Diode help needed

[CraigR]

Not sure where to post this but I need some help fining info or the actual part number for a diode I found to be bad. I'm working on an arcade monitor chassis and the board is a JW-RODO-888A and I found a bad diode in this cluster of 4 but I would like to replace all 4 and the only numbers on it are 20D then under that is a "4" then under that is "3B" I can't find anything and even went on live help at digikey. Any help is appreciated!

[SteveNielsen]

Re: Diode help needed

You got a pic?

[junktv]

Re: Diode help needed

Live help is never any help.

[CraigR]

Re: Diode help needed

You got a pic?

It's just your standard looking one like this"stock" picture.

[stj]

Re: Diode help needed

what monitor is it?

[CraigR]

Re: Diode help needed

It's an odd one I have never run into before there is a sticker on the tube that says Pentranic and A89PNT30X

[SteveNielsen]

Re: Diode help needed

Should be moved to appropriate forum?

[stj]

Re: Diode help needed

pentranic - thought so.
like this?

does this schematic match up with the parts?

[kc8adu]

Re: Diode help needed

circle them on the pic.
4 in a group near the ac input are just common diodes.i would use 1n5408 as i stock those.
thats a 3a 1kv gp.
replace all 4.
a89 crt is 35"!
thats a bigassed video game!

[stj]

Re: Diode help needed

probably a "candy cab" japanese unit.