#56 - Shure SLX4 wireless microphone receiver repair

This Shure receiver did not power up. The problem was traced to a couple of small surface-mount inductors, which were blown together with a PCB trace. The inductors were replaced, and the trace repaired. The external power supply was tested using an electronic load.

[@TKomoski]

Nice to see you back at the repair bench. Cheers

[@haroldneckles4249]

You're the best, keep make these videos. You're helping a lot of people.

[@feedback-loop]

Thanks. I will. A bit too busy lately, but I will.

[@Corgitronics]

Congratulations on the quick fix!

[@OrbiterElectronics]

Another great video and a good fix there FL. Regards, John

[@abczyx]

Strange issue indeed. Thanks for another excellent video!

[@PelDaddy]

Another nice repair. Thanks for sharing these.

[@RupertHandford]

Great video as always - thanks for sharing 👍

[@gordonwedman3179]

Thanks for posting this. Reminds one to always look for obvious damage. Would have liked to see you solder in the replacements. Looked pretty cramped layout to work in.

[@dpyles9396]

I just found your channel yesterday and have been binge watching since. Good stuff! Thank you! What part of the world are you in?

[@feedback-loop]

Thanks. I am in California.

[@Pyridox]

Good repair, thanks.

[@Darryl603]

Great video thanks for sharing

[@SzymekCRX]

We love that sort of stuff :) !

[@radioroger1683]

I have a ULXS4 receiver and cannot figure out how the plastic covers come off, I figure it's latches that need to be pressed on with a small screwdriver until they release

[@netdudeuk]

Good video thanks

[@stevec5000]

I found a couple of these at Goodwill, bought one but don't know of any use for it. The channel doesn't seem to be tunable and i don't have anything that transmits on the channel that it uses. Any ideas?

[@johnguel9023]

How would you fix a receiver that doesnt show the digits in the LED screen? The receiver works and the screen is green but no numbers show at all.

[@orvilleainsworthcoley3432]

Good day, excellent videos on repair. I have a Shure ULXP4 reciever that connects with the ULX1 bodypack, but does not connect with the original ULX2 handheld transmitter Microphone. How do I solve this issue? Many thanks in advance

[@ajibsanawi8023]

Hi sir. I got 1 unit for SHURE SLX4 but the output sound was sound like distort or sound very strange. I have tried to troubleshoot n check on the board but cannot find any components burnt or spoiled. please advice if you have any idea. Thank you in advance.

[@nohemydelahoya5499]

I have a shure microphone wireless slx4 every turns on receptor everything, except there's no sound coming out from the microphone, any idea what it could be??

[@cj-de2eb]

Thanks! We have a few of these, and I've wondered what they were like inside. Do you think it would be possible for a competent diyer to re tune one of these to a different band? E.g. from G4 to J3? Shure will do it but of course it'll cost you. Or would it be too complicated, need firmware, take a bunch of rf test gear, ...?

[@feedback-loop]

I don't know. Most probably it will take a firmware change, careful tuning of some filters using some advanced gear and knowledge of the adjustment process.

[@cj-de2eb]

That's what I was thinking. Would be a fun project to reverse engineer and figure it out, except maybe for the firmware (unless that ended up being either really simple or not necessary). But from a practical point of view, not likely to be worth the effort vs. sending it in. Still a well-engineered product though!

[@andrewcappello6964]

I need to replace one of the bulkhead BNC connectors on the back but I am having trouble removing the top lid. It is a friends and I dont want to force it. Is there any tips or tricks you have for removing that cover? all screws on the top, sides and bottom and have been removed but it looks like it is attached to the faceplate somehow but I cannot see where.

[@marcisax]

Did u find solution how to open it ? can you help me to do the same ?

[@andrewcappello6964]

I have not unfortunately but if I find something I will let you know.

[@marcisax]

@@andrewcappello6964 I found a picture, that helped me to open this top cover. Was a bit hard, and also I help my self with a screwdriver. send me your mail. so I can forward the picture. Best Regards!

[@marcisax]

thsi also can help you - Press down on the front center of the top cover of the receiver so that the flange lock releases from the front panel. This allows the cover to slide backward as shown.

[@ChipGuy]

8:55 I think I know what happend: Somebody connected a different power supply and the unit to something that did have not 0V on the ground, so there was a current flow from the power input GND to some other GND. Like when you don't have your scope on an insulation transformer and connect the ground to the positive input of a switching PSU capacitor.

[@feedback-loop]

Perhaps, who knows.

[@ramonaguilar608]

Hi, Do you know if you can change the frequency range of a Shure SLX system, so that it works in another band? Regards

[@radioroger1683]

I think its fixed, I have G3 Receivers (ULXS4) and G50 mics QLXD in the same 470-530 frequency range, They are not grouped the same, I have tried every combination on Group and Channel and the ULXS4 will not receive them Trying to save the cost of buying new QLXD receivers , It would have been nice if you could change it internally, But then shure would not make any money

[@rapsod1911]

How much is shipping cost charged by didikey for you?

[@gegegy4106]

I was watching your video to know how to take off the top cover, but you don't show it :) Can you tell me please? I have been trying for 4-5 days, the side 4 screws are away, buit still it is impossible to move the top cover ... can you give me please some tip? thanks

[@MusicandTractors]

Gege Gy I’m having the same problem. Have you figured it out?

[@cherbert]

you have to carefully lift tabs on the faceplate

[@shreerangenterprises3661]

hi sir , how can i solve problem for short range in ulx4 microphone.

[@radioroger1683]

I use external home made 1/2 wave Di-pole antennas made from copper pipe with LMR240 coax spread 50 feet apart to extend the range of mine

[@hardikmodi584]

How to reset slx4 receiver??

[@Techn0man1ac]

Уже акцента не слышу. Много времени понадобилось чтобы более менее разговорным английским говорить?