Teletype 43K001/AAA, Repair Manual

Page: 36 / 82

525,3-4
C. DISASSEMBLY (Contd)
1. 43K101 KEYBOARD and (Contd)
(b) To remove the data keytops, place 420204
tool over keytop and pull up to remove
(Fig. 10).
Fig.10-Data Keytop Removal
Warning: CAPS LOCK, PARITY, DUPLEX, and
CPS keytops must be in the fully extended,
unlatched position before attempting to remove
the keytop. Failure to observe this precaution will
result in a damaged keyswitch.
(c) To remove control keytops (Fig. 11):
(1) Grasp keytop using
thumb
and index
finger.
(2) Exert upward
·
force until keytop
releases.
Fig. 11-control Keytop Removal
(d) To remove early design RETURN keytop
with housing:
(1) Remove keytops BACK SPACE, OVER­
LINE, GS, US, LINE FEED, SHIFT,
and QUOTES that surround the RETURN
keytop using 420204 tool.
(2) Disengage the rear tines from housing
with a small screwdriver while pulling
the RETURN keytop up and toward the
front (Fig 12).
HOUSING
REAR TINES
(Rear View)
Fig. 12-Rear Tine Disengagement
(3) Continue applying upward pressure to
the RETURN keytop and disengage the
front tine from housing using
a
spring hook.
Remove keytop with housing from channel
(Fig. 13).
FRONT
TINE
(Front View)
Fig. 13-Front Tine Disengagement