I killed my star wars..

learpilot2

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I bought a star wars that had a non-working WG monitor in it. I did a cap kit, and installed a LV2000 mod. I changed all the frame transistors also.

I turned it on, and I heard beeping and deflection chatter for 5 seconds, heard a big bang, and smelled smoke. I looked around the back, and the entire yoke cracked in half and was dangaling by the neck board wires. The glass tube (neck) broke in half and separated from the picture tube.

What in the heck did I do? I have recapped many monitors with no problems. What would cause such an explosion??

Next question. Is it safe? The neck is swinging by wires, the picture tube is open. Is it discharged? If not, how do I discharge it?

What is the fix? Can you buy new tubes? Not sure I want to hook a new tube up to a unknown problem???

Thanks for the help.

Rick
 
please post some pics

maybe you dropped a wire or something down in between the yoke and tube?

the tube is discharged, unplug it from the wall if you havent. getting a tube is rather easy, its the yoke thats gonna be a pain to find.
 
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Sounds like the tube you got with the game either already had a shorted yoke or a cracked tube, and it just went kablooeey with proper HV going to it. Unfortuantely, it will NOT be easy to find a replacement. I tired to find one a few years ago with no luck. haven't tried too hard lately, but I doubt it would be any easier now.

I can't think of anything YOU did to make the yoke crack in half. Even if the wiring from the yoke to the deflection chassis were plugged into the wrong place, I doubt you'd cause that kind of catastrophe.

Perhaps it was really cold in the garage when you tried this? I've heard of a tube going boom while being turned on when really cold....
 
sconfu said:
getting a tube is rather easy, its the yoke thats gonna be a pain to find.
Click to expand...

6100 tubes are not as easy to find as regular raster tubes. Yokes might actually be easier, as I'm sure some people have them from when they broke a 6100 tube and couldn't find a tube...
 
You can try calling these yahoos but be forewarned they will NOT send you pics of the tube. They're pretty much dicks but beggars can't be choosers I suppose.
ELDORADO GAMES
(417) 471-1005
 
modessitt said:
6100 tubes are not as easy to find as regular raster tubes. Yokes might actually be easier, as I'm sure some people have them from when they broke a 6100 tube and couldn't find a tube...
Click to expand...

???????????????????????

A 6100 is a run-of-the mill low resolution tube not hard to find at all (old TV's etc.).

For the zillionth time there are NO "raster tubes" and there are NO "vector tubes".
There is just TUBES. They are the SAME for raster AND vector.

The thing that makes a difference between raster and vector is the yoke (and of course the chassis).

The ONLY difference in tubes is with Amplifone vector monitors that use medium resolution tubes. Those are VERY hard to find/expensive.

The 6100/Amplifone yokes (they are the same for both monitors) are very hard to find. I've got a spare, but I'm keeping it. I've got a spare for every electronics part of my SW.
 
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Level42 said:
???????????????????????

A 6100 is a run-of-the mill low resolution tube not hard to find at all (old TV's etc.).

For the zillionth time there are NO "raster tubes" and there are NO "vector tubes".
There is just TUBES. They are the SAME for raster AND vector.

The ONLY difference is with Amplifone vector monitors that use medium resolution tubes. Those are VERY hard to find/expensive.
Click to expand...

Settle down there Sparky. Yes you are mostly correct about tubes (FWIW not all tubes are 100 degree tubes :)) but he's lost his yoke as well. And a yoke is not just a yoke ;)
 
Deadly said:
Settle down there Sparky. Yes you are mostly correct about tubes (FWIW not all tubes are 100 degree tubes :)) but he's lost his yoke as well. And a yoke is not just a yoke ;)
Click to expand...
I've been under the impression the only difference in the CRT themselves is the 100 degree vs whatever. I've never thought you can use them if they are different in that respect. Can you?
 
Level42 said:
For the zillionth time there are NO "raster tubes" and there are NO "vector tubes".
There is just TUBES. They are the SAME for raster AND vector.
Click to expand...

I was referring to the difference in deflection angles - 90 vs 100. As far as I'm aware, no rasters we find in arcades used 100's, so a 100 would be a vector tube...
 
Lear, I just want to give you props for giving me yet another reason to rationalize not doing my cap kits! :D
 
Level42 said:
???????????????????????


The 6100/Amplifone yokes (they are the same for both monitors) are very hard to find. I've got a spare, but I'm keeping it. I've got a spare for every electronics part of my SW.
Click to expand...

Correction - The 19" 6100/25" Amplifone yokes are the same. The 19" 6100/19" Amplifone yokes are different.
 
pictures of blown up tube....

Complete separation of tube occurred.

I capped the hv board, deflection board, neck board, and added a lv2000 on the deflection board. I rebuilt the power supply, and the audio pwr board. When I turn it on, BANG. Before I did all this work I turned it on, and just neck glow and no picture. Sure I did not mess something up?

Question...
I got lucky and bought a fully working just capped 6100 Monitor that is complete. It arrives fedex ground sat. It has no lv2000 mod. I and going to swap out the entire chassis. Would you dare swap my newly capped deflection board with the lv2000 Mod into it? I think I should leave well enough alone. If it is not broke don't fix it theory. I am just gunky because I think I did something to cause the explosion.

Rick
 

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another dumb question

What is the difference between the tube and the yoke?

I know what the neck board PCB is. Can you separate the glass tube from the yoke and reuse the yoke with a new tube? Would that just blow up another tube?

I never checked the voltage coming out of the brown wires going to power the monitor. Since I rebuilt the power supply, should I do that? What would the voltage be? Could power problem blow up tube?
 
It looks like someone damaged the tube previously by dropping something on the yoke, cracking it all the way around. When you powered it up, all the HV started leaking thru and caused your kablooey. If the yoke is still good, it can be loosened and the neckboard and yoke can be removed from that glass still in there.

Yeah, I'd use the boards on a different tube. I don't see any reason why the boards would have caused this type of damage...
 
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