Hi,

I've had one of those the last time and before that 3 times at another evening.
My G70 switched off, giving me that error, but I could switch it just on again and it run.

I guess I have to be worried a little bit, right?

roland

Error 39 = "Current in any of the R, G, and B CRTs exceeds the rated output (detectable on the B board)."

Yes, I'd be worried. Maybe it's nothing serious, but...

what can I do about it?

Error 39 = "Current in any of the R, G, and B CRTs exceeds the rated output (detectable on the B board)."

Yes, I'd be worried. Maybe it's nothing serious, but...

It's usually one of the CRT sockets/video amps. Fully disconnect each one one at a time. Once you disconnect the defective one, the other tubes will turn on. I can repair that socket here.

It's not really broken (yet), it's just switching off, showing the error.
I can just switch it on again using the remote.
The last time it happend it ran several hours after that without a problem.

You mean it would also switch on automatically when disconnecting the "defective" one?
By disconnect you mean that part at the end of the tube?

It's usually one of the CRT sockets/video amps. Fully disconnect each one one at a time. Once you disconnect the defective one, the other tubes will turn on. I can repair that socket here.

Switching a potential bad neck card on and off is just ASKING for a spot burned tube. It's like continuing to run a radiator with a leak in it. 'I can just add water'

I would STRONGLY recommend against that.

http://www.curtpalme.com/SonyG70_Layout4.shtm

Above is where the CRT sockets are. Pull each one off the tube and disconnect all wires going to it. Be careful of the mini RCA video connectors, wiggle them off via the metal connector only, do not pull them out by the wire.

Yeah, what Curt said.

If you want to keep running it to troubleshoot, swap a burnt set of tubes in, if you have some.

It's not really broken (yet), it's just switching off, showing the error

:confused:

:)

... showing the error and switching it on again and works further
But it might now work suddenly anymore.

:confused:

Yeah, what Curt said.

If you want to keep running it to troubleshoot, swap a burnt set of tubes in, if you have some.

So, it's not the tube, but something on the board which is gonna kill the tube?

How do I figure out which one is the problem?
When it switches of by disconnecting (but it will not switch on again, right?)or by disconnecting one after another and waiting if the error comes back?
This could never happen since it might run for hours without an error.

So, how does it help disconnecting the tubes?

Switching a potential bad neck card on and off is just ASKING for a spot burned tube. It's like continuing to run a radiator with a leak in it. 'I can just add water'

I would STRONGLY recommend against that.

http://www.curtpalme.com/SonyG70_Layout4.shtm

Above is where the CRT sockets are. Pull each one off the tube and disconnect all wires going to it. Be careful of the mini RCA video connectors, wiggle them off via the metal connector only, do not pull them out by the wire.

Edit, this post should go above your last one, we were typing at the same time.


Yes, probably something on one of the neckboards.

READ what Curt said. If it gets worse it's possible you will kill one (or more, but that's unlikely) tube.

I would change the tubes for burnt ones if you have them, and then start swapping in a good known neckboard, or disconnecting the current set one at a time, until the error disappears.

isn't changing a neckboard cheaper and easier then changing a tube?

I finally have a configuration which I like, changing a tube will let me start all over again.

Or will that color be off too when changing a neckboard?
Is there a way to determine on the board what the problem might be?

Edit, this post should go above your last one, we were typing at the same time.


Yes, probably something on one of the neckboards.

READ what Curt said. If it gets worse it's possible you will kill one (or more, but that's unlikely) tube.

I would change the tubes for burnt ones if you have them, and then start swapping in a good known neckboard, or disconnecting the current set one at a time, until the error disappears.

No, there's no way of telling. You simply need to disconnect one CRT socket, then run the set for a day or two to see if it shuts down. Turn the brightness and contrast down to prevent tube wear. The other way to solve the problem is to swap out all 3 CRT sockets at a time. I do have a working set of spares.

It is also possible that one of the three tubes has an intermittent short in it, but if the tubes are not VDC rebuilds, then I really doubt it.