I have a board on the back of a console for an elliptical machine that blew an LDO. I wasn't able to find any schematics for the board and the damage destroyed the label on the LDO. The board gets power from a 7.5v 1a WW. Does it matter if I use a 5v LDO instead of a 3.3v LDO? I went ahead & ordered the 5v but it is just a bit larger than the existing LDO.
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thats the output voltage - get it wrong and your gonna write off whatever it powers.
what exactly is an eliptical machine?
what chips does the ldo supply power to?
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Thanks for the reply - I am aware of what the LDO does. This is a console(monitor) for an IRONMAN elliptical exercise machine that is at least a decade old. The owner plugged in an incorrect power supply and it blew the LDO, which acted as a fuse. I guess I should try to find out what the power supply in question was outputting. There was another person online who had a similar thing happen to the same machine and said that he replaced the LDO with a 3.3v, it worked but the display was somewhat dim so he replaced the LDO with a 5v and he said it was much better, which is why I am asking here. I have limited info for this device. I did some research online to view similar board(s) designed by the same person and the LDO that was used was a 5v based on the part label & datasheet. I'm not sure if a picture of the board will help but I can provide one if it will.Comment
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if you find out the part numbers of the chips it powers then we can look up the voltage the chips expect
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Hi everyone,
I am trying to fix a samsung washinmachine power supply main board.
I already replaced it with another one to fix the machine but i want to try understand the issue with the old board.
Therefore i hope to be able to get some help to explain what to check in order to troubleshoot.
The power supply board reference is the following: DC41-00189a
I have followed one thread (https://www.badcaps.net/forum/troubl...ingmachine-rel... -
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... -
All left and right refers to looking from rear of TV (or looking from front with TV upside down)- TV came with vertical bars and no image. Found faulty TVS on left buffer board. Also replaced T-Con (may have damaged the original while hot air removing components, board has slight warp) and have full image but few horizontal lines on the screen. Some of the lines appears to be 2 pixel tall while others are 1 pixel tall.
- Disconnecting left and right buffer board potentially reveals problems on both sides with different signals (unless this T-Con require jumper like Samsung FB_TRDY1&3) Fault
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Hi There,
This TV was auto switching off after few seconds with some vertical lines on the screen, so got a new TCON board and replaced it.
After replacing the TCON board it was working fine and i set it up with everything, used for few hours, then had the bright idea to update the software on it. During the update process, TV switched off and now no audio or video. No relay switch sound.
More Details
TV Model - LG OLED77G1PUA
Got the same exact TCON board from TVPartsToday and replaced it. But didnt transfer the EPPROM data (didnt... -
Hi, Friends,
Recently i ve got a pos machine board and the problem was 3 USB ports out of 5 not working. When a mouse is plugged mouse light is worked, but not detecting.
So i changed bios chip from all working machine and then Usb PORTS work for few minutes. So any one of you have same experience with this board. please share your ideas,
and schematic if you have,
Model - XT-4015 ver F.
Thank you.
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