Tektronix PHASER 380, Service Manual

Page: 31 / 346

Service Manual 1-13
General Information
1
The main board
The main board features two processors: one processor controls the functions of
the print engine and the other provides PostScript image processing.
Prominent on the main board is the ROM code SIMM and, underneath it, the
optional font SIMM.
The standard RAM SIMM, always a 16 Mbyte RAM SIMM, is located next to the
main processor of the main board. Next to it are the two optional RAM SIMMs
which may be 8-, 16- or 32-Mbyte RAM SIMMs.
Network connection is provided through the plug-in network card.
The printer stores unique printer status and PostScript values in its NVRAM
module. The printer’s IP address, unique to each printer, is stored in a socketed
ROM IC.
Figure 1-11 Features of the main board
NV RAM
Main
Processor
Standard
RAM SIMM
Optional
RAM SIMMs
Printer ID
ROM
PostScript Code ROM
Optional
font
SIMM
9661-59
Print Engine
ROM