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jakdedert
 
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Default blown fuse in sub-woofer

Hey, there's always the old 'smoke test.' Replace the fuse with a solid
piece of metal...1/4" bolt works well.

Turn it on, stand back and plug it in...25' extension cord and some sort of
blast shield (at least 1/2" plexiglass is advised) are good accessories for
this test...whatever component(s) blow(s) massive amounts of smoke--or
explodes--is likely the culprit. Never mind that you'll also take out
several associated parts as well. Most'll be nicely 'marked' with
scorches...makes for easy identification of blown/defective components
(although hinders identification for replacement purposes)...some may even
remove themselves from the circuit board--explosively.

At this point, find/indentify/replace all the missing/charred pieces and
power up with a proper fuse...above safety accessories are advised at this
stage as well. Also, some traces on the circuit board itself may now be
missing--replace with at least 16 gauge wire.

If it blows again, you missed something...


....OR, you can use accepted troubleshooting techniques, ID the problem which
is causing your fuse to blow and repair same. Better yet, get some
assistance from someone who knows what they are doing...like a repair
facility.

Or chuck it into the trash.

Your choice.....

jak

"Tweetldee" wrote in message
...
"heckubiss" wrote in message
...
"Gary Lightfoot" wrote in message

...
heckubiss wrote:

anyhow, i replaced the fuse and turned the power on but the power
light still does not light up and it doesnt play. what else should
I look for?

Maybe an internal fuse has gone?

Unusual, but you never know. It's probably a small glass or ceramic
one if it is, but you'll have to take the sub apart (take the amp from
the box) to see. You'll also get a chance to seee if there are any
obviously burnt out components that may have gone as well.

Gary.

--?
www.g-lightfoot.pwp.blueyonder.co.uk


I noticed that after replacing the fuse, plugging the power cord, then
turning on the amp, with no imputs the fuse immidietly gets blown
again

I opened the amp and saw nothing suspect.

how could this be!??



It's pointless to keep replacing the fuse and expecting it to start

working.
Whatever is making the fuse blow hasn't been fixed. Until the fault is
repaired, the fuse will continue to blow. It ain't gonna fix itself!!
Most of the time, faulty electronic components look just like good
components, that is there is no visible difference between good and bad
components (unless the component overheated and/or burned). You need the
proper test equipment and know how to use it in order to distinguish

between
good vs. bad components.
You need to take the advice of an earlier poster and take the unit to a
qualified repair shop. They should have the equipment, knowledge and
experience to properly troubleshoot the unit and replace the defective
components. Only then will the fuse stop blowing.
Cheers!!!
--
Tweetldee
Tweetldee at att dot net (Just subsitute the appropriate characters in

the
address)

Time is what keeps everything from happening all at once.