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sony sdm-p234 very rare issue never seen before
The monitor is old yes but occasionally used (perhaps about 1 ~2 hours usage per day on average)
one time i turned the pc on and noticed this issue
what could it be?
nothing wrong is seen when it is off, also the issue is not there on a green screen!
when watching movies it is hard to detect unless in black screen/large shadows
please check the images, thanks...
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it does a float charging and lithium cant take more voltage by giving more current, nothing goes to it, so it never go beyond 27.3
we dont want to go into that coz it is totally another topic
i dont have anything that is loose, notice how the sound stops immediately after turning off the pc and lcd while still on bulb...
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i dont have SLA anymore, i dont think this has to do with the battery wutsoever, the battery is charged with the ups, so it stops charging everytime exactly at 27.3v, and at any voltage the ups will make so IF the same type of load is used, on bulbs it never do that at any voltage and any load, so apparently it is related to the type of load and not the battery, on top of that, regardless where is the sound coming from? the transformer or something else, it seems like the transformer humming is continuous and the sound is extra (not replaced)...
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Logged in or not, i have never seen the mp4 attachment also until now after i have posted it, nor got any notification for removal, also the reply mail notifications comes so late, so these are 2 issue for the admins to check
here is a link for the video, plz guys help
[url]https://drive.google.com/file/d/1Xk7YuwSRQvvZx4nuIUvcsswkd54CqOXG/view?usp=sharing[/url]
this sound is not normal and it does not appear unless there is an inductive load, resistive loads like heaters or tungustin bulbs never do that, it is not by chance, many times if the battery is full and the inductive...
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this is so strange i am sure the video was there when i posted, now me also dont see it, what to do?
guys it is NOT sparking, it is making a similar noise like sparking, i have already checked it in the dark, no sparking
btw a local technical that i dont know told me to replace the resistor of the frequency! as well as the orange ceramic cap, does that help? we need the video though!
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Niky 1000 UPS making strange sparking noises (video)
anyone can explain what and why is this sound "ezz ez ez zzz" clearly starting from 0:34, the ups is niky 1000, i am using 7s6p good lithium 18650 cells pack, that sound only appear when i load any pc or lcd or crt, but never ever when using even much higher load 200w tungsten bulbs, althogh the sound, it never shut down nor give a warning and the pc or lcd or crt works completely normal at all times, in the video u can notice that the bx100 (voltmeter) is restarting with the sound, also the bulb flickers with the sound, i have checked only the largest cap on board (which is not that...
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Niky 1000 ups is making HDD loading noise
It has been sitting for a long time without use, now got a battery and connected it to mains to charge, without anything connected to it, also without powering it on
the sound is exactly like an old hdd loading noise (not even continuous also) , what is going on and should i be worried?
thanks
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Re: Kenwood K266 kitchen machine
yup already got one also
thank you guys, you are really life savers...
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Re: Kenwood K266 kitchen machine
thank you so much, worked perfectly by replacing the cap))
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Re: Kenwood K266 kitchen machine
ok I will replace it and let you know how it went
thank you very much for your support...
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Re: Kenwood K266 kitchen machine
very true and i have already tested that cap outside the pcb and it is actually giving me about 2 times its rating, any idea what does that mean?
the cap looks good btw
thank you...
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Kenwood K266 kitchen machine
Device works randomly for 1 sec for every 20 trial
so it is not really dead
by removing the relay top and pushing its mechanism the motor works normally but ofcourse while bypassing the speed control
I am not sure if the relay was the issue or something else
I have a question, how this relay works when I cant see any 24vdc supply
on the pcb to power it
hope to hear from you guys
here is video for how i bypassed the relay
[url]https://www.youtube.com/watch?v=nKZg_bcCrR8[/url]https://Device works randomly for 1 ...r /> so it is...
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Re: rio volt portable mp3 cd player.What type of caps are these?
thank you
do u have any other answers for the other questions?...Last edited by GraphicMan; 09-12-2022, 11:11 AM.
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rio volt portable mp3 cd player.What type of caps are these?
Hello
this is a rio volt portable mp3 cd player main board
accidentally its 120ac power adapter was used with 220ac
the unit worked for few seconds and then off and never worked again
it normally takes 3volts batts or 4.5dc from the adapter socket
in the picture I believe this is the main power IC (4 channels)
it is the only area in the board that barely gets warm after few minutes
drawing 0.4 watts in total continuously
i did checked all the caps on the board including these caps around the IC
nothing is shorted...
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Re: CRT TV LG RT-29FB75VE noise faint on screen
that is very valuble information for me
but you have said earlier that it could be from the low voltage power supply, and the str is the low voltage ps, right?!
if u look in its manual, the str provide many low voltage outputs for this model, i am just wondering if it is failing
btw i have another interesting question
I am sure i have adjusted the tilting of the screen from the main menu
but then when i moved the tv from place to another in same room (very carefully) I noticed that the screen...
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Re: CRT TV LG RT-29FB75VE noise faint on screen
very informative, thanks a lot
you know i have already replaced the original str but with a lower watt version!
but the tv is working fine for many months so far, also i am placing a 10cm fan infront of the fbt and the heatsink with have the str, it helped to drop the temp of the heatsink from 71 to 41 max! )already placed a sensor on the heatsink
so could that be from the str? it is not original and not the same model also W6756 instead of the original X6756
fbt also replaced...
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