SNK Neo 19 WIP

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Rossyra
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Re: SNK Neo 19 WIP

Postby Rossyra » October 31st, 2012, 8:55 pm

See my pic above, probably gonna have to pick off that blob of glue, it might be old and brittle by now anyway.
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Re: SNK Neo 19 WIP

Postby cools » October 31st, 2012, 9:34 pm

Aha, vertical rather than horizontal.

Already tried removing the glue. It's still flexible and adhesive!
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Re: SNK Neo 19 WIP

Postby Rossyra » October 31st, 2012, 9:44 pm

Does just pressing down on it stop the noise?
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Re: SNK Neo 19 WIP

Postby cools » October 31st, 2012, 10:47 pm

A little, but not much. The PCB flexes a hell of a lot. Not tried supporting it while putting pressure on. I'll have another go at the PSU this weekend.
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Re: SNK Neo 19 WIP

Postby AeroCityMayor » November 1st, 2012, 12:07 am

Time to get the tooth picks out d00d ;)

Awesometastic get BTW :awe:

Cheers,

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Re: SNK Neo 19 WIP

Postby cools » November 2nd, 2012, 10:56 am

Managed to get the glue off without breaking anything and desoldered the transformer. Wrapped 20 layers of insulation tape tightly around the coil and the ferrite and strapped a cable tie around the ferrite. It's cut the noise level by about 50%. Still there but should be tolerable inside the cab for now.

Got the whole cab screwed back together and I'm only missing one screw on the hood. :awe:

Sealing strip arrived today. It's denser than the original so I hope it compresses enough. I've cleaned up that whole area of the cab ready.

Still need the dimensions of the mounting board! :shifty:

Regarding polishing - my Greygate isn't touching stuff at the moment, going to need something coarser first and some power assistance. I've read that Tripoli Brown compound and a buffing wheel will help - but am I likely to send compound flying around the room doing this or does it stay helpfully on the wheel at low speeds?
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Re: SNK Neo 19 WIP

Postby cools » November 2nd, 2012, 3:41 pm

Ordered a set of big bottles of Novus 1,2,3. I'm probably safer polishing slowly by hand over a long period of time than trying to do it in one hit with power tools... :lol:
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Re: SNK Neo 19 WIP

Postby markedkiller78 » November 2nd, 2012, 3:58 pm

Use a car buffer lightly & you will be fine.

you only get issues when you apply too much pressure or it's a soft metalic paint. The latter gits swirls in it that look awful in certain light.
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Re: SNK Neo 19 WIP

Postby cools » November 2nd, 2012, 4:05 pm

Concern isn't for the plastics, it's for the mess I'd make using it in a living room environment based on previous experiments :lol:
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Re: SNK Neo 19 WIP

Postby Rossyra » November 2nd, 2012, 4:09 pm

Yer it does spray everywhere, as well as that fibre/material comes off the mop as you work and that makes a right mess too. You need to keep applying water to make it work properly which increases the messiness. The results are great though, I just polished the NNC surround last night by coincidence.
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Re: SNK Neo 19 WIP

Postby markedkiller78 » November 2nd, 2012, 4:24 pm

You don't have you room sheeted?

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It splatters all over the place. I've only done it outside (and to cars)
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Re: SNK Neo 19 WIP

Postby cools » November 2nd, 2012, 8:04 pm

Strangely, now I've hooked the speakers up the noise is being amplified. I'm wondering if it's the motherboard causing it somehow?

Without speakers - noise only from PSU
With speakers - noise from PSU and from speakers. Altering the volume alters the noise level from the speakers.
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Re: SNK Neo 19 WIP

Postby Rossyra » November 2nd, 2012, 8:09 pm

:eh: Is the PSU grounded properly?
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Re: SNK Neo 19 WIP

Postby cools » November 2nd, 2012, 8:32 pm

Doesn't sound like mains buzz, but no - cab is not earthed properly yet.
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Re: SNK Neo 19 WIP

Postby SuperPang » November 3rd, 2012, 12:10 pm

I had a 4 slot that caused a lot of audio noise on my Neo 19 (or was it the SC25? :think: ). No PSU noise though.
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Re: SNK Neo 19 WIP

Postby Paulie » November 3rd, 2012, 12:21 pm

Hope you get to the bottom of this.

Lovely cab BTW :)
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Re: SNK Neo 19 WIP

Postby cools » November 3rd, 2012, 7:18 pm

You wouldn't notice the PSU noise unless the speakers were unplugged... Interesting you've mentioned that, I've had no trouble with this board in a Pony (that's JAMMA wired to spec and grounded properly).

Anyway, got some ply cut and drilled today. If anyone wants a fresh Neo 19 mounting board send me a PM, I made two :D
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Re: SNK Neo 19 WIP

Postby PrincessPrinPrin » November 3rd, 2012, 8:00 pm

What's the tube code on these? The 19" leaves me perplexed...
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Re: SNK Neo 19 WIP

Postby cools » November 3rd, 2012, 8:12 pm

Er, I'll get it for you next time I have the hood off. Mine has the Hitachi monitor in it. It's definitely a touch larger than the Cute monitor.
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Re: SNK Neo 19 WIP

Postby tetsujin » November 3rd, 2012, 8:36 pm

cools wrote:Concern isn't for the plastics, it's for the mess I'd make using it in a living room environment based on previous experiments :lol:


Surely its small enough to lift up and carry outside?
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