wg 4600

wade b

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wg 4600 that I cant get to stop rolling. It has been capped and worked good with a sky shark pcb. I put a 48 in 1 in it and i cant get it to stop rolling horizontal or vertically. I have tried adjusting both horizotals and the verticle pots.
 
First, on the 48-in-1 - is dip switch #2 off?

Also, are you sending the sync to the both the negative vertical and negative horisontal sync pins?
 
# 2 dp switch is off. You are talking over my head with the sync wires. it is very close, I can see the games, just cant get it to stop.
 
On the monitor chassis, you have two daughter cards. the one on the left has a connector that brings the video from your board. There will either be 6 pins or 6 pins and 3 pins. Take a pic of how the wiring is currently going to those pins and post it here...
 
Okay.

Has this monitor been capped?

Are the daughtercards seated fully?

Did you try adjusting the horizontal hold pot in the center of the right daughtercard?
 
freshly capped, cards are seated and the card holder is in place, I have tried both horizontal pots on the daughter card. It is very close, I just cant get it to stop rolling. Seems to be more of a horizontal problem. It did work with a sky shark board.
 
Center the h hold pot and adjust L351 (silver square on the vert/horz daughter card)

This can be common after a cap kit on a 4600.
 

looks like theres a ground wire on both connectors in your picture.

i'd try removing the black ground wire from near the red, blue and green wires, or the connector on the left/up.

leave the ground wire on, near the sync or grey/white wires.

did you reflow the daughter cards' pins? where they connect into the chassis? there are cold solder joints there real bad sometimes.
 
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A 48 in 1 has problems with sync sometimes on 4600 and g07 monitors, mess around with sending the sync to just one pin or the other (of the bottom 3 pin connector, DONT send it to the top pin which is ground!)
 
A 48 in 1 has problems with sync sometimes on 4600 and g07 monitors, mess around with sending the sync to just one pin or the other (of the bottom 3 pin connector, DONT send it to the top pin which is ground!)

Sometimes the sync goes out on those boards too. I had one that wouldn't sync up to ANYTHING, tried 4600, 4900, G07, a combo monitor my friend had (takes PC and arcade connections), every 25" monitor I came across, and 3 different computer monitors... wasn't putting out a good sync signal. I just ended up tossing it (against the wall) and being done with it.
 
I am bumping this old post as I found it when researching this problem today:

I had a very similar problem with a 4600 today. It was a 100% working monitor that only had sync problems with 48/60 in 1 boards. I swapped in two different daughter cards and the problem was solved. To me it appears the sync issue has to do with the daughter cards and NOT the monitor chassis. My setup uses the ground on the three pin connector and the sync in the center of the three pin connector only.
 
I think that the multiboards send out a 'weak' video/sync signal, so maybe a different daughtercard was more receptive to it.


As for the 'ground' it shouldn't make any difference if it's on the top, or bottom, or both because if you look at the back of the card, they're connected with a trace anyways. I've seen some of these 4600 daughterboards that appear to have been modified for composite sync, so maybe you need one of those to get the weaker signal to lock in.
 
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