Contact not perfect with my Multimeter Voltmeter

[Marty33]

Hello all.

For test my Gameboy advance motherboard, i use my Multimeter Voltmeter.

Without contact, he indicates 1. If i touch the black and red, he indicates 0.

I test on the motherboard. I place the black on the Ground, the red on the good pin and my Multimeter indicates : 1850

I push the gameboy's button, my Multimeter indicates : 030

The motherboard is dead ?

Big thanks for your help.

[Marty33]

Help

[moooarcuuuus]

Maybe you should read the instruction manual. What is 1850? Volts, watt? What "number" is between controller vcc and gnd?

On what controller? Rpi, ARM, AVR?
If the pin is an input pin on rpi, it sounds he is high with pullup (not pressed == vcc). If pressed, gnd is on the input, it sounds low. Seems all right with the pin and button.

[Marty33]

Big thanks for response.

I made better explication

I place the Multimeters on this :


I have "1" on the screen.

I place the Black probe on Ground. I place the Red probe on the good pin button (on the PCB). I obtain "1850".

It's normal at this moment ?

If i push on the "X" (for exemple) button, the screen move gradually to "030".

It's normal i haven't "1" when i don't press and "0" when i press ?

Big thanks

[moooarcuuuus]

That is wrong.

Step 9: https://www.ifixit.com/Guide/How+To+Use ... eter/25632

https://learn.sparkfun.com/tutorials/ho ... multimeter

[sumand]

@Marty33 Did you able to solve your contact problem? I was checking a few tutorials but unable to solve. Actually, it is killing my time. Thus, I would like to hear from you. I bought a Mastech multimeter according to this website suggestion. But, I was facing problem to contact properly with my Multimeter Voltmeter.

[Sindhu002]

I bought a Extech MN35 multimeter according to this website suggestion. Now iam facing problem with my multimeter.