A TFT panel that differs with the original one in display colors, respond time, contrast ratio or all of them, can i use it as replacement? If not, would it damage the logicboard or the panel itself if i try to replace?
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Well, due to my grid tie inverter not accepting high voltages, and the fact that the lions in my solar panels are 36V (72-cell) I think I need to stick with 72-cell.
However I have a few smaller panels that are 36, 32, and two 30-cell. The 36 and 32 together run at 75% efficiency (and subtract more with additional inefficiencies) when running in parallel with the 72-cell panels. The kicker is that the two 30s... generate 0% power when connected in parallel(!)
So now what to do with these small panels?
I could sell them...
Or I could shim them.... -
Hi everyone,
I’m currently learning about the USB protocol and designing a project, but I’ve encountered a few questions that I couldn’t find clear answers to. I’d really appreciate your input!
1. USB 3.2 Gen 2×2 with SuperSpeed Type-A Connector
According to the USB 3.2 specification, it states that USB 3.2 Gen 2×2 can support a SuperSpeed Type-A connector. This raises a question:
If we use a SuperSpeed Type-A connector, the system would only utilize 1 lane for data transfer, leaving 1 lane from the host unused. Is this configuration valid,...06-26-2025, 03:27 AM -
Hi I am trying to refurbish this crossover with some higher quality poly-caps/parts... The speaker is a in-wall Polk 65-RT... Key questions I have are:
1) What in the world is the yellow part on the board (label is MET 1.0J 100V)?... Should I even consider replacing it?
2) The 470uF cap.... Does anyone know have a suggestion as to where I can find a reasonable audio quality polycap near that value? (or at least 3 160s or the like?) { I don't want to spend $70 just to replace this one if I can) (maybe even someone looking at this circuit could even tell if this cap is important... -
Apologies if I am asking the wrong questions , but not sure how else to start:
I have an A2251 / 820-01949 Mac book pro with no power, 20 v on USBC meter and 0.05 Amps. Following this link ( below)
* Do I need to remove the board from case so I can access its other side ? The link calls for measuring PP3v3_S5 ( I suppose this is in diode mode with positive probe on ground) , but I don't know how to do that without removing the board from case.
* I have the FlexBV board , are the values displayed in volts diode mode only ? Because my etekcity multimeter shows... -
I came across a 50inch TU8000 that wouldnt start up properly (blinking stand-by light, backlights would cycle on and off).
When i opened it up and removed the power to the mainboard the backlights powered up and everything looked uniform.
When reconnected the mainboard but disconnected the flex cable to the panel i heard the TV startup with the intro sound.
Later I checked for shorts on the panel PCB boards but could not find anything.
When I took a look with the FLIR i noticed the 2 resistors...08-10-2024, 08:39 AM
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