The speaker did not power up, so it was taken apart and inspected. Nothing wrong was found, but the speaker started working for some reason. Perhaps, this is more like a teardown.
I've experienced this before.... perhaps the board was bumped off-center and something was shorting to ground. Re-positioning the board made things work again. Also, maybe there's a small crack in the solder somewhere. Who is to say now that it works?
I have many of these speakers and 11 of them had the same problem and when I take it to repair they say did not find anything and probably was a faulty connection ,not too long I had another one with the same problem I disassemble it completely and put back together again and started working again, seeing this video with the same sympton definetely yamaha had a quality problem with these series, the worst thing is for my taste is these speaker are much better than the DZR and they don't make it anymore.
I think it might be humidity in the contacts, but now few days ago I had to send another dsr112 to repair, so I'm waiting to see what happened this time, but definetely yamaha made something wrong with these models and no wonder they got discontinued so quick
Only one way forward for this speaker and thats to go over the PCB's with a fine tooth comb and look for cracked/broken traces, components, connectors. Something has had a nudge and is just waiting to go wrong again. The wiggle/prod test wouldn't go amiss either. Saying that, if it's for personal/home use then maybe just enjoy it!......repair can be for another day. Max. peak SPL is 136dB....nice!.....enjoy!......:-)
Can't fix it if it ain't broke. But.. did you inspect the leads on all the power devices? Sometimes they break right where they enter the plastic case due to flexing, either from rough handling or many hours of bass vibration and it's difficult to see. You might need a magnifier. The old short, sharp, shock ( bang it against the bench ) method may reveal these. I enjoy your videos.
Can i ask question here about my class d module of built-in on active speaker, , when i turning the switch on I've heard a little sparkling noise and no power indication on back panel, so i turn off the switch and turn on again this time the power indicator come on and i can play sound even longer w/o a problem, i wonder what noise is it and how to fix it so that i didn't switch on twice every time i used it....looking forward to help me out tnx in advance.
@@gianniskousidis4614 i think so! i only took some apart and realised i didnt have time to take it all completely apart and i turned it on and its all working again! i am not sure if it something to do with a safety feature that needs to be reset. perhaps a capacitor is still providing power to a chip somehow that is enabling protection mode to be on. once disconnected perhaps it breaks that connection enough to reset it. i have no idea what it could be
there is a problem.. :( after using it for a certain time and volume it will randomly shut off. where the other dxr will be fine and sounding great, this one just shuts down and wont come back on until it is ready
@@Retrobution safety circuits is all about measurements .. rusty connector's change value's. Do a close up inspection on board if there no obvious signs of damage most likely it is connectors .
Yo tuve el mismo problema con este modelo Yamaha dsr tanto en las 115 como dsr112 y según el técnico m dijo que era una pequeña falla de soldadura que con las vibraciones metiera un sonido como cartoneo soldó bien y se acabó el problema y ahora tengo el mismo problema en otra bocina así que quiero pensar que fue un problema de manufactura ...
Hello ! Can you please tell me wich are the colour for+ and - at the terminal of the tweeter ? I repaired a driver and i am afraid that i reversed the terminal colours.
I really dislike situations like that with no confirmed fault, it always leaves you wondering if/when it will fail again.
...... Wonder if it happens to NASA technicians just before a launch ?
All technicians dislike such situations.
100% crazy odd
I've experienced this before.... perhaps the board was bumped off-center and something was shorting to ground. Re-positioning the board made things work again. Also, maybe there's a small crack in the solder somewhere. Who is to say now that it works?
80 Volts could give you a tinkle! I'm a bit drunk now. I love your repairs - very considered and methodical.
I have many of these speakers and 11 of them had the same problem and when I take it to repair they say did not find anything and probably was a faulty connection ,not too long I had another one with the same problem I disassemble it completely and put back together again and started working again, seeing this video with the same sympton definetely yamaha had a quality problem with these series, the worst thing is for my taste is these speaker are much better than the DZR and they don't make it anymore.
Hi what is your use case for these dsr115s? What do you think was causing the problems
I think it might be humidity in the contacts, but now few days ago I had to send another dsr112 to repair, so I'm waiting to see what happened this time, but definetely yamaha made something wrong with these models and no wonder they got discontinued so quick
Yeah, this is a good channel. Best wishes from Finland🙌🏻👍
Only one way forward for this speaker and thats to go over the PCB's with a fine tooth comb and look for cracked/broken traces, components, connectors. Something has had a nudge and is just waiting to go wrong again. The wiggle/prod test wouldn't go amiss either.
Saying that, if it's for personal/home use then maybe just enjoy it!......repair can be for another day. Max. peak SPL is 136dB....nice!.....enjoy!......:-)
Can't fix it if it ain't broke.
But.. did you inspect the leads on all the power devices? Sometimes they break right where they enter the plastic case due to flexing, either from rough handling or many hours of bass vibration and it's difficult to see. You might need a magnifier.
The old short, sharp, shock ( bang it against the bench ) method may reveal these.
I enjoy your videos.
I think I did. I didn't see any broken leads. Might have missed of course.
I would suspect an intermittent connector and clean all of the connector contacts.
hi, did you found the solution ?
Can i ask question here about my class d module of built-in on active speaker, , when i turning the switch on I've heard a little sparkling noise and no power indication on back panel, so i turn off the switch and turn on again this time the power indicator come on and i can play sound even longer w/o a problem, i wonder what noise is it and how to fix it so that i didn't switch on twice every time i used it....looking forward to help me out tnx in advance.
Thank so much. I was able to fix my Speaker through this method but I noticed the led front light was the cause. I just disconnect. That's all
How do you know that the light was the cause? Seems very unlikely.
To be continued? :)
Hi, got same problem, but mine I identify the problem at the dsp cy023, do you know where to get the replacement board? thanks for sharing
Is the switching transformer hot or not in the normal position..
Can i get a Schematic diagram?
Yes- Offer a PDF link !!!🙂
this exact thing has happened to my dxr 15 tonight. i hope it is as easy as disconnecting and reconnecting!! did this problem occur again? thank you
Any news about your problem ? re seat connectors work for you ?
@@gianniskousidis4614 i think so! i only took some apart and realised i didnt have time to take it all completely apart and i turned it on and its all working again! i am not sure if it something to do with a safety feature that needs to be reset. perhaps a capacitor is still providing power to a chip somehow that is enabling protection mode to be on. once disconnected perhaps it breaks that connection enough to reset it. i have no idea what it could be
there is a problem.. :( after using it for a certain time and volume it will randomly shut off. where the other dxr will be fine and sounding great, this one just shuts down and wont come back on until it is ready
@@Retrobution safety circuits is all about measurements .. rusty connector's change value's.
Do a close up inspection on board if there no obvious signs of damage most likely it is connectors .
nice job
Are there any updates to this? My DSR speaker is doing the exact same thing.
Yo tuve el mismo problema con este modelo Yamaha dsr tanto en las 115 como dsr112 y según el técnico m dijo que era una pequeña falla de soldadura que con las vibraciones metiera un sonido como cartoneo soldó bien y se acabó el problema y ahora tengo el mismo problema en otra bocina así que quiero pensar que fue un problema de manufactura ...
Hello ! Can you please tell me wich are the colour for+ and - at the terminal of the tweeter ? I repaired a driver and i am afraid that i reversed the terminal colours.
@1:36 pin 1 is blue and pin 2 is yellow. Then look into the service manual: pin 1 is ground
@@feedback-loop Thank you sir !
Same problem, first time I've disassembled the amp, removed cables and then all it works. At the first rent same problem. Solution?
check for cold joints on the board.
Mi consulta especifica es donde puedo comprar la tarjeta del Powered Speaker Yamaha Model DSR115
Hola ,la consegui en fullcompass.com.
It is called: "The laying of the hands"
You don't want us know how you fixed it, what diode and ic you replace so that the amps come back alive.
I like to share my probem of my speaker dxr 15"
Sound DSR IS BEST 🙂👍 better than DZR 🤔
Hi
Hm.
Hi