Checking/Replacing The Bme Internal Power Supply Ac Input Fuses - Extron electronics 3200s User Manual

into the fuse-holder slot (the fuse-holder is located just below the power
switch). Pry the fuse-holder out, it contains the AC input fuse plus a
spare. If may be obvious that the fuse is blown, if not, check it with an
ohmmeter or any other continuity device if available. If the fuse is
blown, replace it with the provided spare. Plug the AC power cord in
and Power the BME ON. Verify that the unit powered ON correctly
(check Front Panel LEDs). If the LEDs are in the proper state, the
problem has been corrected. If not, contact Extron Technical Support.
Checking/Replacing the BME Internal Power Supply AC Input
Fuses
Each internal power supply has an AC input fuse. If a power supply fuse blows,
the Front Panel LED for that power supply will go OFF (it is normally solid ON). If
the BME has redundant power supplies, the redundant supply for the failed power
supply will assume the full load and its front panel diagnostic LED will blink
indicating that the Main (Primary) power supply is inoperative. To check/replace a
power supply fuse, unplug the AC power cord from the BME rear panel, remove
the Access Panel (see Page 5-3). The power supply fuse location is shown in Figure
5-6.A (circled). Remove the fuse from the problem power supply. If may be obvious
that the fuse is blown, if not, check it with an ohmmeter or any other continuity
device if available. If the fuse is blown, replace it, plug the AC power cord in,
power up the BME and check Diagnostic LEDs. If the problem persists, call Extron
Technical Support.
Redundant V+
Power Supply
would be
located here
Figure 5-6.A BME
exploded view
Matrix 3200/6400 Series • Upgrades and Troubleshooting
Primary V+
Power Supply
Fuse
1 9
J 1
2 0 1
2
PO
W ER
+ V SU
PP
-V LI ES
PR
IM
A RY
R ED
U N
DA
N T TX R S2 C O
M M
32 U N
IC AT
IO N
R X B M
E S
R EM
D IA O TE
G N
O S
SY
T IC ST
S ST EM
AT
U S
POWER SUPPLIES
- V
+ V
PRIMARY
REDUNDANT
Primary V-
Power Supply
(Redundant V-
would be
located beside
Primary V-)
COMMUNICATIONS
RS232 BME REMOTE
TX
RX
DIAGNOSTICS
AC POWER INPUT
FUSE: 250V 0.8A TT
SYSTEM
STATUS
5-7