Extron-electronics MLC 206 AAP EC User Guide Uživatelský manuál stáhnout pdf (Strana 69)

B-5MediaLink Controllers • Dimensions, Templates, Replacements, and Upgrades

Replacements and Upgrades

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.

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.

2. Remove the MLC from the wall or furniture.

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.

CDE A

Display/Source Control

Extron Switcher Control

Relays IR/RCM

RS-232

D E

A B

1A 1B 2A 2B 3A

1 2 3 4 5 6

Tally Out

MLS

/Power

33-644-01 A

07 01

Printed 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.

4. Locate the main controller firmware chip on the circuit board, and note which

end has the direction indicator notch, as shown in the following illustrations.

Notch

1 2 ... 64 65 66 67 68 69 70 71 72

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