Question about Shure SM58 Professional Microphone

5 Answers

Hi - I have a TOA WT 870 Dual Wireless with a handheld SM58 and a guitar belt pack. When we last used the 58 about 2 months ago, everything worked fine. We have a new PA today, and now the 58 does not register a signal on the reciever at all. The second channel for the guitar works fine, but the mic does not. Changed the battery - the green light is on, tried switching the antennas, changing the angle on them. Tried a different xlr cable, in case on the off chance. Anyone got any suggestions? There is power to the mic receiver module when the system is turned on the LED's go up and down, same as on the other side, but there is no signal from the mic to the receiver. Is it possible that it is no longer able to FIND the receiver? Is there a 'pair' mode or anything that anyone knows of??? Any assistance greatly appreciated. Thanks :) Thanks

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  • 49 more comments 
  • Valerie Warner
    Valerie Warner Apr 09, 2011

    Hi - there is no indicator on the A channel that the antenna is receiving any signal. The B channel has an orange light that is lit even when no signal is present. This light is NOT lit up on the A channel. The A channel is for the mic (transmitter), the B channel for the guitar ( belt pack transmitter). The guitar channel works fine. I have also swapped out the antennas ( same part #) and they both work on the B channel, but neither works on the A channel. The mic for the A channel is a transmitter has had the batteries replaced. The on switch on the mic is lit green as expected.

    The LED's on the A and B channel "level indicators" scroll upwards when the unit powers on, however I cannot get a level to register following that initial on sequence.

    I have tried unplugging everything and starting over. It is either the transmitter or the receiver on the A channel. Perhaps they are no longer on the same frequency? Perhaps something in the antenna circut is broken???

  • Valerie Warner
    Valerie Warner Apr 09, 2011

    please see my reply to your comment :)

  • Valerie Warner
    Valerie Warner Apr 09, 2011

    I dont know where the comment went....

    Ok - the easy answer is "NO" there is no level indicator on channel A when the mic should be transmitting. The lights sroll upwards when the unit powers on, so I know there is power, and those lights work, however they do not indicate a level of signal from the mic.



    Also - the orange light that shows that the channel can recive is not lit on the A channel. It is on the B channel.



    Thanks :)

  • Valerie Warner
    Valerie Warner Apr 09, 2011

    hey! thanks for being here... it did not email me that you had replied or I would have gotten back up...tried to catch 90 mins of zzzz's

    Ok - I am leaning towards mic now too, with what you have told me... I note that the orange licght comes on in the B channel when the guitar pack is turned on. No corresponding light comes on when the mic gets turned on. Lets check for loose wires etc

  • Valerie Warner
    Valerie Warner Apr 09, 2011

    i hear ya - if you are still there, can we crack this mic open and check? The cartridge is less than 4 months old

  • Valerie Warner
    Valerie Warner Apr 09, 2011

    def would appreciate your assistance with this :) I have about an hour before I need to load up the truck tops...

  • Valerie Warner
    Valerie Warner Apr 09, 2011

    i dont know where my comments keep going? Once I make them, I cannot see them, they dissapear

  • Valerie Warner
    Valerie Warner Apr 09, 2011

    ok - now I can see the last comments I made :)

  • Valerie Warner
    Valerie Warner Apr 09, 2011

    i keep replying to you, but my comments are vanishing every time? I could clearly see them on the screen, now they are gone again.

    I appreciate you trying to help - if it were possible for you to get my message, I am sure you would have probably been able to fix this so she could have her mic this morning.



    I'm still here for another 20 mins if you get this and can help. It would be nice to get an actual fix for the money I have spent so far on this site.



    Thanks

  • Valerie Warner
    Valerie Warner Apr 12, 2011

    just so you know, I did not select the "choose another" option, it seems to have been selected for me. I still hope that you might be able to assist me. I have the mic here, and hope to hear back from you. Val

  • Valerie Warner
    Valerie Warner Apr 12, 2011

    are you talking about the output of the reciever? the transmitter ( mic) has no pin outs. It is a wireless SM58. There is no XLR connection in the mic to check impedance on.

  • Valerie Warner
    Valerie Warner Apr 12, 2011

    I need assistance with a WIRELESS SM 58 mic. It does not appear to be transmitting. I have changed the battery. It is a dual reciever, and the A channel is the SM58 mic, the B channel is a guitar belt pack. The belt pack works fine. When I turn it on, an orange light comes on the front of the B channel of the reciever indicating that the signal is being recieved. This does not happen when I turn on the WIRELESS SM 58 mic. The light on the reciever does not light up. The light on the bottom of the mic is green when it is turned on. If someone can help me I would be grateful. I am new to this service and would appreciate some assistance here. Thanks Val

  • Valerie Warner
    Valerie Warner Apr 12, 2011

    do you mean remove the wind screen, or a part underneath that?

  • Valerie Warner
    Valerie Warner Apr 12, 2011

    there is a joint that screws off for the battery port, and another one closer to the top, but below the wind screen. I have removed the wind screen and do not see any wiring. I have also removed the next joint section, and there is a red and white wire coming out of the capsule above, welded in place with some kind of glue as it passes through the metal, and the red and white wires go into a jumper type fitting that is plugged into the lower section. the connector is fully plugged into the socket, and the wires appear undisturbed and intact.

  • Valerie Warner
    Valerie Warner Apr 12, 2011

    btw - thanks very much for helping me :) I really appreciate it!

  • Valerie Warner
    Valerie Warner Apr 12, 2011

    that metal mesh (silver with little round holes in it?) only moved up a wee bit - 2-3 mm and I cannot see any wiring

  • Valerie Warner
    Valerie Warner Apr 12, 2011

    i dont know if you are getting my comments or not... I got three emails, but i dont see that you have asked me to do anything more that I have done. I am not sure I have the right wire mesh .... I removed the windscreen, and underneath there is a wire mesh that goes around the mic capsule itself. I have tried pulling this up carefully as you have indicated but I can only move it 2-3 mm, and it really does not want to come up further. I am not sure I should do this...I dont want to break it further...

    were you able to read my other comments?



    I have a meeting in 10 mins for about 2 hrs... I will be back then, if we can pick up next time you are availble I would be grateful. :) Thanks for your help. Valerie

  • Valerie Warner
    Valerie Warner Apr 12, 2011

    I am trying to pull it out, but it will not come out... I'm pulling pretty hard...

  • Valerie Warner
    Valerie Warner Apr 12, 2011

    i think i can get it out entirely from the OTHER side if I remove three little screws...

  • Valerie Warner
    Valerie Warner Apr 13, 2011

    I am back from my meeting :) i cannot nudge it loose> in fact - i have pulled on it so hard that the black top has come off

  • Valerie Warner
    Valerie Warner Apr 13, 2011

    I managed to put it back on and get the metal mesh tucked back in...but the capusle is NOT coming out of this in one piece....

  • Valerie Warner
    Valerie Warner Apr 13, 2011

    the capsule was brand new 3 months ago - it was replaced for a recording session

  • Valerie Warner
    Valerie Warner Apr 13, 2011

    i was able to unscrew it in the part to expose the connector and the red and white wire - the wiring looks good in that part. did you want me to remove the three screws?

  • Valerie Warner
    Valerie Warner Apr 13, 2011

    so i removed the three screw and looked in the capsule from the bottom, and the wires are all connected. :)

  • Valerie Warner
    Valerie Warner Apr 13, 2011

    on the bottom there is an ON/OFF switch and a green light and a red light. There are no screws on the bottom of the mic

  • Valerie Warner
    Valerie Warner Apr 13, 2011

    yes it does :)

  • Valerie Warner
    Valerie Warner Apr 13, 2011

    I hope you got my comment that yes the green light comes on :) One of my kids is not feeling well and needs me upstairs, so I am going to have to sign off for the night :( Iwill rty your next suggestion when I come back down later on :) I appreciate your assistance. Val

  • Valerie Warner
    Valerie Warner Apr 13, 2011

    I don't know how to change the group or freqyency, but it is possible that anything could have been done accidentally...

  • Valerie Warner
    Valerie Warner Apr 13, 2011

    This was where I started, but I don't know how to check it? The equipment is older, but only in light use by my daughter. It's not on the road and it's not being abused... It all worked fine until we brought it upstairs to connect it to the new system... I have swapped out EVERYTHING else in the signal path - it is not the cabling, or the channel on the mixer. THere is power to the reciever module ( the level signal LED sweeps upwards at power on). The B channel for the guitar works fine F8750 is stickered as the frequency, it is the A channel for the mic that is not working. I am not sure if it is the receiver or the transmitter, but the light on the reciver that should come on to indicate that it is connected to the mic transmitter when the transmitter is turned on DOES NOT come on. It does on the B channel, but not on the A channel. There is a fresh battery in the mic. the LED on the mic goes green when turned on. Both pieices appear to work separately, just not together....
    I

  • Valerie Warner
    Valerie Warner Apr 13, 2011

    yes - that is the antenna position - diversity wireless - The Belt pack frequcny is F8750 and the Mic is E4000 as indicated by the stickers on the front of the reciever.
    The PA is not the problem - I can swap out and use a regualr dynamic 58 on the same channel, same xlr cable etc without difficulty, but when I move that to the wireless reciever output, there is no noticible output. I dont think the problem is with the xlr out on the reciver, becasue of the light on the front that is not lighting up when the mic is turned on. I think the problem is one of
    a) the mic is not transmitting
    b) the mic is not transmitting on the correct frequency
    c) the A channel of the receiver is unable to recieve

    Hope this helps... I dont know anything about changing frequcny for b) I am not sure it is even possible. I think they come preset...

    I really appreciate your assistance :) Val

  • Valerie Warner
    Valerie Warner Apr 13, 2011

    here is a photo of the mic transmitter

    and the receiver

  • Valerie Warner
    Valerie Warner Apr 13, 2011

    here is the B channel ( guitar transmitter) it is working fine

  • Valerie Warner
    Valerie Warner Apr 13, 2011

    hi - i keep getting emails, but I cannot see any new comments... I want to keep working with you if that is ok...you seem to know the product I have. Thanks for sticking with me :) My comments that I make in reply to your questions keep vanishing, so I don't know if you are getting them or not. Am I doing something wrong when I am replying? If so, please let me know. Thanks, Val

  • Valerie Warner
    Valerie Warner Apr 13, 2011

    here is the mic transmitter and the reciever. both are turned on - note that the orannge light on the reciver is not lit.

  • Valerie Warner
    Valerie Warner Apr 13, 2011

    Hi Fredy - sorry for not being clearer in my correspondence - the light comes on the reciever when the belt pack is ON ( b channel as expected). The light is off when the belt pack is off. Sorry for throwing you off there...I'm not sure how to say it any clearer than I already have. The B channel of this unit is WORKING FINE AND AS EXPECTED. it is the A channel that is not.
    I am also in Canada, don't know if this afftects the FCC rules. Is that in Canada?

  • Valerie Warner
    Valerie Warner Apr 14, 2011

    Hi - the gain setting on the mic had not been touched ( it's under the battery cover) but i tried adjusting it as well, no change :(

  • Valerie Warner
    Valerie Warner Apr 14, 2011

    I had put the codes in an earlier message - they are E4000 for the mic and F8750 for the guitar belt pack.

    I only mentioned the LED scrolling up, as it is the only indiation of power to that module that I have. Were it not for that, I might be questioning if the module perhaps no longer had a power supply availble to it...

  • Valerie Warner
    Valerie Warner Apr 14, 2011

    E4000 on the receiver for the mic portion and F8750 for the guitar :)

  • Valerie Warner
    Valerie Warner Apr 14, 2011

    it worked fine downstairs...last time we used it was about 2 months ago. Last week, we brought it upstairs and reconnected it, and it did not work anymore....

  • Valerie Warner
    Valerie Warner Apr 14, 2011

    the mic says E4000 as well. When we set stuff up again upstairs, I turned on thereciever first, then the transmitter - no signal was there...
    I don't know how to "rematch" them - this was the kind of info I am looking for, if possible, I dont know how to do it...

  • Valerie Warner
    Valerie Warner Apr 14, 2011

    I do have an electronic copy of the owners manual. It does not tell me how to match them up, but there are electronic diagrams in it. If it would be of assistance to you, I will send you a copy.: )

  • Valerie Warner
    Valerie Warner Apr 14, 2011

    no flourescents in the room. this computer is the only one near by... definately no metal cabinents. it does not make a difference if this computer is turned on or not... I have tried turing it off, and also turning off the wireless signal from it...

  • Valerie Warner
    Valerie Warner Apr 14, 2011

    cool - I tried to find any technical notes on them, but there was nothing in the database I have access to... I am so grateful for your continued perseverence :) I am not an expert on this stuff; it's beyond my realm, and I have done everything I can think of...

  • Valerie Warner
    Valerie Warner Apr 14, 2011

    what is the element? I know the SM58 capusule was new about 4 months ago for a live recording...please don't give up on me...

    My now 12 yr old saved up her birthday/ Christmas and tooth fairy money to buy this for herself. I am a single mom, and full time student, so I really need to fix this one. I cannot afford to replace it for her, and she has only used it for 2 months downstairs... She has not even managed to use it on a gig...she's going to be so crushed if I can't make it work again...

  • Valerie Warner
    Valerie Warner Apr 14, 2011

    grandpa is an electronics genius, but he does not do mics and stuff. He fixes commercial microwave ovens and tv's. If there is some other crazy stuff that you could tell him to do, we could try that too. I'd have to take the stuff over to his place though; he's in another city.

  • Valerie Warner
    Valerie Warner Apr 14, 2011

    there is a wireless router in the house - it is located in the basement, about 10 feet from where the mic was set up downstairs. This computer I am on was not down there though. I can take it down there to her rehearsal space again, but not until tomorrow now. ( i also have a mobility disability, and don't have too much strength left for carrying stuff on the stairs tonight and the kids are already in bed for the night) I will move it back down in the morning and let you know after I check it out down there. Thanks for sticking with me :) ( I cannot see any of my comments any more.... none after the photos I posted...just so you know)

  • Valerie Warner
    Valerie Warner Apr 14, 2011

    i will do that in the morning...hope you got my other message. If you have a moment and want to see who you are helping, check out www.facebook.com/victoriamarie.ca
    This is my daughter's website. She also has a youtube channel called victoriamarie2011. Let me know if you get a chance to see them :) Val

  • Valerie Warner
    Valerie Warner Apr 14, 2011

    yes - it's hers... she says she has not dropped it, but you never know... her little brother could have even done that without her knowledge if he was messing around with it...

  • Valerie Warner
    Valerie Warner Apr 14, 2011

    I can only see your posts, not my replies... I have to go up to the top to my original post to see any of my comments, and they stop after the photos from earlier... I see my comments as a thread when I first post them, but then they vanish and all I see is yours, lol. and BIG THANKS for sticking with me... I am so grateful... I noticed when looking for the frequency on the mic that it is a TOA mic # WM291 with a SM58 head ( cartridge) in reading the manual... did not know that before either, lol...

  • Valerie Warner
    Valerie Warner Apr 14, 2011

    ya - i got that one after you asked me to find the frqwuency on the mic itself...i never noticed it was a TOA...it said Shure SM58 on the top, so I assumed that was the model, but it appears to be a 'partnership' assembly with TOA.... Did you check out Tori's web stuff as well? I am heading up to sleep - dog tired tonight. Will shut all the possible wireless stuff off in the am and see if that makes a difference. The phones are wireless here too. Any chance that the local TV station ( A Channel Barrie) is a problem? Someone else mentioned that...thanks again :)

  • Valerie Warner
    Valerie Warner Apr 14, 2011

    Will do...if you're concerned about your girls seeing it, you havent found the right site... my girl is only 12 yrs old, and the kids love her. She signs postcards for them all... Victoriamarie.ca ( there are a bizillion other Victoria Marie's out there for sure) Gonna start the process here in about 30 mins after we get school started. :) Thanks again. Valerie

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5 Answers

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  • Master
  • 1,622 Answers

Hi, make sure the signal flow from the amplifier through the process to the speaker has sound coming out from it..

Also are you familiar with SM 58 mic,how to mute and unmute the mic?..the color of the lightthat shw and what they indicate.

Green light ----mic on.

Yellow -----mic mute.


If after all this, Not sound, that means you will need to use a meter to read the mic itself by opening up the mic from the head (cone area).Unscrew and remove the cone test connections inside setting it at continuity on the meter..

If found that some of the connections are not working, then the mic is gone..You will need to replace it with another...

Note,, SM 58 mics,also get damaged fast..not to strong for rugged works..And you might end upbuying a new mic..But make sure you don't use SM 58 again, Change to something else..still contact your repair man...

Take care.

Take care...

Posted on Apr 14, 2011

  • SANYADE  OMOTOLA
    SANYADE OMOTOLA Apr 14, 2011

    what are you using channel A for and what are you using channel B for ...

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  • Master
  • 1,961 Answers

Hi, do you have a multimeter?Set the tester to resistance reading,measure the resistance of the mic's voice coil. detached the wiring of the voice coil then measure the resistance the reading must range from 500- 800 ohms.the voice coil is good if not replace the voice coil
Note!voice coil is place under the mic head twist the mic head counter clock wise to open it you will see the voice coil..
good luck let me hear how it goes...

Posted on Apr 13, 2011

  • 2 more comments 
  • Danilo Baraquiel
    Danilo Baraquiel Apr 13, 2011

    hi valerie,

    your receiver is not receiving any signal from the Mic means that the transmitter of the mic has a problem. You can try to re solder the components from the Mic board specially the coils.loose board or cold solder causes this problem...try first these procedures and post back for further assistance...

  • Danilo Baraquiel
    Danilo Baraquiel Apr 14, 2011

    hi,did you try my solution?

  • Danilo Baraquiel
    Danilo Baraquiel Apr 14, 2011

    hi valerie,
    your receiver is not receiving any signal from the Mic means that the transmitter of the mic has a problem. You can try to re solder the components from the Mic board specially the coils.loose board or cold solder causes this problem...try first these procedures and post back for further assistance...

  • Danilo Baraquiel
    Danilo Baraquiel Apr 14, 2011

    hello Your problem keeps appearing on recent comments but I cannot see any comments it is blank. I do not know what message your posting.I cant give any reply .Lets just wait until you're message appear..

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  • Shure Master
  • 5,603 Answers

Do not depend on an LED indicator for battery condition. On the off chance you might have been using rechargeables, these batteries will not work reliably so if you have done that, try alkaline batteries of good quality. Since you probably don't have test equipment, try to find somebody that can test if the mic is emitting a signal. Possibly an amateur radio op in your area can help you test for emission from the mic. With storage, sometimes battery terminals get corrosion... again, do not trust LED battery indicators as they sometimes give false indications. Try yet another set of batteries known to be fresh. These are just hints of things to do. I have test equippment but that doesn't help you.

Posted on Apr 13, 2011

  • 1 more comment 
  • Fred Yearian Apr 13, 2011

    There is no chance that the antennas would be bad... they are too simple and if one was broken you would see it. The problem is we can't tell whether the receiver or the transmitter is at fault... DO NOT believe any of the LED indicators or try to deduce things from them... they are very crude devices that may or may not reflect an electronic problem within a part of the unit. We also have to consider the possibility that the unit is picking up RF interference from a source that overrides the mic receiver. The FCC has re-assigned some stuff lately and these devices are on a secondary usage as being unlicensed. If a strong local transmitter just came on the channel it would overide the tiny transmitter in the mic. The orange light on the reciever indicates signal is being received... the fact that it is not on on the A channel but is on with the B channel even without the beltpack on would TEND to point to a receiver problem with A channel.
    HOWEVER, the fact that the B channel is showing it is receiving even though you say the guitar belt pack is off is indicating you are getting interfered with. This may be due to a re-assignment of a licensed transmitter nearby. It could also totally block the other channel by overloading the receiver. This is a test I would do: Take the units to the "country" or away from where you are and see how they act. Without either the beltpack or the mic on, the lights should be off. If this is an interference problem, FIRST turn off things in your own area an see if the lights go out on the unit... If they do then your other equipment may be generating the interference. If when you take units away and they are not being interfered with, then sorry, you will have to get a new system that uses other frequency band since these units are a secondary user with no rights to a clear channel per FCC rules.

  • Fred Yearian Apr 13, 2011

    The Canadian FCC is the DOC and these devices are under part 74 of their rules.
    The fact that the audio signal LED's cycle for both channels does not exhonerate the channel A receiver as it is the RF portion that is in question, not the audio portion. There are actually two receivers for each device and they vote between them for each of the channels as to which is best to use. We need to know what frequency your channel A is on... There will be a label with a letter and 4 digits following. Note the frequencies allocated in Canada are in the TV Channel 7 through 13 bands... this is where the shift to digital TV has been made so it is possible they have set new transmitters right near your wireless frequency and some of the new technologies will not register on the lights, yet they will interfere with the operation. You will have no recourse if this is the problem since these mics are "secondary" users of the band. We need to find out if the mic is emiitting RF so we need the frequency and we can decode that if you send the letter and the four digits from the label. Depending on the frequency, we might be able to test the mic using a TV set to see if it is emitting anything... it won't come through the TV but might show up as a change of the screen noise that would indicate it is operating. So please send those codes.

  • Fred Yearian Apr 14, 2011

    The mic should be on 184.00 MHz... This is dead centered on the old TV channel 8. So take a standard TV and tune it to channel 8 and turn the mic on and off very near the antenna of the TV and look for any disturbance of the picture... This is not a perfect test, however if you see a disturbance then the mic transmitter is likely putting out RF... I don't know what resources like electronic shops you might have there... One would be able to see the carrier transmissions of the mic using a 200 MHz oscilloscope for instance. This is frustrating for me as it takes only a couple minutes with the right test equipment to find which half of the system is at fault. You might be able to get the receiver to respond to the second harmonic of a local oscillator of an FM radio... try taking a portable FM radio and holding it near the antennas of the TOA tune it VERY, VERY slowly across the band with both the belt pack off and the mic off... see if you can get the orange receiver lights to come on. If B channel happens to and the A does not, the porblem may be with the reciever module. Again this is not a positive test, but give the resources you might have this might give us something to go on. By the way, I am an electrical engineer and a ham radio operator as well.

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  • Master
  • 3,018 Answers

Hello,
Are you getting any response on the level indicator when you are talking into the mic?

Posted on Apr 09, 2011

  • 41 more comments 
  • Iron
    Iron Apr 09, 2011

    In other words is the needle moving on the turner?

  • Iron
    Iron Apr 09, 2011

    Well, with the set up you are using I am not leaning towards being off frequency. I am thinking your cartridge in the microphone has gone bad. If you would like I can provide steps to replace it.

  • Iron
    Iron Apr 09, 2011

    Don't worry. I won't run out on you :)

  • Iron
    Iron Apr 09, 2011

    To see your comments click on "see additional comments" and you can see what you have wrote.

  • Iron
    Iron Apr 09, 2011

    Sometimes, rarely, the module can go bad and needs replaced in the tuner. Your unit will not just go off frequency because of a new PA and neither will your tuner. You mic is not sending a signal so the turner will not respond.

  • Iron
    Iron Apr 09, 2011

    Have you dropped your mic lately? Sometimes wires come loose inside too.

  • Iron
    Iron Apr 12, 2011

    Unscrew the top pf the mic and carefully pull the metal mesh up just enough to get a look at the mic wiring. What do you see?

  • Iron
    Iron Apr 12, 2011

    top *of* the mic that is. Unscrew the top pf the mic and carefully pull the metal mesh up just enough to get a look at the mic wiring. What do you see?

  • Iron
    Iron Apr 12, 2011

    Unscrew the whole widescreen (turning counter clockwise) The cartridge will now be exposed. Grab it and gently pull it out of the microphone just enough to inspect the two wires for a good connection. A slight tug on them will tell you this. Should a wire be loose re soldier it. While you do this I will list the steps to inspect through the bottom of the mic.

  • Iron
    Iron Apr 12, 2011

    Below the wind screen - There is a capsule. It is difficult to remove but you should be able to remove the capsule out of the microphone. You will have to nudge it loose. Then remove it. Look down inside. Do the wires look intact? Wiggle them to make sure they are in place properly.

  • Iron
    Iron Apr 12, 2011

    The capsule will have terminal wires on the so just pull it up a bit for inspection.

  • Iron
    Iron Apr 13, 2011

    The three screws on the bottom is another part of inspection. We don't want to have but one section at a time off.

  • Iron
    Iron Apr 13, 2011

    And your welcome :)

  • Iron
    Iron Apr 13, 2011

    Valerie how are you coming? I will be on here for another 5 hours or so just let me know :)

  • Iron
    Iron Apr 13, 2011

    The capsule may be new but I am trying to make sure all the wires are connected as they should be. Mics get put into bags and are moved around a lot. So a wire popping loose is a bit common. How about the bottom. Lets pull the bottom off and check the looks of the wiring from the underneath.

  • Iron
    Iron Apr 13, 2011

    There is a transmitter inside your microphone. In most cases it is accessed through the top. This is what I am wondering is failing you. It is in the center of the microphone.

  • Iron
    Iron Apr 13, 2011

    First we check all the wire connections.

  • Iron
    Iron Apr 13, 2011

    Tell me first looking at the bottom is there a "reassessed" screw in the middle? If so the use a flathead screwdriver and turn it counter clockwise to access the bottom.

  • Iron
    Iron Apr 13, 2011

    And did you say weather or not the green light came on when the mic was switched on?

  • Iron
    Iron Apr 13, 2011

    I understand. I did receive it. Did you by chance change the group or frequency?

  • Iron
    Iron Apr 13, 2011

    Has it somehow come out of sink? Has this been double checked? I will check back on this tomorrow. Sometime around 0700 GMT And see what you have found. We'll get it figured out.

  • Iron
    Iron Apr 13, 2011

    You always want the angle of the antennas to be 90 degrees to each other and 45 degrees to the ground. They do the same thing but this is to make sure at least one antenna is always getting a good reception. What is the frequency and the bank of your belt pack and receiver? You say you got a new PA. Did you make sure and mic it to vocals? Go through and make sure everything is on the same frequency and band. Recheck it all please. Just to make sure all of that is functioning.

  • Iron
    Iron Apr 13, 2011

    I just got this comment. Sorry. What setting do you have on your mic? In other words what frequency/ bank does your mic say on the display?

  • Iron
    Iron Apr 13, 2011

    I don't suppose somehow the gain is not turned up on the microphone? If your gain is down then no lights will illuminate on receiver. There should be an adjustment on the bottom of your mic. Turn it to the right a bit and see what happens.

  • Iron
    Iron Apr 13, 2011

    I would check the gain on your mic for sure. Turn the gain switch to the right and let me know if this has an effect. I'll be on here for a while :)

  • Iron
    Iron Apr 14, 2011

    In that case what frequency/ bank does your mic say on the display?

  • Iron
    Iron Apr 14, 2011

    Also please tell me what happened before the mic started to malfunction. It worked fine you put it in a bag and next day it did not work?

  • Iron
    Iron Apr 14, 2011

    E 4000 means your receiver is receiving on 184MHz.. On the microphone itself what does the channel number/frequency say? last number/s should be group and the second should be the channel. And you moved everything upstairs? Did you rematch the mic again to the receiver again. Did you turn the receiver on then the transmitter and make sure they matched?

  • Iron
    Iron Apr 14, 2011

    Well... they are matched. You adjusted nothing and from the numbers you gave me nothing has changed. you kept everything away from metal cabinets and computers did you?

  • Iron
    Iron Apr 14, 2011

    Are there florescent lights in the room?

  • Iron
    Iron Apr 14, 2011

    I have a copy for both the microphone and and receiver sitting on my PC now :)

  • Iron
    Iron Apr 14, 2011

    E4000 are the frequency on both the mic and receiver so they are matched. How old is the element in your mic. Just thinking we are running out of possibilities., The florescent light and computer question was because the put out high frequencies and can interfere and prevent the signal from the mic getting to the receiver.

  • Iron
    Iron Apr 14, 2011

    No worries :) that's what I'm here for. Some solutions work like this. Thank you for the offer though :) OK so do you have a PC in the vicinity? Perhaps a modem? Wireless maybe? a scanner? Anything that may have a frequency upstairs that may be interfering now that was not upstairs. I know this sounds kooky but the only way to know for sure is to relocate your exact setup upstairs to the downstairs where it last worked.

  • Iron
    Iron Apr 14, 2011

    *may be interfering upstairs that it might not have when your setup was downstairs*?

  • Iron
    Iron Apr 14, 2011

    I won't give up. The element is the capsule. All microphones have one in one form of another. They are ceramic and when they fail so too does the mic. But I want to be absolutely sure nothing else can be wrong before we try replacing anything.

  • Iron
    Iron Apr 14, 2011

    OK so do you have a PC in the vicinity? Perhaps a modem? Wireless maybe? a scanner? Anything that may have a frequency upstairs that may be interfering now that was not upstairs. I know this sounds kooky but the only way to know for sure is to relocate your exact setup upstairs to the downstairs where it last worked.

  • Iron
    Iron Apr 14, 2011

    That computer could be the cause. If you just turn the modem and the computer completely off this would work. So long as the signal and PC are off. Moving should not be necessary. If you go below my name and click "view more comments" it should expand and you can scroll down and see the comments. So is this your daughters mic? She uses it? Does it ever get dropped? Dropping it is what usually breaks the ceramic element or damages it. Just a thought there.

  • Iron
    Iron Apr 14, 2011

    I will stick with you until we get it running one way or another. I will contact SM58 tomorrow as well just to double check my "skills" lol. Don't worry, this is what I am here for.

  • Iron
    Iron Apr 14, 2011

    I was just now able to see your pics. I have been looking at the wrong mic lolz. I did not know it was a TOA http://www.toaelectronics.com/disc/manua... if you copy and paste that link then you will have the manual for your mic as well :)

  • Iron
    Iron Apr 14, 2011

    Well, it is possible that the TV station is interfering. Phones could be doing this too. If you have the phone model I can try to track down the frequency. Depends on how new it is. Most new phones transmit on a gigahertz. rather than a megahertz. The higher up ones are a digital signal. She looks good in pink :) but all I can do is take a peak. I have a 5 and 6 year old girls both in Kindergarten lol. If you shut off all the wireless stuff and still does not work. Then if you can try to take the setup downstairs. Just what you need for vocals and see if the basement . See if the basement walls were giving you some frequency protection that the upstairs is not. If none of this proves to help then I would almost have to say you will need to replace that cartridge again. Anytime they get dropped they can break. I will be on tomorrow as usual :)

  • Iron
    Iron Apr 14, 2011

    No not concerned lol. Pink cowgirl hat yes? :) I will be off here for a bit today but will return later in the evening. Will see how things turned out then.

  • Iron
    Iron Apr 15, 2011

    How did things turn out?

  • Iron
    Iron Apr 16, 2011

    Well, how did it turn out?

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  • Shure Master
  • 73,710 Answers

Hello
First of all check the impedence [resistance] of its output connections. you can check it with measuring the resistance of pin [2=>3]. there must be an impedence of 300 to 400Ohms. Measure it with a high quality digital multimeter. Never use analogue multimeter. If these connections shows the above said resistance range, and still the mic does not works, the cartridge is faulty, and should be replaced with ORIGINAL one by any experienced service technician. If it is found open circuted, the transformer inside it is faulty. If you have its manual things are easy. The XLR sockets' internal connection diagram is shown in it. If you don't have one, send your email address to me by Fixya. I can't upload it to you by this site, as it does not allow me to send such large files through.
Anyway, when you replace these components, be sure it is an orginal one. Insist on orginal, as you are a professional mucian. OK.
Thanks for using Fixya.

Posted on Apr 09, 2011

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