PART 2 is here: kzbin.info/www/bejne/q2jWh3qkp8tjhpI
@leocelente6 ай бұрын
It seems very logical to me, it was having gas issues; you opened it up; the gas was released; no more gas to fart out
@Elnufo6 ай бұрын
If you run the audio through a fart decoding algorythm, it says "im trapped in a factory, send help!".
@zoenagy94586 ай бұрын
Black Mirror?
@joekenorer5 ай бұрын
@@zoenagy9458 Original Ghost in the Shell Manga.
@springpan6 ай бұрын
I believe you have a failing Li-Po battery pack! My friend gave me the same unit to repair, and it also had distorted audio in the lowest bass notes. Loud, bassy music demands the most instantaneous current from the battery. On the power up "jingle", that distorted envelope you see on the captured waveform is a very low frequency "bump" for JBL to show off the impressive bass from this speaker. Lower levels, or high frequency content may not reveal the problem. Suggest: 1. Play loud bass music through the speaker and see if it distorts. Don't use speech. 2. If there is distortion, bypass the battery with a high power bench supply to see if the problem vanishes. 3. If so, replace the battery BTW, there is a service manual available for this unit on the web (unless it was taken down now). Like your channel, hope this helps!
@EEVblog6 ай бұрын
Doesn't explain why it's gone on the bench, yet was so consistent before I took it apart.
@SeanBZA6 ай бұрын
@@EEVblog Probably a battery connector with oxide formed on the contact area. Undoing it wiped the corrosion off, and made good contact again.
@lab_rabbit6 ай бұрын
@@EEVblog Could the lack of the speaker enclosure be causing them to draw less power? edit: nevermind- just saw your update on EEVblog2 =)
@EEVblog6 ай бұрын
@@SeanBZA Yeah, that's my leading working assumption, as so many people are reporting this now. But it hasn't failed once since it came apart, so it's the battery ESR.
@SeanBZA6 ай бұрын
@@EEVblog Or as combination of the increasing ESR of the on board capacitors and battery ESR, with the poor contact making a RC filter that drops voltage on start up. Would probably benefit from checking ESR of the input capacitors on the board, at least, or simply chucking a bigger one there as well. After all 5 years is prime candidate for ChongX capacitors reaching EOL, and then slowly failing when cold, with the heating of desoldering temporarily fixing them.
@kjlovescoffee6 ай бұрын
Many moons ago, when I was working doing on-site IT support, we used to get computers misbehaving in strange ways that make no sense. Early Pentium-II era. We'd pick it up from the customer, drive back to the workshop, turn it on, and it would work perfectly. Take it back to the customer - expecting it to misbehave again - but no, works perfectly. The suspicion was microscopic solder cracks, and exposing it to a bit of rough and tumble over poor roads sorted things out. We eventually figured out we can just shut down the PC, pick up the case an inch, drop it, turn it back on, and all is good.
@BackForwardPunch6 ай бұрын
probably needed a reflow from cold solder joints? sounds like they were not well produced pcs
@EEVblog6 ай бұрын
Been there, done that, got the t-shirt.
@nameredacted12426 ай бұрын
@@EEVblog Well said!!!
@wdavem5 ай бұрын
Tin whiskers?
@Lucien865 ай бұрын
In the old CRT days one of the secret masters tips was to give it a thump. Amazing how often that worked.. Was guessed as dry solder joints or oxide on connectors or maybe even knocking off static charge.
@jasonmushersee6 ай бұрын
I work in plastic injection mold you can see the parting line so each side of the mold has a profile each mold half is bolted to the press swash plates when those come together 800*f resin is injected resin looks like polypropylene 5150
@RGSneaker6 ай бұрын
So if the signal to the speaker was fine, and what the mic picked up was distorted, my suspicion is something mechanical between the speaker/driver membrane and out through the cabinet. Something loose that shouldn't be loose, or something jammed that should be free - perhaps
@EEVblog6 ай бұрын
Yeah, but that doesn't explain why it was only on that particular envelope consistently.
@Audio_Simon6 ай бұрын
It sounds like electrical clipping. All I can say is one of the VERY common faults is the SMD capacitors on the output of class D amps. They see significant voltage spikes and go bad. They don't always measure short or obviously bad on a simple low freq. test. Just rip them off to check. Who cares about emi? The rail is probably dropping due to oscillation sucking juice.
@joseignaciobaluk37416 ай бұрын
I have a flip 4 that makes weird like you said "fart" noises when I turn the volume up. The battery is busted and i used it with a power bank that I ziptied to the speaker and a USB cable. I wanted to buy a new battery but they are complicated to swap because they have some weird sticky tape on the underside of the battery and taking out the old one is quite destructive. Unless you don't mind pushing it too hard and perforating it (I would rather not). I always assumed that since the battery is busted, at some point when the IC wants to draw current from the battery for the amplifier, the internal resistance of the battery makes it drop voltage and that's what causes the distortion. The noises become worse when the speakers are reproducing bass (thus taking more current to move the coil further for longer) and when the volume is higher, also it seems to work better or worse some days, which I assume has something to do with the ambient temperature and the battery. The other day I was bored and wanted to see how it looked like with the scope, and when the distortion appears the battery drops to 2 or so volts. But I didn't try to fix it or anything, mine is too busted and the plastic has broken down.. etc. those speakers are built very good but they're not meant to last 8 years, specially the battery. They are not built with replacing the battery in mind, either.
@Rainbow__cookie5 ай бұрын
that explains my charge 4 i also had a charge 3 that needed a new battery both found in dumster room also a flip 3 gave that one to my brother it seems like it has a ok battery
@Interxoxo5 ай бұрын
this issue can happen under two factors. the first one is the dead battery but i think that is not the case because this would made two of the speakers crackle at once so I think the second one is what happened here. so the second factor is broken wire which connects the driver voice coil to its terminals, i suppose when on 7:37 they rammed each other this wire maybe under this force pushed itself back into place, but that is just my theory why it repaired itself
@vandaldanny6 ай бұрын
The strange noises will be a wire inside vibrating. I’ve rebuild a few of these all with the same common problem. Just simply rebuilding this nearly always cures the wired noises these speakers suffer with. Swelled worn out batteries in these speakers also cause strange distortion noises at high volume.
@sonic2000gr6 ай бұрын
Well, I ended up reading about Harold Holt. Fascinating story!
@jackphilp70576 ай бұрын
I can confirm with a similar speaker and a nearly dead battery like other commenters have noted, the "farting" noise is most likely from voltage dropouts. My battery is properly cooked and if I try to use it without a big enough power brick it will make the same noise.
@EEVblog6 ай бұрын
Why did it stop when powered on the bench after the teardown?
@buckstarchaser23765 ай бұрын
See, what happened was... The fart sound was caused by damage incurred by the speakers crashing after you took it apart. Then it got sent back in time because of magnets or something. Now you're caught in a karmic time loop where you have to use the broken things until you get sick of the malfunction and break it in the past while not breaking it in the present. Pretty much, you solved the warranty problem.
@thephantom14926 ай бұрын
Dave, probe the battery. Both of mine did the farting, Both are the battery. The "bigger" one I found a replacement, the "smaller" I did not, but it is always plugged so I don't care. Edit: I believe the issue is that one electrode in the lipo crack and can't pass enough current. You touched the battery, so applied mechanical force on it, which may have connected back part of the electrode. My small one (charge2+) work fine for a few minutes then start to fart, then crack, then shutdown. Leave it alone a few minutes, and you can listen back for a while, then it start again. It make me think that the electrode broke and you basically have 2 battery with a "resistor" in between, slowly charging back the "main side".
@EEVblog6 ай бұрын
Maybe it was a bad/correded battery connection and simply unplugging and repluging fixed it?
@reidprichard6 ай бұрын
Wow, the spam is insane.
@CertifiedCommentBotHater6 ай бұрын
Frick the pornographic bots Why hasn't KZbin done anything about them
@EEVblog6 ай бұрын
About 5 of them just vanished within minutes, wasn't me.
@markm00006 ай бұрын
@@CertifiedCommentBotHater KZbin hasn’t gotten sued for it yet. They’re too busy making money.
@chitlitlah6 ай бұрын
@@CertifiedCommentBotHater Name checks out.
@IcecalGamer6 ай бұрын
It's also the "Mechanic syndrome" @Dave. 22:55 When a customer just left the mechanic (all should be good and in order), comes back 30 min later with "it's making a (fart?) noise", the tech takes it for Another test drive and NO noise to be found.
@actontreadway11684 ай бұрын
I have what sounds like blown speakers on mine. The battery seems fine and plays horribly for as many hours as it did when I bought it.
@p.0-npcg.2486 ай бұрын
20:55 "...chasin' fart noises, this is my career." This phrase can be placed on a new Aussie safari uniform! This just shows how easy it is to underestimate the disassembly-reassembly fix when the connector doesn't quite make it metal to metal
@MrMindlink6 ай бұрын
Suggest checking the passive subs, make sure the metal plate isn't separating from the rubber surround.
@SouravTechLabs5 ай бұрын
Could it be that the drivers were jammed, making them sound like a fart at that specific frequency? Perhaps when you accidentally knocked the two speakers together, it resolved the issue? Moreover, since you were playing voice through the speakers, which typically involves low bass, you should consider conducting a sine wave sweep test using an online tone generator or your signal generators to ascertain if the woofers are the source of the problem.
i heard one of these at work. shame the speakers are so close together, the stereo is bad
@scottpelletier13706 ай бұрын
@@echelonrank3927 if it's like the ue boom stick I have, you can get 2 and an app splits left/right.... But yeah for easy sound these are pretty convenient
@danmyers78276 ай бұрын
A regular small ad in the British satirical magazine Private Eye was for a 'remote-controlled fart machine.' With a little modification, that JBL could be a goldmine!🙂
@TheCurtisnixon6 ай бұрын
had nearly the same thing happen to me a month ago. had a 12v 5a power brick, wasn't working. started probing around trying to find the fault, probe a diode in voltmeter, led comes on, brick starts working. not a clue. had been poking at it for a couple weeks, could not find a bad component, pluged into to trace out the power rail, probe diode, bam, lights on, 12v 5a out...so confused...
@markm00006 ай бұрын
It’s alright Dave we still love you, even if you blame the speaker lol
@v8vrooooom6 ай бұрын
'chasing fart noises'😂
@hellhound-si5oz6 ай бұрын
Well we call that power supply sag
@toteu000005 ай бұрын
How lucky of me to see your video after i almost quit wanting to repair mine. Same issue + battery swollen and cracked both the battery cover & the case
@ForestNinjaZero6 ай бұрын
It might help to keep a set of line-level test samples from 20hz to 20khz, for testing clips, distortion, control malfunctions, etc. Damaged voice coils might also cause the clipping/crackling effect. Test the right side at high pressure/amplitude.
@hgbugalou5 ай бұрын
I love when you do repair videos.
@emmanuelhebrew11715 ай бұрын
Have the same speaker, the issue with mine is that when you plug in just the right channel driver the sound plays one seconds and skips the other. While you plug the left channel driver then it just moves in and out without sound. And then just screams loudly when you plug both channels. Any solution?
@maxw72213 ай бұрын
The driver was fixed when the other one crashed on top of it and compressed it. I've got two of these. The first one was cured by replacing the battery that could barely hold a charge. The current one has a driver making a similar sound. I swapped it over to the "good" side and the problem came with it. So, I've tried the unwitting fix here of crashing the good driver's magnet on top of the bad one, and it has had a noticeable change in the sound--unfortunately all bad.
@cURLybOi6 ай бұрын
i have the charge 4 and it is such a versatile beast. not only waterproof but also it's called charge because you can charge other stuff of it. you can take this on a camping weekend and it will play your music and charge your phone
@gennidee5 ай бұрын
Had the same problem with a Flip 3 that had a dead battery. Battery was even puffed up significantly but it sorta worked with a power adapter, making horrible farting noises even at low volumes. I replaced the battery and the fault is gone.
@bentboybbz2 ай бұрын
Maybe the amplifier is designed to use 13v when you put it into bass boost mode or max volume and it has two power modes that it goes through upon startup...as for it starting to work correctly... it's very common... you have taken it apart and moved all connectors around... wiggled every component.... so any bad connection is jo longer etc....thats just how it goes my brother 😅
@eric673615 ай бұрын
Perhaps a pressure differential existed inside the hermetically sealed vessel that caused either the speaker or the endcap excursion to bottom-out, causing the sharp audible "clicks". The regularity of the "clicks" suggests it matches the frequency of that bass "note", or a harmonic of it? Opening capsule and reassembling equalized the pressure so that offset (pressure bias?) was removed? Just a guess...
@ahmetkipkip6 ай бұрын
I had exactly same issue that later i found out some cabling was touching the driver 🙃
@freescape085 ай бұрын
Had a very similar issue with an intermittent garble (much louder on average though, often a pop) from a Sharkk ²O waterproof speaker, I pulled it apart, found no signs of ingress, ran out of time, boxed it and forgot it. A year later, I was poking around another speaker that I wanted to use as a sub for some cheap computer speakers, and was about to borrow the 3.5mm jack from the Sharkk, when I tested it and found no issues! It sounds perfect again, so I put it together and use it as a dry speaker now. I suspect it was invisible ingress and the habitual cleaning I did was enough.
@MikeB_UK5 ай бұрын
My money would be on something mechanical related that disassembly and/or slamming those speakers together has cured for now. If it comes back you'll have to be a bit more gentle taking it apart to analyse. My guess would be the speaker, but could even be an iffy solder joint somewhere..
@jamesblackwell51415 ай бұрын
Perhaps its a physical problem? May be something loose reacting to a certain range of sound frequency. Also, when you disconnected the cabling and re-installed it to test, you may have corrected the issue. (Who knows how many times the thing has been dropped.)
@harrysmbdgs6 ай бұрын
I wonder if that voltage would increase with volume / power demand?
@yta77777776 ай бұрын
I was thinking the same thing.
@matthewlyonsakadeathtodogs57305 ай бұрын
Interesting detective work. that fart really ran amok when it's cause was discovered. 😆
@TananBaboo5 ай бұрын
“Charge your shoe phone”. Like it 😀
@jasonbrindamour9036 ай бұрын
A friend of mine works for a company that takes these from displays to replace them with newer stuff. I got one of these exact speakers. I used a soldering iron to stop the wheezing noises from where they used long wood screws to secure it to the stand and it sounds great. I use it as a loud speaker on my Uniden scanner. A good bit of Kit as you would say...LOL :)
@knifedude976 ай бұрын
My bet is on a cracked solder joint on the amplifier chip.
@user-th1fs3if6i5 ай бұрын
Maybe Harold went swimming with pair of JBL speakers.
@BrettCooper47026 ай бұрын
Could it be the caps fully discharged and the issue happens when they are not?
@chrisridesbicycles6 ай бұрын
Spontaneous self-healing. We were all there. You can bet it will come back of you screw it back together. 😂
@SjoerdvanGestel5 ай бұрын
I suspect that disconnecting the battery might have something to do with it. Wonder if this also would have gone away if the battery was fully emptied before recharging
@imark77777775 ай бұрын
2:26 not that guy again talking about the solar roadways.. Aaaagain! lol.
@Jonathannew-cp7fj6 ай бұрын
Nice to see I'm not the only one who chases rabbit holes... Sorry I mean fart holes 😂
@u9Nails5 ай бұрын
Wow! Nice "fix". My first thought was some sort of file corruption in that sound. If it is even stored as a file. So, it ended up being a poor connection of some sort I suppose?!
@deathlydarkness5 ай бұрын
I bet it was dropped at some point and caused a voice coil on one of the drivers to go all askew. Your novel method of driver assimilation may have corrected the alignment of the coil.
@markmuir73385 ай бұрын
I suspect it was a mechanical issue - a loose clip or debris in the driver or chamber. If it was something stuck to the driver, maybe that inadvertent percussive maintenance you did of smacking it with the back of the other driver did the trick and ejected the debris. A fix is a fix, even if unintentional or not understood.
@yoeribolderdijk12576 ай бұрын
Watching this with my black JBL charge 3 (battery replaced)
@optroncordian78636 ай бұрын
Some linear regulators require a minimum load to work, otherwise they overvolt the output. I put a resistor for that. Might be the same with some switching regulators ... I thought there might be an issue with a connector. They corrode with time.
@ats891176 ай бұрын
That's a feature. The youngsters love it!
@oskimac5 ай бұрын
i was thinking from the beginning swap the speakers first... to see if the fault was there, probably one speaker coil was stuck or something.
@leosbagoftricks37326 ай бұрын
Just shows-to-go-ya how frustrating and difficult it is to attempt repairs on these modern products- super complex and not designed to be fixed!
@hvxcolors3966 ай бұрын
JBL recently started to design its portable speakers with removable batteries, probably to comply with new EU directives. I'm wondering if they now also adapted their pcb assembly process for repairability (not having those blobs on the pcb for example). Btw, you dont mention it in your video but I guess you take a peek at the service manual. JBL always has instructions for the dismantling process. Great video as always!
@echelonrank39276 ай бұрын
its good to see jbl improving their designs by means of govt mandate, cant wait for them to start placing speakers futrther apart for a better stereo sound also by govt mandate 🤩 how else?
@PablloArruda5 ай бұрын
I've already taken apart things that were broken and reassembled them and bazinga! Everything ok again.
@joekenorer5 ай бұрын
I start to get anxious when Dave goes a while without posting.
@skeleton_craftGaming6 ай бұрын
I think they literally do, I think the only people that make waterproof portable speakers like that is JBL themselves and RCA which is a subsidiary of JBL. Also, that speaker makes the exact same [input feedback] noises as my JBL headphones... They're slightly newer but random fart noises are going to be something I look out for...
@kd10101636 ай бұрын
The 12v mode might be for a higher power mode when plugged in.
@pault65336 ай бұрын
Mechanical resonance. Same reason your car dash rattles after a few years. Take your dash apart and put it back together, it might stop for a while. Unless you add some mitigation dampening, the problem is likely to come back.
@evensgrey5 ай бұрын
Here in Canada, "White Coat Syndrome" is a different, and very specific thing. Here, it refers to how one's blood pressure always reads high when the doctor takes it because of the stress of being at the doctor's office. We have a different references for the symptom not appearing when you have a malfunctioning device examined: We talk about taking your car to the mechanic and it won't make the noise. And if the abnormal noise disappeared, that qualifies as a repair.
@tullgutten6 ай бұрын
I had one with a bad usb input. After opening it up and seeing the junk it was on its way to the devil through my stove chimney. Not a single piece was found left in the ashes of speakers or wiring 😅😂
@simonstergaard6 ай бұрын
you probably just found some kind of fingerprinting, just like when those yellow spots was found on xerox copies to fingerprint which printer they were from...
@julianpiper2406 ай бұрын
22:50 the old singing frog syndrome!
@MrRelevance022 ай бұрын
New one is 40 watts RMS shared with a 10 Watt tweeter
@markdjdeenix68465 ай бұрын
so maybe the right hand speeker has a issue .desolder and swap them rebuild it and see if the fart moves 😭to the left
@frogz5 ай бұрын
i had 1 of these, pretty nice, i had to replace the battery when i got it
@andrew_koala29742 ай бұрын
CORRECTED EDITED TEXT ; Dave is chasing fart noises in this JBL Charge 3 waterproof speaker. ; A tear-down - and power-up on the bench to find the mysterious fart noises. ; Will it be repaired - or will the fault do a Harold Holt ? Part 2: • JBLCharge3Repair-Part2
@MatthewSuffidy6 ай бұрын
I would check the net for mentions of the problem first. After that looking for physical damages inside could be attempted. Also it would be good to try to come up with some ideas on what is causing the problem, like bad caps, ribbon cable oxidation. I saw a problem in a earlier model where a smd transistor had one leg broken at the plastic leaving just a metal line.
@KeritechElectronics6 ай бұрын
Almost too easy to get inside! Suspicious.
@AttilaTheHun3333336 ай бұрын
If you take the driver out of the chamber it deals with different pressures since the passive drivers aren’t there anymore. I bet it’s the driver itself, not electrical.
@steverhenius67346 ай бұрын
You let rhe ‘smoke’ out !
@CanizaM5 ай бұрын
The bluetooth device has connected, uh, successfully.
@sammurphy4506 ай бұрын
i know about these cases theyre molded as two halves and ultrsonicly welded together u can see the seem on the bottom
@MrRelevance022 ай бұрын
Rubber Baby Buggy bumper 😂
@desnick23166 ай бұрын
I would have hooked up the signal generator to the audio input and try low frequency sounds at different volumes to try to reproduce the issue if it is not happening on startup only.
@EEVblog6 ай бұрын
Yeah, could have swept that. Forgot it had an audio input.
@desnick23166 ай бұрын
@@EEVblog There are also free phone apps you can use to generate the signal over bluetooth
@wgeddis6 ай бұрын
Farts in an envelope, whatever next? 😂
@khx735 ай бұрын
7:57 "maybe they SUB those out" ... Ba-dum-tssssss
@oskimac5 ай бұрын
you know what they say about farts. better out than in. you opened it and let all the part vent.. and that fixed it. /s
@borisdg6 ай бұрын
I like Ultimate Ears (Logitech owns them) more than JBL.
@tarasian6665 ай бұрын
Probably the problem was in the speaker and you fixed it accidentally when the magnets collided 😂
@stormchaser3006 ай бұрын
Probably just a dry connection making fart noise.
@nonsuch6 ай бұрын
Had a friend fart into a microphone just to look at the waveform and determine sphincter open/sphincter closed moments. 😂
@EEVblog6 ай бұрын
For science.
@James-wb1iq6 ай бұрын
I've been watching this show for years, and I still can't say rubber baby buggy bumper
@EEVblog6 ай бұрын
Three times quickly.
@jeanious20095 ай бұрын
Probably the speaker has debris in between the voice coil.
@TheTsunamijuan5 ай бұрын
this is why you have to be a big company to make money selling something designed like this. The mold for the core of this product has to be insanely expensive to make. I am guessing at a minimum its a 6 piece mold, probably more parts than that even. With that just being the mold for the core of the product.
@Asdayasman6 ай бұрын
My guess is a crack in the solder of one of those big caps, and you poking at it complaining about the potting has jostled it into a bit of a better connection. Disclaimer: I am an idiot.
@riks72566 ай бұрын
I had a very similar model behaving in a similar way. It was random ferrous stuff magnetized to the speakers. but my bet is your case is a broken cone.(i'm wrong most probably)
@imark77777775 ай бұрын
Speculation off camera you took the cow out of there or was it a pig?
@jasonfournier6 ай бұрын
Might be some weird interference that went away when you moved the wires around.
@julianreverse5 ай бұрын
Mine exploded on my desk two months ago ...
@James_Bowie6 ай бұрын
The fart noises are an optional extra.
@Holycurative96105 ай бұрын
Seems your problem could be a poor battery pack, too many cycles of charge and discharge over a number of years.
@andrew_koala29742 ай бұрын
📖 TPA3116D2 15.W 30.W 50.W Filter-Free Class-D Stereo Amplifier Family With AM --- Features --- • Supports Multiple Output Configurations - 2 50 W Into a BTL Load at 21 V (TPA3116D2) - 2 30 W Into a 8-0 BTL Load at 24 V (TPA311802) - 2 x 15 W Into a 8-0 BTL Load at 15 V (TPA3130D2) • Wide Voltage Range. 4.5 V to 26 V • Efficient Class-D Operation - >90% Power Efficiency Combined With Low Idle Loss Greatly Heat Sink Size - Advanced Modulation Schemes • Multiple Switching Frequencies - AM Avoidance - Master and Slave Synchronization - Up to 1 2.MHz Switching Frequency • Feedback Power •Stage Architecture With High PSRR Reduces PSU Requirements • Programmable Power Limit • Differential and Single-Ended Inputs • Stereo and Mono Mode With Single-Fitter Mono Configuration • Single Power Supply Reduces Count • Integrated Self-Protection Circuits Including Over-voltage - Under-voltage - Over-temperature - DC Detect - Short Circuit With Error Reporting • Thermally Enhanced Packages - DAD (32.Pin HTSSOP Pad up) - DAP (32.Pin HTSSOP Pad Down) • -40℃ to 85℃ Ambient Temperature Range
@gnurgl51576 ай бұрын
I had one, started doing it within 3 weeks of having it. Speakers are trash in it.