Radio Shack Quick Printer II Reference Handbook

Motorola 7800 Series ROMs
(Two
Chip Set)
Motorola was the next vendor to supply ROMs
for the TRS-80. These ROMs may be identified
by the part number
7807 for ROM A and
7804 for ROM B. These devices are used only on
"0" version Boards and there are no PCB modi-
fications. As
with National ROMs, Motorola
ROMs may
be placed in either 233's or 234's
socket.
Motorola 7800 Series ROMs
(Single
Chip Set)
The last ROM supplied to the factory was a
single Motorola ROM.
It may be packaged in
either ceramic
(like a few of the National's)
or in plastic. The device's number is "7809"
and also says "BAS IC I". Th is ch ip may be
inserted in either 233 or 234, but it's usually
put in 233. Once again, there are no PCB modi-
fications. Notice the part number on the single
chip ROM and the
7809 ROM B mentioned
above.
Be very careful when replacing ROMs.
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Radio Shack Quick Printer II Specifications

General

Brand	Radio Shack
Model	Quick Printer II
Category	Desktop
Language	English