Polaroid FLM-3232: Help Identify Diodes in PFC Cct

[martyparish]

I found a cracked diode and there are no labels that I can see. There's a yellow band and a black band, however almost every glass diode on the board looks like that, so I surmise that it's not a identification code???

I am attaching an image of the board and an image of the "Typical Application Circuit". I'm not a tech, so I am having a hard time comparing the circuits and figuring out the proper diodes to install.

Can you guys have a look please?


Thanks!

ps. this old thread has gotten me to this point https://www.badcaps.net/forum/showth...t=27692&page=2

[newtothis]

Re: Polaroid FLM-3232: Help Identify Diodes in PFC Cct

Can you give me the model number off the board please

[martyparish]

Re: Polaroid FLM-3232: Help Identify Diodes in PFC Cct

Part Number:
846-240-H3CZZS
Board Number(s):
S0804-0901

http://www.shopjimmy.com/proview-846...upply-unit.htm

Thanks for the help!

[martyparish]

Re: Polaroid FLM-3232: Help Identify Diodes in PFC Cct

I'll give this one bump, in hopes that someone knowledgeable can have a look. Thanks

[xyloeye]

Re: Polaroid FLM-3232: Help Identify Diodes in PFC Cct

I sent you a pm (because the thread was old) a couple of weeks ago about the same problem you're having. I didn't see this thread, only the original. Anyway, I have the same psu with 24v present until I plug in the main board. Then the inverter voltage goes to .09v and the main board supply to 16v. I thought the main was fried so ordered a replacement from Shopjimmy. The new board didn't help. Now I'm thinking the psu is getting swamped by the load or maybe too much ripple. Haven't had a chance to get back to it. Did you ever figure anything out?

As far as the diodes, I'm pretty sure the yellow band indicates that they're zeners. I don't think you can tell the voltage from the markings though. These come in 2.4 to 75v rating!