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Topic:
XP-6 IR port corrosion?
This thread has 3 replies. Displaying all posts.
Post 1 made on Monday January 4, 2021 at 20:37
pgaiduk
Long Time Member
Joined:
Posts:
May 2011
22
Two months ago a matrix switch stopped working.
After troubleshooting for a couple sessions it came to be bad serial control due to apparent corroded contacts on a PCM-4.
Yesterday lost audio control in the customer's gym due to poor contact on an XP-6 IR port. Upon closer inspection, corrosion with white deposits was found on all 6 IR ports.I started spinning and plugging/unplugging all the jacks to try to restore good connection and head off a future problem but now the main display has lost IR control unless I put sideways pressure on its jack.
Apparently messing with it made the problems worse.
All components are indoors and the system has worked flawlessly for years until two months ago.

Has anyone else seen these types of corrosion problems?
If so, is it just the port or are the electronics involved?
Do I need to replace this processor or should I actually try to take it apart and clean it?
I don't understand what the cause is. Galvanic reaction from dissimilar metals of some sort? Most of the emitters are RTI.
Post 2 made on Friday June 4, 2021 at 01:05
tgrugett
Select Member
Joined:
Posts:
August 2004
1,820
I experienced this once with a crestron MC3 processor. It was odd and I could not pinpoint the cause.
Post 3 made on Saturday June 5, 2021 at 10:44
buzz
Super Member
Joined:
Posts:
May 2003
3,893
Check for some sort of moisture problem or 'event" in the area. An ancient soda spill could cause this. The sugars will attract moisture from the air and form acids. I've seen components and traces more or less dissolved on PC boards. I would disassemble the unit and check for damage. If there is any sign of liquid damage, remove any batteries and thoroughly flush the unit with clean water.
Post 4 made on Wednesday September 8, 2021 at 05:16
Hackett
New Member
Joined:
Posts:
September 2021
1
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation.


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