Re: LC401EM2F hit by lightning
With a meter set to diode function.
With a meter set to diode function.
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Re: LC401EM2F hit by lightning
First off... finding some of them diodes or any other component can be hard. sometimes you need to either add or delete some letters to get that answer what you want. In your case I already knew the answer, as I ran into that problem before. The diode you are looking for is a "BS series". Here is a datasheet on the BS series:
http://www.alldatasheet.com/datashee...LEC/24BSB.html
Also check resistors, they can be open or changed value. The later can be a bitch.Comment
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I got this set for very cheap, it works perfectly but the catch is that the protective coating was damaged. About 45% of the screen had a green tint, you can see exactly where the layer changed colors to a blueish tone (that actually makes everything green).
"Ok, that's probably just the anti-glare layer" - I thought. So using a microfiber cloth and automotive metal polish I was easily able to turn it into a nice mirror.
Unfortunately, the damage was beyond this layer and everything still had a horrible green tint. I initially... -
Problem
This is an LG edge LED lit LCD Display. The LEDs are on the bottom edge of the display. There are 2 bars (left and right) Each bar has many LEDs and a 6 pin connector. Each pin drive several LEDs thus is the highest current flow / heat junction. The weak lead free solder gradually fails with thermal expansion/contraction cycling and increases resistance. PSU will compensate up to a point, then when the current is too high, PSU just shut down the backlight causing a dark display. I have even seen one which the connector just fell off as solder points became completely detached.... -
04-04-2025, 09:04 AM -
Hello!
I am replacing the booster IC (glass IC on the other side of the HDMI port) and I had to use a bypass chip I from Sourcely. I got everything set up and resolved the issue I was having from that (different line was OL) but now I am contending with this one. Is there something I can do to restore the signal?
Attached is a photo with the pad in question that is supposed to supply the signal to pin 13 on the HDMI port. Tweezers where I am pointing to.
...12-18-2024, 02:29 PM -
Just starting out in electronics repair and teaching myself as I go.
I have here a Corsair RM650 ATX PSU, which I'm treating as a learning project that if successful may be used in my PC.
Fuse was blown, probable power surge from lightning, followed the circuit and found, a dead relay and all the diodes and resistors around the bridge rectifier shorted. Rectifier and MOSFETs seem fine on the LCR.
Also found these tiny diodes on the other side, a few shorted, the rest seem fine. But they're not all marked as Zener on the pcb. So I'm unsure what these should be replaced with....
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