RGB to NTSC converter wiring question

Retrogamer

Retrogamer

Troller of Old Men,
20 Year Member
Joined
Apr 1, 2002
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2,188
I have a JROK RGB to NTSC converter for my supergun ""WORKS GREAT"" ....today I was testing the wires because the quick crimp connectors I was using were loose and I lost the image .

while re-wiring the unit I had 4 of the 5 wires connected only one left was the ground . but without the ground wire connected to the converter the image came up ! And it was shockingly clearer and crisper ! with no wavy lines going across the screen . I want to know if its a bad thing to leave the GND un-connected because surely enough when I re-connected the GND it was back to its original quality .

Please help me with this question .
The screen looks AWESOME without the GND connected but I dont want my supergun to be damaged either .

George
 
D

Devilman78

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Oct 21, 2000
Posts
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What power supply are you using?

Try swapping the power supply, I've seen that happen before.

I've noticed big power supply's without 3 prong plugs do that.
 
Retrogamer

Retrogamer

Troller of Old Men,
20 Year Member
Joined
Apr 1, 2002
Posts
2,188
Originally posted by Devilman78:
<strong>What power supply are you using?

Try swapping the power supply, I've seen that happen before.

I've noticed big power supply's without 3 prong plugs do that.</strong><hr></blockquote>

I am using the original MVS power supply .

But s it ok to leave it un-connected ?
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J

JHendrix

Jello Pudding Pop, Y'know? Like that whole Bill C
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Jun 27, 2001
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Well, if you're TV hasn't exploaded, and the converter hasn't melted down then I guess it's fine. I still don't know how you can get a picture w/o SOME kind of ground connected, there just has to be, the converter chip wouldn't function w/o ground.

Peace

JHendrix
 
Rigel

Rigel

The Ultimate 11
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Originally posted by JHendrix:
<strong>Well, if you're TV hasn't exploaded, and the converter hasn't melted down then I guess it's fine. I still don't know how you can get a picture w/o SOME kind of ground connected, there just has to be, the converter chip wouldn't function w/o ground.

Peace

JHendrix</strong><hr></blockquote>

The JROK converter takes in 2 grounds. One that goes with the +5 volts, and one that goes with the RGB. Maybe the lines cross on the board so that it's alright if only one is connected.
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D

Devilman78

Camel Slug
Joined
Oct 21, 2000
Posts
521
Originally posted by JHendrix:
<strong>Well, if you're TV hasn't exploaded, and the converter hasn't melted down then I guess it's fine. I still don't know how you can get a picture w/o SOME kind of ground connected, there just has to be, the converter chip wouldn't function w/o ground.

Peace

JHendrix</strong><hr></blockquote>


It must be pulling ground off the TV.
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M

MilkManX

I Love Frames!,
Joined
Jun 12, 2002
Posts
3,791
I am getting a Super Nova used next week and it sometimes turns the screen all green. Hmm I will have to check the wiring.
 
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