SHARP CX158 Technical Report

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