Metrologic MS2020 Stratos, Руководство по обслуживанию

Страница: 16 / 102

8
©2004 Metrologic Instruments, Inc. All rights reserved MS2020 Stratos Service Manual
INTRODUCTION
STRATOS SCANNER HISTORY PROFILE
MS2020 Stratos Prototype
February 1996
•
??
MS2020 Stratos Revision ‘A’
August 1996
•
Signal Processor 35505B; Computer 35505B and 37505C mixed.
MS2020 Stratos Revision ‘B’
November 1996
•
Same PCB’s as ‘A’ VLD Focus/Cluster bracket/Optics Bench made stronger separate
computer PCB’s for Keyboard Wedge and RS232.
•
232 driver not added to Keyboard Wedge PCB. (BASEBOARD 35505C).
MS6720 Revision ‘C’
February 1997
•
Signal Processor 35509B, with add on Motor Control PCB, Motor speed is 2500-2700 RPM.
•
Computer 35505C without Motor Control PCB, Motor speed is 3000 RPM.
•
Head Cable not changeable in field.
MS6720 Revision ‘D’
December 1997
•
Signal Processor – 35509C.
•
Computer PCB 35505D & Motor Control circuit incorporated into computer.
•
Added 49970 VCC Cable to protect from ESD.
•
Head cable is interchangeable between all communication protocols.
MS6720 Revision ‘E’
August 2000
•
SONY VLD upgraded to Samsung VLD.
MS6720 Revision ‘F’
December 2001
•
Signal Processor 37-37582 is now a new one sided design.
•
353505L board incorporated a Hollow Effects Switch on board.
•
353505L board is grounded through securing the board rather than with ground wire.
•
VLD to Laser-Welded with a flex cable.
•
VLD bracket has been replaced by plastic.
•
October 2002
•
Black anodizing no longer done.
•
Self-tapping screws used instead of PEM nuts.