Re: Extractor Fan power supply
The highest value I've got is a 100uf, if the ones I've linked to are ok I'll just order those.
The highest value I've got is a 100uf, if the ones I've linked to are ok I'll just order those.
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Re: Extractor Fan power supply
Well if you have two of those connected in parallel that's awfully close to 220uF
"The one who says it cannot be done should never interrupt the one who is doing it."Comment
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Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809Comment
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Re: Extractor Fan power supply
I only have one 100uf, could I use that with the one that was previously installed which was giving me a reading of about 75uf just for a test.
To install them in parallel do I just join the + and - legs together.Comment
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Re: Extractor Fan power supply
Yes you can, and your connection idea is correct.
It's good for a quick test like this..."The one who says it cannot be done should never interrupt the one who is doing it."Comment
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Re: Extractor Fan power supply
The Fan seems to work fine with the extra capacitor in parallel with the old one, so if the capacitors I linked to in a previous post are OK I'll order those.
Thanks to everyone for all your help.Comment
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Re: Extractor Fan power supply
Yes it should be fine, probably does not matter if it is low ESR or not in this circuit.
It might be a good idea to check the capacitance of the C1 X2 film capacitor as well, if you are anyway placing an order..."The one who says it cannot be done should never interrupt the one who is doing it."Comment
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4 years on this discussion helped me repair my fan, same 449252 pcb, labelled as type F100T1 Lieferant supplied by APL, probably from Toolstation, about 8 years old. Same fault with underspec electrolytic 220 uf capacitor, replaced and working again. Thanks.
ChrisComment
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Vizio e601i-A3 - Has Sound and Display, But No Backlight - Bad Power Supply Board or Bad LED Bulbs ?I was given this TV from my great uncle. He said it just wouldn't turn on one day out of nowhere, replaced the TV, and gave it to me to possibly fix and use for myself.
Upon bringing it home and plugging it up, it showed a standby light.
I powered it on and without a flashlight, the display showed the "V" but the lighting is very dim, but visible.
The screen seems to blackout and stay black, but with a flashlight I can see the display.
With my Playstation 4 connected via HDMI, and running a game I can hear sound.
Assuming... -
I have wanting to do this project for quite sometime now and I finally found a switching power supply that will work on this desoldering gun station ZD-915 that the original switching power supply took a shit and just was not worth trying to fix it because this switching power is not quite big enough to handle the heater element and the vacuum pump
One note when I tested the switching power supply and the voltage control board I noticed that this desoldering gun heat up much faster than the original switching power supply which I was really surprised by to the point that I might buy... -
I have been working on this concept for quite some time now with limited success but recently I found a switching power supply that is setup for the voltage that this soldering station needs to operate at however it also needs part of the secondary circuit from the original switching power because you need several voltage rails
I once tried to get a ZD-915 desoldering station to work on a 18 volt battery power supply but unfortunately things did not go well but I did find a work around but I might try this idea again but going at a little differently more about this another time... -
The sub developed a constant popping every couple seconds from woofer and power LED flickering with nothing but wall AC connected. Connecting an audio cable didn't change anything. It doesn't play but a second or two of audio in between the pops.
Opened it up and discovered the power supply is making a faint clicking or ticking sound.
I measured the amp's output to the woofer and it pulses up to 50mv DC to be driver. The pulses coincide with the power supply ticking/clicking.
I measured the power supply output going to the amp board and it too has this pulsing. Voltage cycles... -
Hello Everybody,
Trying to repair a power supply from a Russound CA4 Multizone Controller (picture attached)
Russound no longer supports it but were kind enough to provide a schematic of the power supply (pdf attached).
The outputs marked 12v and 20v are all measuring only 1v.
The board is clicking, which I think means it is in something called hiccup mode when the flyback transformers switches because of an internal problem or something else on the board Overloading it.
The capacitors physically look clean (no bludgesor leaks) and...
Comment