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Author Topic: BTR800 Freaky Errors  (Read 2684 times)

David Sharrock

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BTR800 Freaky Errors
« on: August 28, 2016, 09:23:04 PM »

Hello,

Firstly, apologies, this is a first post here so forgive me if this is in the wrong forum.

We have a BTR-800 on our show that is, for lack of a better word, freaking out. It seems to be two things that cause it to misbehave but we haven't managed yet to work out why either of these things affect the unit or how to fix it.

1) When the unit just has 2 transmit frequencies and 3 receive frequencies programmed it behaves flawlessly. However as soon as RX 4 (the 4th receiver) is programmed (or RX 5-10 that is allocated to the 4th receiver in the unit) it starts to think that the beltpacks are transmitting to RX 1 to 3 and are sporadically transmitting TA A&B. It doesn't lock on, it quite literally flicks between all 3 randomly causing pops on the output to the comms master.

Currently it seems to be stuck on TA A&B however in the past I have seen it cycle between Talk A / Talk B and also SA functions.

For problem-solving help on this, we have tried a Spare BTR with the same frequencies as the offending unit as it doesn't recreate the same problems. I have tried new frequencies on the offending unit and the same problem is present the moment a RX4 frequency is programmed. Additionally, it makes no difference whether a pack is switched on or not at the base. It has these issues without any beltpacks transmitting so this can be ruled out quickly. I've also tried completely seperating the unit from the comms master, receive antenna system and transmitting antenna system and the problem is still there. Mysterious no?

2) The same unit hates to be racked with other units. Currently it sits on a box next to the rack with our other BTRs using the same antenna system and will play nicely (assuming we haven't tuned RX 4). However, oddly, a similar problem as described above seems to occur once it is back in the rack with the other units. Isolating it seems to help but it's a bit impractical to say the least.

We have sent the unit back for repair to be told they couldn't find anything wrong with it, however that is clearly not the case.

Has anyone seen this problem before or has any ideas how to remedy? I've tried looking for a service manual for the unit just so I can at least try and see if I can find out electronically what could be happening, but I admit my electronics knowledge isn't that great.

Any thoughts are greatly welcomed!

Thank you


ETA: After an extra bit of exploration, the issues only seem to crop up when the BTR is tuned to user bank. I couldn't leave it long enough in a factory defined bank to see if the issue was still happening but it seems happy, but obviously we don't use a factory defined bank here...
« Last Edit: August 28, 2016, 09:36:52 PM by D Sharrock »
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Mac Kerr

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« Reply #1 on: August 28, 2016, 10:02:04 PM »

Hello,

Firstly, apologies, this is a first post here so forgive me if this is in the wrong forum.

Please go to your profile and change the "Name" field to your real first and last name as required by the posting rules displayed in the header at the top of the section, and in the Site Rules and Suggestions in the Forum Announcements section, and on the registration page when you registered.

Mac
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David Sharrock

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Re: BTR800 Freaky Errors
« Reply #2 on: August 30, 2016, 12:11:13 PM »

Sincere appologies, all fixed now.

Any ideas on what could be causing these issues?
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Scott Helmke

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Re: BTR800 Freaky Errors
« Reply #3 on: August 30, 2016, 12:55:37 PM »

I haven't seen those issues, but I've seen a fair bit of weirdness from BTR base stations. Best thing you can do to start with is just get a can of DeOxit, pop the top on the base station, and reseat & clean all the cables you can find. Most BTR gear out there in the wild is at least five years old, probably older.
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David Sharrock

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Re: BTR800 Freaky Errors
« Reply #4 on: September 01, 2016, 04:42:28 PM »

Ours are definitely over the 5 year mark, but I will try your suggestion and see if it makes any difference. It certainly can't hurt!
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ProSoundWeb Community

Re: BTR800 Freaky Errors
« Reply #4 on: September 01, 2016, 04:42:28 PM »


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