Robotron monitor bowing in on sides??

[CossackWarrior]

I plugged in the original PCB set, and jrok, and it bows on the sides on both. So that eliminTes the problem being the boards.

So the issue is somewhere with the monitor. What could be causing the bowing on the sides?

You can play the game just fine, it is more of an annoyance than anything else. OCD kicking in

 

[gwarble]

What monitor? and did you cap it yet?

 

[SterlingRush]

Yes, monitor info is needed, before anyone can help address the issue.

 

[87 t-66]

some monitors have a pincushion adjustment, but we need more info

 

[1500points]

you should be more concerned about the guy inside the monitor that is taking pictures of you with a cell phone....

 

[CossackWarrior]

you should be more concerned about the guy inside the monitor that is taking pictures of you with a cell phone....

lol, ya, who is that guy?

More information coming tonight, sorry didnt have a chance this morning to go down and check. Its always a mad dash each morning getting the kids and everything else in order for school and work, lol.

 

[CossackWarrior]

K, so checked the monitor tonight. Pics included. So the chassis is a 4900, it did not have a cap kit, but was thoroughly checked not too long ago by a member here before I installed it.

The monitor was replaced and is not the original monitor for that chassis. I'm wondering if the yoke could be the issue here?

 

[CossackWarrior]

It actually bowes in on the bottom too.

 

[mann0mann]

It's having an adverse reaction to all that chrome.











;-) I kid. I kid

 

[tron guy]

It's having an adverse reaction to all that chrome.











;-) I kid. I kid

Yeah that cab is 'unique'.
That does not look like a k4900 yoke. Can you measure the ohms of red/blue and green/yellow for us?

 

[mecha]

what sticks out to me is the Philips tube. I didn't know they provided tubes back then for WG, but then again I never paid attention to the TV makes on those before either. it also looks way too new. it was probably a tube swap at some point.

19" monitors wouldn't have pincushion adjustments either, that was mostly reserved for 27" and bigger I think.

 

[87 t-66]

what sticks out to me is the Philips tube. I didn't know they provided tubes back then for WG, but then again I never paid attention to the TV makes on those before either. it also looks way too new. it was probably a tube swap at some point.

19" monitors wouldn't have pincushion adjustments either, that was mostly reserved for 27" and bigger I think.

the wells k72xx have pincussion adjustments IIRC

 

[mecha]

the wells k72xx have pincussion adjustments IIRC

never dabbled with those things. I've been lucky that they "just work" I guess. LOL

I imagine that adjustment is hidden somewhere on the deflection board?

 

[87 t-66]

never dabbled with those things. I've been lucky that they "just work" I guess. LOL

I imagine that adjustment is hidden somewhere on the deflection board?

yep. looks like its just the 7203, not the 7201.

http://www.wellsgardner.com/pdf/Board/K7203_13_19_inch.pdf