Teledyne MagnaStar C-2000, User Manual, Page: 92 / 100

74
(Rev. 8/04)
®
Symptom 9.
Handset displays error codes or f
ailure indication.
10.
Cannot access maintenance screens.
11.
Handset speak
er v
olume not
loud enough/too loud.
Correcti
v
e Action
1.
If the f
ault code is an odd number
,
cycle po
wer to
the system using a 30 second interv
al between
break
er of
f to break
er on. If error codes or f
ailure
indication are still present on handset screen while attempting another call,
remo
v
e and replace
AR
TU.
2.
F
or e
v
en f
ault code numbers,
hang up all handsets
and try the air
-to-ground call again. If the f
ault
reoccurs,
cy
cle the po
wer as in Step 1 and try
again.
If the f
ault code persists,
remo
v
e and
replace the
AR
TU.
1.
Contact maintenance cre
w
for passcode.
2. Reset passcode to def
ault.
1.
Handset speak
er v
olume can be raised or lo
wered
independent of the e
xternal v
olume b
uttons.
Remarks * Allo
w
fi
v
e minutes for Built-In
T
est to
complete.
*
Refer to
AR
TU installation and replace-
ment procedure.
*
Ev
en number f
aults are reco
v
erable
faults (system may reco
v
er without
po
wer c
y
cling. Hang up handsets and
try
Air
-Ground call again.) Odd number
faults are non-reco
v
erable f
aults (c
ycling
po
wer to
AR
TU is necessary for the sys-
tem to reco
v
er).
MMTI Softw
are must be used to RESET
the Maintenance P
asscode. Select MMT
-
Installation at start-up option menu. Continue thru automatic tests to display screen #19 to RESET Maintenance P
asscode to f
actory def
ault.
Press
“9
”
for setup at main menu.
Press
“+
”
for more follo
wed by the
Maintenance P
asscode,
then
“+
”
for OK.
Press
“+
”
4 more times stopping at the
“SPEAKER GAINS
”
screen. Reduce or
increase the coarse adjustment to v
ary
initial of
f-hook speak
er v
olume.
C. Corr
ecti
v
e
Action Guide,
continued