Extron Electronics MLC 206 Setup Guide
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
Follow these steps to replace firmware in the MLC 206.
Step 1
Disconnect the power supply from the power source.
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.
Changes to firmware must be performed by authorized service personnel only.
To prevent electric shock, always unplug the MLC from the power source before opening the
enclosure.
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 two hex screw connectors.
Lift cover straight up.
A
B
CDE A
IR
Display/Source Control
B
C
RS-232
D E
1A 1B 2A 2B 3A
3B
Relays IR /RCM
A
B
C
D
1 2
3 4 5 6
Tally Out
Extron Switcher Control
A B
MLS
/Power
USA
Printed in the
07 01
33-644-01 A
Remove five screws.
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
Quick Start — Replacing MLC 206 Firmware, cont’d
A
B
CDEA
IR
Display/Source Control
B C
RS-232
DE
1A
1B2A
2B 3A
3B
Relays IR /RCM
A
B C
D
1
2
3 4
Tally Out
Extron Switcher Control
5
6
A
B
MLS
/Power
USA
Printed in the
07 01
33-644-01 A
Locating the U6 firmware IC chip,
and aligning the PLCC chip puller tool with the firmware chip slots
Align Notches
Step 5
After you are electrically grounded, align the hooks of a PLCC IC puller tool with the slots located in
opposite ends of the firmware chip.
Step 6
Insert the hooks into the slots, and squeeze the tool gently to grasp the chip.
Step 7
Pull the chip straight out of the socket, and set it aside.
Step 8
Align the notch on one end of the new firmware IC chip with the socket’s notch indicator (in the same
orientation you observed and noted in step four for the old chip).
Step 9
Gently but firmly press the chip into place in the socket.
Step 10
Replace the MLC’s rear cover, and fasten it with the screws and hex standoffs that were removed in
step 3.
Step 11
Re-mount the MLC, and reconnect the power supply to the power source.
Contact an Extron applications engineer if you need further assistance.
Extron Electronics, Asia
135 Joo Seng Road, #04-01
PM Industrial Building
Singapore 368363
+65.6383.4400
Fax +65.6383.4664
www.extron.com
Extron Electronics, USA
1230 South Lewis Street
Anaheim, CA 92805
USA
714.491.1500
Fax 714.491.1517
Extron Electronics, Europe
Beeldschermweg 6C
3821 AH Amersfoort
The Netherlands
+31.33.453.4040
Fax +31.33.453.4050
Extron Electronics, Japan
Daisan DMJ Building 6F
3-9-1 Kudan Minami
Chiyoda-ku, Tokyo 102-0074 Japan
+81.3.3511.7655
Fax +81.3.3511.7656
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