Need help piecing a K6100 back together

Black Matrix

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Hey Guys,
Here's the deal. I purchased a couple 6100s off the bay a while back while the getting was good. One had a tube, the other was just a board set. Recently found a space duel so I thought I would begin repairing and rebuilding the one with the tube. Did all the major rebuild repair stuff. Bobs regular & deluxe cap kit, new flyback, and an lv2000 kit. But when I began reassembly, I forgot about the plug that goes from the HV board, to the B+/25volt plug of the neck board, to the 4 pin deflector board plug. A stupid mistake I know. But hey, I have seen boards with with unused plugs before, and honestly, I don't think this monitor had it to start with. Or if it did, I have misplaced it somewhere while I rebuilt the boards. So when I powered up, I had the lv2000 leds on and the spot killer would go off after about a second. I kept trying to figure out why I had no picture. After about 4 or so power ups, the spot killer stayed on. At first, I thought I had no HV since I had replaced the flyback and thought I had done something wrong. After I figured out that a major plug/wiring harness was missing, I got one off the spare chassis and powered up. Now I get the very bright spot in the center of the screen. Does anyone have any suggestions as to what I have screwed up. I think I am halfway there, I have HV and I had the chatter that goes with the vectors. Or at least I had it before the spot killer led started staying on. I have pretty good skills at monitor repair, but I haven't messed with a 6100 in a year or two and I am admittedly rusty. Any help would be appreciated.
 
Well, first you have to post a pic of the entire setup, so we can see if anything is missing. Then a pic of the front of the monitor with the game on so we can see exactly what is going on.

During your rebuild, did you replace the transistors on the frame (six of them)? And reconnected all of those connectors? And plugged in the big connector from the game harness to the monitor?
 
I'll try to get some pics tomorrow. As for your questions, yes to having the big molex plug plugged in, yes to all 6 xisters replaced, yes to all plugs(I don't think any plug is missing now. And as for the pic of the front of the screen, its just a really bright bluish white dot right in the center. The same thing that causes all the burn in on every vector monitor. No deflection at all it would seem. But like I said, I'll try to get some pics.
 
Turn down the screen control on your flyback! You don't want to burn a dot in the picture tube.

Set the B+ too, since you replaced the flyback you want to be sure that the B+ isn't way too high (or too low). Put the black lead of your meter on the monitor's frame, the red lead on the orange wire going to the neckboard from the HV cage (labelled Video B+ on the back of the neckboard). Adjust the B+ using the pot in the center of the HV cage - need a long screwdriver to reach it with the cage on. B+ should be 180v.

If the spot killer is on, then you should get a blank screen, or a dot if you crank the screen control up all the way. Check to ensure the game is playing blind and that it's securely connected to the monitor.

Incidentally, if you wind up with an extra neckboard amist your broken monitors... let me know... I'm trying to find a tube connector to make an adapter for my tube tester :D

-Ian
 
Its an older monitor so it already has the dot in the center. Plus I didn't leave it on after I saw it.

But I have solved the problem and found the answer. When I plugged the monitor in, at some point the upper pcb plug unplugged and wasn't sending any signal to the board. Replugged it, and I had a picture. I still have a little adjustments to do before the game gets installed, but it should look great. At least now, I don't feel like a complete failure as a tech. Thanks for the help guys.
 
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