battlezone issue.. image is flipped horizontally.

Malice95

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So I have an open face battle zone. Ie: no mirror. I have a spare board set
for it that works great. I just loaned it to a friend to run in his normal battlezone.

The board works fine in his, game acts normal, but the image is backward.
Flipped horizontally.

I know the monitor is in right as the deflection board is on the the left side
looking at the back of the cab (how it was before).

I also replaced the monitor at the same time with one out of an omega race.

Any idea what could be going on? I dont see a dip switch that could flip it
horizontally.
 
not sure how vectors are vs raster, but id assume you could flip the yoke wires and get the image to display properly...
 
Okay but if its the wiring harness.. then shouldnt it be the correct orentation?
The board was put in a normal battlezone.
 
And that wiring change would flip the image vertically so it looks right
with the mirror. The image is actually flipped horizontally.
 
Nope, the conversion flips the image horizontally. The mirror and monitor orientation thing is a bit confusing unless you think about it carefully, and perhaps draw a diagram, or just look in a mirror at a monitor in the two orientations in question.

Anyhow, the conversion process is detailed here: http://arcarc.xmission.com/PDF_Arca...184_1st_Printing_Open-Face_Conversion_Kit.pdf

You should find a jumper wire in your harness between pins L & P. If you're open-face BZ lacks that, then it's possible that someone hacked your PCB rather than installed the harness jumper to accomplish the image inversion...
 
Thx Darren, couldn't remember where that info was at. Knew it was a simple pin swap just like the Asteroids one.

Nope, the conversion flips the image horizontally. The mirror and monitor orientation thing is a bit confusing unless you think about it carefully, and perhaps draw a diagram, or just look in a mirror at a monitor in the two orientations in question.

Anyhow, the conversion process is detailed here: http://arcarc.xmission.com/PDF_Arca...184_1st_Printing_Open-Face_Conversion_Kit.pdf

You should find a jumper wire in your harness between pins L & P. If you're open-face BZ lacks that, then it's possible that someone hacked your PCB rather than installed the harness jumper to accomplish the image inversion...
 
Do L and P have to be combined (linked) or just swapped? I've tried every combination of L, P and ground and still have a reflected screen or get spot killer. Same issue as OP but in a Red Baron with a V2000 monitor.
 
Do L and P have to be combined (linked) or just swapped? I've tried every combination of L, P and ground and still have a reflected screen or get spot killer. Same issue as OP but in a Red Baron with a V2000 monitor.

The subject X-invert was for a Battlezone, which had most units shipped with a mirror, but also had direct-view "open face" units.

I've never had a Red Baron. However, it looks to me (from the schematics) like the vector output circuitry is identical to Battlezone.

The L & P thing: L is the "X-INV" line. It should normally be pulled high (5V, interal to the PCB with a pullup resistor). P is just a convienent ground point in the harness. I wouldn't think (on an original harness) that there should be anything in either of those positions in the harness. The conversion instructions call for the installation of a jumper (a wire) to connect them together. This will pull the X-INV line (L) low, by tieing it to a GND line.

In other trivia: There's also a "Y-INV" line, at "K". Grounding it should invert the video on the other axis.

Finally, "the other way" to reverse the image (if the bilateral switches and/or inverter in the INV circuit are hosed) is to swap the output lines: T & 16 for the X-axis, 17 & U for the Y-axis.
 
Thanks Darren. Both L and P had wires in the harness originally. I'll jump them together tonight and see if it will flip back to the correct way.
 
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