CapLeaker
Leaking Member
Last Activity: Yesterday, 07:20 PM
Joined: 12-04-2014
Location: Atlantic Canada
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Is rekordbox maybe in EXPORT mode? That will also disable all buttons. -
Look for capacitors in the audio chain that are in series with the flow of audio serving as a DC block. Very typical cause for low volume.Leave a comment:
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Can you do a firmware upgrade or a hard / full reset?Leave a comment:
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If it is a cap issue, warm that thing up with a hair dryer no more so you can’t touch it.
To me it sounds like a different issue. More like I2C between couple of chip direct communication not working, kernel panic or something along that line. It either crashed, or it is waiting for a different chip to communicate and thus never finishes. Maybe you find some serial or a TTL output to hook up a terminal to and see what happens when you boot.Leave a comment:
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Turns out this ol’ thing does run Win 11 pro just fine!
Cloned Win 10 pro HDD to SSD using an SSD to USB converter and using Clonezilla. Kicked the HDD out and installed the SSD. After a couple of reboots WIN 10 pro ran perfectly fine.
Then I downloaded the WIN 11 25H2.iso file and mounted it by double clicking on the .iso file.
Ran the powershell in admin mode and began went to the mounted iso file by going cd E:
Then ran ./setup.exe /Product server
This will bypass the nag about old hardware not supported bull sheet. I proceeded the install...Leave a comment:
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Try boot repair disk. That used to fix mine a while back.Leave a comment:
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There must be 5Vsb on that connector. IF there is none, you have to fix that first… otherwise there will be an absolute no go. How this works is VSB is always on on the PSU and gets sent to the main board. The main board will return the PSon and BLon, DIMM etc commands to the PSU. Without VSB on CN101, there is nothing going to happen… ever.
Fix VSB first then try the psu again by either putting everything together or forcing the PSU on by itself....Leave a comment:
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Probably just a standard flyback diode to protect from damage due to inductive spikes when actuating the mechanical switch. That’s all that is.Leave a comment:
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Cuz there is a an active Power Factor Correction circuit that boosts the voltage to around 390 VDC. If that isn’t there, the TV is never going to work.
Thats why I said, either the PSU is off, or there is something wrong with the PFC circuit. VCC at 1.1Vdc it is in undervoltage lock out....Leave a comment:
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165VDC on the main cap? When that thing is turned on you should have closer to 390VDC there. So… either it isn’t turned on or your APFC isn’t working. Plus IC901 is in UVLO with VCC at 1.1V.Leave a comment:
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Well... I got another one of these power supplies in. Yeeep... exact same thing again! Replaced all 4 parallel MLCC's with 50V 10uF XR7's in bank C912x on the back side and she is working once more. Easiest Avaya PSU repair ever.
Remember to replace all 4 of them, other than that it will come back again! 
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It is also voice dubbed in English. Didn’t know Bosch makes an upright stick vac like that. Must be a Euro thing…
it’s always nice to get the cordless toys fixed for nuttn when the warranty ran out and ends up being an easy fix.!
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I was wondering about how good it actually is compared to something else. Didn’t have much time to look into it as life is very busy at the moment for me. Was hoping that someone tried it. NRF Always uses a lot of flux when doing a repair. And at the end, he has a business and a family to take care of too. He is just for my liking a bit pricey. I had a $1k Epson slip printer board for fuel trucks here as a rush repair. I am sill using Amtech and the Weller WD1 with the WP80 iron. Works A1....Leave a comment:
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Talking about flux… Northrigefix has some new goo.Leave a comment:
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What is printed on the SOT223 mosfet? N channel or p channel MOSFET uses depend on where they are used like high side or low side switching.Leave a comment:
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I am saying it’s time to bring out the oscilloscope and see where the audio disappears. Whatever the problem is affects both sides. Switch, muting, an IC etc.Leave a comment:
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On the second last picture, look at C28. Is that cap installed backwards?Leave a comment:
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Maybe upload some high resolution, straight shot pictures, so we can see something. You sure that switch on the reverb is good too, right?Leave a comment:
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If you “quote” me or CapLeaker I get notifications. Otherwise I don’t. But you as the thread owner, should be automatically notified if some replies to your thread....Leave a comment:
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