Extron electronic 6400 Series, 3200 Series manual Checking/Replacing the BME External AC Input Fuse

AC POWER INPUT

FUSE: 250V 0.8A TT

MAX0.5A 50/60Hz

240V-100

Chapter 5 • Upgrades and Troubleshooting

Checking/Replacing the BME External AC Input Fuse

The AC power input cord plugs into the Power-Switch/Fuse assembly which is located on the rear panel in the lower left corner of the BME. To check/replace the external fuse, remove the power-cord and insert the tip of a small

screwdriver blade 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 5-2). 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.

Primary V+

Power Supply

Fuse

See note -

Page 5-2.

Redundant V+ Power Supply would be located here.

20 H1

Figure 5-6.A BME- Exploded view.

PO
+VWER
-VSUPPLIES
PRIMARY
REDUNDANT	TX	RS232COMMUNIC
	RX		BMEATIONS
	DI		REMOTE
	AGNOSTICS		SYSTEM
			STATUS

MATRIX	6400
VIDEO

Primary V- Power Supply (Redundant V- would be located beside Primary V-)

POWER SUPPLIES	COMMUNICATIONS			SYSTEM
+V -V
	RS232	BME	REMOTE	STATUS
PRIMARY	TX

REDUNDANTRX

DIAGNOSTICS

Extron • Matrix 3200/6400 Series • User’s Manual 5-6