Cleaning 3_2 - Atari 1025 Field Service Manual

»
Do
not
wear
gloves,
which
easily generate
static,
when
handling the printer
circuit board. Since the
CPU, ROM,
and other
ICs are
liable to
damage
by
static,
exercise care not
to unnecessarily touch the leads
and windows
or
the
ROM.
•
Do
not place the printed
circuit
board
directly on
the
printer or the
floor.
Place
it
on
a grounding
pad.
CLEANING
Cleaning
interval:
6
months
or
300 hours
of operation, whichever comes
sooner
Tool: Dry
cloth (gauze
or other dry
cloth)
CLEANING
POINTS
Inked ribbon passage:
Clean
the inked ribbon passage
of
dust,
and
ribbon
lint.
Paper
passage: Clean
the paper passage and
the
parts
around
it
of
paper
lint.
DIAGNOSTIC
PROGRAM
FOR
TESTING THE
1025
To
test
the 1025
you must
type
in
a short
BASIC
language program and
run
it
by
entering certain
command
codes.
There
is
also
an
internal self-test
used during
troubleshooting
to
determine
certain
failures. This second
test
is
referenced
in
the
diagnostic flowcharts
and
explained
later
in
this
section.
Connecting
the 1025
for testing:
1.
Connect
the
computer
to
the
TV
set as
shown
in
the computer
owner's manual.
2.
Plug the 1025
into the wall
outlet.
3.
Plug an I/O cable
into
the
computer
and the
1025.
4.
Turn on both
the
POWER
switch and the
PRINT
switch on the
1025.
5.
Plug
a
BASIC
cartridge
into the
computer
and
turn the
computer ON.
(If
the computer
fails
to
come
on, refer to
the appropriate
ATARI
computer
repair manual.)
Atari 1025 Printer
Field Service Manual
3-2