Echo not working... Help please

Hello, I just got my DJM 400 and I wanted to try it out...

I accidently plugged my laptop into PHONO / Line plugs and it made quite alot noise for like 1 sec but I turned it down immediately. (Power off)

After I read manual I plugged my laptop into CD input and tried how it works but I figured Echo effect isn't working. Did I maybe accidently burnt echo down while plugging into PHONO / Line inputs or?

Note that everything else is working, all other effects, eq's everything else... Please help.