Question about IBM Infoprint 6500 Matrix Printer

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084 POWER 48V CHECK - IBM Infoprint 6500 Matrix Printer

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  • Stephen Wilkins
    Stephen Wilkins Mar 18, 2011

    What is the problem?

  • naveen M D
    naveen M D Mar 18, 2011

    whats da problem.............

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  • 713 Answers

Your power cord has went bad it has a short in it replace power cord.

Posted on Mar 18, 2011

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What is power 48v check see manual ?


You should check if the 48 volt is connected and correct. In the manual you can check the details. If you don't know what 48V is, don't try to check it.

Jul 09, 2014 | Printronix Line Matrix P5005B Printer

1 Answer

Slow printing


Either the power supply in not generating proper 48 Volts or the controller board is not detecting a 48V output from the power supply.
First of all make ensure that power supply and controller board are correctly connected (check for loose contacts). Unfortunately there's not much you can do. The problem is either in the power supply or the controller board. There is a special tool for testing the power supply and deciding whether to change the power supply or the controller. From what i've seen in the field, most of the times its the power supply that fails. I can send you the power supply test procedure. If youre interested letme know your email.

Jan 08, 2014 | Printronix P7000 FormLine PN P700502...

1 Answer

C451eb dead?


hard to say without more info. you probably know this , but as a condenser mic it requires 48v phantom power to operate. Does the pre-amp/mixer you are plugging it into provide that (there will be a button on it marked 48v)? If not, that is the problem.

Apr 30, 2011 | AKG C451B Professional Microphone

1 Answer

No sound pickup


For a mic like sennheiser ME66\K6 prof.mic.you have two options.

What might cause the blinking of the light,might be the battery,cause it functions in two ways,either by battery or by phantom power that needs to be activated by +48v power phantom on your mixer before it can work properly .

So you will do is either you get a replacement of the battery on get a mixer that has +48v power phantom power.

Jan 19, 2010 | Sennheiser ME66 / K6 Professional...

1 Answer

I cannot hear myself on the microphone shure sm58


What sort of a preamp are u using this needs to be plugged into the lo impedance XLR input (this is a lo output dynamic mic 1.85Mv out)
The XLR should be input pin 2 return (gnd) pin 3.This mic does not NOT use phantom power (48v) if it is a dual input (pin 1 48v) source make sure the phantom power is turned of.
If this is being done then there maybe a problem with the mic.
You can check this by plugging a source in to the input to check that it is working line out from cd player midi or some other source.
biinary 6

Sep 16, 2009 | Shure SM58 Professional Microphone

3 Answers

Can't operate my MXL 990


If it is an MXL 990 Condenser that comes in the grey case with a shockmount and a black hard mount I can solve your problem. (If it is USB I know nothing about that unit).

This MXL 990 microphone MUST have 48v phantom power in order to operate. If you aren't familiar with the term phantom power read the first link:

Phantom power - http://en.wikipedia.org/wiki/Phantom_power
MXL User Guide - http://www.mxlmics.com/support/guides.html

If yours is one of the older MXL 990's it should have an XLR connector on the bottom -
XLR Defined - http://en.wikipedia.org/wiki/XLR_connector

Your mixer (I am guessing its a Peavey, Tascam, Mackie) or something entry level like that may or may not have phantom power. I am guessing not. But if it does, it will have a switch that says 48v phantom power and most likely a green or red LED next to it to show you when its on. This mic will NOT work without phantom power.

Best suggestion: Verify that your mic is the MXL 990 Condenser, if it is it needs 48v phantom power. Check your mixer and see if it has 48v phantom power. The only computer soundcard that I know of that is used by a lot of folks is the M-Audio Delta 1010LT. It has XLR inputs but NO phantom power on it.

There's your answer.
Ray

Feb 09, 2009 | MXL 990s Professional Microphone

2 Answers

I need a 5kW DC generator with -48v output.


I have 5kW generators that produce -48V DC. The problem is that unless your generator is designed to produce -48V DC it would be difficult to retrofit an existing AC voltage output with a DC output.

Nov 25, 2008 | Kipor Electrical Supplies

1 Answer

Connecting phantom microphones without result


if you have a volt meter check the supply is working correctly
48v dc phantom power should be found between these pins on any xlr mic cable.

pin 1 and pin 2
also between pin1 and pin 3

make sure you have amps turned down before checking/switching 48v phantom power

as if all is up and running it can cause big noise in the speakers.

let me know how it goes

Apr 29, 2008 | Sanken 48V Phantom Power Supply P11SPT...

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