Extron Electronics MLC 206 Replacing Quick Start - Manual

Quick Start — Replacing MLC 206 Firmware
Firmware Replacement
In some cases the MLC’s firmware may require replacement with an updated version. We recommend
that you send the unit in to Extron for service and updates.
CAUTION Changes to firmware must be performed by authorized service personnel only.
Follow these steps to replace firmware in the MLC 206.
Step 1
Disconnect the power supply from the power source.
To prevent electric shock, always unplug the MLC from the power source before opening the
enclosure.
Step 2
Remove the MLC from the wall or furniture.
Step 3
Remove the MLC’s rear cover.
A. Remove the five Philips head screws that fasten the rear cover to the main part of the enclosure.
B. If applicable, disconnect the host computer’s RS-232 cable from the MLC’s 9-pin Control connector.
C. Remove the two hex standoffs, which are on either side of the 9-pin Control connector.
D. Lift the cover straight off the MLC.
Remove five screws.
Remove two hex screw connectors.
A B C D E A B C
IR Displa
y/Sour
ce Contr
ol
Extr
on Switc
her Contr
ol
Rela
ys
IR /RCM
RS-232 D E
A B C
A B
D
1A 1B 2A 2B 3A 3B
1 2 3 4 5 6
Tall
y Out
MLS /Power
33-644-01 A 07 01 Pr
inted in the USA
Lift cover straight up.
CAUTION Do not touch any other electronic components inside the MLC. Doing so could damage the
MLC. Electrostatic discharge (ESD) can damage IC chips even though you cannot feel it. You
must be electrically grounded before proceeding with firmware replacement. A grounding wrist
strap is recommended.
Step 4
Locate the main controller firmware chip on the circuit board at U6, and note which end has the
direction indicator notch, as shown in the following illustrations.
Notch
68-718-01, Rev. A
Printed in the USA
08 02