VX FT MkI Motherboard Revision History

Information sourced from Mitsubishi Electric's Insight CD page (rev. 1.1.18).


Item Build
Ref
Reason for change Rev. Date
386/25 Ethernet
P/N 12164931
REV G
12207 Release of Rev G BOM 01 5/7/89
6845 Release SDP Chip Software 02 16/8/89
6823 Step IC82385 13137730, 13137830 03 1/10/89
12334 Corrections to BOM 04 31/8/89
12390 Corrections to BOM 05 31/8/89
12448 Amend Comp Quantities 06 4/9/89
12457 RAMDAC Fix IC168-19 to 0V 07 4/9/89
12514 Lift Sockets for 486 12171730 132 Way 08 9/11/89
12528 Release 82C451B 09 29/11/89
12532 CMOS 50MHz osc 10 29/11/89
12560 Add 2 Resistors to Prevent Hanging 387/Weitek 11 25/2/90
12542 Change C's to 22pF for 80C607 osc 12 27/2/90
7150 Gold Plated SIMMs 12175631, 12175731 13 15/3/90
7170 Release NGGL185VE Ethernet Collision Fix 14 12/4/90
7217
(7211)
Add 2R2 MCA Ethernet Card Fix 15 9/5/90
2936 Use Hex Inverter 12132121 - 14069 16 24/5/90
7218 MCA Wait State Fix GAL501 17 7/6/90
7228 Disqualify Brooktree for 12132921 18 22/5/90
7227 Use EQXO-105OU 19 6/6/90
3361 Disqualify TFC Crystal MCA Ethernet Card Fix 20 21/8/90
3601
3640
Change SC49, C3, C9 to 47nF 21 14/12/90
7492 Release New GAL Ethernet Collision Fix 22 17/12/90
7528 Changes to Front Panel Board 23 8/2/91
7559 Remove Ferrite Bead FE54 24 15/2/91
7632 Remove 502 Add 8392 @ IC149 25 26/4/91
7611 Uprev Security Chip 12120621 26 24/5/91
7691 "C" Step Chip Rework 27 10/5/91
15066 Change 47nF to 51nF Cap @ C3 28 30/5/91
20351 Security Software Update 29 29/7/91
Power Distribution
Board
P/N 12223731
20850 Initial release 01 16/1/92
20933 Remove FS1, FS3, FS4 fuses 02 27/1/92
Ti Front Panel
Board
P/N 14242931
11912 Initial release of Front Panel A 9/1/89
12067 Update BOM B 28/4/89
12100 Update BOM 14243331 01 22/5/89
12120 Update BOM 14242931 02 22/5/89
12127 Update BOMs 03 23/5/89
12121 Release PAL Software 04 15/5/89
12132 Add R70 - 2K2 & link to IC18 05 2/6/89
12162 06 8/6/89
12161 Add R6 2K2 07 9/6/89
12203 08 3/7/89
2203
2603
Add MOD strike label 09 28/7/89
12209 10 5/7/89
12227 11 6/7/89
12246 Release VR1.00.02 PROM 12 17/7/89
12305 Change R35, 55 13 7/8/89
6902 Release VR1.00.04 PROM 14 24/9/89
2530 Infra red receiver fix 15 4/10/89
6918 Rejected, Replace R38 - R40. See 2737 16 20/11/89
7010
7402
Release VR1.00.05 PROM 17 1/12/89
7488 Modifications for static 18 11/12/90
7599 Release VR1.00.06 PROM 19 29/3/91
20172 Fix Inverter module 20 29/7/91
15156 Fit resistors 11147521 - Q1, Q2 21 4/7/91
20332 Change EPROM 27128 to VR1.00.07 22 26/7/91
15825 Delete IC 14764731 23 1/1/93
15876 Remove D2 + D13. Add IC 11831721 24 N/A
22197 Update 131892SW to V 1.00.09 25 27/5/93
Ti Distribution
Board
P/N 14243331
11912 Initial release of distribution brd A 9/1/89
12067 Update BOMs B 28/4/89
12100 Update BOM 14243331 01 22/5/89
12120 02 22/5/89
12182 Release of Rev D 03 26/6/89
2203
2603
Add modification strike label 04 28/7/89
12378 Add fixings 05 28/8/89
6911 Cut track and link 06 21/9/89
7166 Remove C5, 7, 8, 9 07 14/3/90
3356 Add fixings to BOM 08 1/7/90
Ti Distribution
Drive Board
P/N 14252131
12100 Update BOM - Artwork etc. 01 22/5/89
12203 Add modification strike label 02 28/7/89
12378 Add fixings to BOM 03 28/8/89
20146 Add 12209530 + 11124521 + 11772371 04 24/6/91
20260 Change con. 12209530 to 12213730 05 31/7/91
20985 Rework 14252131to 14938831 1/6/92
TI Distribution
Drive Board
P/N 14938831
20985 Initial Release by R & D 01 1/6/92
21473 Add Sealing Strip to BOM 02 2/6/92
Ti Backplane
Board
P/N 14292331
12041 Initial release A 23/3/89
12120 01 22/5/89
1978 Replace IC 80387SX 02 27/2/89
12121 Release front panel, backplane PALs 03 15/5/89
2323 Add 131235TS, 131260SW 04 21/6/89
Ti Finger Board
P/N 14335131
12081 Initial release 01 27/4/89
6995 Release Rev C artwork 02 25/4/90
486 WC Daughter
Board
P/N 14335531
12081 Initial release 01 27/4/89
12371 Release new PCB 02 6/9/89
12446 Amend references use B4 step 80485 03 22/9/89
12452 Uprev prog devices 04 27/9/90
12476 Release R/W SP 144539RW 05 12/10/89
12478 Release 9 PALs 06 18/10/89
12500 Release GALs & progs 07 30/10/89
12496 Extra socket at IC9, 22 08 2/11/89
12516 Add socket at IC2 09 9/11/89
12526 Add resistor at RX, C86 10 17/11/89
12533 Release Rev B GAL IC2 11 22/11/89
12527 Add socket at IC25-40 12 22/11/89
2603 Add 11772371 mod/strike label 13 20/11/89
12555 Add 4 way connector at PL1 14 20/11/89
7145 XENIX fixes 15 28/2/90
7112 Crop pins, ins sht 16 20/3/90
7112 Crop pins, ins sht 17 20/3/90
7245 Change IC GALs WDCA013,IC82385 18 15/6/90
3627 Remove 8 ICs 12122121 19 19/1/91
7532 Remove 486 B step 20 17/1/91
20098 Change 'C' to 'D' step IC 21 21/6/91
Power distribution
Board (Melco)
P/N 14731531
13180 Initial release 01 25/3/91
13199 Update to BOM 02 19/4/91
20549 Add temporary sensor 03 24/4/91
486 Ethernet 4MB
P/N 13127231
REV G
12223 Restructure TI to Allow Testing 01 19/7/89
2519 Release 13144231 Board Without Processor 02 22/9/89
2603 Add Mod Strike Label 03 20/11/89
7029 New Cable 04 16/12/89
2743 Fit GALs G29, G32, G79 05 15/1/90
7145 XENIX Fixes 06 28/2/90
7150 Gold Plated SIMMs 12175631, 12175731 07 15/3/90
7170 Release NGGL185VE Ethernet Collision Fix 14 12/4/90
7217
(7211)
Add 2R2 MCA Ethernet Card Fix 15 9/5/90
2936 Use Hex Inverter 12132121 - 14069 16 24/5/90
7218 MCA Wait State Fix GAL501 17 7/6/90
7228 Disqualify Brooktree for 12132921 18 22/5/90
7227 Use EQXO-105OU 19 6/6/90
3361 Disqualify TFC Crystal MCA Ethernet Card Fix 20 21/8/90
486 Ethernet 8MB
P/N 131298311
2223 Restructure TI to Allow Testing 01 19/7/89
2566 Replace 386 Board with Rev G "No Processor" Board 02 13/10/89
2603 Add Mod Strike Label 03 20/11/89
7029 New Cable 04 16/12/89
2743 Fit GALs G29, G32, G79 05 15/1/90
7145 XENIX Fixes 06 28/2/90
7150 Gold Plated SIMMs 12175631, 12175731 07 15/3/90
7217
(7211)
Add 2R2 MCA Ethernet Card Fix 14 9/5/90
2936 Use Hex Inverter 12132121 - 14069 15 24/5/90
7218 MCA Wait State Fix GAL501 16 7/6/90
7228 Disqualify Brooktree for 12132921 17 22/5/90
7227 Use EQXO-105OU 18 6/6/90
3361 Disqualify TFC Crystal MCA Ethernet Card Fix 19 21/8/90
486 Ethernet 16MB
P/N 131299311
REV G
2223 Restructure TI to Allow Testing 01 19/7/89
2566 Replace 386 Board with "No Processor" Board 02 13/10/89
2603 Add Mod Strike Label 03 20/11/89
7029 New Cable 04 16/12/89
2743 Fit GALs G29, G32, G79 05 15/1/90
7145 XENIX Fixes 06 28/2/90
7150 Gold Plated SIMMs 12175631, 12175731 07 15/3/90
386/25 4MB
Ethernet
P/N 146674311
REV G
2982 01
3601
3640 Change SC49, C3, C9 to 47nF 21 14/12/90
7492 Release New GAL Ethernet Collision Fix 22 17/12/90
7528 Changes to Front Panel Board 23 8/2/91
7559 Remove Ferrite Bead FE54 24 15/2/91
7632 Remove 502 Add 8392 @ IC149 25 26/4/91
7611 Uprev Security Chip 12120621 26 24/5/91
7691 "C" Step Chip Rework 27 10/5/91
15066 Change 47nF to 51nF Cap @ C3 28 30/5/91
20351 Security Software Update 29 29/7/91
000/25 Ethernet
P/N 13144231
REV G
2519 Release 13144231 Board Without Processor 05 22/9/89
12448 Amend Comp Quantities 06 4/9/89
12457 RAMDAC Fix IC168-19 to 0V 07 4/9/89
12458 Wire Mods For 486 08 4/9/89
12514 Lift Sockets for 486 12171730 132 Way 09 9/11/89
12526 Add Resistor @ C203, 202 10 17/11/89
12528 Release 82C451B 11 29/11/89
12532 CMOS 50MHz osc 12 29/11/89
12513 Release GALs IC29,32,79, Rwk 1 13 29/11/89
12586 Replace PALs IC29,32,79, Rwk 2 14 29/1/90
2467 Replace IC145 Novell Fix 15 26/1/90
2468 Replace IC29 UNIX Fix 16 26/1/90
7145 XENIX Fixes 17 28/2/90
12542 Change C's to 22pF for 80C607 osc 18 27/2/90
7150 Gold Plated SIMMs 12175631, 12175731 19 15/3/90
7170 Release NGGL185VE Ethernet Collision Fix 20 12/4/90
7217
(7211)
Add 2R2 MCA Ethernet Card Fix 21 9/5/90
2936 Use Hex Inverter 12132121 - 14069 22 24/5/90
7218 MCA Wait State Fix GAL501 23 7/6/90
7228 Disqualify Brooktree for 12132921 24 22/5/90
7227 Use EQXO-105OU 25 6/6/90
3361 Disqualify TFC Crystal MCA Ethernet Card Fix 26 21/8/90
3403 Vendor Reworks 27 16/7/90
7402 Mods For Static 28 12/11/90
3627 Data Bus Rise Time 29 15/12/90
3601
3640
Change SC49, C3, C9 to 47nF 30 14/12/90
7492 Release New GAL Ethernet Collision Fix 31 17/12/90
7559 Remove Ferrite Bead FE54 32 15/2/91
7632 Remove 502 Add 8392 @ IC149 33 26/4/91
7611 Uprev Security Chip 12120621 34 24/5/91
7691 "C" Step Chip Rework 35 10/5/91
20351 Security Software Update 36 29/7/91
Neptune
Motherboard TI
25MHz
P/N 13123031
REV E
12144 Release Motherboard Assembly 13123031 For Revision Control 01 4/6/89
12202 Delete SIMMs & Daughter board from 13123031 02 (32) 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

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