SECTION
503-603-101
$ TABLE N
(Contd) (I
TROUBLE
ANALYSIS
- 2872AIM
OR 2872A2M
TROUBLE
FAILURE
ADDITIONAL SYMPTOM
POSSIBLE CAUSE
REMEDIAL ACTION
NUMBER
,
,,
9 (cont'd)
No digits or random
AC power outage
for
Reestablish
ac power
and
digits in memory
24 hours or longer
rerecord
numbers
into memory
Disconnected
or de-
1. Plug in the battery
fective
battery
2. Allow the battery
to be
charged
for a minimum
of
5 minutes.
Then momentarily
remove
the 95B1 power unit
from
the ac power
outlet
and
reinsert
3. If previously
stored
numbers
are not dialed
from
memory,
replace
the battery
4. Repeat
procedure
Defective
power
Replace
telephone
set*
supply
circuit
No digits or all the same
Defective
memory
Replace
memory
digits in random
mem-
ory locations
Two or more
memory
Static
discharge
1. Consult
your Telco engineer
locations
have some
damage
for proper
grounding
digits which are usually
procedures
different
from originally
2. Replace
memory
recorded
digits
Automatically
dials
Defective
WAIT con-
Replace
memory
through
a "wait"
after
tacts or defective
cir-
pausing
momentarily
cult components
at the "wait"
space
Defective
dial tone
Replace
dial tone detector
PWB
on a train of recorded
detector
assembly
of D-18049_3 Kit of Parts
digits
(if option
is provided
).
10
Cannot
manually
dial
With a strap
lead
Defective
circuit
or
1. Check connections
per Table
off-hook
for ac
between
screw terminals
connections
on
B, C, D, or E
power failure
condi-
10 and 15 on PSB, can
D-180492
Kit of
2. Replace
D-180492
Kit of Parts
tion
manually
dial off-hook
Parts
for ac power
failure
(Wired for speaker-
condition
phone
option)
11
Cannot
turn
speaker-
Speakerphone
indicator
Handset
off-hook
Place handset
on-hook
phone
on when ON
lamp does not turn
on,
button
is depressed
but line lamp is lit.
(Wired for speaker-
'
phone
option)
No dial tone heard, but
Line button
not
Depress
line button
indicator
lamp turns
on
depressed
Speakerphone
indicator
Improper
connections
1. Check connections
per
lamp does not turn on
or defective
85B1
Table
B, C, D, or E
and neither
does line
power
unit
2. Check
for commercial
power
lamp
3. Check that 85B1 power
unit
is plugged
into commercial
ac power outlet
4. Check or replace
85B1 power
unit (should
read 18 to 25
VAC across secondary
screw
terminals)
i
,
,
|
*Refer
to 6.02 (4).
Page
52
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