Philips CRT issue

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Xan
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Joined: Mon Sep 23, 2013 12:04 pm

Philips CRT issue

Post by Xan »

I recently resoldered the SCART connector on some Philips 14" TV from 2001, as the old solder points had long cracked. Then I went to test my Wii (with official RGB cable) and my SFC (with official GC RGB cable as well), both of them give the same very dark, green-ish image with flickering white streaks in it. Judging by the lack of dot crawl it seems that RGB is enabled. After that tried my PS1 with sync-on-luma RGB cable and surprisingly enough the image looks perfectly fine there. Seems really strange that it only works with one console, what could be going on there?
juci
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Re: Philips CRT issue

Post by juci »

sounds like theres no external sync
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Xan
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Re: Philips CRT issue

Post by Xan »

Well, I just remembered that even back in the day when this was my only TV I could never get my GC to properly work on it with an RGB cable, and I attributed that to the iffy SCART connection. I'd always use composite because of that. Thinking further about it, the green tinted image might have been just the same I was seeing back then. So I just tried a plain CVBS-as-sync cable for the PSX, and lo and behold, I get the exact same crappy image as on the SFC and Wii. Unless something is fundamentally wrong with the hardware, it really seems like this TV just can't handle composite video as sync... I've never heard of such a thing, why would they design it like this?

When it works, the RGB quality is actually really great for such a lower end TV. It's a distinctly different look from a PVM since the shadow mask is clearly visible and there is no visible scanline effect going on at all in 240p. The chassis also seems to be fully populated with all Japanese caps.
mvsfan
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Re: Philips CRT issue

Post by mvsfan »

on some of the cheaper scart plugs they make the metal too thin and it doesnt get a good connection because of it. i have a scart switch that has a plug like that if its not plugged in just right my image will appear with a blue tint on it.
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Xan
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Re: Philips CRT issue

Post by Xan »

The plug on that sync-on-luma cable is the most sturdy one of all of them, though I definitely made sure to fully plug them in for best possible connection. If it's really down to the individual plugs rather than sync type it's obviously nothing that I'm able to affect. This is probably a more logical explanation than designing a consumer TV which wouldn't work with most RGB appliances though.
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