Had 2 bulbs that wouldn’t light 5mil mid right that was all,,, after a while now 5 mil lower right isn’t working, 5 mil up right dim sorta flashing, 5 mil low left , mid left and dead end also out now, obviously tried new bulbs what’s next ?

Yes they are the 555 bulbs into socket into pc board but it was only the one board and two bulbs now it’s all the 5 million bulb and board , just wondering if they have something in common

I tried the tabs on ends no good

So for some reason only the connectors on the 5 million bulb (3 different boards) need reflowing?

Yes all those you have colors around have. Stopped working initially it was just 72,73 now it’s every one you have marked in color and what is odd is 74 works and it’s on the same board as 71,72,73,,, also 57 works and it’s on same board as 75,,, it might be a reflowing issue but it seems strange what’s happening , I will get back at it tomorrow , the back hurts bent over too long lol

Ok I reflowed the pins on two of the circuit boards the 4 lamp ( it has 3 5million bulbs 1 power payout bulb) and the 3 lamp ( 2 5million bulbs 1 dead end bulb) still scratching my head , I ordered a bunch of new lamp sockets but I don’t expect that to solve this,,, is there some checks I can make at the power driver board ?

Ok just so I am doing it right , red to one side of board where socket sits and black to other side socket sits??? TIA,,,what voltage should I get ?

Red meter lead on one side black on other side?

Can you post which one you recommend? I see a few but not seeing what I can relate to,,,, I just want to tell you that I appreciate all this and how men like yourself are willing to share your knowledge with newbies like myself

Oh ok I understand and thanks

I got confused cause I didn’t see the lamp socket near the battery but I get it

Lights all fixed changed 7 bulb sockets that looked perfectly fine BUT apparently they weren’t ,,,, thanks for all help