Extron electronic MLS 306, MLS 506SA manual MLS 506MA Rear Panel Top View MLS 506MA Front Panel

2.Remove the switcher from the rack, or furniture and set it on a level, stable surface.

3.Remove the cover of the switcher (the top half of the enclosure) by removing the screws, then lifting the cover straight up. Set the cover down on a level surface, and save the screws for later use.

CAUTION

Do not touch any switches or other electronic components inside the switcher. Doing so could damage the switcher. Electrostatic discharge (ESD) can damage IC chips even though you cannot feel it. You must be electrically grounded before proceeding with jumper installation or replacement. A grounding wrist strap is recommended.

4.Locate the pairs of pins labeled JMP1 and JMP2 on the circuit board, as shown in the boxed area of the following picture, which shows the pins with the jumpers already set for the -6dB attenuation. The MLS 506MA is shown in the example below, but these jumpers are in the same location in all models.

MLS 506MA Rear Panel (Top View)

MLS 506MA Front Panel

(Top View)

5.After you are electrically grounded, place a jumper on the pins for the audio channel to which the -6dB attenuation will be applied, or remove a jumper to remove the attenuation.

•JMP1 is for the left audio channel.

•JMP2 is for the right audio channel.

The picture at right shows
jumpers set for both left and	JMP1 and JMP2 -6dB Audio Jumpers
right channels.

6.Replace the top cover on the switcher, and fasten it with the screws that were removed in step 3.

7.Rack mount the switcher or mount it into the furniture.

8.Reconnect the AC power cord.

MediaLink Switchers • Installation 2-13