)
94 tm2_15m (Not used)
95 VCC(PLL) 3.3V Power
96 GND(PLL) Power
97 VCC(PLL) 3.3V Power
98 GND(PLL) Power
99 pfclk IN Clock
100 VCC(CORE/DC)
3.3V
Power
101 GND(CORE/DC) Power
102 ram_data0 IN/OUT SDRAM SDRAM (Image
process page
memory) data bus
103 ram_data1 IN/OUT SDRAM SDRAM (Image
process page
memory) data bus
104 ram_data2 IN/OUT SDRAM SDRAM (Image
process page
memory) data bus
105 GND(AC) Power
106 ram_data3 IN/OUT SDRAM SDRAM (Image
process page
memory) data bus
107 ram_data4 IN/OUT SDRAM SDRAM (Image
process page
memory) data bus
108 VCC(AC) 3.3V Power
109 ram_data5 IN/OUT SDRAM SDRAM (Image
process page
memory) data bus
110 ram_data6 IN/OUT SDRAM SDRAM (Image
process page
memory) data bus
111 GND(CORE/DC) Power
112 ram_data7
IN/OUT SDRAM SDRAM (Image
process page
memory) data bus
113 ram_data15 IN/OUT SDRAM SDRAM (Image
process page
memory) data bus
114 ram_data14 IN/OUT SDRAM SDRAM (Image
process page
memory) data bus
115 VCC(CORE/DC)
3.3V
Power
116 ram_data13 IN/OUT SDRAM SDRAM (Image
process page
memory) data bus
117 ram_data12 IN/OUT SDRAM SDRAM (Image
process page
memory) data bus
PIN
No.
Signal Name IN/OUT
Connected
to
Description
118 GND(CORE/DC) Power
119 ram_data11
IN/OUT SDRAM SDRAM (Image
process page
memory) data bus
120 ram_data10 IN/OUT SDRAM SDRAM (Image
process page
memory) data bus
121 VCC(CORE/DC)
3.3V
122 ram_data9 IN/OUT SDRAM SDRAM (Image
process page
memory) data bus
123 ram_data8 IN/OUT SDRAM SDRAM (Image
process page
memory) data bus
124 GND(AC) Power
125 ram_clk OUT SDRAM SDRAM (Image
process page
memory) CLK signal
126 ram_cke OUT SDRAM SDRAM (Image
process page
memory) CKE signal
127 xram_wde OUT SDRAM SDRAM (Image
process page
memory) WDE signal
128 VCC(AC) 3.3V Power
129 GND(CORE/DC) Power
130 xram_cas OUT SDRAM SDRAM (Image
process page
memory) CAS signal
131 xram_ras OUT SDRAM SDRAM (Image
process page
memory) RAS signal
132 xram_cs OUT SDRAM (Image
process page
memory) CS signal
133 VCC(CORE/DC)
3.3V
Power
134 ram_banks0 OUT SDRAM SDRAM (Image
process page
memory) BANK signal
135 ram_banks1 OUT SDRAM SDRAM (Image
process page
memory) BANK signal
136 GND(CORE/DC) Power
137 ram_dqm0
OUT SDRAM SDRAM (Image
process page
memory) DQM signal
138 ram_dqm1 OUT SDRAM SDRAM (Image
process page
memory) DQM signal
139 ram_mad12 OUT SDRAM SDRAM (Image
process page
memory) address bus
140 VCC(CORE/DC)
3.3V
Power
141 ram_mad11 OUT SDRAM SDRAM (Image
process page
memory) address bus
142 ram_mad9 OUT SDRAM SDRAM (Image
process page
memory) address bus
143 GND(AC)
144 ram_mad8 OUT SDRAM SDRAM (Image
process page
memory) address bus
PIN
No.
Signal Name IN/OUT
Connected
to
Description