Hi
This is my first thread, so i hope it isnt in the wrong category.
A friend of mine brought in a Proel Next 15 A active speaker. On power on the protect light doesnt turn off- it stays in protect mode.
There are two output transistors for the LF part, and appear to be short-ciurcited/burnt. I measured a short between 2 pins.
The thing is i cant find any info on what type transistors they are. The markings on them are SAP16 PO 3725 and SAP16 NO 3718.
Here are the pictures of the transistors/ICs.
![Click image for larger version
Name: 10336700_10203564798458812_3822079338660304028_n.jpg
Views: 1
Size: 4.5 KB
ID: 868478](filedata/fetch?id=868478&d=1649702139)
https://scontent-b-fra.xx.fbcdn.net/...93290207_n.jpg
![Click image for larger version
Name: 10336700_10203564798458812_3822079338660304028_n.jpg
Views: 1
Size: 4.5 KB
ID: 868478](filedata/fetch?id=868478&d=1649702139)
https://scontent-b-fra.xx.fbcdn.net/...60304028_n.jpg
![Click image for larger version
Name: 10365945_10203564798338809_8998441306493290207_n.jpg
Views: 1
Size: 6.3 KB
ID: 868479](filedata/fetch?id=868479&d=1649702139)
Any help will be greatly appreciated
This is my first thread, so i hope it isnt in the wrong category.
A friend of mine brought in a Proel Next 15 A active speaker. On power on the protect light doesnt turn off- it stays in protect mode.
There are two output transistors for the LF part, and appear to be short-ciurcited/burnt. I measured a short between 2 pins.
The thing is i cant find any info on what type transistors they are. The markings on them are SAP16 PO 3725 and SAP16 NO 3718.
Here are the pictures of the transistors/ICs.
https://scontent-b-fra.xx.fbcdn.net/...93290207_n.jpg
https://scontent-b-fra.xx.fbcdn.net/...60304028_n.jpg
Any help will be greatly appreciated
![Wink](https://music-electronics-forum.com/core/images/smilies/wink.png)
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