Service Manual

No.
I
1/0
Pin Name
Function
~
127
1/0 i
RAD5
YRAM - A data bit 5
128
I
1/0
RAD6
YRAM - A data bit 6
129
i
110
I
RAD7
YRAM - A data bit 7
I
130
I
-
I
VDD
+5Y power supply
131
i
1/0
I
RAD8
VRAM - A data bit 8
132
I
1/0
!
RAD9
YRAM - A data bit 9
133
j 1/0
I
RADIO
I YRAM - A data bit 10
134
1/0
I
RADII
VRAM - A data bit 11
135
!
-
I
VSS GND
136
I
1/0
RADI2
VRAM - A data bit
12
137
I
1/0
l
i
RAD13
VRAM - A data bit 13
138
1/0
RAD14
YRAM - A data bit 14
139
I
1/0
RADI5
YRAM- A data bit 15
140
l
0
RCLK
YRAM -
AlB clock
141
I
I
TEST
Test mode selection (normally, connected to VDD)
142
1!0
RBDO
VRAM - B data bit 0
143
I
110
I
RBD1
YRAM - B data bit 1
144
1/0
RBD2
YRAM - B data bit 2
145
1!0
RBD3
YRAM - B data bit 3
146
J
-
vss GND
!47
I
1/0
RBD4
VRAM - B data bit 4
148
1/0
RBD5
VRAM - B data bit 5
149
i
1/0
RBD6
VRAM - B data bit 6
150
1/0
RBD7
YRAM - B data bit 7
151
-
VDD
+5V power supply
152
1/0
RBD8
YRAM - B data bit 8
153
1!0
RBD9
VRAM - B data bit 9
154
1/0
RBDIO
YRAM - B data bit 10
155
I/0 RBDI1
YRAM - B data bit
11
156
-
vss GND
157
1!0
RBDI2
VRAM- B data bit 12
!58
1/0 RBDI3
YRAM - B data bit 13
159
1/0 RBD14
YRAM - B data bit
14
160
I
1/0
RBDIS
VRAM- B data bit 15
-51-