neotech 2701 no red..

StreetzKing

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I just turned my rush on and have no red at all, nothing, not a single glimmer of red. It was mint 2 days ago. what does this mean. .. i hate this hobby
 
swap the red transistor with a green or blue one. (on the neckboard)

you might get lucky and it was just cold solder and you get all 3 colors back. heh

check your JAMMA harness too, try wiggling it, your red pin might be janky. happened a lot on that Midway/Atari shit of the time.
 
The tube is gonna lose 100% red in one day? Without signs of failing

Sometimes.

Try checking all the usual stuff like mecha187 mentioned.
I was just making note that the tubes (particularly the Zenith brand) they sent those out with are notorious for failing colors.
 
those tubes are known to be schizz..


id start by the obious, wiggle conectors... if the red comes and goes while wigging the video innector check for cracked solder joint on the header pin. if no issue foud also swap the red video input wire with the green, just to make sure the red input is good....if the screen gets a green pic with the red input wire, boardset and wiring is good.....




from there try swapping transistors etc...worst case youll need somebody with a rejuve to test the tube for ya...
 
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