Re: [SlimDevices: Radio] no sound when using battery
M8G wrote: > opened the unit yesterday. Measured the voltage coming from adapter > power to speaker and it was all fine. > > When I did the same from battery power to speaker, it was totally no > voltage at all. I assume its some blocking between connectors. > > PCB unit doesn't look to have any damage or sign of defect components. > > Must be hardware issue or do we have anything else in the loop? > > U where talking about switch, do u know where it can be located on the > PCB? can it be forced by any config file or manipulated by voltage > current? > I did inserted the adapter plug and run it on the battery too, to secure > the switch problem. > > Ok, my guess that there might be a switch on the line power receptacle (my last post) looks like a "no". There are only two wires coming from your "power in" If there was a switch on the socket, there would be an additional wire. when you say you are measuring voltage, remember that it's AC, unless it has a DC bias, I don't know the design. I would measure with an o-scope, but not everyone has those laying around. I also don't know where the audio amplifier is, on that PCB, or back in by the speaker. I would guess that the amplifier is on that PCB because the connector to the speakers is only 4 pin. The four pin I would guess to be L/R +/-. I say this because the output of that connector would be either low level (preamp level) or speaker level. If you had an old speaker (if its high level) or set of headphones/earbuds (if it's low level), you could touch wires to 2 pins at a time and see if sound comes out. Look for a +/- marking on the pcb. Be careful not to short any two pins, use a needle/pin (or similar) as probes The "speaker" connector, does that lead to another PCB in the case adjacent to the speaker? I would guess it could be just could be just a passive crossover (woofer and tweeter) and maybe a mixer (combine L and R). But to your original point. If you have both line and the battery connected, the radio plays fine. If the line power is disconnected, the speaker does not play but the headphone does. Since both line and battery power come into that pcb, and the speaker signal comes out from it, it would indicate that it's on that board. I have a radio in storage that I could take apart (I'm curious too) but I don't know if I can get to it today. Did you think to contact Joe to see if he had any ideas? Jim Redrum's Profile: http://forums.slimdevices.com/member.php?userid=33806 View this thread: http://forums.slimdevices.com/showthread.php?t=115497 ___ Radio mailing list Radio@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/radio
Re: [SlimDevices: Radio] no sound when using battery
opened the unit yesterday. Measured the voltage coming from adapter power to speaker and it was all fine. When I did the same from battery power to speaker, it was totally no voltage at all. I assume its some blocking between connectors. PCB unit doesn't look to have any damage or sign of defect components. Must be hardware issue or do we have anything else in the loop? U where talking about switch, do u know where it can be located on the PCB? can it be forced by any config file or manipulated by voltage current? I did inserted the adapter plug and run it on the battery too, to secure the switch problem. 3645736458 +---+ |Filename: pwoer.jpg| |Download: http://forums.slimdevices.com/attachment.php?attachmentid=36458| +---+ M8G's Profile: http://forums.slimdevices.com/member.php?userid=72324 View this thread: http://forums.slimdevices.com/showthread.php?t=115497 ___ Radio mailing list Radio@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/radio
Re: [SlimDevices: Radio] no sound when using battery
I had one other thought, just something to try - we know that the headphone jack has a switch that detects the presence of a headphone plug. Plug in -> turn speaker off/switch audio to headphone. If this doesn't work, cleaning or repairing might solve this switching. But in M8G's case, this switching works while on line power, but does not work on battery power, so it can't be just this switch. What if there is a similar switch on the power plug? What if there is a switch that senses the lines plug that causes a different behavior, which might explain what is being observed? M8G - maybe try having the radio line power plugged in, but unplugged from the wall. This might (should?) cause the radio to play on battery power but thinking it's on line power? My thinking is, if it plays through the speaker, but then you unplug the disconnected line plug from the radio and it stops playing out the speakers, maybe it's a switch on this plug. I know it's a real stretch, but maybe this might tell you something. If it seems hopeful, maybe clean the power receptacle with deoxit or similar. Jim Redrum's Profile: http://forums.slimdevices.com/member.php?userid=33806 View this thread: http://forums.slimdevices.com/showthread.php?t=115497 ___ Radio mailing list Radio@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/radio
Re: [SlimDevices: Radio] no sound when using battery
@Kev - accommodating the pull tab, that makes sense. Instead of modifying the case mold and inside electronics, UE just decided to modify/make a new battery door mold and add connectors and wires. Must have been cheaper overall. To the original issue - I grabbed a radio with a battery and tried it next to one that is on line power. With both (while playing) as you just start to inset the headphone plug (1/4 of the way in), the sound cuts out. That tells me they must be using a switched stereo phone jack: 36445 If the switch was dirty/stuck/defective you would expect it to behave the same way for both speaker and headphone, right? One thing I thought of, is the headphone output is stereo, and the speaker output (assume) is mono, so the stereo signal must be present at the headphone but mixed to mono on it's way to the speaker. Not sure that contributes anything. @M8G - if you were to open the case up, and you didn't mind, I am sure you could bypass the headphone jack (either make it so headphones do not shut off speakers, or headphones just don't work. Too bad we don't have schematics. I know that @JoeMuc2009 fixes boom's, maybe you could send him a PM to see if he has any thoughts Jim +---+ |Filename: headphone.jpg| |Download: http://forums.slimdevices.com/attachment.php?attachmentid=36445| +---+ Redrum's Profile: http://forums.slimdevices.com/member.php?userid=33806 View this thread: http://forums.slimdevices.com/showthread.php?t=115497 ___ Radio mailing list Radio@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/radio
Re: [SlimDevices: Radio] no sound when using battery
KeBul wrote: > It's because UE Smart Radios were shipped with a battery - the > additional circuitry allows for the battery to be "disconnected" in > storage/transit prior to first use by a pull out plastic tab that sits > between contacts in the battery door. (Credit Michael H who pointed this > out in another thread) > > SB Radios were not shipped with batteries so didn't have this. > > Kev > > Edit: Found it in the manual: > > 36436 > > Edit2: > > Re: your actual problem - I while back purchased a secondhand UE Smart > Radio that had no sound from the speakers, but the headphone socket did > work. I cannot remember if that was on mains or battery, it could have > been either (or more likely both). I took it back and the seller > replaced it with another unit for me, but then they contacted me a > couple of days later asking if I wanted to buy the now working original > one... Apparently, it was dirty contacts on the headphone socket, their > repair man sprayed switch cleaner into the socket and worked a headphone > plug in and out of the socket and the speakers started working when the > headphones socket wasn't being used. > Logic tells me that mains power or battery power shouldn't affect this > as a fault, but possibly worth a try - at the most it will cost you a > small can of switch cleaner if you haven't got any. I have tried both SB and UE versions with the same issue. So I guess it somewhere a hardware problem. If it's the headphone socket I dont know but I have sprayed it with no positive result yet. Its quite annoying and I am considering opening up the unit and seeing if I can force the unit to "speak"er up. M8G's Profile: http://forums.slimdevices.com/member.php?userid=72324 View this thread: http://forums.slimdevices.com/showthread.php?t=115497 ___ Radio mailing list Radio@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/radio
Re: [SlimDevices: Radio] no sound when using battery
M8G wrote: > > i dont know if someone can explain why i have by-pass connection to my > unit? > It's because UE Smart Radios were shipped with a battery - the additional circuitry allows for the battery to be "disconnected" in storage/transit prior to first use by a pull out plastic tab that sits between contacts in the battery door. Kev KeBul's Profile: http://forums.slimdevices.com/member.php?userid=32883 View this thread: http://forums.slimdevices.com/showthread.php?t=115497 ___ Radio mailing list Radio@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/radio
Re: [SlimDevices: Radio] no sound when using battery
M8G wrote: > yes its correct, no sound on battery. > > I have checked all ur suggested links and tried provker and Alsa amp > with no result when using the battery. > Have also tried to update to 7.8.0 version. Didn't manage to make a > firmware update. Do u have better guide? and which files should be used > for 7.3.3 version? > > i dont know if someone can explain why i have by-pass connection to my > unit? I have connected the battery directly and doesn't make any > differences if u by-pass connect or not. > I don't have a UE radio, I did have one that I set up for a friend, so I had minimal exposure to it. Not sure of their firmware versioning is different (it must be, right)? I am running 7.7.3 r16676. I had suggested trying to change your UE radio to a sb (you can change back easily). I have never seen what you refer to as "bypass", so I went and looked: 36434 The sb radios that I have just have a blank door. You plug in a battery and it works disconnected from power. plug in power (battery present or not) and it works off power. I wonder what it's purpose is? I know that installing the battery and then pluging in is not "easy", perhaps its a user friendly thing? I am sorry I can't help more. Why not try changing it to a sb radio? Its somewhere in settings->advanced... Jim +---+ |Filename: ue.png | |Download: http://forums.slimdevices.com/attachment.php?attachmentid=36434| +---+ Redrum's Profile: http://forums.slimdevices.com/member.php?userid=33806 View this thread: http://forums.slimdevices.com/showthread.php?t=115497 ___ Radio mailing list Radio@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/radio
Re: [SlimDevices: Radio] no sound when using battery
Redrum wrote: > sorry to hear..just to clarify (and perhaps attract someone with another > idea): > > YOUR UE RADIO WORKS FINE ON ADAPTOR. BUT ON BATTERY THERE IS NO SOUND > FROM THE SPEAKER, BUT THERE IS SOUND THROUGH THE HEADPHONE JACK, > CORRECT? > > Again, I don't know the design of the radio, no schematics are > available, but anything I might suspect is eliminated because everything > works while on line power (e.g. faulty headphone jack switch) > > So, maybe someone else has an idea, but until then, here's a couple > things I might try... > > 1) If you are running as a UE radio, try switching to a sb radio > (firmware) - it's in settings->advanced radio available>.. > 2) I assume you did a factory reset. > 3) There is community software for the radio and touch that you could > try. It all started as a "bass missing" problem > https://forums.slimdevices.com/showthread.php?104141-Bass-amp-problem > and then developed into new firmware > https://forums.slimdevices.com/showthread.php?111663-Community-Build-Radio-Firmware&highlight=community > 4) In the two threads above, maybe you can look through them and see if > there are any similarities. If you see something, maybe quote reply in > that thread with your issue. > > I am really sorry I couldn't help more, I'm just a happy sb user, not > one of the developers. Maybe we can attract their attention. > > Jim yes its correct, no sound on battery. I have checked all ur suggested links and tried provker and Alsa amp with no result when using the battery. Have also tried to update to 7.8.0 version. Didn't manage to make a firmware update. Do u have better guide? and which files should be used for 7.3.3 version? i dont know if someone can explain why i have by-pass connection to my unit? I have connected the battery directly and doesn't make any differences if u by-pass connect or not. 36433 +---+ |Filename: IMG_4172.jpg | |Download: http://forums.slimdevices.com/attachment.php?attachmentid=36433| +---+ M8G's Profile: http://forums.slimdevices.com/member.php?userid=72324 View this thread: http://forums.slimdevices.com/showthread.php?t=115497 ___ Radio mailing list Radio@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/radio
Re: [SlimDevices: Radio] no sound when using battery
M8G wrote: > ok, i have tried with another battery pack, and it's the same issue. No > sound when running the radio from battery power. > Can it be any faulty switch inside the board or bug in the firmware? sorry to hear..just to clarify (and perhaps attract someone with another idea): YOUR UE RADIO WORKS FINE ON ADAPTOR. BUT ON BATTERY THERE IS NO SOUND FROM THE SPEAKER, BUT THERE IS SOUND THROUGH THE HEADPHONE JACK, CORRECT? Again, I don't know the design of the radio, no schematics are available, but anything I might suspect is eliminated because everything works while on line power (e.g. faulty headphone jack switch) So, maybe someone else has an idea, but until then, here's a couple things I might try... 1) If you are running as a UE radio, try switching to a sb radio (firmware) - it's in settings->advanced .. 2) I assume you did a factory reset. 3) There is community software for the radio and touch that you could try. It all started as a "bass missing" problem https://forums.slimdevices.com/showthread.php?104141-Bass-amp-problem and then developed into new firmware https://forums.slimdevices.com/showthread.php?111663-Community-Build-Radio-Firmware&highlight=community 4) In the two threads above, maybe you can look through them and see if there are any similarities. If you see something, maybe quote reply in that thread with your issue. I am really sorry I couldn't help more, I'm just a happy sb user, not one of the developers. Maybe we can attract their attention. Jim Redrum's Profile: http://forums.slimdevices.com/member.php?userid=33806 View this thread: http://forums.slimdevices.com/showthread.php?t=115497 ___ Radio mailing list Radio@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/radio
Re: [SlimDevices: Radio] no sound when using battery
Redrum wrote: > let us know how it goes! > > Jim ok, i have tried with another battery pack, and it's the same issue. No sound when running the radio from battery power. Can it be any faulty switch inside the board or bug in the firmware? M8G's Profile: http://forums.slimdevices.com/member.php?userid=72324 View this thread: http://forums.slimdevices.com/showthread.php?t=115497 ___ Radio mailing list Radio@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/radio
Re: [SlimDevices: Radio] no sound when using battery
M8G wrote: > I'll grab a new battery pack and see if the speaker comes to live again. let us know how it goes! Jim Redrum's Profile: http://forums.slimdevices.com/member.php?userid=33806 View this thread: http://forums.slimdevices.com/showthread.php?t=115497 ___ Radio mailing list Radio@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/radio
Re: [SlimDevices: Radio] no sound when using battery
Redrum wrote: > I have never seen this, but I'll take a stab at it, a couple guesses, > for what it's worth. > > First, do you get sound out of the headphone jack while on battery? > > Here's what I am wondering (again, a guess). Perhaps the battery is > weak. The batteries might measure ok in open circuit, but when they are > asked to supply current, they cannot, or, if your do, the voltage drops > lower than fresh cells. Maybe it can power the processor, UI, etc (lower > current draw) but it cannot supply the audio amplifier in addition > (additional current draw) or the audio amp has a "turn on threshold" > (voltage) of sorts that is not met because the supply droops. > > My thought is Maybe the low level signal output of the headphone is > prior in the signal path. > > Again, I know nothing of the design of the radio, just thinking "what > can happen". > > If you have another battery, or are willing to get another one, it would > be worth a try. Even if, say you got one from amazon, made no > difference, and you returned it. > > Another thought (again, no experience) is if you use an ethernet > connection, does this use less power than wifi? Others might know. > > Jim hello Jim thanks for ur great evaluation. I guess u are right with ur points. I have checked to run it with battery and sound coming from the headphone jack. So there's nothing wrong with the out-put sound from there. I guess its related to old battery voltage. I'll grab a new battery pack and see if the speaker comes to live again. M8G's Profile: http://forums.slimdevices.com/member.php?userid=72324 View this thread: http://forums.slimdevices.com/showthread.php?t=115497 ___ Radio mailing list Radio@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/radio
Re: [SlimDevices: Radio] no sound when using battery
You could try to reinstall firmware and then do a factory reset. michel's Profile: http://forums.slimdevices.com/member.php?userid=4393 View this thread: http://forums.slimdevices.com/showthread.php?t=115497 ___ Radio mailing list Radio@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/radio
Re: [SlimDevices: Radio] no sound when using battery
slartibartfast wrote: > If the battery voltage was low it would turn off and tell you to charge > it. I've never seen this either. > > Sent from my Pixel 3a using Tapatalk it was a stab in the dark. I didn't say low, I said weak, as in the internal resistance of the cell or cells is high, causing a limit of the current, or a drop in voltage when current is demanded. My wild guess is if the audio amplifier was starved. Of course I don't know of the power management hardware or firmware in the battery, does it detect "weak"? I once bought radio used that (on adaptor) powered up, but when you went to play it died (rebooted). I replaced the power supply and it was fine. I surmised the power supply was capable of open circuit voltage, but when current was drawn it failed to deliver. my comment on "does it play through headphones" was more a curiosity. If he said yes, I still wouldn't have any more to offer :) Jim Redrum's Profile: http://forums.slimdevices.com/member.php?userid=33806 View this thread: http://forums.slimdevices.com/showthread.php?t=115497 ___ Radio mailing list Radio@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/radio
Re: [SlimDevices: Radio] no sound when using battery
Redrum wrote: > I have never seen this, but I'll take a stab at it, a couple guesses, > for what it's worth. > > First, do you get sound out of the headphone jack while on battery? > > Here's what I am wondering (again, a guess). Perhaps the battery is > weak. The batteries might measure ok in open circuit, but when they are > asked to supply current, they cannot, or, if your do, the voltage drops > lower than fresh cells. Maybe it can power the processor, UI, etc (lower > current draw) but it cannot supply the audio amplifier in addition > (additional current draw) or the audio amp has a "turn on threshold" > (voltage) of sorts that is not met because the supply droops. > > My thought is Maybe the low level signal output of the headphone is > prior in the signal path. > > Again, I know nothing of the design of the radio, just thinking "what > can happen". > > If you have another battery, or are willing to get another one, it would > be worth a try. Even if, say you got one from amazon, made no > difference, and you returned it. > > Another thought (again, no experience) is if you use an ethernet > connection, does this use less power than wifi? Others might know. > > JimIf the battery voltage was low it would turn off and tell you to charge it. I've never seen this either. Sent from my Pixel 3a using Tapatalk slartibartfast's Profile: http://forums.slimdevices.com/member.php?userid=35609 View this thread: http://forums.slimdevices.com/showthread.php?t=115497 ___ Radio mailing list Radio@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/radio
Re: [SlimDevices: Radio] no sound when using battery
I have never seen this, but I'll take a stab at it, a couple guesses, for what it's worth. First, do you get sound out of the headphone jack while on battery? Here's what I am wondering (again, a guess). Perhaps the battery is weak. The batteries might measure ok in open circuit, but when they are asked to supply current, they cannot, or, if your do, the voltage drops lower than fresh cells. Maybe it can power the processor, UI, etc (lower current draw) but it cannot supply the audio amplifier in addition (additional current draw) or the audio amp has a "turn on threshold" (voltage) of sorts that is not met because the supply droops. My thought is Maybe the low level signal output of the headphone is prior in the signal path. Again, I know nothing of the design of the radio, just thinking "what can happen". If you have another battery, or are willing to get another one, it would be worth a try. Even if, say you got one from amazon, made no difference, and you returned it. Another thought (again, no experience) is if you use an ethernet connection, does this use less power than wifi? Others might know. Jim Redrum's Profile: http://forums.slimdevices.com/member.php?userid=33806 View this thread: http://forums.slimdevices.com/showthread.php?t=115497 ___ Radio mailing list Radio@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/radio
