Reddit reviews Crenova MS8233D Auto-Ranging Digital Multimeter Home Measuring Tools with Backlight LCD Display
We found 7 Reddit comments about Crenova MS8233D Auto-Ranging Digital Multimeter Home Measuring Tools with Backlight LCD Display. Here are the top ones, ranked by their Reddit score.
【100% Safety Assurance】Built-in Double Fuse. Overload Protection on all ranges.【Auto-ranging Tester】Accurately measure AC/DC voltage, AC/DC current, resistance, frequency, continuity, diode, etc.【Backlight Display】 Designed with 3 1/2 digit LCD display and 'Backlight', showing the reading clearly in low light areas.【Special Points】 Data Hold, Maximum Value Hold, Function Switching, Auto Power OFF. Sampling Speed: 3 times per second.【9V Battery】DON'T forget to install the 9V battery before using the digital multimeter, or it will go on strike.
Welp start with the absolute basics. Check the fuses for the head lights. Then check the bulbs. If both of those are ok. Then I'd use a multimeter to check for power to the bulb in the connector when the headlight switch is pulled. If no power at connection. You need to go under the dash and check for power to the switch. Power to the switch good? Then switch is bad. There could still be wiring to the headlights that's been damaged. However that's pretty rare for the age of our cars.
The end.
Multimeter that's good and inexpensive.
https://www.amazon.com/Crenova-Auto-Ranging-Multimeter-Measuring-Backlight/dp/B00KXX2OYY
How to use a multimeter.
https://www.amazon.com/Crenova-Auto-Ranging-Multimeter-Measuring-Backlight/dp/B00KXX2OYY
https://youtu.be/TdUK6RPdIrA
This is the tool
https://www.amazon.com/Crenova-Auto-Ranging-Multimeter-Measuring-Backlight/dp/B00KXX2OYY
How to use it
https://www.boatus.com/magazine/2016/december/electrical-troubleshooting-using-a-multimeter.asp
If you’re not comfortable with electricity, here’s a simple analogy
https://www.windows2universe.org/physical_science/physics/electricity/circuit_analogy_water_pipes.html
With the power off, disconnect the heat bed's power cables from the logic board. Take a multimeter and measure resistance across the positive and negative power wires, it should measure 1.2 ohms.
If those are fine, measure the resistance across the thermistor (the temp cable). It should measure around 100k ohms.
If any of the measurements show open then move the measurement up the bed itself to see if it's the cable or the bed that's broken.
If you don't have a multimeter, order one from Amazon or go to your local auto parts store and buy one. It doesn't have to be fancy, this one is fine.
This one looks pretty good for $20
A decent autoranging multimeter can be had for ~$20 these days. From a safety and usability standpoint, it’s important to make sure that both the multimeter and leads have a CAT II or III rating and both ports have user replaceable fuses. Even in a computer there are caps that can give you a bad day...
I have a version of this meter that I got in college, and have since put it through its paces in control panels as an automation engineer. It’s held up really well, and I have yet to change the battery. The autoranging is not as quick as a fluke, but more than sufficient for anything I’ve needed.
For electronics, a set of alligator clamp leads and tweezer leads can also be really helpful.
You want 5v there with just the battery. Those are the output pins for the 5v voltage regulator on the pdb. They step the 14v down to 5 and supply it to the FC. The FC has a few regulators too, but we need to start at that point and work our way out.
The insulation is stripped a bit more than it should be. If the wires got flexed enough they could have shorted. Does it work right now if you plug the battery in?
You also said you had to replaced parts right? That could answer some questions.
Get that meter! It's a good tool for everything, including quads. This one should do.
So i think my multimeter doesnt have enough ranges to test the variety of different settings on.
i ended up giving up. I dont think my multimeter does is able to read the different sizes or idk but I am getting a lot of misleading things and my head hurts from organizing by color. Can anyone recommend if one of these will be good?