G07, where to put the white wires from the metal CRT casing ?

[Level42]

Quick question: I'm trying to connect a replacing G07 PCB set to the tube that came with my Centipede (so also G07). I got all connections back easy enough, but I'm not 100% sure about the two white wires coming from the metal casing that surrounds the CRT. I guess that's the degauss-coil ??

Do the wires go on the two pins near the mains power connection ?

Checked the manual but pictures are not clear and I'm not sure about the schematics.....

Thanks !

[Ummon]

Two white FIRES, huh?  Heheheh.  That title is gooood.

[Kevin Mullins]

Do the wires go on the two pins near the mains power connection ?

Yes..... should also be a little black box nearby, that would be the PTC component for the degauss.

[Level42]

Thanks Kev, that was the one I thought it would be !

I tried the "new" PCB set on my Centi G07 tube and it seems to work. At least I got an over bright screen (turned down the HVT pot). Haven't connected the video signals though...tonight !

[Level42]

It works ! !

Can't get a full size horzizontal picture though. Doing the cap-kit now and let's see if that improves it. Else it's carefully adjusting the width coil.

Question: Bob Roberts' instruction with the kit mentions a mod. I found some info about this on the net saying it was to prevent curl with some more modern game PCB's ? Would this be a benefit with my Centipede ?

[Kevin Mullins]

Can't get a full size horzizontal picture though. Doing the cap-kit now and let's see if that improves it. Else it's carefully adjusting the width coil.

Be sure to use the right tool...... plastic.... otherwise you will break the core.

Question: Bob Roberts' instruction with the kit mentions a mod. I found some info about this on the net saying it was to prevent curl with some more modern game PCB's ? Would this be a benefit with my Centipede ?

Honestly, I've personally only had that problem with the newer games (modern).
I would think with Centipede it should be OK.
And by "horizontal" do you actually mean "vertical" as if it was in the Centipede?
(horizontal = long side, vertical = short side)

[Level42]

Can't get a full size horzizontal picture though. Doing the cap-kit now and let's see if that improves it. Else it's carefully adjusting the width coil.

Be sure to use the right tool...... plastic.... otherwise you will break the core.

Question: Bob Roberts' instruction with the kit mentions a mod. I found some info about this on the net saying it was to prevent curl with some more modern game PCB's ? Would this be a benefit with my Centipede ?

Honestly, I've personally only had that problem with the newer games (modern).
I would think with Centipede it should be OK.
And by "horizontal" do you actually mean "vertical" as if it was in the Centipede?
(horizontal = long side, vertical = short side)

Yes, I've got a complete plastic toolset I forgot to return to one of my former employers (no really !).

OK, I'll keep it original, it was working OK before the cap-kit so....

Horizontal and vertical are always referened to the base of the monitor isn't it ? Not the way it's mounted in the cab.

Anyway, yes when the monitor would be in the cab, I couldn't get the full height (=width)

[Kevin Mullins]

Horizontal and vertical are always referened to the base of the monitor isn't it ? Not the way it's mounted in the cab.

Well, yes and no..... 
There are vertically mounted frames, which would make the vertical side the base....but yeah, you got the right idea.

[Level42]

Well, I changed my mind (again) and did the mod, it was easy enough.

The good news is that after the cap-kit everything worked like before. I thought the monitor was a bit dim though. Checked B+ and it was only 95V. Could up it to 120V with the pot, but it was hard to get exactly 120V. I figure the pot is not that good anymore. Monitored it and it stays firm though.

Screen is nice and bright again. Also the width has increased because of this, but I still have to see if I can get it a bit wider.

Seems like the convergence is not perfect, but acceptable. So some adjustments and it can be mounted back into the Centi.