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1986-12-25
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┌────────────────────────────────────────────────────────────────────────┐
│ AT&T PC6300 Technical Bulletins │
├────────────────────────────────────────────────────────────────────────┤
┌────────────────────────────────────────────────────────────────────┐
│ │
│ │
│ AT&T PC6300 TECHNICAL BULLETIN │
│ │
│ SUBJECT: MS-DOS Command Notes │
│ PROVIDED BY: │
│ │
└────────────────────────────────────────────────────────────────────┘
BACKUP
The backup command will not work properly if programs are
loaded in memory such as context switch and em4410.
When indicating a / option using backup, you must leave a
space between the drive indication and the / option. An
example of the syntax is "backup C:*.* A: /s", if you don't
put the space in, only the root directory will be backed up.
The backup command will usually backup even copy-protected
software (i.e. WORD), but not always, OVERHEAD EXPRESS
can't be backed up successfully.
You can use this chart and the CHKDSK command to determine
approximately how many floppy disks you need to backup a
hard disk. For a 20mb disk, just double the figures.
Hardisk memory used Floppies needed
10mb...............................30
8.3mb..............................25
6.6mb..............................20
5mb................................15
3.3mb..............................10
1.6mb...............................5
FORMAT
Format /1 will format a disk to be single sided, but only
160k (DOS 2.11 REL. 1.1) losing 20k. The old DOS doesn't
have this problem.
In the DOS manual it states that /s has to be the last
entry on the line when using format, this isn't true. The
manual also says the /s copies two hidden sys files, this
isn't true either, it copies IBMBIO.COM and IBMDOS.COM.
/* But these are hidden system files normally */
FORMAT in DOS has a limit of 30 meg. To excede this
requires a separate formatting utility and device
driver software.
MODE
Undocumented in the manual is the /o option with mode.
This will return the current status of all COM and LPT
ports as well as the mode of the monitor.
The instructions on page 5-59 of the DOS manual are
wrong. When using MODE LPT1: x,y the only acceptable
options are 80 and 132 for x, and 6 or 8 for y.
When redirecting using the MODE command you must use
a colon after LPT1. An example would be "mode lpt1:=com1".
The 't' option with mode only works in conjunction
with the 'r' and the 'l'. For example "mode,r,t".
RECOVER
When you use the RECOVER command, any file recovered
is renamed FILExxxx (starting at FILE0001). If you did
this without naming a particular file (i.e. RECOVER D:)
all files will be renamed, if you didn't backup or copy
the files previously, you will have a near impossible
task of renaming (using) the files, as only ascii
files will be readable.
RESTORE
Subdirectories previously backed up (within the
subdirectory) must first be created before using RESTORE
(RESTORE will not create the subdirectory). Otherwise,
RESTORE will prompt for all of the disks, but no files
will be restored. Note, however, that RESTORE will
create subdirectories and restore files to a virgin
(nothing on it) hard disk.
SORT
The maximum file size that can be sorted is 63k.
The proper syntax for the SORT command is ............
"SORT[/R][+n] <file >file1", the default for column no.
is 1. There are only 2 spaces in the command line,
before <file, and after <file.
TREE
If you use the /F option with a printer toggled on,
the individual file names will not print out on the
printer. You would have to redirect the output to a
file, and then print the file out. However, when doing
this, all file names are concatenated together,
removing tabs, carriage returns, and line feeds.
FORMAT.COM
The following modification will cause the FORMAT
command to assume the A: drive should you forget and
leave the drive specification off. It allows use of
/o /v /s options.
C>debug format.com
-E174 B4 09 B0 00
-w
Writing 19EC bytes
-q
C>
DIRECTORIES
When formatting in DOS, the device driver used sets a
maximum number of directory entries (root only)
as follows......
FLOPPY ss............64 ds...........112
HARD 10 meg.......512 20 meg......1024
┌────────────────────────────────────────────────────────────────────┐
│ │
│ │
│ AT&T PC6300 TECHNICAL BULLETIN │
│ │
│ SUBJECT: 1.21 ROM Low Level Format Routine for the PC6300 │
│ PROVIDED BY: │
│ │
└────────────────────────────────────────────────────────────────────┘
If you get the message fixed disk not ready when you
try to format, and the resident diagnostics show it
present (i.e. any message but "Fixed Disk Not
Present"), there is a low level formating routine in
the Rom Bios which might fix it. This routine can be
called using Debug in the following manner:
A> debug (cr)
- a (cr)
XXXX:0100 call f000:c038 (cr)
XXXX:0105 int 20h (cr)
XXXX:0107 (cr)
- g (cr)
Fixed Disk Formating Utility
All data on the specified fixed disk will be erased.
Enter fixed disk number (1 to 8) or Q to quit:___
(note 1 to 8 corresponds to
c:, d: .....)
Formating Fixed Disk
Format is complete
Proceed with FDISK and FORMAT
Program terminated normally
- q (cr)
A>
Note the Rom 1.21 will not give the Program Terminated
message and you will have to reboot after the proceed
message.
┌───────────────────────────────────────────────────────────────────┐
│ │
│ AT&T PC6300 TECHNICAL BULLETIN │
│ │
│ SUBJECT: Low Level Format for ROM 1.43 │
│ PROVIDED BY: │
│ │
└───────────────────────────────────────────────────────────────────┘
FIRST OF ALL:
1. A low level format will destroy everything on the hard drive.
Are you sure you want to do this???
2. As of 8/20/86, ROM 1.43 is available through AT&T National
Parts at 800-222-7278. The comcode (part number) is 105203780,
and the price is $35.00.
The following low level routine for ROM 1.43 will NOT display or
return messages. The only indication that the format is working
will be the hard drive LED. This routine is directly programming
the HDU Controller. For further information, consult the SYSTEM
PROGRAMMERS GUIDE.
- Boot off the MS-DOS System Diskette
- Once booted, insert Supplimental Diskette
- Enter "DEBUG". The following table represents the input and
output of the commands.
ENTER COMMAND RESPONSE SHOULD BE
───────────── ──────────────────
DEBUG -
i 321 CO
-
o 322 0 -
i 321 CD
-
o 320 04 -
o 320 00 -
o 320 00 -
o 320 00 -
o 320 06 -
o 320 07 -
At this point, the drive activity LED should come on, and the
drive will begin to format. When the process is complete, the
LED will go out.
Now reboot from the MS-DOS System Diskette and proceed with
FDISK and FORMAT.
┌───────────────────────────────────────────────────────────────┐
│ │
│ AT&T PC6300 TECHNICAL BULLETIN │
│ │
│ SUBJECT: Motherboard Dip Switch Settings for 1.43 ROM BIOS │
│ PROVIDED BY: │
│ │
└───────────────────────────────────────────────────────────────┘
THE FOLLOWING SWITCH SETTINGS ARE FOR ROM 1.43 ONLY!!
┌─────────────────────────────────────────┬─────────────────────┐
│ MOTHERBOARD SWITCH BANK 0 - LOCATION 7T │ 1=ON 0=OFF │
├───┬───┬───┬───┬───┬───┬───┬───┬─────────┴─────────────────────┤
│SW1│SW2│SW3│SW4│SW5│SW6│SW7│SW8│ FUNCTION │
├───┼───┼───┼───┼───┼───┼───┼───┼───────────────────────────────┤
│ 0 │ 1 │ 1 │ 1 │ X │ X │ X │ X │ 128KB RAM on Motherboard │
├───┼───┼───┼───┼───┼───┼───┼───┼───────────────────────────────┤
│ 1 │ 0 │ 1 │ 1 │ X │ X │ X │ X │ 256KB RAM on Motherboard │
├───┼───┼───┼───┼───┼───┼───┼───┼───────────────────────────────┤
│ 1 │ 1 │ 0 │ 1 │ X │ X │ X │ X │ 512KB RAM - 256K on Motherbrd │
│ │ │ │ │ │ │ │ │ 256K on Expansion │
├───┼───┼───┼───┼───┼───┼───┼───┼───────────────────────────────┤
│ 0 │ 1 │ 0 │ 1 │ X │ X │ X │ X │ 640KB RAM - 256K on Motherbrd │
│ │ │ │ │ │ │ │ │ 384K on Expansion │
├───┼───┼───┼───┼───┼───┼───┼───┼───────────────────────────────┤
│ 0 │ 1 │ 0 │ 0 │ X │ X │ X │ X │ 640KB RAM on MB - 128K Bank 0 │
│ │ │ │ │ │ │ │ │ 512K Bank 1 │
├───┼───┼───┼───┼───┼───┼───┼───┼───────────────────────────────┤
│ 0 │ 1 │ 1 │ 0 │ X │ X │ X │ X │ 640KB RAM on MB - 512K Bank 0 │
│ │ │ │ │ │ │ │ │ 128K Bank 1 │
├───┼───┼───┼───┼───┼───┼───┼───┼───────────────────────────────┤
│ 1 │ 1 │ 1 │ 0 │ X │ X │ X │ X │ 512KB RAM on MB - 512K Bank 0 │
├───┼───┼───┼───┼───┼───┼───┼───┼───────────────────────────────┤
│ X │ X │ X │ 1 │ X │ X │ X │ X │ ONLY 64KB RAM Chips used │
├───┼───┼───┼───┼───┼───┼───┼───┼───────────────────────────────┤
│ X │ X │ X │ 0 │ X │ X │ X │ X │ 256KB RAM Chips used anywhere │
├───┼───┼───┼───┼───┼───┼───┼───┼───────────────────────────────┤
│ X │ X │ X │ X │ 1 │ X │ X │ X │ 8087 NDP not present │
├───┼───┼───┼───┼───┼───┼───┼───┼───────────────────────────────┤
│ X │ X │ X │ X │ 0 │ X │ X │ X │ 8087 NDP present │
├───┼───┼───┼───┼───┼───┼───┼───┼───────────────────────────────┤
│ X │ X │ X │ X │ X │ 1 │ X │ X │ 8250 Async Comm Chip present │
├───┼───┼───┼───┼───┼───┼───┼───┼───────────────────────────────┤
│ X │ X │ X │ X │ X │ 0 │ X │ X │ Z8530 SCC present │
├───┼───┼───┼───┼───┼───┼───┼───┼───────────────────────────────┤
│ X │ X │ X │ X │ X │ X │ X │ 1 │ Bank 1 on Motherboard empty │
├───┼───┼───┼───┼───┼───┼───┼───┼───────────────────────────────┤
│ X │ X │ X │ X │ X │ X │ X │ 0 │ Bank 1 on Motherboard full │
└───┴───┴───┴───┴───┴───┴───┴───┴───────────────────────────────┘
┌─────────────────────────────────────────┬─────────────────────┐
│ MOTHERBOARD SWITCH BANK 1 - LOCATION 7W │ 1=ON, 0=OFF │
├───┬───┬───┬───┬───┬───┬───┬───┬─────────┴─────────────────────┤
│SW1│SW2│SW3│SW4│SW5│SW6│SW7│SW8│ FUNCTION │
├───┼───┼───┼───┼───┼───┼───┼───┼───────────────────────────────┤
│ 1 │ X │ X │ X │ X │ X │ X │ X │ 48 TPI Floppy Drives (360KB) │
├───┼───┼───┼───┼───┼───┼───┼───┼───────────────────────────────┤
│ 0 │ X │ X │ X │ X │ X │ X │ X │ FUTURE USE ONLY │
├───┼───┼───┼───┼───┼───┼───┼───┼───────────────────────────────┤
│ X │ 1 │ X │ X │ X │ X │ X │ X │ Slow start up speed - MFDU │
├───┼───┼───┼───┼───┼───┼───┼───┼───────────────────────────────┤
│ X │ 0 │ X │ X │ X │ X │ X │ X │ FUTURE USE ONLY │
├───┼───┼───┼───┼───┼───┼───┼───┼───────────────────────────────┤
│ X │ X │ 1 │ X │ X │ X │ X │ X │ Indigenous HDU ROM │
├───┼───┼───┼───┼───┼───┼───┼───┼───────────────────────────────┤
│ X │ X │ 0 │ X │ X │ X │ X │ X │ External HDU ROM │
├───┼───┼───┼───┼───┼───┼───┼───┼───────────────────────────────┤
│ X │ X │ X │ 1 │ X │ X │ X │ X │ Fast scroll rate │
├───┼───┼───┼───┼───┼───┼───┼───┼───────────────────────────────┤
│ X │ X │ X │ 0 │ X │ X │ X │ X │ Slow scroll rate │
├───┼───┼───┼───┼───┼───┼───┼───┼───────────────────────────────┤
│ X │ X │ X │ X │ 1 │ 1 │ X │ X │ EGA or video Cntrllr Disabled │
├───┼───┼───┼───┼───┼───┼───┼───┼───────────────────────────────┤
│ X │ X │ X │ X │ 0 │ 1 │ X │ X │ 40x25 color mode │
├───┼───┼───┼───┼───┼───┼───┼───┼───────────────────────────────┤
│ X │ X │ X │ X │ 1 │ 0 │ X │ X │ 80x25 color mode │
├───┼───┼───┼───┼───┼───┼───┼───┼───────────────────────────────┤
│ X │ X │ X │ X │ 0 │ 0 │ X │ X │ 80x25 monichrome mode │
├───┼───┼───┼───┼───┼───┼───┼───┼───────────────────────────────┤
│ X │ X │ X │ X │ X │ X │ 1 │ 1 │ 1 Floppy Drive │
├───┼───┼───┼───┼───┼───┼───┼───┼───────────────────────────────┤
│ X │ X │ X │ X │ X │ X │ 0 │ 1 │ 2 Floppy Drives │
├───┼───┼───┼───┼───┼───┼───┼───┼───────────────────────────────┤
│ X │ X │ X │ X │ X │ X │ 1 │ 0 │ 3 Floppy Drives (2 physical) │
├───┼───┼───┼───┼───┼───┼───┼───┼───────────────────────────────┤
│ X │ X │ X │ X │ X │ X │ 0 │ 0 │ 4 Floppy Drives (2 physical) │
└───┴───┴───┴───┴───┴───┴───┴───┴───────────────────────────────┘
┌────────────────────────────────────────────────────────────────┐
│ │
│ AT&T PC6300 TECHNICAL BULLETIN │
│ │
│ SUBJECT: Hard Disk Drive Parameter Table (ROM 1.21 and 1.43) │
│ PROVIDED BY: │
│ │
└────────────────────────────────────────────────────────────────┘
┌───────────────┐
│ ROM BIOS 1.21 │
└───────────────┘
DTC CONTROLLER
DRIVE #0 DRIVE #1
DRIVE TYPE 12345678 12345678
─────────────────────────────────── ──────── ────────
0. 5MB ..CC..CC CC..CC..
1. 24MB ..OC..CC OC..CC..
2. 15MB ..CO..CC CO..CC..
3. 10MB (default) ..OO..CC OO..CC..
4. 5MB - Syquest SQ306 ..CC..OC CC..OC..
5. 30MB - CDC Wren I ..OC..OC OC..OC..
6. 20MB - Seagate ST225, CMI 4426 ..CO..OC CO..OC..
7. 20MB - Miniscribe 3425, OPE XM 5220 ..OO..OC OO..OC..
8. 20MB - CMI 4426 ..CC..CO CC..CO..
9. NOT SPECIFIED ..OC..CO OC..CO..
A. NOT SPECIFIED ..CO..CO CO..CO..
B. NOT SPECIFIED ..OO..CO OO..CO..
C. NOT SPECIFIED ..CC..OO CC..OO..
D. NOT SPECIFIED ..OC..OO OC..OO..
E. NOT SPECIFIED ..CO..OO CO..OO..
F. NOT SPECIFIED ........ OO..OO..
C = CLOSED = ON
O = OPEN = OFF
┌───────────────┐
│ ROM BIOS 1.43 │
└───────────────┘
DTC CONTROLLER WD CONTROLLER
DRIVE #0 DRIVE #1 DRIVE #0 DRIVE #1
DRIVE TYPE 12345678 12345678 12345678 12345678
───────────────────────── ──────── ──────── ──────── ────────
0. 30MB - CDC Wren I ..CC..CC CC..CC.. ..CC..CC CC..CC..
1. 20MB - Seagate ST225,
CMI 4426 ..OC..CC OC..CC.. ..OC..CC OC..CC..
2. 20MB - Tandon TM 262 ..CO..CC CO..CC.. ..CO..CC CO..CC..
3. 10MB (default) ..OO..CC OO..CC.. ..OO..CC OO..CC..
4. 20MB - Miniscribe 3425,
OPE XM 5220 ..CC..OC CC..OC.. ..CC..OC CC..OC..
5. 30MB - CDC Wren I ..OC..OC OC..OC.. ..OC..OC OC..OC..
6. 20MB - Seagate ST225,
CMI 4426 ..CO..OC CO..OC.. ..CO..OC CO..OC..
7. 20MB - Miniscribe 3425,
OPE XM 5220 ..OO..OC OO..OC.. ..OO..OC OO..OC..
8. 40MB - CMI 6426 ..CC..CO CC..CO.. ..CC..CO CC..CO..
9. 45MB - Miniscribe 6053 ..OC..CO OC..CO.. ..OC..CO OC..CO..
A. 40MB - Tandon TM 755 ..CO..CO CO..CO.. ..CO..CO CO..CO..
B. 51MB - CDC Wren II 94205 ..OO..CO OO..CO.. ..OO..CO OO..CO..
C. 67MB - CDC Wren II ..CC..OO CC..OO.. ..CC..OO CC..OO..
D. 68MB - Micropolis 1325,
Miniscribe 6085,
Seagate 4085 ..OC..OO OC..OO.. ..OC..OO OC..OO..
E. 40MB - Seagate ST251 ..CO..OO CO..OO.. ..CO..OO CO..OO..
F. Drive #0 ONLY, no #1 ........ OO..OO.. ........ OO..OO..
C = CLOSED = ON C = JUMPER ON
O = OPEN = OFF O = JUMPER OFF
┌───────────────────────────────────────────────────────────────────────┐
│ │
│ AT&T PC6300 TECHNICAL BULLETIN │
│ │
│ SUBJECT: AT&T Personal Computer Parts List │
│ PROVIDED BY: │
│ │
└───────────────────────────────────────────────────────────────────────┘
PC6300 PARTS LIST
COMCODE PEC Code
MS-DOS 2.11 Rel 2.0 845655158 1021-D01
MS-DOS 3.1 845657683 1021-009
PC6300 User's Guide 403318991
GW-Basic User's Guide 403319007
PC6300 Service Manual 403319031
PC6300 System Programmers Guide 403319015
PC6300 Tech Reference Manual 403319023
CPU1 403351406 3703-010
CPU1E 403846702 3703-E10
CPU1 MOD-2 403973944 3703-011
CPU1Z 405168816 3703-Z13
CPU2 403351414 3703-020
CPU2E (Soldered) 403846694 3703-E20
CPU2E MOD-2 (Socketed) 403973951 3703-E21
CPU2E/640 405193418 3703-E23
CPU2Z 405168832 3703-Z23
CPU3 403351422 3703-030
CPU3U/640 403968613 3703-040
CPU3/256K MEM BRD 403973928 3703-050
CPU3U/640 (128K) 405193442 3703-053
CPU3X 403973910 3703-060
CPU3X/640 405193467 3703-063
CPU3Z 405168824 3703-Z63
Power Supply LA16 403351240
Power Supply LA16B 405204900
Fan Assembly 403351257
Motherboard 128K BA139/10.1 405055161
Motherboard 128K BA139/12 405018557
Motherboard 256K BA135/10.1 405055179
Motherboard 256K BA135/12 405018581
Motherboard 256K BA161/00 405055195
Motherboard 256K BA161/01 405055203
Motherboard 512K BA155/00 405055229
Motherboard 640K BA189 405203019
10MB HDU (Tandon) 405018730
10MB HDU (OPE-1) 405018763
10MB HDU (OPE-2) 405018789
10MB HDU (Seagate) 405018805
20MB HDU (Seagate) 405018839 37575
20MB HDU (Miniscribe) 405018847
20MB HDU (OPE) 405117722
CRT Controller P-2 GO317 405055237
CRT Controller P-4 GO318 405018631
CRT Controller P-8 GO380 405203027
HDU Controller (DTC) 403350952
HDU Controller (WD WX2) 405023011
HDU Controller (WD WX1) 405214669
Hard Disk Controller (West Dig) 405023011
Monitor 310 B/W 403351364 37310
Monitor 311 Green 403351380 37311
Monitor 313 Green 403351349 37313
Monitor 313 Mod-2 405004755 37313
Monitor 317 Color 403351331 37317
Monitor 318 Color 403351356 37318
Monitor 318 Mod-2 405004763 37318
Monitor 318 Hitachi 405004748 37318
Bus Converter (2 16bit slots) 403350986
Bus Converter (3 16bit slots) 405018664
360K MFDU (OPE) 403319080 37305
360K MFDU (Toshiba-1)(DOOR) 403351430
360K MFDU (Toshiba-2) 405055278
Keyboard Model 301 403351281 37301
Keyboard Model 301 Mod-2 405162579 37301
Keyboard ROM v1.1 (8741) 405018607
Keyboard ROM v2.0 (2716) 405018599
256K Memory Expansion Board 403351299 37304
128K Chip Set 403351273 37303
512K Chip Set 405023052 37561
Display Enhancement Board 403350945 37306
Color Extension Cables 403309545 2724-72K
Monichrome Extension Cables 403351315 2724-70K
8087-2 Math Co-Processor 403768690 37322
Power Cable 403816739
MFDU & HDU Power Cable 403816762
Video Controller Power Cable 403816747
CPU2 MFDU Signal Cable 403816754
CPU3 MFDU Signal Cable 403846918
HDU Signal Cable 403846892
HDU Control Cable 403846900
Motherboard Power Cable 403846975
Color Monitor Power Cable 403846967
HDU Expansion Power Cable 403846959
AST CC-432 Board 403716350
AST PCOX Board 403716368
HDU Face Plate 403908130
ROM Bios 1.21 845654029
ROM Bios 1.43 105203780 (not avail yet)
External Security Lock 405078585 37332
Stop Lock III 405078577 37333
Mouse 403768666 37319
Video Display Adapter 1.1 845654003 37340
Image Capture Board 845654011 37341
Video Bridge Adapter 405067281 3910-020
Communications Manager I 403308695 37342
Communications Manager II 845655141 37331
PC Interface Etherlink Assembly 37320
PC Interface Basic Network 37323
PC Interface Network Extend 37324
SSI Irma Emulation Card 524101276
4410 Terminal Emulator 1020-005
Context Switch 1020-006
PC6300 PC INT RS232 1020-008
Tango PC Software 1020-011
513 Terminal Emulator 1020-013
Video Catalog 1021-014
Informix 1022-007
File It! 1022-008
Overhead Express 1022-702
Remote Enhanced Cap 1023-F01
Remote Cap 1023-F02
AT&T Retail Manager 1026-B01
PC6300 Mortgage Line 1027-B00
PC6300+ PARTS LIST
COMCODE PEC Code
MS-DOS 3.1 845657683 1021-009
UNIX Sys V Rel 2 845657758 1111-UX1
UNIX Sys V S/W Development Set 845657774 1111-DT1
PC6300+ Getting Started Manual 845657079 1673-101
PC6300+ Service Manual 845657113 1673-102
PC6300+ Tech Reference Manual 845657048 1673-100
PC6300+ System Programmers Guide 845657899
PC6300+ UNIX Programmers Ref. 845657121
PC6300+ Integrated S/W Dev Guide 105152789
CPU21 1.2mb and 360k MFDU 405023086 3705-101
CPU21 Gen-4.5 405117649 3705-101
CPU21 Gen-5.0 405211533 3705-101
CPU22 1.2mb MFDU and 20mb HDU 405023102 3705-102
CPU22 Gen-4.5 405117656 3705-102
CPU22 Gen-5.0 405117680 3705-102
CPU23 360k MFDU and 20mb HDU 405036880 3705-103
CPU23 Gen-4.5 405117664 3705-103
CPU24 1.2mb MFDU only 405076423 3705-104
CPU24 Gen-4.5 405117672 3705-104
CPU25 360k MFDU only 405076431 3705-105
2MB Mem Exp Board (with 512K) 405120858 37555
Power Supply 403351240
Motherboard 512K 405022955
Bus Converter Board 405022997
Hard Disk Controller (West Dig) 405023011
Video Controller 405022971
Monichrome Monitor 403351349 37313
Color Monitor model 318 403351356 37318
Keyboard model 302 405007683 37551
Floppy Drive 360K 403319080 37305
Floppy Drive 1.2MB 405007675 37558
Hard Disk Unit 20MB 405018839 37575
512K Chip Set 405023052 37561
128K Chip Set 403351273 37303
Upgrade Kit (6300 to 6300+) 405023037 37569
Display Enhancement Board 403350945 37306
AST CC-432 Board 403716350
Comm Manager Board 103966065 37331
Mouse 403768666 37319
80287-3 Coprocessor 405023078 37565
60MB Tape Expansion Unit 405117706 37570
60MB Tape / 20MB HDU 405117714 37571
Fan Assembly 403351257
Power Cable 403816739
MFDU and HDU Power Cable 403816762
Monichrome Monitor Power Cable 403816747
Color Monitor Power Cable 403846967
HDU Expansion Power Cable 403846959
Informix Relational Database 1111-RDB
C-ISAM 1111-ISM
RM/Cobol 1111-CB2
RM/Cobol Runtime Module 1111-CBR
Paint Power 1111-PT2
Paint Power Plus 1111-PT1
RM/Fortran 1111-FO4
CrystalWriter Plus 1111-CWP
Professional Writer Package 1111-PWP
File-It! 1111-FIT
UltraCalc 1111-UCL
PRINTER PARTS LIST
435 Plotter Parts COMCODE PEC Code
435 Plotter 403815327 3330-435
Pen Motor/Encoder Assy 403815657
Paper Motor/Encoder Assy 403815665
Circuit Card - RS232 403815335
478/479 Printer Parts COMCODE PEC Code
478 Printer 500066634 3330-478
479 Printer 500066642 3330-479
Ribbon Cartridge (6 pack) 8230-050
Printhead Assembly 524552007
Terminal Control Card 524109378
Print Engine Drive Card 524109469
Switch & Display Card 524109410
Power Supply Card 524109683
Print Engine (478) 524270006
Print Engine (479) 524270014
Control Panel (478) 524550837
Control Panel (479) 524550845
477 Printer Parts COMCODE PEC Code
477 Deluxe Color Printer 404077083 3330-477
Operator Panel 404077323
Sheet Feeder, 1 bin 404077141 33020
Sheet Feeder, 3 bin 404077166 33021
ROM Font Cartridge 33022
Orator 04 404077174
Light Italic 05 404077182
Letter Gothic 06 404077190
Scientific 07 404077208
PC6300 Cable (Parallel) 524274255 2724-89G
Pedestal with Casters 524274214 9308
Paper Rack 524274222 9308
Dolly 524274230 9308
477 Black Ribbon 404077091 8230-065
477 Color Ribbon 404077109 8230-066
477 Transparency Ribbon 404077117 8230-067
477 Transparencies (50/box) 404077125 8102-001
Platen Assembly 404077232
Power Board 404077273
Interface Board 404077281
Main Board 404077299
Fan Assembly 404077331
455 Printer Parts COMCODE PEC Code
455 Printer (Qume 11) 403716509 3330-455
Centronics Parallel Interface 403716574 30462
IBM Parallel Interface 403716566 30461
Serial RS232-C Interface 403716558 30460
Tractor Feed 403716517 30455
Sheet Feeder, 1 bin 403716538 30456
Sheet Feeder, 2 bins & envelope 403716541 30457
Paper Basket 403716582 30465
Noise Reduction Cover 403716590 30466
Ribbon Cartridge (6 pack) 403716600 8290-455
Bumper, Rear Hammer 403716996
Hammer Assembly 403716707
Felt, Guide Wipe 403717176
Lever Arm, Feed Roller Shaft 403717093
Ribbon Cassette Latch 403716214
Card Guide 403716731
Hammer Armature Assembly 403716699
Carriage Motor/Encoder Assembly 403716681
Platen Knob 403716036
Front Panel Assembly 403716715
Carriage Assembly 403716640
Timing Belt, Grey 403716970
Logic Card 403716957
Power Supply 403716665
Platen Assembly 403716673
470 Printer Series Parts COMCODE PEC Code
470 Printer 403318967 3330-470
471 Printer 403818503 3330-471
473 Printer 403318959 3330-473
474 Printer 403818487 3330-474
475 Printer 403318942 3330-475
476 Printer 403818495 3330-476
470/471 CPU Board 403848104
473/474 CPU Board 403848096
475/476 CPU Board 403848112
Print Head 403318975
Ribbon Cartridge (6 pack) 403318934
457/458 Printer Parts COMCODE PEC Code
457 Printer 403716491 3330-457
458 Printer 403716616 3330-458
Autosheet Feed, 1 Bin 403716475 38476
Autosheet Feed, 2 Bin 403716467 38477
Tractor Feed 403716483 38475
Ribbon Cart (4 pack, hi qual) 403716459 8290-M5X
Ribbon Cart (4 pack, long life) 403716442 8290-FAB
Ribbon Mtr 403716822
Console 403717002
Logic Board 403716723
Power Filter Board 403716772
Transport Motor 403717069
Interface Board - Parallel 403716798
Interface Board - Serial 403716806
Line Space Motor 403717051
End Paper Photosensor 403717143
Carriage Drive Belt 403716988
Lever Pressure Roller 403716921
Paper Feed Knob 403716756
End Ribbon Photosensor 403716830
Sensor Micro for Carr Movement 404717085
Cover Open Microswitch 403716742
Carriage Group 403718190
Platen 403718224
Cover Kit 403717366
Transformer 403717614
Miscellaneous Kit 403717374
┌────────────────────────────────────────────────────────────────────┐
│ │
│ │
│ AT&T PC6300 TECHNICAL BULLETIN │
│ │
│ SUBJECT: All About ROM BIOS 1.43 │
│ PROVIDED BY: │
│ │
└────────────────────────────────────────────────────────────────────┘
The following is a list of enhancements added in BIOS 1.43.
1. Support for a larger repertoire of hard disks
2. Support for Western Digital Hard Disk Controller, in addition
to the DTC Controller.
3. Support for IBM's Enhanced Graphics Adapter (EGA).
4. Operation without a Display Controller Board.
5. Remote boot from a Local Area Network, such as STARLAN or IBM
PC Network.
6. Support for light pens.
7. Resident diagnostics for the Numeric Coprocessor 8087.
In addition to the above enhancements, a number of problems reported
in BIOS 1.21 have been corrected in this release. In particular, the
following problem areas are improved:
1. ROM BIOS Check Sum Verification.
2. Reporting of memory parity errors for certain memory
configurations.
3. Multiple Disk recognition, in particular, operation of the
Mountain Expansion Box for the PC6300.
4. Keyboard buffer overflow due to excessive mouse movement or
rapid keystrokes.
5. Time and Date service routine.
6. Operation of IBM and Hercules Monochrome Video Cards.
7. Operation of CGA composite video.
8. 8350 Communication Controller Recognition on power up.
9. Timeout for the second communication port.
10. Control Break Interrupt handling.
11. Unexpected Interrupts handling.
The differences between the BIOS version 1.21 and 1.43 are:
HARD DISKS:
1. The Hard Disk Controller code now supports the Western
Digital and DTC Controller.
2. The HDU Parameter Table now includes parameters for 16
hard disks, some of which are duplicate entries to ensure
backward compatibility with the switch settings.
3. The hard disk driver code, INT 13, has been substantially
improved.
4. A direct call to the floppy disk code existed in BIOS 1.21.
This was relpaced by an INT 40.
VIDEO FUNCTIONS:
1. A new scrolling algorithm, for text mode only, has been
implemented. If switch 4 of DIPSW#1, location 7T, is set
to ON, slow scroll is implemented to accomodate slower
third party video boards.
2. An error that caused video output to be truncated when using
the IBM or Hercules monochrome cards has been corrected.
3. Text and graphics parameter tables for composite video have
been corrected.
4. The switches 5 and 6 of DIPSW#1 are now required to be on
if no display controller is present, or if IBM's EGA is used.
Code was added to accomodate these situations. The EGA
solution also involved searching for optional ROM from the
address C0000 rather than from C8000 as was done before.
In addition, if the EGA is present, the Master Table
Pointer is not located at ROM BIOS data address 40:84. The
keyboard translation table pointer is now directly
extracted from ROM BIOS.
5. Light Pen support has been added. Note that the Indigenous
Video Board of the PC6300 does not support a light pen.
8087 COPROCESSOR:
1. Power up diagnostics for NDP 8087 have been added.
2. Changes were made to the system initialization routines
to correct a problem with 8087 exception handling. This
involves enabling NMIs and motherboard memory parity error
detection.
REMOTE BOOT FROM A NETWORK:
The boot code of the PC6300 has been corrected to recognize
that "Enter ROM BASIC" interrupt (INT 18) has been re-pointed
(note that the PC6300 does not have ROM BASIC and this
interrupt was not implemented correctly in earlier versions).
This change lets the PC6300 boot from a network, such as
STARLAN, if the floppy and hard disks are not ready.
COMMUNICATION CONTROL:
1. A problem with the recognition of the 8530 Communication
Controller during the power up sequence has been fixed.
2. A change was made to correct the timeout value for the
second communication port (INT 14).
TIME AND DATE:
ROM BIOS time function, INT 1A, that occasionally reported
erroneous time and date values has been improved by making
the code more sensitive to clock read errors and
automatically doing retries.
KEYBOARD/MOUSE:
1. The INT 9 was changed to turn off keyboard interrupts while
sounding the audible alarm that indicates keyboard overflow.
Before this change, the system would crash if excessive
movement of the mouse or random banging on the keyboard was
done, particularly during boot up.
2. INT 9 was changed to extract the keyboard translation table
pointer directly from the BIOS instead of the low memory
BIOS data address 40:84.
SOFT/HARD RESET FLAG:
The flag that distinguishes between the soft reset and the hard
reset was occasionally corrupted in the power up routine. BIOS
1.43 fixes this problem.
CONTROL-BREAK AND TIMER TICK:
The push/pop register order was made identical to the IBM PC for
INT 1B, Control-Break, and INT 1C, Timer Tick. This will correct
some problems with IBM 3270 SNA Terminal Emulators.
UNEXPECTED INTERRUPTS:
Unexpected interrupt handling has been improved. It is now more
selective as to which interrupts it masks off. In BIOS 1.21, all
pending interrupts were masked off. In the case of Default
Interrupt, a pending keyboard interrupt was erroneously thrown away.
TIMER PROGRAMMING:
Code to program the 8253 timer 1 has been changed from the word
mode to byte mode. This corrects some reported problems with 8253.
CHECK SUM:
The BIOS 1.21 only checksums the first 8K bytes. This has been
corrected in 1.43 BIOS.
┌────────────────────────────────────────────────────────────────────┐
│ │
│ │
│ AT&T PC6300 TECHNICAL BULLETIN │
│ │
│ SUBJECT: Understanding AT&T's Enhanced Memory Expansion Board │
│ PROVIDED BY: │
│ │
└────────────────────────────────────────────────────────────────────┘
Understanding the Enhanced Memory Card
======================================
Definitions: Non-paged Memory = Extended Memory
Paged Memory = Expanded Memory
Note: Expanded Memory (Paged) may be converted to Extended Memory by
using the AEX utility but Extended Memory can not be converted to
Expanded Memory.
Setting Switches on Extended Memory Card:
Start by setting SW2 positions 1-4. Each Extended memory card must
have a unique base address. (Unique meaning different from any other
Extended Memory Card or any other peripheral in the system.)
BASE I/O ADDRESS SW2-1 SW2-2 SW2-3 SW2-4
====================================================
0208 ON ON ON ON
0218 ON ON ON OFF Default Setting
0228 ON ON OFF ON
0238 ON ON OFF OFF
0248 ON OFF ON ON
0258 ON OFF ON OFF
0268 ON OFF OFF ON
0278 ON OFF OFF OFF
0288 OFF ON ON ON
0298 OFF ON ON OFF
02A8 OFF ON OFF ON
02B8 OFF ON OFF OFF
02C8 OFF OFF ON ON
02D8 OFF OFF ON OFF
02E8 OFF OFF OFF ON
02F8 OFF OFF OFF OFF
Setting SW2:
SW2 positions 5-8 are for specifying the amount of non-paged memory
on the Extended Memory Card that you are installing. These switch
settings are board independant and only affect the RAM on that board. If
all of the RAM on the Extended Memory card is to be set up as paged,
these four switch positions will be ignored. The amount of paged memory
on the Extended Memory Card equals the total amount of memory on card
minus the amount of non-paged memory.
Amount of Non-Paged
Memory on board SW2-5 SW2-6 SW2-7 SW2-8
====================================================
128K ON ON ON ON
256K ON ON ON OFF
384K ON ON OFF ON
512K ON ON OFF OFF DEFAULT SETTING
640K ON OFF ON ON
768K ON OFF ON OFF
896K ON OFF OFF ON
1024K ON OFF OFF OFF 1.0 MG
1152K OFF ON ON ON
1280K OFF ON ON OFF
1408K OFF ON OFF ON
1536K OFF ON OFF OFF 1.5 MG
1664K OFF OFF ON ON
1792K OFF OFF ON OFF
1920K OFF OFF OFF ON
2048K OFF OFF OFF OFF 2.0 MG
Setting SW1:
If none of the memory on a given Enhanced Memory Board is to be
set up as non-paged set all switches on SW1 OFF. Switch position SW1
must be set to show the amount of non-paged memory below the board
being installed. Note: If 1 Mb of ram reside on the motherboard of a
PC6300+, only 640K of this ram is considered non-paged. The remaining
384K is addressed at the very top of memory and therefore is not below
the board that is being installed. SW1-8 is the parity enable switch.
This should always be on unless none of the ram on board will be non-
paged.
Non-Paged Memory
Installed Below SW2-1 SW2-2 SW2-3 SW2-4 SW2-5 SW2-6 SW2-7 SW2-8
==========================================================================
All ram paged on bd. OFF OFF OFF OFF OFF OFF OFF ON
256K ON ON ON ON ON OFF ON ON
512K ON ON ON ON OFF ON ON ON
640K (default) ON ON ON ON OFF ON OFF ON
1024K (512+512K) ON ON ON OFF ON ON ON ON
1152K (640+512K) ON ON ON OFF ON ON OFF ON
1536K (512K+1.0MG) ON ON ON OFF OFF ON ON ON
1664K (640K+1.0MG) ON ON ON OFF OFF ON OFF ON
2048K (512K+1.5MG) ON ON OFF ON ON ON ON ON
2176K (640K+1.5MG) ON ON OFF ON ON ON OFF ON
2560K (512K+2.0MG) ON ON OFF ON OFF ON ON ON
2688K (640K+2.0MG) ON ON OFF ON OFF ON OFF ON
3072K (512K+2.5MG) ON ON OFF OFF ON ON ON ON
3200K (640K+2.5MG) ON ON OFF OFF ON ON OFF ON
3584K (512K+3.0MG) ON ON OFF OFF OFF ON ON ON
3712K (640K+3.0MG) ON ON OFF OFF OFF ON OFF ON
4096K (512K+3.5MG) ON OFF ON ON ON ON ON ON
4224K (640K+3.5MG) ON OFF ON ON ON ON OFF ON
4608K (512K+4.0MG) ON OFF ON ON OFF ON ON ON
4736K (640K+4.0MG) ON OFF ON ON OFF ON OFF ON
Using Enhanced Memory Card in 6300:
The Enhanced Memory Card comes set up for use with the 6300+. If
if is to be used with the 6300 you must rotate the jumper block
located next to the mounting bracket 180 degrees. The jumper block has
a dot on it in location of pin 1. This dot should be down (at pin 9)
for the 6300 and up (at pin 1) for the 6300+.
Using Enhanced Memory Card Ram as conventional memory.
To us the RAM on the Enhanced Memory Card as conventional memory
you need to set up the Enhanced Memory Card to have non-paged memory of
at least the amount of conventional memory to be added. Change the
switch settings on the motherboard to reflect the added memory.
Remember, all switches on the Extended Memory Card are relative to
that card so if you have 256K on the motherboard and are using 384K on
the Enhanced Memory Card to expand conventional memory, you would set
SW1 to show 256K ram below the Extended Memory Card.
Examples: 256K Motherboard. 1MB on Enhanced Memory Card. All non-paged.
1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8
SW1- ON ON ON ON ON OFF ON ON SW2-ON ON ON OFF ON OFF OFF OFF
256K Motherboard. 384K Non-paged, 640K paged.
1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8
SW1- ON ON ON ON ON OFF ON ON SW2-ON ON ON OFF ON ON OFF ON
Using the SuperPak software:
You must enter in your config.sys DEVICE = AEMM.SYS in order for
the PC to address the paged memory. This makes the paged memory
available for LOTUS or SYMPHONY types of programs that can use above
memory. The Superpak utilities can use either conventional memory or
Extended Memory. You can not use memory set up as non-paged memory (by
the switch settings) for these utilities. You must use the DEVICE = AEX
(nnn) command where (nnn) is at least the sum of the memory used by the
Superpak programs.
Examples:
SUPERSPL LPT1:/EXTM Will use the remainder of extended memory
for a print spooler for LPT1.
SUPERSPL LPT1:/M=24 Will assign 24K of extended memory
for a print spooler for LPT1.
SUPERDRV C:/EXTM Will assign a 360K Ram Drive in
extended
memory assigned to logical drive C:.
SUPERDRV D: Will assign a 360K Ram Drive of
conventional memory assigned to
logical drive D:.
DEVICE = RAMDISK.DEV 512 512 64 /E
(In config.sys after DEVICE = AEX nnn command.)
Will assign a 512K ramdisk with 512
byte sector size and 64 Directory
entries. All of these parameters
must be in multiples of 16 or they
will round to the next multiple of
16 value. The /E option puts the
ramdisk in extended memory. To
create multiple ramdisks, you would
use multiple DEVICE=RAMDISK state-
ments in your config.sys.
For further examples, see the READ.ME file on the SUPERPAK
utilities diskette or the SUPERPAK manual that comes with the Enhanced
Memory Board.
Note: The /E option in the examples is the same as the /EXTM
switch. Once the /E option is enabled, it will be assumed for all
following commands unless the /DEXTM switch is used.
┌───────────────────────────────────────────────────────────────┐
│ │
│ AT&T PC6300 TECHNICAL BULLETIN │
│ │
│ SUBJECT: Microsoft Word v3.0 │
│ PROVIDED BY: │
│ │
└───────────────────────────────────────────────────────────────┘
The following instructions allow the AT&T PC6300 to work with
Microsoft Word 3.0 in High Resolution 640x400 graphics mode.
It is not possible to receive color in the High Resolution mode.
1. Make a copy of the program disk. Do not make changes to
your original program disk.
2. Put the copy of the program disk in drive A, and be sure
DEBUG.COM is on your default drive/path.
3. Type: DEBUG A:WORD.COM <ENTER>
4. A dash will appear on the next line.
5. Type: A 3B1A <ENTER>
6. xxxx:3B1A will appear.
7. Type: JMP 3B3C <ENTER>
8. xxxx:3B1C will appear.
9. Hit <ENTER>, a dash will appear on the next line.
10. Type: W <ENTER>
11. Writing xxxx bytes will appear.
12. Type: Q <ENTER>, your DOS prompt will appear.
┌───────────────────────────────────────────────────────────────────┐
│ │
│ AT&T PC6300 TECHNICAL BULLETIN │
│ │
│ SUBJECT: Using the Central Point CopyIIpc Board in a PC6300 │
│ PROVIDED BY: │
│ │
└───────────────────────────────────────────────────────────────────┘
The problem with the CopyIIpc Board has nothing to do with DMA or
the DMA fix. Central Point Software was given incorrect
information from Olivetti, and set the board to access the DMA
port dedicated to the Floppy drive.
If a CopyIIpc Board owner has a new board, made after March 1986,
there will be two jumpers in the lower right portion of the board
marked DMA. The fix is to move these jumpers to the LOWER
position, then invoke with TC /C1 from the keyboard or batch file.
If a user has an older board without these jumper positions,
Central Point will replace it, at no charge, by calling the number
for Central Point in the CopyIIpc Board manual.
┌────────────────────────────────────────────────────────────────────┐
│ │
│ │
│ AT&T PC6300 TECHNICAL BULLETIN │
│ │
│ SUBJECT: Parallel and Serial Port Pinouts │
│ PROVIDED BY: │
│ │
└────────────────────────────────────────────────────────────────────┘
PARALLEL PORT:
Pin 1. STROBE
2. PTD0 ─────┐
3. PTD1 │
4. PTD2 │
5. PTD3 ├──── Data Lines
6. PTD4 │
7. PTD5 │
8. PTD6 │
9. PTD7 ─────┘
10. -ACK Acknowledge
11. BUSY
12. PE Paper End
13. SLCT Select
14. -AUTOFDX Auto Feed
15. -ERROR
16. -INIT Initialize Printer
17. -SLCTIN Select Input
18. GND ─────┐
19. GND │
20. GND │
21. GND ├─── Ground
22. GND │
23. GND │
24. GND │
25. GND ─────┘
SERIAL PORT:
Pin 1. PRGND Protective Ground
2. TD Transmitted Data
3. RD Received Data
4. RTS Ready to Send
5. CTS Clear to Send
6. DSR Data Set Ready
7. GND Signal Ground/Common Return
8. DCD Data Carrier Detect
9. ──
10. ──
11. ──
12. ──
13. ──
14. ──
15. ──
16. ──
17. ──
18. ──
19. ──
20. DTR Data Terminal Ready
21. ──
22. RI Ring Indicator
23. DTR Data Terminal Ready
24. ──
25. ──
┌────────────────────────────────────────────────────────────────────┐
│ │
│ │
│ AT&T PC6300 TECHNICAL BULLETIN │
│ │
│ SUBJECT: PC6300 Clock/Calendar │
│ PROVIDED BY: │
│ │
└────────────────────────────────────────────────────────────────────┘
There seems to be a number of people calling in to
report slow clocks. There is a jumper plug
located at C-9 on the motherboard. Make sure this
is in place. If it is not there, charging the
battery won't help. Provided it is there, the
clock battery requires a charge of approximately
72 hours before it will hold time. We usually
suggest turning the intensity down during this
time period, if the machine is not being used.
┌────────────────────────────────────────────────────────────────────┐
│ │
│ │
│ AT&T PC6300 TECHNICAL BULLETIN │
│ │
│ SUBJECT: AT&T PC6300 Mini Floppy Drive Units │
│ PROVIDED BY: │
│ │
└────────────────────────────────────────────────────────────────────┘
USING TWO FLOPPIES OF DIFFERENT MAKES
We currently have three different types of disk drives
Toshiba - door that flips down and can be ordered,
Toshiba - latch that turns clockwise (centered) (is a
production model) and can't be ordered. If
found defective replace with an Olivetti
drive for cosmetic reasons.
Olivetti - latch that turns clockwise (offset to left).
These drives have their data connector in different
places making it impossible to use the one MFD cable to
connect them unless the machine is equipped with the
100mm (new) cable as opposed to the standard 50mm (old)
cable. This change was in affect approximately 1/1/85.
You should determine which cable you have before
ordering a different drive replacement. Of course a
like replacement won't matter.
MAX NUMBER OF DRIVES
Our machine can support a maximum of TWO MFDUs. Dip
Switches for three and four drives are only useful for
Ram Disks.
DIP SWITCHES - DPSW-1 Location 7W on motherboard
# of drives | SW-7 | SW-8
------------------------------
1 | 1 | 1
2 | 0 | 1
3 | 1 | 0
4 | 0 | 0
NOTE 3 AND 4 ARE ONLY FOR RAM DISKS
96-TPI FLOPPY DRIVES
MS-DOS does not have the power to use this feature even
though there is a dip switch for it. That switch is
meant for future use and we do not support the 96-tpi
feature.
┌────────────────────────────────────────────────────────────────────┐
│ │
│ │
│ AT&T PC6300 TECHNICAL BULLETIN │
│ │
│ SUBJECT: Lock for the AT&T PC6300 and PC6300+ │
│ PROVIDED BY: │
│ │
└────────────────────────────────────────────────────────────────────┘
There is now a lock for the PC6300 and the PC6300+.
This lock allows key control of the ON/OFF switch,
preventing unauthorized use of the computer. The lock will
also keep the top and bottom cover from being removed
without the key, protecting the cards in the top of
the unit and the chips in the bottom of the unit. The
lock has a Underwriter's Laboratories listed Medeco key
system, it's pickproof.
The COMCODE for the AT&T Personal Computer External
Security Lock is ---- 405078585.
┌────────────────────────────────────────────────────────────────────┐
│ │
│ │
│ AT&T PC6300 TECHNICAL BULLETIN │
│ │
│ SUBJECT: Null Modem Cable Pin Configuration │
│ PROVIDED BY: │
│ │
└────────────────────────────────────────────────────────────────────┘
TYPICAL NULL MODEM CABLE
1 ----- 1
2 ----- 3
3 ----- 2
4 ----- 5
5 ----- 4
7 ----- 7
6 ----- 20
20 ----- 6
NOTE THIS IS NOT A TYPICAL SET UP FOR THE 6300.
WE USUALLY HAVE 6 & 8 TOGETHER GOING TO 20.
┌────────────────────────────────────────────────────────────────────┐
│ │
│ │
│ AT&T PC6300 TECHNICAL BULLETIN │
│ │
│ SUBJECT: Remedies for Common Keyboard Problems │
│ PROVIDED BY: │
│ │
└────────────────────────────────────────────────────────────────────┘
KEYBOARD CONTAMINATION
Many calls are received regarding a keyboard key or keys
not working properly. This is usually due to some foreign
material lodged between the contact on the circuit card
and the carbon contact on the bottom of the key plunger.
Generally, these problems can be resolved by the customer.
1. Remove the key cap by gently prying under the
edge of it.
2. Release the two catches that hold the key in place.
3. At this point the key mechanism will come out in
one piece.
4. Clean both the bottom contact of the key and the
contact on the circuit card. Use some type of swab
and a cleaner if possible. Be careful not to
introduce new contamination.
5. Reinsert the key and replace the keycap.
6. If not successful, replace the keyboard.
LOOSE SCREWS
There are approximately a dozen screws that hold the bottom
plate of the keyboard on (metal plate). If one or more come
loose it will cause keys to not make proper contact with the
circuit card, getting no response. This is usually indicated
when several keys in the same area don't work. Open the
keyboard and tighten all of the screws.
┌────────────────────────────────────────────────────────────────────┐
│ │
│ AT&T PC6300 TECHNICAL BULLETIN │
│ │
│ SUBJECT: UNIX System V Documentation │
│ PROVIDED BY: │
│ │
└────────────────────────────────────────────────────────────────────┘
There have been a number of questions from customers who have
received their UNIX software for their PC6300+. One question has
to do with a book known as the USER'S REFERENCE MANUAL/SYSTEM
MAINTENENCE MANUAL. This book is NOT included with the standard
issue of UNIX, but must be purchased through the Documentation
Hotline, eventhough it contains all the vanilla UNIX commands.
Another UNIX System V book for the PC6300+ is the INTEGRATED
SOFTWARE DEVELOPMENT GUIDE. This has guidelines for writing
device drivers, etc.
BOOK TITLE COMCODE
USERS REFERENCE MANUAL/
SYSTEM MAINTENENCE MANUAL 105152771
INTEGRATED SOFTWARE
DEVELOPMANT GUIDE 105152789
The phone number for the Documentation Hotline is 800-432-6600.
┌───────────────────────────────────────────────────────────────┐
│ │
│ AT&T PC6300 TECHNICAL BULLETIN │
│ │
│ SUBJECT: UNIX and the Western Digital Hard Disk Controller │
│ PROVIDED BY: │
│ │
└───────────────────────────────────────────────────────────────┘
UNIX will not load on the PC6300Plus if the PC has a Hard Disk
Controller with an on-board PROM. UNIX will only look at the
motherboard ROM for its hard disk parameters. It appears that
MOST dealers are selling the PC6300Plus with a Western Digital
Controller Card with an on-board PROM chip. In order for UNIX
to load, the on-board PROM must be removed, and the Plus must
be re-optioned to read the parameters on our motherboard.
┌───────────────────────────────────────────────────────────────────────┐
│ │
│ AT&T PC6300 TECHNICAL BULLETIN │
│ │
│ SUBJECT: Removing MS-DOS software from UNIX office system │
│ PROVIDED BY: │
│ │
└───────────────────────────────────────────────────────────────────────┘
UNIX NOTES ON THE 6300+
-----------------------
If a person wishes to remove an MS-DOS based software package that
they installed through the install software procedure, they can follow
the method below to do just that:
<1> Go to Administration Section of Main Office window
<2> Then select Software Set-Up
<3> Then select Program Administration
<4> It will then show you a list of files, highlight your choice
<5> The last feature it will show you will be to list the filename in
the Programs Main Menu (Y/N)? -- Choose N (press F6 - To Save)
<6> At this point it will no longer appear in the programs menu
<7> You then must also make the following changes:
<8> Go to a Unix prompt and cd /usr/lib/ua and edit the file showsoft.mn
make sure that you take the line out that contains that entry.
<9> Now cd /usr/lib/office and edit the file programs. Make sure that
the proper line is taken out of the file.
<10> Now all you have to do is to cd to the proper directory where the
files are stored and erase them and the directory.
<11> ***NOTE: You must change the attributes of the sub-directory for
which you are going to remove. Ex. If you are going to remove the
word directory you must change the attributes on it to Write by
doing the following: chmod guo+w word <cr> and then you will be able
to go into simultask and erase it.
Thats It!! You no longer will see that Program listed anywhere in
your menu's or directories.
┌────────────────────────────────────────────────────────────────────┐
│ │
│ │
│ AT&T PC6300 TECHNICAL BULLETIN │
│ │
│ SUBJECT: Using the DOS PROMPT Command │
│ PROVIDED BY: │
│ │
└────────────────────────────────────────────────────────────────────┘
ANSI.SYS
To make full use of the PROMPT command, you must have
ansi.sys in your config.sys file (device=ansi.sys) and
both must be in the root (boot) directory (or specify
full path name).
PROMPT
The example of the PROMPT command on page 5-69 is
incorrect. Both brackets should be right facing ([).
Also, this command will not give the required results,
after one full screen, the entire display will be
inverse video, not just the cursor.
KEY PROGRAMMING
An example of programming keys with the PROMPT command
is... "PROMPT $E[0;59;"dir";13p". The "$E" defines
that what is to follow is to be accepted literally, the
"[" starts the beginning of the code, the "0" is a
necessary null variable (this position is usually
defined for cursor positioning in other operations),
the "59" is the keyboard scan code for the F1 key
(59-68=F1-F10), "dir" in quotes is the string that you
insert for execution, and "13p" is the decimal value
for a carriage return to execute the string. Note that
this example will erase any prompt that you are
currently using. If keys are reprogrammed using PROMPT,
the reprogrammed values may be passed on to programs,
instead of the default keyboard scan codes.
USE OF $p IN PROMPT
Used to display pathname of current directory as part
of your prompt. If the A drive is selected as your
default drive and the diskette is removed, any attempt
to execute DOS commands (resident or otherwise)
results in an "abort, retry, ignore" error message. The
system then requires a disk in the A drive to continue.
The reason is the $p causes a search for the default
drive pathname each time it writes information to the
prompt. Omitting the $p from the prompt eliminates this
problem.
┌───────────────────────────────────────────────────────────────────┐
│ │
│ AT&T PC6300 TECHNICAL BULLETIN │
│ │
│ SUBJECT: Borland Tech Bulletin #313 - Sidekick 1.56A Patch │
│ PROVIDED BY: Borland International │
│ │
└───────────────────────────────────────────────────────────────────┘
The following information is part of Borland's Tech Info Bulletin
number 313. For complete documentation, contact Borland
International at 408-438-8400. This patch applies ONLY to version
1.56A of Sidekick, both the copy-protected and non-copy-protected
versions. If you do not receive the appropriate response from
these commands, enter Q and check your version number.
NON-COPY PROTECTED VERSION PATCH
TYPE THIS APPEARS
──────────────────── ──────────────────
debug SK.COM <ENTER> -
a 1380 <ENTER> xxxx:1380
jmp 1394 <ENTER> xxxx:1382
<ENTER> -
w <ENTER> writing xxxx bytes
q <ENTER> DOS prompt
debug SKN.COM <ENTER> -
a 135E <ENTER> xxxx:135E
jmp 1372 <ENTER> xxxx:1360
<ENTER> -
w <ENTER> writing xxxx bytes
q <ENTER> DOS prompt
debug SKC.COM <ENTER> -
a 126A <ENTER> xxxx:126A
jmp 127E xxxx:126C
<ENTER> -
w <ENTER> writing xxxx bytes
q <ENTER> DOS prompt
debug SKM.COM <ENTER> -
a 121D <ENTER> xxxx:121D
jmp 1231 <ENTER> xxxx:121F
<ENTER> -
w <ENTER> writing xxxx bytes
q <ENTER> DOS prompt
COPY PROTECTED VERSION PATCH
TYPE THIS APPEARS
──────────────────── ──────────────────
debug SK.COM <ENTER> -
a 1396 <ENTER> xxxx:1396
jmp 13AA <ENTER> xxxx:1398
<ENTER> -
w <ENTER> writing xxxx bytes
q <ENTER> DOS prompt
debug SKN.COM <ENTER> -
a 1374 <ENTER> xxxx:1374
jmp 1388 <ENTER> xxxx:1376
<ENTER> -
w <ENTER> writing xxxx bytes
q <ENTER> DOS prompt
debug SKC.COM <ENTER> -
a 1280 <ENTER> xxxx:1280
jmp 1294 <ENTER> xxxx:1282
<ENTER> -
w <ENTER> writing xxxx bytes
q <ENTER> DOS prompt
debug SKC.COM <ENTER> -
a 1233 <ENTER> xxxx:1233
jmp 1247 <ENTER> xxxx:1235
<ENTER> -
w <ENTER> writing xxxx bytes
q <ENTER> DOS prompt
┌────────────────────────────────────────────────────────────────┐
│ │
│ AT&T PC6300 TECHNICAL BULLETIN │
│ │
│ SUBJECT: Sidekick Setup for AT&T 4000 Modem │
│ PROVIDED BY: │
│ │
└────────────────────────────────────────────────────────────────┘
There are two types of AT&T 4000 Modems, each requiring a
different setup with Sidekick. The first, 1AO1, uses the AT&T
command set to dial, and should be setup accordingly in Sidekick.
The 1AO2 requires the Hayes setup option. This holds true for
any other AT&T modem that uses the Hayes command set, such as the
4112 and 4024 modems.