Repair Fence Energizer SS-1000E Fi-Shock

[stj]

Re: Repair Fence Energizer SS-1000E Fi-Shock

smash the faulty one open and check, they arent always wirewound.
i have seen the cement box type with ceramic/metal-film resistors in them a number of times.
usually where you dont want inductance or any magnetic issues.

[R_J]

Re: Repair Fence Energizer SS-1000E Fi-Shock

https://www.digikey.com/products/en/...=1&pageSize=25

[stormy1777]

Re: Repair Fence Energizer SS-1000E Fi-Shock

ah, ok, sorry our posting crossed, funny it did not alarm me to reload page due to new posting... Thanks, will go with wirewound and open it up later on..

[stormy1777]

Re: Repair Fence Energizer SS-1000E Fi-Shock

I thought failed resistor is "Ceramic Cement", but can't find it in such lists:

https://www.lifewire.com/types-of-resistors-818848
https://en.wikipedia.org/wiki/Resistor

Is it same as wirewound ? just maybe not wound so much, so in effect the construction is similar?

It might be that the shocker was mis-used, maybe someone put a tool or something that caused the fence to constantly "shock" the tool, not sure, it's very told too

[R_J]

Re: Repair Fence Energizer SS-1000E Fi-Shock

Yes those are wirewound, and the replacements will be wirewound. If you opened it it would look like this inside

[stormy1777]

Re: Repair Fence Energizer SS-1000E Fi-Shock

sorry, yeah, i meant "open", not short!! sorry.. so you mean the "wirewound" type are OK as a replacement to this ceramic cement one? I tell u, I'm running around the house measuring resistance and found many objects (rocks, stones, blocks of wood, etc.) with 360Ohm, so tempting to hook them up just kidding may find an old part over weekend.. Thanks, will keep posted!

[R_J]

Re: Repair Fence Energizer SS-1000E Fi-Shock

Not a "short" in wire, the resistance wire goes "open" and YEs those resistors are wirewound type.
Digikey usually has cheap shipping and for $5.00 you can get 10. I can get next day shipping to Canada ($8.00 cdn) so it should be even faster for you

[stormy1777]

Re: Repair Fence Energizer SS-1000E Fi-Shock

Right, R_J, no visible sign of heat/burn/wear..definitely a short in wire though.. I'm eager to fully dissect it once a replacement arrives.. it seems to be some sort of "cement" poured (from bottom) into a ceramic cast, so it's hollow and inside is poured.. anyways... maybe there's a forum for how-to-fix-cement-resistors.net

looking around on all power supply boards, i don't have this kind of stuff, only 0.5 through 2W resistors..

I'll try to get either of these two, although they say 'wirewound' by photo they look similar, any thoughts?

Xicon, 280-CR10-360-RC
Yageo, SQP10AJB-360R

will take some time, but I'll definitely report back.. so hang on for a happy ending hopefully, or more discoveries

Stormy.

[R_J]

Re: Repair Fence Energizer SS-1000E Fi-Shock

Sometimes the wire inside the resistor just breaks due to heat stress, If you look at the other side it may show some cracks in the cement, but not always. Seen these go open alot many years ago in tube tv's

[stormy1777]

Re: Repair Fence Energizer SS-1000E Fi-Shock

Who would've thought that such a brick can get spoiled esp when posting on a 'badcap' forum it looks like a ROCK for heaven's sake hm... if u only knew all the things i'm fantasizing as replacement parts for this resistor..... This could be a good start for a movie ok, later..

[eccerr0r]

Re: Repair Fence Energizer SS-1000E Fi-Shock

Well, I guess measuring the voltage is easier than desoldering and measuring resistance anyway We found the bad resistor without a soldering iron!

You can probably substitute something close by for a test but not knowing the characteristics of the coil I don't know. The duty cycle seems like the average power dissipation would not be high at all.

But it failed! And resistors usually don't fail!

Not sure if it's simply construction defect but odd that I doubt design problem... then again the resistors show no heat damage which usually cause their demise.

As a test you probably can go up to 470Ω but safest to keep wattage. Higher wattage resistors unfortunately significantly goes up in costs so likely you don't want to go past 10W.

BTW - what parts *do* you have that you could use?
If you have like two 180Ω 5W you could hook them up in series and you're done, or perhaps two 680Ω 5W resistors and hook in parallel and be fairly close.

[stormy1777]

Re: Repair Fence Energizer SS-1000E Fi-Shock

I guess you missed post #21

NO WAY!! you back dated that post - no? you didn't? CRY... CRY....

OK: I do vaguely remember i think.. such is life, u are taught to pay attention.. to the little things. Thanks R_J!!! I'll report back

Stormy.

[R_J]

Re: Repair Fence Energizer SS-1000E Fi-Shock

I guess you missed post #21
Digikey carries the 360Ω 10 watt, I would just leave a bit of room (1/8 inch) between the board and the resistor for a bit better heat circulation

[stormy1777]

Re: Repair Fence Energizer SS-1000E Fi-Shock

ok, just for the record, pulled the bad one, R2 (the one closer to center of board), measuring resistance out of circuit gets an *OL* on DMM.. so, that is the smoking gun - some short there! Will try to find a new one; that may take time Thanks, I'll keep posted of course. Here is a closeup photo of the two friends.

if you have any tips on what can change, like with capacitors i know i can usually go higher voltage as we did with the 100v@22uF, here I bet it can go higher Watts , but keep the 360Ohm and keep it ceramic so it can deal with the load i guess.

Stormy.

[stormy1777]

Re: Repair Fence Energizer SS-1000E Fi-Shock

How about this:

what's the voltage across the power resistors 32->33 and 26->27

Might well also take the voltage across 2->3 for grins. Voltage from 22->4 might be helpful but as it's a transition from ac -> dc, numbers might look screwey.

Here is a very fun update, making huge progress, thanks to all 'ya all

1) Replaced both D1 & D2 with HER-208, nothing blew up, and C1 charged like a turtle.. no change.

2) The measurements of 22->4 were given earlier, it is roughly 42-50VAC, in VDC it jumps around 35VDC.

3) 2->3 is 25 VAC

4) 32->33 is 10VAC

5) now the kicker i think... 22->27 comes at 110 VAC!!!

so, maybe that ceramic resistor is bad?? it says 10W @ 360 Ohm J.

Looking around all my old junk, nothing looks remotely like that.. need to figure how to connect some old CHAIR or something that has the same electrical properties, but not sure what can be substituted, so might need to order and wait...

Thanks everyone! looks like that is the issue of slow charging at least

Stormy.

[stormy1777]

Re: Repair Fence Energizer SS-1000E Fi-Shock

OH, what a pleasant reply, as I was typing the following

Diodes are out, looking for replacements, will take these measurements once it is put together..

found 4 different diodes, but not sure anyone will fit the needs, size wise they look similar size:

1) FR302 , spec: , no go, 100V

2) S3-83

3) 3PDA-60-8L

4) ER506-peo 9329
spec i think: , so no go, b/c it is 600V.

OK, let me go with the HER-208, they are somewhat smaller, but voltage wise i think it's closet of these, lets see.

Stormy.

[eccerr0r]

Re: Repair Fence Energizer SS-1000E Fi-Shock

It won't get to 2 amps sustained, don't worry about it. Peak, maybe; but not sustained.

Other things would fail first if 2 amps flowed through continuously...

[budm]

Re: Repair Fence Energizer SS-1000E Fi-Shock

Right now you are testing to find out if the main filter cap will be charged up to full Voltage or not WITHOUT THE LOAD (Transformer is not in place) so those HER-208 will be fine.

[stormy1777]

Re: Repair Fence Energizer SS-1000E Fi-Shock

Found many HER-208-HG, but I think that is 2A and the 1N5408 is 3A.. probably not safe.

[eccerr0r]

Re: Repair Fence Energizer SS-1000E Fi-Shock

How about this:

what's the voltage across the power resistors 32->33 and 26->27

They better be fairly low unless the resistor is burning up hot.

Might well also take the voltage across 2->3 for grins. Voltage from 22->4 might be helpful but as it's a transition from ac -> dc, numbers might look screwey.

If you have some 1n4005-1N4007's or 1N5405-1n5406 you can temporarily substitute them. Don't leave them in else they may fry.