Any advice where can I find micro SMD probe tip for Rigol oscilloscope ? Can't find anything online and factory one is just too fat to fit in some tight spaces on logic board. Thx
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So i got this tv from my neighbor, when it wasn't working right for him,, he purchased another tv and gave his old to me.
the color is all outa wack, like the settings have been corupted,
I've already done a firmware search using the wifi connection update from the tv and it didn't find any new update so it's got the most recent version.
so
The issue is i can't get into service mode or factory mode, tried resetiing it from user mode and it didn't change anything.
when i bring up the menu and type the pass codes to access either mode the menu disappears... -
Does anyone have an idea of what might be the issue with my 3050 micro? I have tried replacing new cmos battery but still the same
I am not sure if its the powersupply that I'm using is the issue since its the original powersupply. its a laptop powersupply with the same specifications with the 3050 micro so i guess it should be fine.
i also tried replacing the bios but with no avail, everytime i try another bios it gives a different blinking lights
Any recommendation on what I have to do next? Thanks in advance -
Hello.
I have jut got my first analogue oscilloscope. An Isotech 620 20MHz.
I want to learn how not to damage it, and I found instructions on the internet obscure.
They talk about ground, earth, floating ground, this, that....
But they don't actually say anything anything useful so far.
I want to know:
Don't connect exactly this to exactly there or it blows up.
For example, I am tracing a signal from a function generator in an audio amp, or testing for voltages in different parts of a circuit.
I want to know what not to connect... -
Samsung have been using this style LED connector for few years now
Usually good idea to test the LEDs before opening the panel to change them. I do this without the PSU stil connected. With this connector (white one) have to jam the LED tester probes in the very narrow thin slot where the PSU blade style male prong inserts into. I've done this on many Samsungs without problem until today...
The female terminal inside the white connector has fragile fingers that grabs onto the male blades on the PSU's black connector. If the LED tester probe spreads open... -
TV: JVC LT-43C888 (purchased in 2018). This is a smart TV with Netflix, Youtube, Freeview and other applications via 'Viewd' app store
Problem with TV:
- Netflix stopped working so i tried to do factory reset from the TV menu.
- I confirmed on-screen but the factory reset did not happen even. It did not take me to 'first-time installation' screen as mentioned in the manual.
- After waiting for some time, the TV went into a boot loop.
- JVC logo comes on the screen and LED light flashes for some seconds, then it reboots again and the same thing happens
...
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