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  1. Delta Prime

    Full black background screen on Raspberry Pi 4 Model B

    Forget about isolation, focus on commonalities. your SD card is corrupted.
  2. Delta Prime

    Can an audio amplifier be used to transmit or receive radio signals?

    Indeed, he was paraphrasing Confucius. My professor of mechanical engineering had one digit remaining on both hands,it was my first introduction to Confucius; I was 16 at a time. To this day, I study and reference the post you have made across various electrical , electronic engineering sites. I...
  3. Delta Prime

    Air Hockey Table Scoreboard help

    Looks like a Harvard air hockey controller. https://harvardairhockeytablepartsfnl.wordpress.com/ https://ustha.com/air-hockey-table-harvard/
  4. Delta Prime

    Designing Active Cell Balancer using STM-32

    why? Take a look at the data sheet below for the STM 32 bit micro controller, using a STM32 wouldn’t even be my fourth choice to use. Voltage,current,temperature; all these parameters must be given. All that you would be doing with that schematic is blowing up your chosen MOSFET’s. Sorry...
  5. Delta Prime

    Alternating L/R 4-way flashers

    If you say it like that, I would think they’re almost identical descriptions, except for the DC part
  6. Delta Prime

    Full White Screen Used to Identify Glitches on BTT TFT35 with SKR Pico

    You are short circuiting the display and or driver. Poor design? Photos of your mount, please. What video? Teflon washers for the screw holes nonconductice ,standoffs or apply Heat shrink to the screws and or standoffs. An over zealous 3-D printer mount designer? To fix: Print out some high...
  7. Delta Prime

    Alternating L/R 4-way flashers

    No sir. The four way Flasher schematic circuit submitted will satisfy all of your conditions. I’m sure you will do well… You rewired a 1978 Buick. Considering your description of the modifications, the “now” four way railroad cross-buck inspired flashers; will be a real eyecatcher Please do… .
  8. Delta Prime

    Air Hockey Table Scoreboard help

    Welcome to Maker Pro. You’re the first one to ever say that.:) Make, model, year of your unit, please.
  9. Delta Prime

    Alternating L/R 4-way flashers

    Five pin automotive relay 12 V current of your choice. In the modified schematic below 87a Is normally closed for the right side Front and rear flasher. 87 normally open pin goes to the left side front and rear, and they will alternate right left instead of on off. This is only an example, but...
  10. Delta Prime

    Can an audio amplifier be used to transmit or receive radio signals?

    A professor once told me; there are three types of knowledge in this world. 1. What you know you know. 2.What you know you don’t know. 3.What you don’t know, you just don’t know. The third type is the most dangerous. As there is no way to prepare or defend against. I believe you have...
  11. Delta Prime

    Wire splice terminals ferrule crimp connectors - soft metal issue

    Or to keep split shots or sinkers from sliding down the fishing line? A type of backing barrel. But that’s a bit of a stretch… I think they’re just cheap butt connectors. :(
  12. Delta Prime

    Speaker capabilities of consumer products

    How funny, I was in the largest desert in the United States; celebrating Veterans Day whose claimed fame is called the monument for military veterans. located in very dangerous, deadly, rugged terrain, in the Sandunes “Glamis” . California. it is why I suggested you download an upload as I’ve...
  13. Delta Prime

    Bridgeless pfc boost charger switching implementation

    Is this homework? Bridgeless power factor correction can suppress or limit conduction losses that a input bridge rectifier introduces to the circuit. More information is needed. please provide a link & documentation of the information you have researched please.
  14. Delta Prime

    Speaker capabilities of consumer products

    Service manual can be downloaded for free Here. No. Yes. I’m in the outback, the boonies a desert actually very slow connection. Please download and upload the service manual for others so they may assist you.
  15. Delta Prime

    Speaker capabilities of consumer products

    passive speaker needs to connect to your projection TV power audio amplifier.Make model number please. A set of 5” round speakers is incapable to provide the whole range ( full range ) of audio frequency so loudspeakers consists of different driver units . Tweeter (for High-frequency range)...
  16. Delta Prime

    Panasonic TV turns on, displays then turns off.

    Thank you for your timely response. Your response is the exact point where Misinformation is born. Nothing is defined; there’s too much room for interpretation. I find it educational and intriguing. Thank you for your response.. Admittedly, I am just as bad; for I have left no academic...
  17. Delta Prime

    Panasonic TV turns on, displays then turns off.

    I never in my life have I heard caps on the cold side of a power board? What does that mean?
  18. Delta Prime

    Panasonic TV turns on, displays then turns off.

    Have you tried looking for the service manual? https://elektrotanya.com/keres That’s only one example,it seems you know how to solder, desolder it is inferred that you know something about electronic theory or once you found this serves manual. You wouldn’t know how to follow the instructions...
  19. Delta Prime

    Comedy Thread

    Q: What do you call a hardware developer who accidentally plugged 5 V logic to a 3.3 V UART port? A: A serial killer. :p
  20. Delta Prime

    USB Rx/Tx LED indicator

    My gratitude for the correction. I shall be more diligent in the future.
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