SHARP CX152 Technical Report

Date: Feb. 16, 1994
COLOR IMAGE SCANNER : JX-325
No. : CX-152
1.CHANGE IN THE ROM OF THE CONTROL CIRCUIT BOARD.
2.CHANGE IN THE SRAM OF THE CONTROL CIRCUIT BOARD.
3.CHANGE AND DISCONTINUANCE OF CAPACITORS IN THE CCD CONTROL CIRCUIT BOARD.
1. Change in the ROM of the control circuit board.
1.Model name: JX-325
2.General: In correction of various bugs in the system, the ROM version has been changed from
version “S121B” to version “S121C”
Change Content of change
Trouble shooting image
1
quality when installing JX32F12.
Trouble shooting the
2
disconnect / reconnect functions.
Trouble shooting SUN work
3
station start ups.
Trouble shooting the GO
4
command [GPIB], YO/BO/QO [SCSI].
Trouble shooting V2
5
command [SCSI]. Change in ROM version
6
label.
Unnecessary monochrome gray images appear when the 2400 DPI scanning area is decreased in the sub scanning direction when installing JX32F12. To alleviate this problem, the monochrome gray data processing program has been changed.
When a bus recovery failure occurs during the arbitration phase, no other recovery operations are carried out. To alleviate this problem, recovery processing is carried out at 1 ms intervals.
The processing method of the SUN work station during start ups has been corrected to alleviate the problem of work station start up failures caused by entering commands without returning a message after the message out.
A scanner error occurs when changing to RED only gamma with the GO command. To alleviate this problem the processing method during the change has been changed.
One portion of the V2 command (SCSI) data was incorrect and has been corrected.
The ROM version label has been changed from S121B to S121C.
4.Action: From 1994 January production.
SHARP CORPORATION Printer and Scanner Division
1/3
Orange
C
2. Change in the SRAM of the control circuit board.
1.Model name: JX325
2.General: There has been a production halt of the old version of the SRAM (VHiCXK 581001M).
In accordance with the production halt, a new version of the SRAM (VHiCXK 581000A) has been employed.
3.Description: IM SRAM VHiCXK581001M has been changed to VHiCXK581000A.
4.Action: From 1994 January production.
3. Change and discontinuance of capcitors in the CCD control circuit board.
1.Model name: JX-320, JX-325, JX-32F3
JX-320, JX-325
2.General: Capacitors (C8, 11, 14) have been discontinued in the CCD circuit board to improve productivity. In addition, a mistake in the parts code of a capacitor used in the control circuit board 10pF has been corrected.
3.Description: Three capacitors (RC-SZ7003XCZZ, 25WV 4.7µF) used in the CCD circuit board
(C8, 11, 14) have been discontinued.
The parts code of two capacitors used in the control circuit board (model JX-325:
C25, 26, model JX-320: C32, 33) has been changed from VCCSTQ1HL100J to VCCSTQ1HL100D (50WV, 10pF).
11-5. CCD board.
11-3. Control board.
11-3-1. Main control circuit.
2/3
RC-SZ7003XCZZ (25WV, 4.7µF) in
locations C8, 11, 14 have been discontinued.
Changed to VCCSTQ1HL100D.
4.Action: From 1994 January production.
Ref.
Model
No.
1
2 6 -94 VHICXK581001M VHICXK581000A BE
JX-325
3
JX-320
<Interchange>
1. Interchangeable. 4. Not interchangeable.
2. C urr e nt t y pe c a n be u s ed i n p la ce of new ty pe . New ty pe cann ot be us ed i n place of curr ent type .
3. C urre nt ty pe cann ot be used i n place of new ty pe. New t y pe c a n be u sed in p lac e of c u r ren t ty p e.
Parts marked with “ ” is important for maintaining the safety of the set. Be sure to replace these parts with
specified ones for maintaining the safety and performance of the set.
name
Version P/G No.
6 -128 VHI27512S121B VHI27512S121C BA ROM (S121C) ’94/1 3 IC42
6 -25
All
6 -26
6 -32
6 -33
!
Current parts New parts
Parts code Parts code
VCCSTQ1HL100J VCCSTQ1HL100D AA
VCCSTQ1HL100J VCCSTQ1HL100D AA
Price
rank
5. Interchangeable if replaced with same types of relate d parts in use .
6. Others.
Parts name
SRAM (CXK581000A)
Capacitor (50WV 10pF)
Capacitor (50WV 10pF)
Effec­tive time
’94/1 1 IC3
’94/1 3
’94/1 3
Inter­change­ability
Note
3/3
Loading...