Atec AV420D No Standby

[anotherdude]

Re: Atec AV420D No Standby

so it's more than likely caps rather than fets?

[tom66]

Re: Atec AV420D No Standby

A FET would not fail intermittently.
You can still do a check for cold solder joints.

[anotherdude]

Re: Atec AV420D No Standby

i've got a fair few cable boxes and old boards laying round, might see if i can match the caps and replace to test at least then order some pannys at a later date

tom once again you've been more than helpful, top guy!

[tom66]

Re: Atec AV420D No Standby

I really wouldn't advise that. Old capacitors can "form" to a voltage, which means they can fail to work correctly in a new circuit, even if they worked in the old one. Some capacitors can also dry out if they are left for a long time which may mean they fail too. Just wait a few days for those caps -- it shouldn't cost more than a few pounds and surely all the time soldering/resoldering caps is not worth it.

[anotherdude]

Re: Atec AV420D No Standby

I really wouldn't advise that. Old capacitors can "form" to a voltage, which means they can fail to work correctly in a new circuit, even if they worked in the old one. Just wait a few days for those caps -- it shouldn't cost more than a few pounds and surely all the time soldering/resoldering caps is not worth it.

i'll wait then, i do have some new caps already but there all big ones so guess there not the right ones

i'll check for colder solder joints at least anyway

[tom66]

Re: Atec AV420D No Standby

You don't have to replace the 450V cap though.

[anotherdude]

Re: Atec AV420D No Standby

You don't have to replace the 450V cap though.

oh right my mistake, think i've narrowed it down to 2 100uf 50v caps

[anotherdude]

Re: Atec AV420D No Standby

You don't have to replace the 450V cap though.

tom just a quick one to say thanks again

got the new caps today fitted and tv works as it should now

have a good christmas and a even better new year all the best

[tom66]

Re: Atec AV420D No Standby

Glad to hear. Have a good Xmas.

[matyka]

Re: Atec AV420D No Standby

Hello,I have a similar problem just I have a standby light on all the time ,could you help me to fix the board ,thank you in advance .