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How to replace internal cathode fuse. (with pic)

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GlowinPontiac

Joined: Mar 04 2004
Posts: 5959
Location: Central CT


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Post Thu Oct 20, 2005 8:48 pm

Ok this was done with the older light blue cased cathode kits. I'm not sure if it applies to the flowlighting cathodes.

Open up the transformer case. Some cases simply snap apart and are very easy to work with. Some seemed to be glued and will require you to carefully pry them open to get at the circiut board inside. Also, sometimes the circuit board is glued to the bottom of the case and this may have to be carefully pried out as well.

On the board inside you will see a small glass tube sticking up at an angle or possibly laying flat. this is your fuse. (it is boxed in in red in the pic)



You really cant buy replacement fuses for this so you have to improvise, and replace it with a piece of wire.
Take your soldering gun and remove the blown fuse from the circuit board.
After you get the old blown fuse out, take a small piece of wire and put it in the holes that the fuse came out of and solder it in in place of the fuse you took out.
Your transformer should now work again.


Just beware that now you have no internal fuse protection! Now, if you hook the transformer up with the polarity reversed and with no internal fuse it may very well start smoking or catch fire so be careful if you do this.[/img]
Rags

Joined: Apr 21 2005
Posts: 3527
Location: dayton


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Post Thu Oct 20, 2005 9:02 pm

nice. i should check some of my dead trannies for that. but mine usually catch on fire before they die.
stasis-

Joined: Jun 05 2004
Posts: 4517
Location: Texas!


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Post Fri Oct 21, 2005 5:42 am

that cant be safe
paul

Joined: Sep 18 2005
Posts: 544
Location: Not here


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Post Fri Oct 21, 2005 6:29 am

is that the only problem? that it might start on fire with the polarity reversed? that's a relief!!

i did the wire jumper thing for the transformer inside my computer, but I've always been worried that i'm going to damage my thode elements. i guess i don't need to worry anymore.
king_midas

Joined: May 25 2004
Posts: 609


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Post Fri Oct 21, 2005 7:38 pm

so when I **** up and reversed the polarity, all it does is blow the fuse?
Icedoutjetta

Joined: Sep 18 2005
Posts: 814
Location: Guelph Ontario Canada


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Post Mon Oct 31, 2005 8:06 pm

yeah man all it does is burn the fise inside but i started to think about this topic and i had a blown trany and i thought why just place a piece of wire in there and risk it why not put in a new fuse


ill try and have the pics up from my blown tranny and new fuse as soon as i get my cam back from my friend

why take the risk just put in a new fuse and theres an easier way of doing it then to put the peice of wire across it will all be shown



i am doing this just me trying to get some respect round here lol
GlowinPontiac

Joined: Mar 04 2004
Posts: 5959
Location: Central CT


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Post Mon Oct 31, 2005 8:16 pm

what amp fuse do they have in there originally?
none of mine were ever marked.
king_midas

Joined: May 25 2004
Posts: 609


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Post Mon Oct 31, 2005 9:15 pm

I'mgoing to guess 2.5 A
GlowinPontiac

Joined: Mar 04 2004
Posts: 5959
Location: Central CT


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Post Mon Oct 31, 2005 9:32 pm

idk that seems a bit high. they only draw around half an amp while running. maybe 1amp fuse?
phil do you know this?
Avernus

Joined: May 13 2005
Posts: 483


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Post Mon Oct 31, 2005 9:45 pm

well if you reverse the polarity it should blow a 3 amp fuse (i would imagen) I'm not sure of what is going on when you reverse the polarity but i'm guessing it wont stay under 3 amps. could someone maby explain what is going on when your reverse everything?
GlowinPontiac

Joined: Mar 04 2004
Posts: 5959
Location: Central CT


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Post Mon Oct 31, 2005 9:52 pm

im not sure what exactly happens when you reverse the polarity.

if someone wanted to sacrifice a tranny you could solder a wire in place of the fuse and then hook it up reversed and see what starts melting/smoking.

just be sure to have a fire exitinguisher handy if you decide to do this. icon_cool.gif icon_lol.gif
Icedoutjetta

Joined: Sep 18 2005
Posts: 814
Location: Guelph Ontario Canada


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Post Tue Nov 01, 2005 2:41 pm

lol imnot going to sacrifice my trany but im gonna replace the internal fuse with a 1A fuse for now and then reverse polarity to see if it works ok without the trany smokin soo ill be on later with pics of the new fuse
Icedoutjetta

Joined: Sep 18 2005
Posts: 814
Location: Guelph Ontario Canada


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Post Tue Nov 01, 2005 5:58 pm

ok guys i said i wouldnt sacrifice one of my tranies but i did anyway icon_cry.gif but its alright atleast now i know what makes the smoke

User posted image


after i burned the trany i started to take the power wire and touching everything on the board with it and i even melted some other things

User posted image

if you look closely on the right side of the pic were the Z key is yo can see the smoke i tried to taekk the pic as fast as i could
kamil_lover

Joined: Nov 01 2005
Posts: 4


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Post Tue Nov 01, 2005 6:12 pm

c'est trist que sa ta couter d'argent, mais sa a l'air que tu apprend mieu d'ce fašon, lol, amusez-vous mon beau icon_wink.gif
Losing quickly

Joined: Apr 26 2005
Posts: 5706
Location: SC


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Post Tue Nov 01, 2005 6:15 pm

kamil_lover wrote:
c'est trist que sa ta couter d'argent, mais sa a l'air que tu apprend mieu d'ce fašon, lol, amusez-vous mon beau icon_wink.gif



What the flip????????????????????
Icedoutjetta

Joined: Sep 18 2005
Posts: 814
Location: Guelph Ontario Canada


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Post Tue Nov 01, 2005 7:01 pm

i have no idea what that means but yeah she loves me icon_cool.gif

anyway heres the linx to my CC thing

https://www.oznium.com/forum/topic8176

i just didnt want to mess with your post GlowinPontiac so i made one on my own hope ya dont get ****


i love ya elle
GlowinPontiac

Joined: Mar 04 2004
Posts: 5959
Location: Central CT


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Post Tue Nov 01, 2005 7:22 pm

if you replace that transistor it should work fine.

well up until you starting zapping everything icon_cool.gif lol
Icedoutjetta

Joined: Sep 18 2005
Posts: 814
Location: Guelph Ontario Canada


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Post Tue Nov 01, 2005 8:09 pm

yeah i did replace it with a normal fuse like i showed in my link but for some reason it smoked anyway thats the first time that happened but eh i had some friggen fun but you should see my desk lol theres burn marks now

does anyone know what that means ( its in french and i dont speak it lol )


I LOVE OZNIUM
GlowinPontiac

Joined: Mar 04 2004
Posts: 5959
Location: Central CT


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Post Tue Nov 01, 2005 8:59 pm

babel fish translation:

Quote:
it is trist which its your money couter, but its A the air which you mieu learns from this way, lol, have fun my beautiful
Icedoutjetta

Joined: Sep 18 2005
Posts: 814
Location: Guelph Ontario Canada


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Post Wed Nov 02, 2005 3:15 pm

wow thanks man but i think ill just ask her what it means
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