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Author Topic: Videopac G7401: No image on TV  (Read 77 times)
David
Trying to get the cartridge in...
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Posts: 7


« on: June 18, 2022, 01:30:35 PM »

Through an acquaintance who lives in France I got this console. I am from Spain.
But I have a problem... although the console turns on, it does not show an image on the screen.
The screen automatically switches to the scart channel when I turn on the console, but it doesn't show anything.
I know it turns on because I put the Wilco cartridge in it and it turns on.
He sent me two rgb cables and with both he does the same.

Before sending it, he showed me a photo where he turned on and showed an image.

I have tried it on several crt tv and several led.
I have opened and cleaned it.

Aid.

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scouter3d
Trying to get the cartridge in...
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Posts: 18



WWW
« Reply #1 on: June 19, 2022, 08:31:30 AM »

Hi,

i am not sure how the pinout of your SCART cable is...

Automatic switching to SCART Input is a good sign, but not the whole process...

For a picture to show the TV must set his SCART Input to RGB Mode, this can either be done in the TV Setup (on some TVs) or by providing a "switch to RGB" Signal on the SCART Input...

Quote: RGB mode select ("Blanking" Scart Pin 16): Some TV's let you toggle RGB mode via the remote but to force it, put 1 to 3 volts on this pin. (5 volts via a 100 Ohm resistor will set it at 2.1v due to the 75 Ohm load in the TV)

(Quote is from: http://martin.hinner.info/vga/scart.html)

Hope this help...

Cheers, TOM:0)
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David
Trying to get the cartridge in...
*
Posts: 7


« Reply #2 on: June 21, 2022, 06:16:29 PM »

Hi,

i am not sure how the pinout of your SCART cable is...

Automatic switching to SCART Input is a good sign, but not the whole process...

For a picture to show the TV must set his SCART Input to RGB Mode, this can either be done in the TV Setup (on some TVs) or by providing a "switch to RGB" Signal on the SCART Input...

Quote: RGB mode select ("Blanking" Scart Pin 16): Some TV's let you toggle RGB mode via the remote but to force it, put 1 to 3 volts on this pin. (5 volts via a 100 Ohm resistor will set it at 2.1v due to the 75 Ohm load in the TV)

Ok, I'm going to modify the rgb cable of the console.

Let's see if we are lucky

(Quote is from: http://martin.hinner.info/vga/scart.html)

Hope this help...

Cheers, TOM:0)

Okay.
I will try to do what you tell me.

Thank you
« Last Edit: June 23, 2022, 10:38:52 AM by David » Logged
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