Nanao MS8 Flickering?

[reclaimer]

Sadly, my Nanao 25 inside my Jaleco Pony started flickering.

Any thoughts where to start first? Obviously I should confirm proper power is getting to the chassis, but any hunches as to what to look at next?

Video here:

 

[nem]

I'd check the solder joints for the neck connector on the neck board.

 

[reclaimer]

That’s easy! I might just do a reflow there to make sure it’s all good. Thanks!

Any other ideas?

 

[nem]

Brightness pot (and contrast, if there is one) pot on the chassis, check the solder joints for those and around the area. Spray some contact cleaner on the pots.

 

[reclaimer]

Sadly reflowing the multiple control boards and neck bird didn’t help. Neither did reflowing the neck board.

I see there’s a VR1 pot hidden behind other control boards - now that I see it there, is this to control the B+ ?

Anyone know what voltage it should be set to and where to measure it?

 

[nem]

VR1 is for trapezoid adjustment.

B+ is on the other side of the chassis.

 

[reclaimer]

Thanks.

I think I’m at a point where I’m just going to shotgun recap it and see what happens. Now off to hunt down a list/kit