💾 Archived View for spam.works › mirrors › textfiles › computers › ASTRESEARCH › 0295.tb captured on 2023-06-16 at 21:38:35.
-=-=-=-=-=-=-
AST RESEARCH TECHNICAL BULLETIN TB-0295 9-3-87
AST TURBOLASER LASER PRINTER CONTROLLER IDENTIFICATION
PURPOSE
1. To identify the various configurations of the Laser
Printer Controller (LPC) printed circuit boards used
with the different models of AST's TURBOLASER Printers.
2. To assist users in identifying the correct software to
be used with corresponding LPC's.
GENERAL:
AST RESEARCH markets several models of the Turbolaser
Printer identified as follows:
TURBOLASER (Also referred to as /XL)
TURBOLASER/EL (Entry Level)
TURBOLASER/PS (PostScript)
All of these printers can be upgraded with various
options to increase memory size, add the PostScript
option, and additional soft fonts.
Each model uses unique software and fonts to control
printer operation. Users should not use software or
fonts unless designed for that particular printer.
-Do not use /EL software on /XL printers.
-Do not use /XL software on /EL printers.
Please refer to Page 2 for assistance in identifying the
various configurations of the LPC. Although each part can be
identified by a unique part number, once assembled (adding a
Memory Pak or changing the PAL chip), the true identity must
be determined by visual observation.
LPC's configured for /EL Printers, will have a PAL chip at
location U51, AST part number 107101-293. Upgrades are
available from AST Research to enhance the capabilities of
the /EL printer.
TURBOLASER LPC IDENTIFICATION
?????????????????
? ? PAL ? 10 MHZ LPC 202093-001
? U51 ? (Original) PAL 107101-071A
???????????? ?
??????
?????????????????
? ? PAL ? 12 MHZ LPC 202093-002
? U51 ? (Original) PAL 107101-071A
???????????? ?
??????
?????????????????
? ? PAL ? 10 MHZ LPC 202093-001
? U51 ? (W/EL PAL) 107101-293A
???????????? ?
??????
?????????????????
? ? PAL ? 12 MHZ LPC 202093-003
? U51 ? (W/EL PAL 107101-293A
???????????? ?
??????
????????
???? ? Vertical 512KB PAK 202097-003
???? ? RAM Chips
????????
????????
???????? Horizontal 1MB PAK 202097-001
???????? RAM Chips
????????
????????
???????? Vertical 1.5MB PAK 202097-002
???????? RAM Chips
????????
?????????????????
???????? ? PAL ? LPC 202093-001 202122-001
???????? U51 ? 1MB 202097-001
???????????? ? (No assembly identification)
??????
?????????????????
???????? ? PAL ? LPC 202093-002 202166-001
???????? U51 ? 1.5MB 202097-002
???????????? ? (No assembly identification)
??????
?????????????????
???????? ? PAL ? LPC 202093-001 NO P.N.
???????? U51 ? 1.5MB 202097-002 AVAILABLE
???????????? ? (Has been field upgraded)
?????? (No assembly identification)