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Qi 600 Rev 'E' Motherboard Revision History

Information sourced from Mitsubishi Electric's Insight CD page (rev. 1.1.30).

Item Build
Ref		 Reason For Change Rev. Date
VX1000M
P/N 14110111
REV E		 6613 First Shipped Boards 15 24/3/89
6641 By-pass RV 0 Silicon Bug Fix 16 14/4/89
6649 Weitek Chip Does Not Function Properly 17 21/4/89
6667 Disqualify "B" Step 18 21/4/89
6692 Fix For DBase IV 19 28/4/89
6698 Ethernet 20 27/4/89
6671 Potential Read Errors With 'DD' Floppy Disks 21 28/4/89
2334 Create 4MB VX1000 M/Board (Rev 30) 30 29/6/89
2203 Add Mod Strike Label 11772371 to Boards 31 29/6/89
6804 Don't Solder Wire Strap to Xtals 33 12/7/89
6806 Lift IC123 Pin 4 Add Wire Link 34 12/7/89
6807 Lift IC120 Pin 2 Add Wire Link 35 12/7/89
6808 Alternative Fix For 6772 36 12/7/89
6845 Replace 12144821 by 12120621 Sec Proc 37 18/8/89
6865 Remove 33pF Cap 38 25/8/89
6823 C Step Cache Controller 12131621, 12137121 39 18/8/89
6888 Clock Accuracy Fix Cap & Xtal Changes 40 18/8/89
6908
6892 Replace NEPE032VC Fix UNIX, Archive 41 25/9/89
6901 Reduce Video Signal Change SR28, 108 42 10/10/89
6954 Buffer 50MHz Clock Wire IC49/11-IC49/9 43 12/10/89
6974 Disable Parity Check 44 23/10/89
6970 12133621 50MHz App Only Kyocera 45 23/10/89
6975
7210 Add 2K2 R MCA Ethernet Fix 46 9/5/90
7528 Security Alert 47 8/2/91
386/20 Ethernet
P/N 14105111
REV E		 6613 First Shipped Boards 15 24/3/89
6641 By-pass RV 0 Silicon Bug Fix 16 14/4/89
6649 Weitek Chip Does Not Function Properly 17 21/4/89
6667 Disqualify "B" Step 18 21/4/89
6692 Fix For DBase IV 19 28/4/89
6698 Ethernet 20 27/4/89
6671 Potential Read Errors With 'DD' Floppy Disks 21 28/4/89
2191 Approve Toshiba - 15 12120721 (8k*8) 22 12/5/89
6712 Change RP13, 12123921 to 11622921 23 19/5/89
6695 Ref PDCL 11981 Simpler Method 24 16/5/90
6749 Improve 50MHz Clock Add 33pF 11628421 25 19/5/89
6748 XENIX Panic Errors Rev C PAL IC079 27 26/5/89
6651 Easier Fix 6641, 6631 CHMOS IV 28 26/5/89
6693 Change PALs For 387 29 2/6/89
6772 Wire Link + Rev "28" Allows CHMOS IV 30 26/6/89
2203 Add Mod Strike Label 11772371 to Boards 31 29/6/89
2325 Use 85 ns SIMMs 14102611 32
6804 Don't Solder Wire Strap to Xtals 33 12/7/89
6806 Lift IC123 Pin 4 Add Wire Link 34 12/7/89
6807 Lift IC120 Pin 2 Add Wire Link 35 12/7/89
6808 Alternative Fix For 6772 36 12/7/89
6845 Replace 12144821 by 12120621 Sec Proc 37 18/8/89
6865 Remove 33pF Cap 38 25/8/89
6823 C Step Cache Controller 12131621, 12137121 39 18/8/89
6888 Clock Accuracy Fix Cap & Xtal Changes 40 18/8/89
6908
6892 Replace NEPE032VC Fix UNIX, Archive 41 25/9/89
6901 Reduce Video Signal Change SR28, 108 42 10/10/89
7210 Add 2K2 R MCA Ethernet Fix 43 9/5/90
7228 Disqualify Brooktree for 12132921 44 22/5/90
2936 Use Hex Inventor 45 21/4/89
7227 Add 2K2 R MCA Ethernet Fix 46 6/6/90
3361 Disqualification TFC @ OS4 No Screen Fix 47 21/8/90
3601 Change SC42, C3, C9 to 47nF 51 14/12/90
3640
7528 Security Alert 52 8/2/91
7611 Uprev Security Chip 12120621 53 24/5/91
7691 "C" Step Chip Rework 54 10/5/91
20351 Security Software Update 55 29/7/91
386/25 Ethernet
P/N 14104011
REV E		 6613 First Shipped Boards 15 24/3/89
6641 By-pass RV 0 Silicon Bug Fix 16 14/4/89
6649 Weitek Chip Does Not Function Properly 17 21/4/89
6667 Disqualify "B" Step 18 21/4/89
6692 Fix For DBase IV 19 28/4/89
6698 Ethernet 20 27/4/89
6671 Potential Read Errors With 'DD' Floppy Disks 21 28/4/89
2191 Approve Toshiba 1512120721 (8k*8) 22 12/5/89
6712 Change RP13, 12123921 to 11622921 23 19/5/89
6695 Ref PDCL 11981 Simpler Method 24 16/5/90
6749 Improve 50MHz Clock. Add 33pF 11628421 25 19/5/89
6750 Improve AF32 Timing - Use 560R 11229621 26 19/5/89
6748 XENIX Panic Errors Rev C PAL IC079 27 26/5/89
6651 Easier Fix 6641, 6631 CHMOS IV 28 26/5/89
6693 Change PALs For 387 29 2/6/89
6772 Wire Link + Rev "28" Allows CHMOS IV 30 26/6/89
2203 Add Mod Strike Label 11772371 to Boards 31 29/6/89
6804 Don't Solder Wire Strap to Xtals 33 12/7/89
6806 Lift IC123 Pin 4 Add Wire Link 34 12/7/89
6807 Lift IC120 Pin 2 Add Wire Link 35 12/7/89
6808 Alternative Fix For 6772 36 12/7/89
6845 Replace 12144821 with 12120621 Sec Proc 37 18/8/89
6865 Remove 33pF Cap 38 25/8/89
6823 C Step Cache Controller 12131621, 12137121 39 18/8/89
6888 Clock Accuracy Fix Cap & Xtal Changes 40 18/8/89
6908
6892 Replace NEPE032VC Fix UNIX, Archive 41 25/9/89
6901 Reduce Video Signal Change SR28, 108 42 10/10/89
6954 Buffer 50MHz Clock Wire IC49/11 - IC49/9 43 2/10/89
6974 Disable Parity Check 44 23/10/89
6970
6975 12133621 50MHz App Only Kyocera 45 23/10/89
7210 Add 2K2 R MCA Ethernet Fix 46 9/5/90
7228 Disqualify Brooktree for 12132921 47 22/5/90
2936 Use Hex Inverter 48 21/4/89
7227 Add 2K2 R MCA Ethernet Fix 49 6/6/90
3361 Disqualification TFC @ OS4 No Screen Fix 50 21/8/90
3601 Change SC42, C3, C9 to 47nF 51 14/12/90
3640
7528 Security Alert 52 8/2/91
7611 Uprev Security Chip 12120621 53 24/5/91
7691 "C" Step Chip Rework 54 10/5/91
15066 Change 47nF to 51nF Cap @ C3 55 31/5/91
20351 Security Software Update 56 29/7/91
386/25 No Ethernet
P/N 14374131
REV E		 12216 Release "E" 386/25 No Ethernet 01 5/7/89
12144
12284 Delete Ethernet Sync Comms from 14374131 02 17/8/89
12329 Delete IC106 Change PAL NEPE032 03 22/8/89
2338 Standardise Family Revision Levels 36 12/7/89
6845 Replace 12144821 by 12120621 Sec Proc 37 18/8/89
6865 Remove 33pF Cap 38 25/8/89
6823 C Step Cache Controller 12131621, 12137121 39 18/8/89
6888 Clock Accuracy Fix Cap & Xtal Changes 40 18/8/89
6908
6892 Replace NEPE032VC Fix UNIX, Archive 41 25/9/89
6901 Reduce Video Signal Change SR28, 108 42 10/10/89
6954 Buffer 50MHz Clock Wire IC49/11 - IC49/9 43 12/10/89
6974 Disable Parity Check 44 23/10/89
6970
6975 12133621 50MHz App Only Kyocera 45 23/10/89
7210 Add 2K2 R MCA Ethernet Fix 46 9/5/90
7228 Disqualify Brooktree for 12132921 47 22/5/90
2936 Use Hex Inventor 48 21/4/89
7227 Add 2K2 R MCA Ethernet Fix 49 6/6/90
3361 Disqualification TFC @ OS4 No Screen Fix 50 21/8/90
3601 Change SC42, C3, C9 to 47nF 51 14/12/90
3640
7528 Security Alert 52 8/2/91
7611 Uprev Security Chip 12120621 53 24/5/91
15066 Change 47nF to 51nF Cap @ C3 54 31/5/91
20351 Security Software Update 55 29/7/91
6888 Clock Accuracy Fix Cap & Xtal Changes 40 18/8/89
6908
6892 Replace NEPE032VC Fix UNIX, Archive 41 25/9/89
6901 Reduce Video Signal Change SR28, 108 42 10/10/89
6954 Buffer 50MHz Clock Wire IC49/11 - IC49/9 43 12/10/89
6974 Disable Parity Check 44 23/10/89
6970 12133621 50MHz App Only Kyocera 45 23/10/89
6975
2603 Add 11772371 Mod/Strike Label 46 23/10/89
7210 Add 2K2 R MCA Ethernet Fix 47 9/5/90
7228 Disqualify Brooktree for 12132921 48 22/5/90
2936 Use Hex Inventor 49 21/4/89
7227 Add 2K2 R MCA Ethernet Fix 50 6/6/90
3361 Disqualification TFC @ OS4 No Screen Fix 51 21/8/90
7402 Mods For Static 52 12/11/90
3601 Change SC42, C3, C9 to 47nF 53 14/12/90
3640
7528 Security Alert 54 8/2/91

Content created and/or collected by:
Louis F. Ohland, Peter H. Wendt, David L. Beem, William R. Walsh, Tatsuo Sunagawa, Tomáš Slavotínek, Jim Shorney, Tim N. Clarke, Kevin Bowling, and many others.

Ardent Tool of Capitalism is maintained by Tomáš Slavotínek.
Last update: 22 Apr 2024 - Changelog | About | Legal & Contact