Help for parts

[mostafa yerang]

Hi dears

I have 2 pictures from an electronic board .But i dont know what are two pointed parts.
I need to make another board like that but i cant find that parts.

Please help me .
Thank you all

 

[davenn]

hi welcome

the black one is a diode .... what are the markings on it ?

the blue one may be a diode or a capacitor .... what are the markings on it ?

Dave

 

[mostafa yerang]

hi welcome

the black one is a diode .... what are the markings on it ?

the blue one may be a diode or a capacitor .... what are the markings on it ?

Dave

Dear Dave

Thank you for your replay
I found out that the blue one is a Diac db3.
But there is no mark on the black diod .
How can i know that model without mark? Can it tested with a multimeter?

 

[shrtrnd]

It sure looks to me like that black diode is marked.
Unsolder one end of it, and look at it.
It looks like it starts-out with the JEDEC '1Nxxxx'

 

[mostafa yerang]

It sure looks to me like that black diode is marked.
Unsolder one end of it, and look at it.
It looks like it starts-out with the JEDEC '1Nxxxx'

Unfortunately i cant unsolde it its working 24/7.
Is it possible to choose a higher one. randomly ?
What is your recommendation ?

 

[davenn]

so you are holding it in your hand whils power is still on it ?


D

 

[mostafa yerang]

so you are holding it in your hand whils power is still on it ?


D

Oh come on!
It was absolutely off when I was repairing its conveyor.
After that failure its working all day long.

 

[shrtrnd]

Next time the conveyer is down, unsolder one end of the diode, and check the part number, then you'll know.