Donkey Kong not powering on

[Handymani650]

Yes I'll wait for his reply and see what he thinks.

 

[Handymani650]

One step at a time. Patience is required in this hobby, especially when dealing with monitors. Let's wait and see what mecha says first at a minimum.

Also, just to be sure...

Have you obtained the correct value fuse yet? If yes...have you tried powering on the monitor with it installed?

I got fuses that say they work for 4a 125 -250v they were slow blow 2 I tried turning it on and the black box there started to smoke so I turned it off right away.

 

[Handymani650]

Couldn't find any in that size that were only 125v they said 125v safe but up to 250.

 

[eddie1thompson]

One step at a time. Patience is required in this hobby, especially when dealing with monitors. Let's wait and see what mecha says first at a minimum.

Also, just to be sure...

Have you obtained the correct value fuse yet? If yes...have you tried powering on the monitor with it installed?

This is true- I've "wasted" money just trying to get them playing quickly.

 

[TheYeti]

I think that I just realized that you were taking measurements from the AC lugs and not from AD (the black degauss wires).

Not that it makes much difference now that we know you have smoking components. That's never good. Don't power the monitor back on again.

You definitley have something wrong somewhere. There is a good chance you will have to send this out for repair. Or buy a replacement outright.

 

[Handymani650]

I think that I just realized that you were taking measurements from the AC lugs and not from AD (the black degauss wires).

Not that it makes much difference now that we know you have smoking components. That's never good. Don't power the monitor back on again.

You definitley have something wrong somewhere. There is a good chance you will have to send this out for repair. Or buy a replacement outright.

Do you think a new chassis would fix the issue im having ?

 

[TheYeti]

Do you think a new chassis would fix the issue im having ?

Maybe.

There could be something wrong with your degauss circuit. Or the degauss wire itself. (The big thick wire that runs around the perimeter of the tube)

If your degauss wire itself is somehow shorting (cut or frayed) then a new chassis isn't going to fix the issue. And you might even damage your new chassis. Just need to proceed with caution.

Do you notice any damage to the degauss wire?

 

[Handymani650]

Maybe.

There could be something wrong with your degauss circuit. Or the degauss wire itself. (The big thick wire that runs around the perimeter of the tube)

If your degauss wire itself is somehow shorting (cut or frayed) then a new chassis isn't going to fix the issue. And you might even damage your new chassis. Just need to proceed with caution.

Do you notice any damage to the degauss wire?

 

[Handymani650]

It seems to look fine.

 

[TheYeti]

The degauss wire looks fine, from your pictures at least.

So that black box that was smoking is part number PTH451C and it's a Thermistor and part of the degauss circuit. Since it's smoking, it could be shorted internally.

But again, this is just guesswork as it could be other components nearby causing this issue. Components are often interrelated.

 

[Handymani650]

Yeah I looked at it from the front and back and can't seem to find any section where it looks damaged. Ahh good to know what the part is hmmm. What would you do if you were in my place?

 

[TheYeti]

Yeah I looked at it from the front and back and can't seem to find any section where it looks damaged. Ahh good to know what the part is hmmm. What would you do if you were in my place?

I cold give you a really long answer how I come to this conclusion, but my short answer is:

Send the chassis to be repaired to KLOV member @paul400

He is a trusted repair guy that can probably fix anything and he works really fast.

At the end of the day, time is money for me. So unless you want to roll your sleeves up and buy all kinds of repair equipment and spend dozens of hours teaching yourself how to chase problems, the I would just just pay to have it fixed and play some Donkey Kong.

 

[Handymani650]

Paying to get it fixed sounds like the way to go for me 2. I mean certain things I wouldn't mind giving it a shot but don't think I got the know how or equipment for this one.

 

[Handymani650]

Just an update got a chassis in installed flipped the switch nothing came on. Checked the voltage at b it was 140v.

 

[TheYeti]

Just an update got a chassis in installed flipped the switch nothing came on. Checked the voltage at b it was 140v.

Can you provide more context here? Is this a new chassis? Or you got your original chassis back from repair?

 

[Handymani650]

Can you provide more context here? Is this a new chassis? Or you got your original chassis back from repair?

Sorry this is a new chassis that I purchased.the prior issue of blowing the fuse is no longer present.

 

[TheYeti]

Sorry this is a new chassis that I purchased.the prior issue of blowing the fuse is no longer present.

Well, now that you have a new chassis installed, you could be dealing with any other number of issues compared to the first one.

In what condition was this chassis sold to you? Unless it was sold to you 100% known-working, then it's almost guaranteed to need a full rebuild.

At the very least, have you tried powering it on without the degauss wire plugged in?

 

[Handymani650]

It was sold as known good recapped and tested before shipping. I have tired powering it on and have also tried it with the degauss wire plugged in.

 

[Handymani650]

I will be shipping my original one out this week to get fixed.

 

[TheYeti]

It was sold as known good recapped and tested before shipping. I have tired powering it on and have also tried it with the degauss wire plugged in.

Well then...this is certainly interesting.

Why don't you take a bunch of pictures of your monitor. Try taking them from as many angles as you can (with good light) so everyone can get a good look at your setup.

Bonus if you can take good high res photos of the top of the chassis and the bottom. Need to inspect the chassis for any hairline cracks from shipping. Especially near the flyback.