TheYeti
Well-known member
So I bought this 20EZ from a guy on craigslist who had it in a VS machine. He didn't know anything about monitors so he said that he had another guy cap the monitor for him. Well he says it worked fine for 2 months and they went into vertical collapse.

So when I got the monitor, I noticed right away that TR402 was not right. So I swapped in another and now I get this picture.
And.... after tweaking some pots, this is the best I could make it look:
I'm pretty confused right now because I seemed to have gotten rid of the vertical collapse. (sort of) but I'm not seeing any image from my Test Pattern Generator. And my B+ is at 110VDC.
I have already ordered a new cap kit, filter cap, B+ pot and new transistors (TR402 and TR403) but I was just curious of anyone has seen this kind of picture on a Sanyo before? I really have no idea if the previous person's cap job was done correct until I put my caps in but I just wanted to know if anyone has seen this behavior before. I don't really like those lines down the left side of the screen. That looks like it could be related to the yoke. And the jittery waves on the edges of the screen are also weird. (Not to mention that the chassis doesn't want to show an actual image)
I also didn't notice any obvious cold solder joints or broken traces (yet). And there are no cracks in the board. I'm also fairly certain the tube is ok and the yoke ohms out ok as well.

So when I got the monitor, I noticed right away that TR402 was not right. So I swapped in another and now I get this picture.
And.... after tweaking some pots, this is the best I could make it look:
I'm pretty confused right now because I seemed to have gotten rid of the vertical collapse. (sort of) but I'm not seeing any image from my Test Pattern Generator. And my B+ is at 110VDC.
I have already ordered a new cap kit, filter cap, B+ pot and new transistors (TR402 and TR403) but I was just curious of anyone has seen this kind of picture on a Sanyo before? I really have no idea if the previous person's cap job was done correct until I put my caps in but I just wanted to know if anyone has seen this behavior before. I don't really like those lines down the left side of the screen. That looks like it could be related to the yoke. And the jittery waves on the edges of the screen are also weird. (Not to mention that the chassis doesn't want to show an actual image)
I also didn't notice any obvious cold solder joints or broken traces (yet). And there are no cracks in the board. I'm also fairly certain the tube is ok and the yoke ohms out ok as well.
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