(1)
Disconnect the power unit and manually dial
a known telephone number to check
that
the telephone operates correctly in the absence
of commercial power.
(2)
Reconnect the power unit to
ac
outlet.
(3)
With handset on-hook, record digits 1through
0 into consecutive memory locations, storing
one digit per memory. Fill all memory locations
except LAST NUMBER DIALED and location
immediately above
it
[5.01
(4)
through
(7)].
(4)
Manually dial
CO
dial
test
and ringer circuit
and
simultaneously record into memory
location immediately above LAST NUMBER
DIALED button
[5.01
(4)
through
(7)].
After
depressing RECORD OFF button, and when dial
test circuit is ready,
test
dial frequencies by
manually dialing digits 1 through 0 into the
test
circuit.
(5)
Momentarily hang
up
handset and automatically
dial the test circuit number recorded in Step
(4) by depressing button immediately above
LAST NUMBER DIALED button and proceed
as follows.
(a) Depress LAST NUMBER DIALED button.
Digits 1 through 0 will
be
automatically
dialed into
test
circuit. Verify
that
correct
signal is returned from
test
circuit.
(b) Momentarily depress the memory buttons
used
in
Step
(3)
in the same sequence in
which the digits were recorded. Verify
that
correct signal is returned from
test
circuit
after each series of numbers.
Tb.e
battery
and
tb.e
power
unit
must
be
connected
a
minimum
of
five
minutes
before
doing
Step
(c).
(c)
Momentarily disconnect the power unit
(for 5 to
10
seconds). After reconnecting
power unit, depress a memory button of a
memory location used in Step
(3),
to verify
retention of memory.
(6)
Dial the appropriate
cod
e for ring-back to
test the ringer.
ISS
4,
SECTION
503-603-101
(7)
Check operation of the logic reset switch
by
pressing the RECORD button (RECORD
lamp will come on) and subsequently pressing
an unoperated line button. The RECORD lamp
must
go
out.
(8)
If
equipped with one-touch calling option
(D-180493
Kit of
Parts
and speakerphone),
and with set in on-hook condition, depress the
memory button used in Step
(4)
. The speakerphone
should
turn
on, dial tone should
be
detected,
and the stored number should
be
automatically
dialed.
OPTIONAL
APPARATUS
INSTALLATION
D-180492 Kit
of
Parts (With Speakerphone)
3.08
To
install.
(1)
Proceed as described in
3.16.
(2)
Make connections per the appropriate Tables,
B through
E.
(3
) Mount the kit assembly to the chassis with
the screws provided (Fig.
4).
Beveled corner
of printed wiring board (PWB) should
be
located
at
lower right corner.
D-180493
Kit
of
Parts (Dial Tone Detector
and
One-Touch Calling Switch)
3.09
To
install.
(1)
Remove the housing
(3
.
21),
and access PSB
terminal board
(3
.
17).
(2)
Insert the board assembly from the back of
the set and locate as shown in Fig.
4,
such
that
the two tabs on the board assembly fit into
the slots in the bottom of the chassis.
(3)
Lock
the board into position
by
inserting
the self-threading screw through the right
side of the chassis.
(4)
Mount the one-touch calling switch below
the dial with the
two
screws provided.
Note:
If
switch for
D-180818
Kit of
Parts
is already present, the one-touch calling switch
can not
be
installed. The PSB terminal where
the switch leads should
be
connected (Table
Page 9
