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[Earl F Young]

The website worx; ph#s don't. Got some units to maybe have repaired🤔

[Mike Caldwell]

The website worx; ph#s don't. Got some units to maybe have repaired🤔

TDM was originally based in Oregon and then sold to a company in California maybe 16 or so years ago. I think they (the buyer) were a sound production company at some level and never really got up to full production on the TDM product line, the days of analog crossovers were starting to fade at that time.

At this time I think the website is still being kept up just as point of product reference with manuals and schematics available for download.

What crossovers do you have and what issues are you having with them.

[Ivan Beaver]

More than likely, they are using standard parts, so any competent repair person should be able to fix them.

Take it to a pro audio repair facility, not a consumer electronics place.

[Andrew Broughton]

More than likely, they are using standard parts, so any competent repair person should be able to fix them.

Take it to a pro audio repair facility, not a consumer electronics place.

They are very simple inside. Used to fix and mod them tons in the 90's.

[Earl F Young]

A couple of dual channel crossover units.

They are very simple inside. Used to fix and mod them tons in the 90's.

[Ivan Beaver]

A couple of dual channel crossover units.

I have never worked on a TDM unit, but a guess would any of several different types of 2 channel ICs, or a cracked connection or power supply issue.

You didn't say what the problem was.

[Mike Caldwell]

My systems were based around TDM crossovers.
The XLR connectors were kind of weak point, if you flexed them much the leads would crack loose on the circuit board.

Some had an output muting option with an FET across pins two and three on the outputs, had one of those go bad once, I just removed the muting circuit, wasn't really needed they didn't make big noise on power up or down.

Does yours have the limiters?

What issues does yours have, may be a simple fix.

[Chris Hindle]

My systems were based around TDM crossovers.
The XLR connectors were kind of weak point, if you flexed them much the leads would crack loose on the circuit board.

Some had an output muting option with an FET across pins two and three on the outputs, had one of those go bad once, I just removed the muting circuit, wasn't really needed they didn't make big noise on power up or down.

Does yours have the limiters?

What issues does yours have, may be a simple fix.

My 2nd 24CX-4 was likely finished 1st thing on a Monday morning.
I bought it used, and it was about 2 years old at that time.
Seems it was in a soundco "Just in case" rack, and was barely used.
I put it in my brand spankin new 8 mix bi-amp monitor rack..
First show, no issues.
Bounce around in the truck for 300 miles......
2nd show, 1 of the outputs is a little flakey. Only using 5 mixes that day so I patched around it.
Back at the shop, pulled the covers and lo and behold.....
3 of the XLR'e were NOT soldered to the board..
Easy fix, but still.......
I pulled the other CX-4, and 3 CX-2 that I had, they were all soldered up just fine.
My CX-4's didn't have limiters. The CX-2's did.

So, echoing Mike, it COULD be an easy fix. Pop the hood, and see what's inside.
Chris.

[Mike Caldwell]

I actually had a new one as well that had am intermittent output due to basically no solder on the XLR connector.

Getting to the underside/solder side side of the main board takes a little disassembly work, remove cover, pull off front panel, un-solder the three power supply leads, take the screws out of all the xlr connectors, remove about six small screws the hold circuit board to the chassis, gently move board forward to clear XLR connectors, lift out from front to remove.

On re-assembly be sure to use the shortest screws on the bottom screw holes of the front panel, long screws will hit the circuit board.

Yea I have had a few of them apart to repair and re-cap at one time or another!!

[ProSoundWeb Community]