Carriage Frame Disassembly 4_3; Space Motor Replacement 4_3 - Atari 1025 Field Service Manual

•
Disconnect
the print
head assembly
(Figure
4-1,
#5) carefully
from
its
fiat
cable
connector on
the
carriage frame.
•
While
holding
down
the
print
head
lock lever
to the- left of
the head,
lift
the
head
straight
up and
out.
CARRIAGE
FRAME
DISASSEMBLY
•
Follow
the
UPPER COVER
DISASSEMBLY,
page
4-1.
•
Remove
the print
head
(refer to
page
4-2).
Push
the carriage
assembly
to
the
left side.
•
Remove
the space
belt
clamp screw
(
Figure
4-3,
#14) and the
belt
clamp
(Figure
4-3, #15)
from
the carriage assembly.
•
Remove
the
four right
and
left
snap lever screws
(Figure 4-1, #16) that
fasten the upper carriage
shaft.
•
Remove
both snap
levers (Figure 4-1,
#17 and
17A) and
pull
the carriage
shaft out
of the side plates.
•
Remove
the
flat
cable connector screw
(Figure
4-3, #6)
and
the connector
from
the
printer
unit.
•
Remove
the
four side plate screws
(Figure
4-4,
#40)
and
lift
the carriage
frame
up off the
metal
plate.
SPACE
MOTOR
REPLACEMENT
Disassembly
•
Follow
the
UPPER COVER
DISASSEMBLY,
page
4-1.
•
Follow
the
PCB DISASSEMBLY,
page
4-1,
and disconnect
the space
motor
connector (CN4).
•
Cut
the
tie
wraps
securing the space motor
leads.
•
Remove
the space
belt
from
the space motor
pulley (Figure
4-4,
#18).
•
Remove
the
two
space
motor mounting
screws (Figure
4-4,
#19)
and
lift
the
motor
out.
Assembly
•
Replace
the
new
space
motor and
set
the space
belt back on the
pulley.
Follow the Space
Belt
Adjustment
procedure on page 4-4. Then
follow the
First
Character
Printing Position
Adjustment
procedure on page
4-8.
•
Reconnect
CN4
on the
PCB
and
tie
down
the leads.
• Follow the
PCB
and
UPPER COVER ASSEMBLY
procedures, page 4-10.
Atari 1025 Printer 4-3
Field Service
Manual