Sanyo EZ20 left side wobblies

Sir Kongsalot

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Based on what you see in the photo, is this an H-HOLD issue?

wibblywobbly.jpg


This has been happening on one of my Nintendo monitors since I got it a few months ago. After startup, it wibbles and wobbles for a while, always on the left side, then goes away on its own after the machine has been on for a few minutes. Never tried to fix it because it aint broke (aint broke enough at least), which I think is generally a good policy with these beasts. I'd rather just wait the few minutes than create an all-new problem.

Just hooked that DK up to a different monitor though and it's doing the same thing! Only this time it's taking considerably longer than a few minutes for it to go away.

If that looks like H-HOLD, I might as well give it a shot.

Why don't I just go try it now rather than making a thread? Because after reading many tales of attempted adjustments leading to burned flesh, I'm not eager to go sticking my limbs into hard-to-see (let alone reach), high voltage areas, and I'm so thrilled that Sanyo decided to put this and the third brightness pot (why are there three brightness pots?) there. Also because adjusting this particular pot can (apparently) produce horrible high-pitched screeching and monitor shutdowns.

So I'd rather rule out this pot (or narrow it down TO it), before risking pain/death.
 
If it's doing it on more than 1 monitor, it may not be the monitor. When it's doing it, try adjusting the pots on the pcb as I've seen those cause issues as well. - Barry
 
Hm, I can't imagine how it would be the horizontal/vertical position pots (VR1/VR2) on the PCB, as this isn't a "positioning" issue.

(Though now of course the problem is that the game's been burning in for a couple of hours and at this point there's only the slightest, tiniest hint of "bouncing" up by Kong so I can't do any troubleshooting!)

I seem to remember Dokert saying something about H-HOLD possibly needing to be adjusted when a new game is connected to a monitor that's been connected to a different game for a while, which would make sense in the case of both of these monitors, since DK was "new" to both of them.
 
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If it's doing it on more than 1 monitor, it may not be the monitor. When it's doing it, try adjusting the pots on the pcb as I've seen those cause issues as well. - Barry

I agree. Simply press on the position pots on the boardset and see if it changes. If it does not change, then I would suspect it may be a H Hold issue.
 
I'll be damned.

It was VR1 (horizontal position) on the PCB after all. When I'm actively turning it, or when I release it in a spot that it doesn't like, the wobble happens. Give it another slight, almost miniscule, bit of turn and it stabilizes.

Maybe the pot is going bad and is causing this to manifest?

Thanks.
 
I'll be damned.

It was VR1 (horizontal position) on the PCB after all. When I'm actively turning it, or when I release it in a spot that it doesn't like, the wobble happens. Give it another slight, almost miniscule, bit of turn and it stabilizes.

Maybe the pot is going bad and is causing this to manifest?

Thanks.

Replace the pot.
 
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