Has Anybody seen a Buzzer Project that i can test broken Traces on a Mainboard

[Audronic]

Hi All

After fixing a Motherboard that had so many Via's broken or missing

I was looking for  a Buzzer Project that i can test broken Traces on a mainboard (Motherboard)
MUST be HI impedance Input so i don't kill the Motherboard.

I have a Hearing Problem, my multimeter is too soft (for Me)

I was wondering if there is something on Pcbway -- etc

Thanks

Keep Safe

Ray

[Brocky]

i made a simple one using a 18650 battery holder, old probe leads, LED and current limiting resistor..
or u could use use an op-amp and watch batteries to drive an LED as an indicator.

you could even mod ya meter n wire a LED to a buzzer

[Bryce]

Hi All

After fixing a Motherboard that had so many Via's broken or missing

I was looking for  a Buzzer Project that i can test broken Traces on a mainboard (Motherboard)
MUST be HI impedance Input so i don't kill the Motherboard.

I have a Hearing Problem, my multimeter is too soft (for Me)

I was wondering if there is something on Pcbway -- etc

Thanks

Keep Safe

Ray

Design it yourself: A continuity tester doesn't have an "impedance" like a DMU or scope, because you're not measuring on a live circuit. You just need to limit the current being sent through the trace. Use a standard 555 circuit to drive your buzzer / LED or whatever indicator you choose. Switch the 555 circuit on with a simple PNP transistor switch circuit. The negative of the battery would then be one of the probes and the input of the transistor (which would already have a current limiting resistor) is the other probe. So your tester is only putting a few milli-amps through the trace.

Bryce. 

[robcfg]

Would it be feasible to replace the buzzer in the multimeter for a led?

Given that you have a hearing problem, a visual cue would better fit you.

[Bryce]

Would it be feasible to replace the buzzer in the multimeter for a led?

Given that you have a hearing problem, a visual cue would better fit you.

If you want to make it really cool, you could use the vibration motor from an old mobile phone and mount it inside the probe handle.

Bryce.

[Brocky]

Would it be feasible to replace the buzzer in the multimeter for a led?

Given that you have a hearing problem, a visual cue would better fit you.

If you want to make it really cool, you could use the vibration motor from an old mobile phone and mount it inside the probe handle.

Bryce.

the misses might have a few questions.... wait what?!

that is a cool idea tho!

[Bryce]

Would it be feasible to replace the buzzer in the multimeter for a led?

Given that you have a hearing problem, a visual cue would better fit you.

If you want to make it really cool, you could use the vibration motor from an old mobile phone and mount it inside the probe handle.

Bryce.

the misses might have a few questions.... wait what?!

that is a cool idea tho!

He'll just have to make two of them, so he doesn't have to wait for his turn.  

Bryce.

[Audronic]

. Use a standard 555 circuit to drive your buzzer / LED or whatever indicator you choose. Switch the 555 circuit on with a simple PNP transistor switch circuit. The negative of the battery would then be one of the probes and the input of the transistor (which would already have a current limiting resistor) is the other probe. So your tester is only putting a few milli-amps through the trace.

Bryce.

Hi Bryce

Ok I will go down the 555 Road and make up something

Thanks for the thoughts

Keep Safe

Ray