Question about Shure Beta 87A Professional Microphone

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Access switches Someone pushed the switches in so they are not workable. I need to find out how to remove the printed circuit board and see how to put the switches back where they belong. I have the unit printed circuit board in view and have removed the locking ring. Our mic is the Shure Beta 87.

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  • darmar61 Jan 13, 2009

    Please disregard my question. I have the unit apart and I have a solution for the problem.

  • Rick Sep 13, 2010

    The Beta 87A is just the cartridge on the top. What is the model number of the handheld transmitter? The model number will be on a sticker inside the battery compartment.



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I assume you have a wireless mic. Disassembly is dependent on the model of the wireless. However, typically, you would pop off the switches and then remove the C ring that is under the cartridge.

Posted on Oct 29, 2010


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1 Answer

Input sources change by itself

All sets with exterior controls, volume, on/off you name it behind each plastic button is a tiny switch---a push switch that when released stops.

Bad ones develop not from age but poor quality,,,,that is a momentary switch, as long as held it should function and when released stop.

Be thankful it is not the sound UP as I have seen that, Menu, you name it.

Now to the proof and the solution, Someone has to gain access to that switch under that plastic button and remove it from the small circuit board it is soldered into---2 to four solder connections and remove the switch.

A ten year old with a soldering iron can do it.

With it removed power set back and see, if problem gone you have a few choices (really no choice if it was me) order and replace the entire board with all the buttons affected or DO NOT PUT THE BAD SWITCH BACK AND just use the set with the remote.

For the technical minded first the reason a remote will not stop this is buttons on the set have priority over the remote functions and YES you can test the bad switch and find it that way---I have seen ones not being pressed that read as low as 3 thousand ohms or less and that is bad=====there should be no reading across the two pins that are for that switch itself.

Let me know if you have questions, PS none of them sell the individual parts you have to buy the same poor quality board with another set of switches on it.

Dec 14, 2012 | Samsung LN40B530 40 in. LCD HDTV

1 Answer

Westinghouse range hood wrf900cs light blew, light globes replaced but lights still not working

I had the same problem. An audible pop and the lights stopped. Fans still works, light bulb filaments appear intact.
My problem was that a short piece of the copper on the printed circuit board, inside the switch housing, had vaporized as if it were a fuse. I soldered a bridge of copper wire across the small 5mm gap and all was working again.
Access the switch compartment by removing the filters, undo a couple of retaining screws to remove switch unit.
Make sure the electricity to the unit is Off/unplugged before proceeding!!!
Switch unit cover has 4 screws holding it on. Once inside the unit, trace the wire (mine was grey colour) from the light switch to the small printed circuit board. The copper printed circuit link to the connector had sign of burning, just gooone!
Solder a bridge of copper wire across the gap and reassemble switch unit to test.
....send beer donations to me in qld...cheers!!!

Jun 29, 2012 | Kitchen Ranges

1 Answer

How can I eliminate the click from the Mad Catz Wooden Fender Stratocaster controller?

This is a pretty easy fix, if you have basic soldering skills. Total time is about 30 minutes.

Tools & Materials Required
  • Pencil soldering iron
  • Small phillips screwdriver (size PH1 works well)
  • 2x CH310-ND switches from Digi-Key ($1.49 ea.)
  • (Optional) Fine wire solder
  • (Optional) 2-3" zip-tie

Step 1: Remove the six screws holding on the rectangular back cover, and cut the small zip-tie holding the cables together.


Step 2: Remove the screws from the front white cover and gently pull the cover away from the guitar body. You will need to work the ribbon cables through the small opening to the back cavity. You should end up with enough cable free to flip the front cover over.


Step 3: Remove the four screws holding down the strum switch circuit board and flip the board over. You should see two blue-top switches that look very similar to the CH310-ND switches. Note the Up/Down labels on the back of the circuit board. You can put either switch into either socket, but you must install the circuit board in the correct orientation when you are done!


Step 4: Apply your soldering iron to the two connection pins on the back of the circuit board until the solder liquefies. Quickly move to the other pin and repeat. Once both have liquefied once, you can move back and forth for just a second or two on each pin and slowly work the switch out of the circuit board. There will be plenty of solder left in the pin holes to connect the new switch. Optionally, you can use a solder remover to completely remove the solder from the pin area, then apply new solder with the new switch.

After the old switch is removed, align the new switch and insert the pins into the connection holes (they will not go all the way through). Heat up the solder that was left behind, again alternating between pins, and gently push the switch all the way into its mounted position. Make sure it is resting flat on the circuit board (there will be a small gap between the bottom of the switch and the circuit board, but the switch should be completely level; compare with other switch).

Step 5: Repeat Step 4 for other switch.


Step 6: Reinstall circuit board in correct orientation. Push ribbon cables back through hole and reinstall front cover. Optionally re-zip-tie ribbon cables, flatten them into the rear compartment, and reinstall rear cover.

Step 7: Rock on in silence!

Jun 26, 2012 | Mad Catz Rock Band Wireless Fender Wooden...

2 Answers

How do i take a shure ur2 apart to replace the switch?

There is a bezel around the switch. You'll need to remove the bezel and then the switch will fall off in your hand. At that point, you can remove the dome cover that covers the antenna. If you need to access the circuit boards, you'll need to remove the C-clip at the top of the transmitter and slide the boards out the top.

May 15, 2010 | Shure U2 / 58 with SM-58 Professional...

1 Answer

Hi i have a 2003 x5 and three buttons on my stereo have stopped working the ones nearest the stearing wheel was told i need new stereo do i?

not unless you find someone willing to work on it that really knows what they are doing.
if you remove the deck,and take off the front panel,there is a printed circuit board with some 4 pin switches,surface mount on that board.
if you replace the switches it will work fine.

Jan 13, 2010 | BMW 02+ 3 5 X5 M3 Series Car Radio Wiring...

2 Answers

On off switch won't stay depressed on AEG dishwasher

Took unit apart and when I put it back it worked again. For how long who knows.

Access to the switch is difficult but by removing the printed circuit board, it seemed to allow the switch to work.

Dec 27, 2009 | AEG 24 in. Favorit 40850 Free-standing...

2 Answers


You will need to remove the front control panel assembly (2 screws and 1 ribbon cable) with copier opened like removing a paper misfeed (or replacing toner unit). Next, you will need to separate circuit board from control panel in order to gain access to the switch under the green print button. Sometimes, you can use electrical contact cleaner (tuner cleaner) to spray into the switch itself, pressing the switch numerous times to evaporate the solution from inside contacts of said switch. Now use a multimeter to check for continuity while depressing the switch and releasing. If cleaning the switch fails, either the switch will need to be replaced or the control circuit board will need to be replaced...replacing the switch isn't difficult, if you know how to solder. Reassembly is reverse of disassembly.

Nov 24, 2009 | Canon PC-920 Black and White Copier

1 Answer

FI error message from both drawers. We had a

F1 indicates flood fault. There is no reset, machine thinks it has flooded. If machine was running OK until electrical storm, then it could have shorted the mains filter control board (DD603 models-this mains filter board also acts as flood switch), although this is unlikely to have shorted. More common is dishwasher has had a leak causing F1 fault, or corrosion on mains filter board . Open bottom drawer and shine torch underneath to see if there is any water in the base of the cabinet- if yes, machine has leaked and activated flood switch. If not, flood switch board may be faulty.
Unfortunately, access to this flood switch control is permitted only by removal of the bottom drawer- recommend calling technician unless very keen!! If keen, read on!!
-To remove drawer- there is a tag at the bottom front on each side of drawer when you open it -just below the round plastic plug. You need to push this tag in and slide backwards on each side, then drawer will lift out-Careful as hoses and wiring still attached, but long enough to allow access. Mains filter control board is located under plastic cover at left rear- press tag on plastic cover and slide to the right- you will now see small electronic board. This is the mains filter board that doubles as the flood switch. It is held in place by 1 screw- you need to remove wires from board before removing it). Check circuit board for corrosion or evidence of short circuit- if so, replace circuit board.
Good luck, but advise seeking professional help unless you very confident!!

Aug 10, 2009 | Fisher and Paykel Dishwashers

1 Answer

Kodak easy share printer dock series 3 -printer wont work.

The thermal print head mechanism is probably jammed (It is the only large heavy metal piece inside the unit). To check, unplug all cords, remove two screws on back of unit, and then carefully lift top off unit. Unplug two ribbon cables that connect the top to the circuit board inside the unit (pull straight out on the circuit board end of the cables). You will see a metal shaft running across the width of the unit, approximately in the center front to back. This shaft drives the print head via a plastic lever on one end and a plastic sector gear on the other end. The sector gear is hidden under the circuit board. Depending on if the teeth of the sector gear are engaged, you should be able to rotate the shaft a fraction of a turn (1/8 to 1/4). If you need access to the sector gear, remove the circuit board by unplugging two more ribbon cables from the circuit board, and 3 screws holding the circuit board to the metal frame. Lift the circuit board and fan/fan-holder straight up as one piece, being careful not to stress the fan wires. Make sure the round metal bosses on the sides of the print head frame are under the plastic lever and sector gear. If this is O.K., check for freedom of gear movement by turning the large gear near the stepper motor in the rear corner of the unit. It should turn easily by pushing the teeth with a small screwdriver. The print head frame should move when the gear is turned.

Mar 15, 2009 | Kodak Cameras

3 Answers

LexMark printer X3470 malfunction

A White Clip On The Rear Has Fallen Off...
It Pushes A Micro Switch On The PCB (Printed Circuit Board)...
Poke Your Finger In The Middle Hole At The Rear Of The Grey Tray While You Have The Lid Open...
Feel The Switch And Press It... (Tiny Button)
You Will See I Am Right...
Try To Locate The Piece That Has Fallen Off...
Glue It Back On Or Order Spare Part...
Or Bin The Printer (Lexmark Is Useless) (Buy Epson)
I Hope This Helps!
Lance Smart
(Currently Trying To Resolve The Same Issue)

Nov 29, 2007 | Lexmark Office Equipment & Supplies

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