~~T~S:=A11VANCE
PRINTING
SERVICE
2563HB
TELEPHONE
SET
SECTION
502-543-400
Issue 2, December 1972
1.
GENERAL
1.01
This
section
provides
maintenance
and
connection
information
for
the
2563HB
telephone
set
equipped with
headset
jacks
and
12-button TOUCH·TONE® dial for use with optional
12-button headset.
1.02
This section
is
reissued
to:
•Include
KS·20419L1
buzzer, Fig. 1
•Show
T1A
ringer as replacement for
NIA
ringer, Fig.
-1
•Show
35Y3A
dial as replacement for 35A3A
dial.
2. MAINTENANCE
Replaceable Components
2.01
Field
replaceable
items
are
listed
under
identification
in
the appropriate
Refe~ence
section
in
Division
502.
2.02
Maintenance
of
handsets
and
ringers
is
outlined
in
sections covering these components.
UxJse Card
Retainers
2.03
The
P-25E803
and
P·269561
are nonadjustable
card
retainers.
The P-25E785
(MD)
card
retainer
is
replaced by P-25E803.
~.04
If
P-25E785
(MD)
card retainer becomes so
loose
on
the faceplate
that
the number card
or designation strip slips, they can be tightened
as follows:
(1)
Remove faceplate from set.
(2)
Remove card retainer from faceplate.
(3)
Bend the four arms of the retainer
so
that
mQre
pressure
will
be apPlied to the number
card and designation strip. The bends should
be made approximately 1I2·inch
in
from the tabs
on
the
ends
of
the
arms
and in
the
opposite
direction from the factory bent tabs.
(4)
Install the card
retainer
on the faceplate
and insert the number card and designation
strip.
(5)
Install faceplate
on
telephone set.
Note:
If
adjusting the arms of the retainer
does not
result
in sufficient holding power,
replace the card retainer.
Removing
and
Replacing
Housing
2.05
Sets without exclusion:
(a)
To
remove housing, loosen captive screws
in
base of set. Lift housing up and toward
front of set.
(b)
To
replace housing, guide lower
front
of
housing over pushbuttons, align housing with
base of set, and gently press housing into place.
Tighten captive screws
in
base of set.
2.06
Sets with exclusion:
(a)
To
remove housing, pull up exclusion plunger
to its operated position, loosen captive screws
in
base of set, and lift housing up and toward
the front of set.
(b)
To
replace housing, guide lower front portion
of housing over pushbuttons, align housing
with base
of
set, and gently press housing
in
place.
(c)
Depress
exclusion
plunger.
With
slight
pressure it should snap into its unoperated
position.
(d)
Operate exclusion plunger several times to
insure proper operation. Tighten captive
screws
in
base of set.
@)
America~
Telephone and Tfllegraph Company,
1972
Printed
in
U.S,A.
Page
1
