Chipped Tip: WG4600

D_Harris

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I have a WG4600 I just cleaned up and the very tip of the rear of the tube that the neck board fits over is chipped.

Does this mean the tube is no good and I should just trash it?

Thanks.

Darren Harris
Staten Island, New York.
 
I guess the only way to find out if there is a pin hole is to hook it up.

Unfortunately, I have another problem.

There is what looks like a plastic tube with copper windings that was hanging loose, so I figured out where it goes and tried to re-insert it only to have the plastic part start to crumble.

Can someone tell me what that is and what I should do with it?(See pic).

Thanks.

Darren Harris
Staten Island, New York.
 

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I guess the only way to find out if there is a pin hole is to hook it up.

Unfortunately, I have another problem.

There is what looks like a plastic tube with copper windings that was hanging loose, so I figured out where it goes and tried to re-insert it only to have the plastic part start to crumble.

Can someone tell me what that is and what I should do with it?(See pic).

Thanks.

Darren Harris
Staten Island, New York.

That is your horizontal width coil.
 
That is your horizontal width coil.

Well I guess that means this project is over, unless I can figure our a way to hook up one of my 20EZ monitors into my Ms.Pac-man cabinet without hacking the wires permanently.

(The horizontal width coil on the WG4900 is not the same as that of the WG4600).

By the way, I just dug out a Sanyo, which I haven't looked at in years, and wanted to confirm that the connector in the picture between the AC in and RGB connectors is for sync, correct, and both ends have there place to plug into on the chassis, correct?(See pic).

Thanks.

Darren Harris
Staten Island, New York.
 

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Last edited:
Well I guess that means this project is over

Why? If it won't fit into it's holder anymore, wrap some electrical tape around the coil and lugs so it won't short to any metal (leaving a hole so you can adjust it if necessary) and then use a cable tie to hold it in place....
 
6 pin connector is video including sync, 2 pin connector in the middle is the sound signal, 2 pin red and white connector is for the speaker.
 
Why? If it won't fit into it's holder anymore, wrap some electrical tape around the coil and lugs so it won't short to any metal (leaving a hole so you can adjust it if necessary) and then use a cable tie to hold it in place....

Someone did a terrible hack on the 4600 power cord. The AC leads only had the metal pins with no housing on the end. So I tried using some electrical tape to hold everything together. (Not that it felt right).

Nevertheless, the monitor, which I had actually washed a couple of days ago due to the extreme amount of dirt/dust does not work. So after wiggling the cards and the cord, and getting no neck glow whatsoever, I had to determine it was a lost cause.(Probably the flyback).

So I might try taking out the original WG4900, washing it, and then capping it.(Though I don't know if capping will correct the kind of problem I described).

Thanks.

Darren Harris
Staten Island, New York.
 
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Before I give up completely, I figure that outside of a cap kit for both the WG4600 and the also the WG4900 which I washed also, I'll just re-flow the recommended solder joints and shotgun some more.(Though I can't see how cold joints could contribute to no neck glow whatsoever in the WG4600).

Thanks.

Darren Harris
Staten Island, New York.
 
(Though I can't see how cold joints could contribute to no neck glow whatsoever in the WG4600).
.

The neck glow comes from the heater voltage generated normally by the flyback. Now, the flyback generates its power based on the B+ through the horizontal drive transistor.

Imagine that power goes from point A through a part to point B then to point C then through a part to point D then on to the flyback. If there is a cold solder joint on either leg of the part between points A & B or on the part between points C & D, then there won't be a good enough connection to allow the power to continue on to the flyback, and then you'll have no neck glow.

That is an oversimplified explanation, but should help you understand...
 
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