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/vr/ - Retro Games

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4921460 No.4921460 [Reply] [Original]

My SNES is having some issues with colour on my 2 sony trinitrons. One of them will only display SNES' image in rainbow colours (27") and one will only do black and white (20").
I've tried other cords as well and the same issue still persists.
With the same cables, these TVs display my N64 with normal colours. I tried my Genesis on them as well and it displays perfectly fine.
My Citizen CRT and my Toshiba LED TV both display my SNES normally, which is the most baffling part to me.
I'd really like to be able to fix the issue on the 27", but the fact it's specific to the Sony TVs has me at a total loss.

>> No.4921465
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4921465

The power cord is an official Nintendo one so I don't think that's the issue.
I've tried both AV and s-video cables and it has the same issue, so it must be some problem the SNES is giving off that the SONY TVs specifically can't deal with.
The one thing I haven't tried that I can think of is opening the system and cleaning it, which I need to wait to do since I don't own my own gamebit screwdriver.

>> No.4921470
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4921470

And here's the normal colours on the Citizen CRT.
I don't know if /vr/ was the right place for this but I'd appreciate any help I can get on this extremely specific issue.

>> No.4921472

>>4921460
>One of them will only display SNES' image in rainbow colours (27") and one will only do black and white


I think one of your TVs is gay and the other one is racist

>> No.4921478

Have you opened the SNES up and taken a look inside? I'm no repairman but maybe something needs to be resoldered

>> No.4921490

Have you tried hitting the TV?

>> No.4921495

>>4921490
I'd do this all the time and it always worked
there was a certain sweet spot on the plastic that gave a good hollow thunk

>> No.4921496

>>4921478
I'll check out the inside of the snes once I can use the right screwdriver. Nintendo used those shitty proprietary screws.
I'm hoping that will be what can fix it since I'm all out of other ideas.
>>4921490
Yes, many times. It's worked in the past but I'm afraid my luck's run out.

>> No.4921501

>>4921460
>>4921496
I should add, I have tried cleaning both the cartridge slot and the av contacts in the system with rubbing alcohol, to no avail.

>> No.4921508
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4921508

>>4921460

>> No.4921509

>>4921496
>>4921501
Good luck, anon. It might even just need a good cleaning out, you never know for sure

>> No.4921907

>>4921460
ask this dude to fix it for you /thread/4917416

>> No.4921918
File: 650 KB, 764x524, brokensnes.png [View same] [iqdb] [saucenao] [google]
4921918

I had this problem with my snes https://www.youtube.com/watch?v=dT9o6S2DnrU

>> No.4921951

>>4921907
lemme fix that for you: >>4917416

>> No.4922020

>>4921460
Clock drift.
The master clock oscillator has drifted out of spec far enough to not produce a proper color signal. There's some way to adjust it, google it.

>> No.4922049

>>4921472
>Underrated post

>> No.4922148

>>4922020
Looking into this, looks like it could be the fix I need. Thanks for the suggestion.

>> No.4922156
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4922156

>>4921472
wew lad

>> No.4923153

>>4921951
Thank you anon. it's been a while and I forgot how to link threads.

>> No.4923792

>>4922148
It's the adjustable cap in the front. I think front left of the board. It's green. Just be careful when adjusting it. Try pushing on it to see if it makes any difference in color. If it does then you know it's that part.

>> No.4925175

>>4921460
This is 100% a problem with your TV and not your SNES. Focus troubleshooting the TV.

>> No.4925342

>>4925175
I'm not about to crack open a CRT and get myself killed.
Besides, if it was just a TV issue it wouldn't only be affecting the SNES, and it's multiple TVs of the same make.
The issue is more likely the specific type of TV has a harder time reading the SNES' retarded signal, so making an adjustment to how the SNES is giving off that signal should theoretically fix it.

>> No.4926109

>>4925342
>not about to crack open a CRT and get myself killed
The danger these things pose is way overblown. Don't touch the flyback transformer or fuck around with the cup covering the connection to the tube and you're fine.

>> No.4927157

>>4925342
>It's not a TV-issue
>but it is.
you're apparently lucky enough to have a CRT which doesn't like SNES' just slightly out-of-spec signal, which pretty much every other CRT on this planet manages to swallow.
congrats, I guess.

>> No.4927221

>>4925342
Work with one hand, like if you are fencing, do not touch conductive objects with another, do not stay on conductive floor, do not use conductive table.

You probably need to discharge the capacitor(s) in power supply unit. A light-bulb (matching the voltage) with clips should do the thing. Discharging CRT itself has been explained a thousand times.

>> No.4927291

>>4925342
Get another cancer ray tube free or cheap. Slot mask looks better anyway.

>> No.4927405
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4927405

>>4927221
>A light-bulb (matching the voltage) with clips should do the thing
Where does I find 30KV lightbulb?

Should I ask this guy if he has a spare?

>> No.4927457

>>4927405
PSU capacitor is around your local 127/230/whatever Volts. I mean, don't be stupid enough to use a small lamp from some flashlight.

>> No.4927474

>>4927457
Oh I see now. Sorry thought you were referring to discharging the CRT anode. So proud of my RtZ reference too...

Surely those caps carry a hefty whack of current though, enough to instantly blow a lightbulb even if rated for the voltage? Would a heavy duty resistor not be eminently more suitable for this purpose?

>> No.4927489

>>4927474
Surely those caps carry a hefty whack of current though, enough to instantly blow a lightbulb even if rated for the voltage?
That's not how current works. And a light bulb IS a beefy resistor.

>> No.4927652
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>> No.4929254
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4929254

>>4927157
>>4927291
Turns out it wasn't a TV issue after all, imagine that!

>>4922020
Thanks again, without this response I might never have figured it out.