Vector-LP
Ra
dio Beacon
Tr
ansmitter
Tec
hnical Inst
ruction Manual
Page 5-5
Section 5 Maintenance and Troub
leshooting
Issue 1.1
Table 5-1
:
Trou
ble
sho
oting and
Repl
a
c
eme
nt Tips
Front Pan
el
LED
Status
Messa
ge
Actio
n
See Troubleshooting/
Replac
emen
t Paragra
ph
See Re
-calib
ration
Paragrap
h
AC Main
s
Low AC Volta
ge
The ac voltag
e is
less than
170 V ac (or
90 V ac for V
R
12
5 tr
an
smi
tters). If the ac so
urce voltage is p
res
ent,
che
ck the ac
brea
ke
r at the back of the transmitter. If
the brea
ke
r is OK, replace the interfa
ce
PWB (A11
).
5.8.3 N/A
Low Voltage Power Suppl
y
LVPS Fault A or B
Repl
ace associated ac/dc universal input power supply [side A (U2) or
side B (U3)].
N/A N/A
Power Suppl
y
Over Voltage
PS
A or B
Repl
ace switch mod
e po
wer su
pply PWB (A2 of asso
ciated
RF po
wer m
odul
e).
5.6.1
3.6.13.4 (en
sure the
repla
ce
d/re
pa
ired mo
dule i
s
on the stan
db
y side)
Powe
r Suppl
y
Over Current
PS
A or B
Repl
ace switch mod
e po
wer su
pply PWB (A2 of asso
ciated
RF po
wer m
odul
e).
If the transmitter is ru
nnin
g in dc mod
e (o
ptional), and this ala
rm is in
dicate
d on th
e active sid
e, repla
ce
battery boo
st assembly A1
6. Otherwise,
ch
e
ck
cabli
n
g
betwe
en A7
and A3 throu
gh A6.
5.6.1
5.9
3.6.13.4 (en
sure the
repla
ce
d/re
pa
ired mo
dule i
s
on the stan
db
y side)
Powe
r Suppl
y
High Temp PS
A or B
Che
ck fans.
Ensu
re they are spinni
ng
at an adeq
uat
e
spe
ed (a mi
nimum of 300
0 RPM, see 3
.6.13.2). If
necessa
ry, re
place the app
rop
riate fan.
N/A
N/A
Powe
r Suppl
y
PS A or B Missi
ng Mod
ule
An RF po
wer
modul
e h
a
s b
een re
moved
from the asso
ciated
side.
N/A
N/A
PA Modulator
Fai
l
A or B
Che
ck/repl
ace FET on mo
dulator a
s
se
mbly (A5 of associ
ated RF
power mo
dul
e).
5.6.1
5.7
3.6.13.4 (en
sure the
repla
ce
d/re
pa
ired mo
dule i
s
on the stan
db
y side)
PA
PA Alarm
A or B
Che
ck/repl
ace FETs on p
o
w
er a
m
plifier
(A3 of asso
ci
ated RF po
wer mod
ule).
5.6.1
5.7
3.6.13.4 (en
sure the
repla
ce
d/re
pa
ired mo
dule i
s
on the stan
db
y side)
PA
PDM Inhibit A or B
A module has been removed from the tran
smitter. A PS Missing Module messag
e will indi
cate which modul
e
has b
een rem
oved.
N/A N/A
Exciter
Low
NVRAM
Bty
Repl
ace battery BT1 on the control/display PWB (A1).
N/A
N/A
Exciter
RF Fail A or
B
Repl
ace the RF synth
esi
zer PWB [sid
e A (A5) or
side
B (A8)].
5.8.1.1 4.3.6.1
4.3.6.9
Exciter
PDM Latch A or B
Cha
nge the a
c
tive side of the exciter a
n
d
run a
stand
by side test o
n
the power supply (see 3.
6.13.4).
If a fault
is detected, replace switch mode po
wer supply PWB of
faulty power module. If
no fault is det
ected, replace
interphase PDM driver
PWB [side A (A6) or ex
citer B (A9)].
5.8.1.2
4.3.6.3 (sin
gl
e side
) or
4.3.6.10 (du
al
side)
3.6.13.4 (en
sure the
repla
ce
d/re
pa
ired mo
dule i
s
on the stan
db
y side)
