Electronics Forum

Electronics Circuits & Projects discussion forum. Get help with electronics.

Skip to content

[Return to Electronics Circuits Page]

need help with a power supply

New to electronics? Don't know where to start. No problem! Post your questions here.

Moderator: pebe

Post a reply

need help with a power supply

Postby Nick13 » Wed Feb 19, 2014 4:55 am

hi, I have a subwoofer that got hit by a power surge and need to replace the step down transformer, I have the schematic which I am attaching.
I would appreciate if somebody give me a hand with this.

thank you.
Attachments
resubwooferhelp.zip
power supply is in main board pdf
(1.23 MiB) Downloaded 900 times
Nick13
 
Posts: 1
Joined: Wed Feb 19, 2014 4:15 am
Top

Re: need help with a power supply

Postby Sebi » Tue Feb 25, 2014 12:02 pm

Hi!

Your equipment contain STK4040 = 70W output power, with + - 45V on buffer capacitors.
You need a min.100..120VA transformer with 2x30..32V secondary winding.
Sebi
 
Posts: 5
Joined: Sat Oct 08, 2005 6:53 pm
Top
Post a reply

Return to Electronics newbies



Who is online

Users browsing this forum: No registered users and 5 guests



Powered by phpBB® Forum Software © phpBB Group