Extron electronic 6400s - Manual (Page 49)

5-7 Matrix 3200/6400 Series • Upgrades and Troubleshooting
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.
AC POWER INPUT
FUSE: 250V 0.8A TT
100-240V 0.5A MAX 50/60Hz
Figure 5-6.A BME
exploded view
1
2
19
J1
20
HIG H VO LTA GE
CAUTIO N
HIG H VO LTA GE
CAU TION
Fuse
PO WER SUPPLIES
COMMUNICA
TIONS
PRIMAR Y
TX RS232
BME REMO TE SYSTEM
ST ATUS
REDUND ANT
RX
DIA GNOSTICS
+V -V
POWER SUPPLIES COMMUNICATIONS
PRIMARY TX
RS232 BME REMOTE
SYSTEM
STATUS
REDUNDANT RX
DIAGNOSTICS
+V -V
Primary V+
Power Supply
Redundant V+
Power Supply
would be
located here
Primary V-
Power Supply
(Redundant V-
would be
located beside
Primary V-)