John's Arcade Forum - Classic Arcade and Pinball Collecting and Restoring Discussion Forum - RETRO MAME - Nintendo Vs Forum

I hope this is the right forum to post. 

I'm having an issue with my Nintendo red tent as seen in this video: https://www.youtube.com/watch?v=5EIlF-rIVq8

The colors seem to be flipped and the picture shifts down. The shifting picture was there previously and I was hoping a shotgun approach would fix this issue.  Do I have something hooked up wrong with the colors?  I've been playing around with the adjustment pots, but can't get anywhere.

I just finished recap'ing the monitor, installing a new HOT and flyback. I went as far as replacing the filter caps too.

Any advice?

For the wiggling picture you should try reflowing solder on the big white resistors.
I had the shifting issue on my donkey kong until I reflowed.

Thanks!

I managed to figure out the inverted colors.  I remembered that Nintendo has a switch on the PCB. Flipped it and all was good, but I went to adjust the horizontal and the screen went black. The game is now playing blind, but with horrible sound  ???  I'm guessing the next step is to check B+ and go through the test points.

No glow in the neck.  I checked the fuses and they're good.  At a loss now.

In frustration, I rebuilt the other monitor (caps, flyback) and it is working well, but I would love to get the blind monitor working now.

Any ideas?

Sounds like HV shutdown. Try flipping the switch back, and resetting the controls to where they were and see if it comes up.

I wonder if this monitor is fitted with some kind of inverter PCB

Switched the switch back and turned the pots back.  Nothing.  Same issue - playing blind.

Guess it is time to go through the flow charts in the manuals and probe the test ports on the boards.

if the sound is all messed up too maybe the b+ is way low. Which would mean something broke and its dragging the b+ down.