
Express 125/250 User Manual, v.3.1 325
Replacing RIU fuses
The Remote Interface unit contains two pop-out 6.25 Amp fuses at the
left side of the rear panel. Inspect and replace as explained below.
1. Turn off the device.
2. Remove the power cord.
3. Pull the fuse tray out of its holder by placing something sharp behind
the tab on the bottom of the cover. The tray remains connected to the
tray holder but rotates downward for convenience.
CAUTION
: Operate the tray carefully to avoid damage.
4. Examine both fuses. Telltale signs of a blown fuse include
discoloration or deposits on the glass envelope and/or a visibly broken
fuse strip.
5. If you find a blown fuse, replace it with the fuse of the same type and
size.
6. With good fuses installed, rotate the tray up and inward until it is again
flush with the panel.
7. Replace the power cord and check the console for proper operation.
If still having problems, see Help from ETC Technical Services, page
11, to get assistance from ETC.
Remote Video Interface (RVI)
The Remote Video Interface provides ports for remote accessories. It
supports one monitor (the connector labeled CRT 1 is active), an
alphanumeric keyboard and an RFU, and provides a serial port for a
digitizer (digitizer not used with Express). The illustrations below show the
RVI’s front and back panels and indicate the connector used by each
accessory.
ETCNet Remote Video Interface back panel
ETCNet Remote Video Interface front panel
Fuses
The RVI contains a 6.25 Amp power fuse in a recessed tray at the right
side of the rear panel. Inspect and replace this fuse as explained in the
section above entitled Replacing RIU fuses.
The RVI unit also contains a 1.5 Amp fuse to protect the RFU circuit. This
fuse is contained in a pop-out receptacle located near the middle of the
rear panel. Inspect and replace this fuse as explained under External
device fuse, page 308.
Comentarios a estos manuales