Hannes.e

Thanks @CatPix Yes, those are voltage regulators bolted to the shielding. They are actually socketed, so extremely easy to replace. voltage level was a bit under 12V, around 11.85 on my multimeter, but that seems to be within the margins (a datasheet on a random 7812 said 11.5 - 12.5v was within spec). Since I had a 7805 at home I thought I would replace it just in case, but when I was working with that the 5v disappeared completely, then it went back and forth a bit when I was handling the power board, like something was loose, so I didn't really trust it. So instead I tried to replace the power supply with a combined 5v+12v supply in my box of old power supplies (think it came with some Logitech speakers). (I connected the power supply to the cable from the power board, and replaced the regulators with wires) With the "new" power supply the console work somewhat better: https://photos.app.goo.gl/2Nbyd9TcxaA24aqi8 I get the G? and when I cold start it I have time to select the game and see it start, but after something like 30s it cuts out completely like before. I the video I connect the power, then the video cuts out, after that I disconnect and reconnect the power and it starts again, but this time it cuts out after only a few seconds. (If I wait a while I can repeat this) With the new power supply my multimeter indicates voltage levels are holding steady very close to 5 and 12 volts, but I guess It still could be disturbance on it the multimeter won't pickup. Anyone knows how much 5v and 12v would reasonably be consumed by a fairchild II ? My power supply is rated at 2A 5V + 2A 12V. Do you think it could use the unregulated 5 and 12 volts for something, and be dependent on it being >5 and >12 ? I'm thinking that since the Fairchild (I) has an external power supply with voltage regulators in the power supply unit (as I understand it) the mainboard shouldn't use the unregulated power... Next steps are trying a bigger power supply (to rule out that the supply I found was to weak), I think I have a PC power supply somewhere, should be way more than enough. I will also get a new 7812 voltage regulator and try the original supply again with new regulators. But I am a bit concerned that there is something more/else that is wrong, since I still have the "cold start/warm start" effect. Now when I'm writing this I realize there is also a small cable from the power board directly to the antenna output, something about DC level on the antenna output perhaps, and I didn't replace that when I used the new power supply. However, I still don't think that would cause the console to cut out after a while like it does.

Troubleshooting a Luxor Video Entertainment Computer. It has detachable controllers so it's a Luxor Video Entertainment Computer "II" I guess (?) Is there some schematics for the Fairchild channel f II ? The ones I have seen seems to relate to the first version. When starting it I get video like on the attached photos, for a couple of seconds, then the video just cuts out and nothing more happens. When I start it the first time after some rest, I get a couple of seconds more than after just a quick off/on (so I'm thinking some capacitors, possibly power supply is involved). With somewhat limited electronics skills I have examined the 8-wire cable from the transformer/buttons board to the mainboard and my theory is that the pins are: 1. Power (unregulated 5V?) - 9.5V on my unit 2. Power (unregulated 12V?) - 19V on my unit 3. MODE button 4. TIME button 5. HOLD button 6. RESET button 7. START button 8. GND Any comments or tips on how to proceed is welcome !

second try: Have bought a unit that I presume is a PAL heavy sixer. It came with a swedish language manual, a 220v power adapter, and original box (but I have no way to know if these parts where originally sold together) The front is that of a heavy sixer.

Have bought a unit that I presume is a PAL heavy sixer. It came with a swedish language manual, a 220v power adapter, and original box (but I have no way to know if these parts where originally sold together) The front is that of a heavy sixer. Is there a way to know the manufacturing date ?