Anyone can help me please?

Question edited for clarity.
Question moved to a better category.

It is made in China and goes by a few names. One page says it has a manual. I don't trust any pages that have 'ALLOW' as a command!

https://www.google.com/search?q=sealup+Q22+scooter+manual

Q18

https://www.google.com/search?q=Junwei+Q18+manual

..

what happened when you tried the correct size fuse after the larger one?

http://www.skymediauk.co.uk/datasheets/manuals.php
Some similar models here, though not the exact one - it seems that for the Q19/LO4 they want us to buy the hard copy for £12.
But SkyMedia is the website for UMC (I think).
:)

25 to 30 amp fuses will work great, anything lower could possibly blow a fuse when a good bass note hits even if there is nothing wrong with the amp. Hope this helps.

Hopefully this helps

I think that the best way to do this is to re-write a customised firmware for HT Q20....codes are loaded, but when you turns the dvd off it loose´s the code and lock again....

There is a firmware update for your dvd player HT Q20....In samsung website, it will solve your problem!!!

http://www.samsung.com/br/support/download/supportDown.do?group=&type=hometheater&subtype=hometheater&model_nm=HT-Q20&disp_nm=HT-Q20&language=&cate_type=all&dType=D&mType=FM&vType=&prd_ia_cd=03030100&model_cd=&menu=download

do u have an crossover

If you are going to try to repair this yourself and can't find a schematic diagram, read the following page. It should help you through basic troubleshooting.

Amplifier Repair Primer

If you have questions, let me know.

I would check the RCA preamp wires connecting the stereo to the amp. If these are loose or broken, it could cause you to lose your sound.

Does the amp show signs of life, such as clicking on, an LED turns on, or anything like that?

Has anything else changed between the time it worked and didn't work?

If you've got a standard 4 speaker system (2 front, 2 rear), your best option is to connect both left speakers to the left channel amp output and both right speakers to the right channel amp output. The only thing you lose is the ability to fade the speakers front to back.