Baofeng UV-5RA+ complete teardown, volume repair and LCD display trouble

Hand/Home made
Do it yourself
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You won't be disappointed

[@wileytraylor5404]

Thank you very much for the video. I learned a lot about what is inside the radio. I have a Baofeng BF-F9V2+ that does not transmit on the 144-148 MHz range. I was thinking there might be two RF output transistors, one for VHF and one for UHF, but your video showed only one transistor. So now I must look for another cause.

[@wg99er]

The volume knob is a tool to use a wrench to remove the SMA antenna nut so you can take the radio apart for painting, cleaning, or repairs.

[@solrikioo]

Thanks for the video. That lcd screen was pure pain to fix. But sorted it out. Thanks again.

[@bobflyman]

Thanks for the video. The tip fell off the end of a 3.5 mm jack I plugged in and so I took out the board and with a long needle pushed the broken tip out. Put it back together and then the screen was not working properly, missing segments. It took me two hours to get the screen working again correctly! The led snapped off, but I didn't resolder. And twice the speaker wires, but I did resolder those! Tricky job and only £20 for a new radio, but good to fix it!

[@Racov]

Hey Bob,
It's not the price itself, but the manly feeling and pride to fix it yourself, isn't it :) ?

[@bobflyman]

@@Racov exactly! It's working again. I like to repair things. I never saw the hot tip of a jack plug come off before. It was very difficult to get it out of the socket. A very very thin needle with a bend and I got it out!

[@deejaysanoj]

one of my radio need to replace its speaker this may lil help tutorial's best way to disassemble

[@76mmM4A1HVSS]

Watching you suffer for your mistakes was pure therapy.

[@Racov]

😂

[@eugengrzondziel1706]

Thank You! There are millions of Baofengs with very poor quality of potentiometers. For 99,9% it is the end of its life.

Hey man, thanks for the video, very useful. Would you happen to know what is the preset R value of the trim potentiometer that you show at 4:30 ? And what it calibrates in the circuit ? Thanks

[@Racov]

Hey Grégoire,
I have no idea, sorry.

@@Racov hey no worries it was a long shot

[@viktornoev8523]

Heloo j have baofeng Uvb2lus listenig but the not speak noubady wath the problem

[@djb0110]

I have one having the same problem.

[@kuyavenzinfovlog]

good job and thank you
new follower here

[@maqpeezgofishvlog8431]

What u did to succeed that 5th attempt to fix the lcd? Can u explain here. Please.

[@Racov]

Hey Maqpeez. It’s nothing magic or secret. It takes a lot of patience and precision. Plus, I cleaned the rubber graphite conductor and the LCD contacts with isopropyl alcohol. It always help.

[@maqpeezgofishvlog8431]

@@Racov oh. I get it. Thanks buddy. About to tear down mine. Worried might be facing the same trouble as u did.

[@eronmedeiros8112]

Esse transistor é o de potencia de saída ?

[@Racov]

Eu creo que isto é todo

[@viktornoev8523]

have a radio station baofeng I have a problem two meters is fine at a greater distance I hear a hundred words but when I speak I do not hear what the problem

[@Racov]

Hey Viktor.
I'm not sure I understand.
When you transmit, no-one seem to hear you?
When you press PTT, the radio indicates the transmission (red light ON) ? If not, then the PTT switch might be defective. If yes, then it might be the power transistor faut (that's bad).
The antenna seems to be OK, since you have good reception.

[@viktornoev8523]

@@Racov so the red light indicator lights up on me but does not give a signal to other colleagues at a great distance we listen but they do not hear me and I listen to them I changed and another antenna is the same again

[@Racov]

It could also be the microphone. Can someone tell you if their reception opens (SQL open) but they can't hear your voice? Can you try using the handsfree headset of the radio, see if this microphone works.
If this doesn't work, then the power transistor is burnt, and that's very bad

[@klimm01]

@@viktornoev8523 I had the same problem. Change the antenna. I opened mine and find a capacitor broken. As it was the series signal path, of course was only able to hear it from really small distance.

[@eronmedeiros8112]

Muito bom amigo, você usou spray limpa contato ?

[@Racov]

Yes sir

[@eronmedeiros8112]

@@Racov posso usar WD40 ?

[@Racov]

@@eronmedeiros8112Hello Eron.
I am not sure. Alcohol isopropyl is the best solution.

[@eronmedeiros8112]

@@Racov obrigado

[@eronmedeiros8112]

@@Racov Thank you

[@the1spyderryder]

Not paying attention the LCD HAS TO GO BACK EXACTLY WHERE it came from.

[@HardDiscount]

ce vorbesti frate, eu nu am reusit sa desfac suruburile alea care separa placa de caramida aia de metal, mi sau opturat, sunt facute din mazac cacat, am luat si teapa pe olx de am luat o statie sh care avea volumul slabb. Asta e, la gunoi cu el.

[@distiking]

Much easier to buy a new one.