View Single Post
Old 12-31-2018, 12:45 AM   #12
Badcaps Veteran
ant3202's Avatar
Join Date: Jun 2006
City & State: Singapore
My Country: Singapore
Line Voltage: 230V 50Hz
I'm a: Knowledge Seeker
Posts: 209
Default Re: Altec Lansing MX5021 silent, need Schematics..

Originally Posted by theATeam View Post
I know this is an old thread, but it is the closest thing to a solution, i have been able to find.

I have two sets of the Altec Lansing's MX5021. One of them doesn't work. The other one still works.

There are two ICs located on the back of the PCB. The first one is ST TDA7433D located at U8, which is partially melted on both of my speaker-sets, but the label is still readable.

The second one is unidentifiable, since it has melted/ deformed to a degree where the model-number is unreadable.

Could anyone tell be the model-number of the IC located at U13 on the back of the PCB?

This would really make my day. I love theses speakers, but i can't find any schematics or high-res pictures of the PCB online.
Hi and what issues on the faulty one?
No power or no sound?

U13 - ST 074C
ant3202 is offline   Reply With Quote