Re: Antec AR300 psu, loud squeal, no power
Kinda thought that, but a replacement is expensive here in the uk.
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Re: Antec AR300 psu, loud squeal, no power
My thoughts on repair:
Don't bother.
PSUs are only just worth the trouble of repairing if they basically work but have tired caps, but once the have damaged components like ZD3 - its not worth it.Leave a comment:
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Antec AR300 psu, loud squeal, no power
I've read the other posts on this psu but not sure if a repair is possible, the psu emits a loud squeal when powered up but that's all, its 2004 vintage so suffers from the badcap syndrome, I've posted some pictures of the pcb, any thoughts on repair?
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Hello,
I've got a really strange issue with the speakers on my Philips 43PUS7506/12. It makes this awful loud buzzing now. It happened after it was attempted to be wall mounted - I think the back got squeezed and something broke.
I thought maybe the speakers got damaged, so I replaced them - no dice.- Using the internal speakers, it always happens.
- Using the headphone jack, it never happens.
- Using the digital/optical out with a soundbar - it happens after about 2h/movie runtime - it's never as drastic, it just pops in and out, but I didn't want it to damage the sound bar
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Hi. Not our mainstream line of work - we work with digital mostly. Will study the schematic found on the internet. The output darlington transistors appear to be ok. Even with no input, the output is extremely loud with static / crackle / pop. Any ideas? Will post more details and fix as we continue the review. Have not checked the main power supply rails yet (+-40V and +-16V).
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I've got a monitor on my workbench at the moment that makes a high pitch squeal (that I cant hear as my ears are too old) when you power it on and lasts a couple of seconds before quitening and apparently it can be heard at regular intervals whilst on.
On opening up the monitor and looking at the PCB the usual suspects showed their heads so I have already replaced all the electrolytic capacitors.
The other issue that was reported with this monitor was the fact it took ages to start displaying anything after pressing the power button.
What component(s)... -
Hello Badcaps Members,
I'm experiencing an issue with my Lenovo ThinkPad E15 Gen 2, and I'm hoping someone here might have some insight. The laptop charges to full capacity, but as soon as I power it up, I get a loud sound, and there's no POST.
I disconnected the battery and connected a USB meter, which shows 20V 0.23A when the sound occurs. I've already tried changing the screen, but it didn't resolve the issue.
When I use Lenovo PC Diagnostics App I get results as 01000
Here are the details:- Model: Lenovo ThinkPad E15 Gen 2
- Board Numbe
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lenovo t14 i7 10 gen : I press the power button and there is a loud fan noise for about 3 seconds and power light is on. Nothing on display screen. i have removed the battery and bios battery still the same. i have put yesterday on update and charger ,i have leave and back and see this problem. Any One Can help Me ?09-27-2024, 02:40 AM
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