Pc-Based Diagnostics; Requirements - Tektronix Phaser 340 Service Manual

PC-based diagnostics

Requirements

The PC-based diagnostics allows you to interactively test and check the
operations and functionality of the printer. The diagnostics are provided on a
3-1/2 inch floppy diskette. All of the diagnostic tests are started from the PC.
Some of the tests are stored on-board the main board in ROM and are merely
started by the PC-based diagnostics; other tests are downloaded to the printer
from the PC. The test are functionally divided into two classes: 29K tests, which
execute test stored in the 29K processor's ROM and the 68K tests which are
downloaded to the printer to test the 68K processor and the print engine.
The PC diagnostics were developed to run on a PC. The following procedure
discusses using the diagnostics with an Apple® PowerBook® running PC
emulation software as this is the portable computer in use by the field service
organization.
Note Printers serial-numbered B0xxxxx to BBxxxxx use diagnostics
version 1.xx. Printers serial-numbered BCxxxxx and up use
diagnostics version 2.xx. Both diagnostics are available on the same
diskette.
Printer serial cable adapter (level shifter), part number 174-3493-00.
For PCs use serial null modem cable, part number 012-1313-00. For
Apple computers, use serial adapter cable part number 012-1498-00
IBM PC or PC-clone or compatible i86 operating environment,
preferably a 386 or 486; 286-based PCs are intolerably slow. A
PowerBook or other Macintosh running SoftPC is acceptable.
At least 640K of RAM. About 2 Mbytes of disk space to store the
diagnostic program and its test suite.
A mouse is optional, but is not supported by the user interface.
MS-DOS environment, version 3.1 or newer. This may be SoftPC® on
a Mac, or Windows® DOS or MS-DOS on a PC.
By convention, each set of diagnostic files is installed into a single directory (for
ease of removal and updating); C:\340DIAGS\<version number>\ is the default.
The following procedure discusses using the diagnostics with an Apple®
PowerBook® running SoftPC as this is the portable computer in use by the field
service organization. Soft PC should be set to the Preferred size of 10 Mbytes,
assuming your PowerBook has enough RAM.
Troubleshooting
Service Manual 6-27
6