Pacman problem Please help!!!

[berlincam86]

I won a pacman pcb on ebay and I had a pacman cabinet that was converted to some other game. I got the power supply and harness off ebay and I wired it up as best as I could. I plugged this board in and it gave me the screen in the picture. It plays or played I should say with sound and all that but I figured by the screen that it was playing upside down. so i was messing with the connectors on the yoke to switch it and i think i connected it wrong because when i plugged it in i blew a fuse. I reconnected it the way it was  put in a new fuse and now the monitor has a white line down the center and the game does not have any sound now. what could be why it was playing like that at first? Im pretty sure my monitor is fried but why is my board not working anymore? Did I blow that too? Please help. Thank you.

[pcb]

Well, just about certain you fried the yoke on the monitor.  Did you put the yoke wires back?  Is the picture above from before you tried swapping yoke wires?

 - Mike -

[berlincam86]

Yes I believe i did fry the monitor. The pic is before I messed with the wires. Thats when it had sound and I can see the game  playing but i was not able to see it. But what im worried about is the pcb. Did I fry that too? So wait I fried the yoke? Not the tube? Damn I threw out the tube I thought I fried the tube. I was going to get another tube but I guess ill have to get the whole thing now.  Oh well Ill learn. Thanks for your help.

[Level42]

You really have to focus on one problem at a time. Why did you go about the hassle of switching the yoke wiring (something even I would not do very quickly) before getting the PCB in running order. So what if it was upside down. That should have been your last worry (it could have been a simple dip switch).

Get a working monitor and work on just the PCB first. There is no way of telling if the PCB has been fried, but I think it's unlikely.

[berlincam86]

Well I was thinking maybe that because it wasnt playing right that just maybe it was because it was mirrored or upside down. I read an artical on the yoke flipping but I didnt remember the part that if you switch the wrong wires you'd fry the yoke (Lesson learned). Still havent figured out why the pcb is not working. I would think it would still have sound if the monitor was not working. So i am guessing I fryed my pcb too. Ive checked all dipswitches. Tried disconnecting roms and reseating them as well as the edge connector. Well guess I cant do much without a monitor. Was just hoping someone else had a similar problem and could tell me what happen with theres.

[RayB]

Why flip the yoke wires when you can just unbolt the monitor and rotate it 180'

[berlincam86]

Yea Couldve done that.  Wish I would have thought of it before i fried my monitor.

[Mauzy]

Why flip the yoke wires when you can just unbolt the monitor and rotate it 180'

I had a pac board that played upside down like yours. I did the tube flipping....

You couldve done worse. I set a pac board on fire few months back. Notice how I said I "had" a pac board that was flipped...

[berlincam86]

Yea So Now I got to get another board and monitor and try again. This time no yoke flippin.

[berlincam86]

Ok got a new monitor. The board was ok. It was a loose fuse in the cabinet. Changed out the roms, the satilite board and what I could with the little chips. moved the 2114 rams around. still the same. Does anyone have a clue what could cause this picture?

[pcb]

Are you talking about the picture in your first post?

I think we need a bit more information about your current status.  Does the game play?  Can you coin it up?  Can you take a new pic?

Best,

 - Mike-

[berlincam86]

Yes its the pic on the first post. Yes it plays and coins up. No I cant get another pic. I took a part off it that I needed. I was just a chip holder. But If i can figure out whats wrong with this Ill put a new chip holder in.

[pcb]

Well, that first pic shows garbage.  Probably a smooshed leg on a chip or a bad LS161.

[berlincam86]

If ls161 is the chip lacated at 5P then that cant be it im using it in another board. No pins are bent or broken that i can find.

[pcb]

5P?  THere is no LS161 at 5P on a Pac-man pcb. 

Anyway, good luck, with no info and now, not knowing what game board you have, I just can't help.

Good luck,

 - Mike -

[berlincam86]

I think its 5P Its at the end of the 5 row. The letters cut off so I just estimated it was 5P. It is a pacman board.

[pcb]

As far as the monitor being upside down...

The monitor should be rotated clockwise from standard orientation, so the the bottom of the monitor is on the left when your are facing the cabinet.