Page 1
Date: Sep. 21, 1994
COLOR IMAGE SCANNER: JX610
No. : CX-158
[Service information]
CHANGES TO GAL MASK AND CIRCUIT
1.Model name: JX610
2.General: The mask of GAL (IC58) used in the control B PWB have been changed. Change in the
circuit is also needed due to this change.
3.Description: ➀ GAL20V8A of VHI20V8-S011A (IC58) has been changed to GAL20V8B. Contents
written on it are as same as before.
➁ The 13th pin of IC58 has connected to the GND due to the change above.
(The 12th pin of IC58 has connected to the 13th pin.)
* There is no problem if you apply this change (connecting IC58 13th pin to GND) to
the current GAL (GAL20V8A).
J1
(Connect the IC58 12th
pin to the 13th pin.)
+5V
24
23
22 TRD7
21 TRD6
20 TRD5
19 TRD4
18 TRD3
17 TRD2
16 TRD1
15 TRD0
14
13
(1-5H)
B/W
DIR
(1-5H)
TON7 11
TON6 10
TON5 9
TON4 8
TON3 7
TON2 6
TON1 5
TON0 4
3
2
1
12
GAL20V8B
IC58
4.Action: From August 1994 production
SHARP CORPORATION Printer and Scanner Division
Orange
C
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