Atari 2600 model CX-2600 - Video output?

[repetto74]

Hi guys,

 

I picked up today an Atari 2600 model CX-2600. I had this for few bucks without any guarantee it is working. Hi hooked it up to a standard CRT TV with the RF antenna input at the back but I do not know how to tune the TV. The console does not have a power up light so I cannot be sure that power is applied when turning on the power switch.

What should I check first to ensure that the board is correctly powered? I was maybe thinking to go for the composite mod before and check if there is an output on the TV through the video composite inputs.

There is also a Channel Select switch at the back for A or B channel selection. What does this mean?

 

Any suggestions?

Rick

Edited September 9, 2017 by repetto74

[repetto74]

So I managed to tune the TV to the have a display.

 

Poblem :

 

-image is in black and white even with the switch TV TYPE set to color (the TV is a color one of course). All other functions seem to work and joysticks will work.

I did select a manual + a fine tuning and I did get colors but the problem is that it will return to B&W when turning off the Atari and switching it back on.

Edited September 9, 2017 by repetto74

[repetto74]

So I have disassembled the unit. I have read that first thing to do is to turn the pot to fine tune colors. The pot is the white one (regulated resistor) or the red coil in the middle?

 

[repetto74]

Ok looks sorted out now. I had cleaned the unit, added some solder on the swiches solder joints. Now I do have a B&W image for a few seconds then back to color..weird. Anyway I am waiting for the AV composite pad modification to give this machine a video boost!