Topic: m148 Problem :(

[keepongoin]

I sent you a PM Chuck.

I am trying to respond, but I am having problems with the site, or possibly my internet connection this morning...

there are quite a few site issues yesterday/today.

[Dutchman1101]

I sent you a PM Chuck.

I am trying to respond, but I am having problems with the site, or possibly my internet connection this morning...

I'm having some problems too Chuck. I figured out the volt meter though. I left the 148 on last night for about 4 hours. The batteries were fairly drianed too. As a matter of fact it got down to just the red light which means it's pretty drained. It was running at 50.2 volts for the first 2 hours. The greean light was still coming on. It started to go down slowly after that. It held steady at 48.2volts for about another hour and a half or so. It only dipped below 48volts after the red light was the only light on the battery tester and that was about an hour into that. Hope that make sense

I did some tests on the 671 and had no level drops what so ever. I did like 11 hours worth of tests to and nothing happened. I'm stumped. I guess I'll try again tonight doing 148>671 and see what happens.

Harrison

[Kindguy]

Strange

[sygdwm]

i know this sounds stupid, but have you swapped interconnects? sounds like the brick is fine.

[Dutchman1101]

i know this sounds stupid, but have you swapped interconnects? sounds like the brick is fine.

You know that's probably not a bad idea but the volume drop was on both channels at the same time so I don't think it's the interconnects. It's probably not a bad idea to test it though.

[Chuck]

You are running m148 (XLR out) into the Line in (RCA) jacks on the 671, right?
Keep testing, you will figure out what is going on.
BTW, now that you have the VOM, you can test the batteries in the 671 too.
I could not survive without a Volt Ohm Meter. You can check your AC in the house (be careful ) You can check your car battery too. Eventually, you will be checking resistance and after that, you can figure out how to check current draw.

FWIW, you can check continuity in your cables by setting that particular meter on the 200 ohm setting. Touch the probes to coorisponding sides of the cable ground. If it reads anything other than 1  ., there is conectivity. Do the same for the other connectors on the cable. SOme multimeters actually give you an audible signal when there is conectivity. That meter does not. You just have to look at the screen to see what is happening. When I check connectivity, I move the cable around, to see if there is a point where the connectivity is broken. It is more likely that there is a short or a near short in a cable. To determine that, check the ground against all of the other conductors. If you get a reading other than 1  ., than you have a short, and the cable is bad.

[Dutchman1101]

You are running m148 (XLR out) into the Line in (RCA) jacks on the 671, right?
Keep testing, you will figure out what is going on.
BTW, now that you have the VOM, you can test the batteries in the 671 too.
I could not survive without a Volt Ohm Meter. You can check your AC in the house (be careful ) You can check your car battery too. Eventually, you will be checking resistance and after that, you can figure out how to check current draw.

FWIW, you can check continuity in your cables by setting that particular meter on the 200 ohm setting. Touch the probes to coorisponding sides of the cable ground. If it reads anything other than 1  ., there is conectivity. Do the same for the other connectors on the cable. SOme multimeters actually give you an audible signal when there is conectivity. That meter does not. You just have to look at the screen to see what is happening. When I check connectivity, I move the cable around, to see if there is a point where the connectivity is broken. It is more likely that there is a short or a near short in a cable. To determine that, check the ground against all of the other conductors. If you get a reading other than 1  ., than you have a short, and the cable is bad.

Yes, XLR>RCA. I'll do another test tonight with the 148>671 to see what happens. I wonder what this is. Doug said again today that he has never heard of the 148 doing this. Has anyone heard of something like this happening? Maybe with other gear?

[THE NIZ BIAAAAACH!]

This happens with the sono sax, I think.  I heard somewhere that if the battery is drained it out puts a lower and lower signal.
I also ran another pre that did this but cant remember which one.

[Dutchman1101]

This happens with the sono sax, I think.  I heard somewhere that if the battery is drained it out puts a lower and lower signal.
I also ran another pre that did this but cant remember which one.

That makes sense but the test I did last night confirmed that the 148 was puting out proper voltage. It only dipped down when the batteries got really low. The two shows where the levels dropped the 148 was fully charged. If the levels drop tonight I'll test the voltage.

[marc0789]

Gee Harrison, you have had your share of troubles lately. +T for the troubles. Before sending it out to Doug, you should test it. Do you have a Volt Ohm Meter?

ditto that. unless you left it on for a couple of days and/or deep discharged while operating, these should last a whole lot longer.

[Dutchman1101]

Well guys, I did a test last night with the 148>671 and had no level drops. I'm stumped. I left all the gear in my bag and I closed to see if it was heat related but no level drops. I'll do another one tonight. The one thing I did different this time was I used a different flash card I guess I'll have to see tonight. Rig problems suck!

[THE NIZ BIAAAAACH!]

have you tried running a different pre in front of the 671, to see if the problem happens?

[Dutchman1101]

I'm definitely going to try that Adam. My test last night had the levels drop again. I tested the voltage on the 148 and it was at 50.5v so I'm not sure. I then went out of a TV into the 671 and got no level drops. I'm pretty sure it's the 148 at this point but the question is with no voltage drop what is causing this problem? FUCK!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Luckily Tim was gracious enough to loan me a UA-5. +T Tim!

[THE NIZ BIAAAAACH!]

also have you tested the output signal of the 148, instead of alwaystesting the phantom? I would do that also

[stober]

This happens with the sono sax, I think.  I heard somewhere that if the battery is drained it out puts a lower and lower signal.
I also ran another pre that did this but cant remember which one.

The m248 does this as well.