Any internal slow-blow fuse can be replaced with one of the correct value. Fuses do seem to have a finite life, so occasionally you can just replace the blown fuse with an identical one and all will be well. However, fuses are protection devices , and it's more likely that you have a short circuit or defective component in your VS3251 that's causing it to draw too much current , and the internal fuse is blowing to prevent further damage. ie the fuse blowing is the symptom not the problem. Never replace fuses with ones of a higher current rating. Slow-blow fuses have the suffix T (for "Time Delay", and normal ones have F ( for "Fast"). With the street price of the VS3251 , a commercial repair is uneconomical
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CD jumps all over the place? DVD film stops playing and picture breaks up or freezes then goes to another scene? Just bought a second hand disc and it does that? Then you might have got a scratch or more on the disc. Well now you don't have to throw them in the bin and buy a new one. And it won't cost a penny to fix them!!!! Unless you have false teeth!!
It's easy to fix them too. First look at the underside of the disc, remember the label side doesn't play anything. You might need to catch it in the light to show any marks. If you can see marks and they won't come off with the cleaning sprays you can get for discs, it's a scratch!
To remove them get a tube of TOOTHPASTE - yes that's what I said! And apply a small amount to the discs where any scratches are. Then with a toothbrush, soft bristle type, gently work the paste on the disc. This should remove the mark. Rinse with cold water and dry the disc off with a paper cloth. If you look at it again catching the light, the disc should show no sign of the mark, but you will see like a smudge in the polished surface. This will not affect the playing of the CD or DVD. If you still can see a scratch repeat the process till it goes.
Once finished clean the disc with a spray or the JML disc cleaner, to remove any trace of the cleaning process.
This process will only remove surface scratches from the plastic coat of the disc, anything deeper and the disc is no good.
If the disc has a paper label (IE home made) you will have to ensure that the label doesn't get wet, or you might have to replace the label.
I have cleaned many discs this way and so far they still all play wonderful.
I don't know if you can do this with Blue-Ray discs, as I don't have one yet.
These sound like they a JBL speaker. 1. You will need the impedence and diameter spec and the Hz (hertz) specifications to get a replacement set. you can call JBL Altec-Lansing is the company that manufacturer this series of speaker.\ On the back of you speaker cabinet should be a phone number to the company or check the user manual that you received with the speaker system and they should be able to give full information on how to replace the speaker in question or where to have it repaired. The cabinet is glued together and will need a cabinet expert to disassemble. Contact JBL for more information.
first you have to check any short circut , that may be inside of sub woofer unit .
find and sove any short circutry and then only replace the fuse with same rating.
and before you switch on it once again recheck any meterial shored with electronics pcb.