WG K7131: 1-5V adjust? Image rotation adjust?

[Jefferson]

I have a WG model #25K7131 and in the ArcadeVGA info it says my monitor may have a pot or switch to adjust it from 5V signal (jamma) to 1V signal (avga). As of now I'm boosting my contrast and black level up (max contrast seems to 'brighten' the image) on this little monitor remote dangly thing on the back. Is there a 1V setting I'm not seeing? Or an alternate brightness control (there are some pots coming out of the monitor 'stem', but its R G and B, 2 pots each. I don't think its 'video amp worthy'. I can live with it, just nitpicky.

Also nitpicky: I'd love to rotate the screen image a degree or 2 clockwise but cant find a control for it. I could always adjust the Vsize and Hsize to disguise it, but I'm a perfectionist I guess.

[lilshawn]

this monitor has an adjustment on the flyback (has red wire coming out of the top of it, going to the tip of the tube)....adjust the "screen" control up a little tiny bit. until the image is satisfactorily bright when the brightness control is almost all the way up.

as for rotation... short answer: no

long answer...involves loosening the yoke and rotating it slightly... (may end up having to align all the colors again if you don't get it right.) if it's glued on (bonded) forget it. if it's just clamped on...maybe.

unless it's out considerably (1/4") i wouldn't dare. just move your video off the edge of the screen.

[Ken Layton]

Most arcade monitors including this one expect a 5 volt signal not 1 volt.

[Jefferson]

Thanks Ken! I'm using a 1V with the blk level and contrast pot cranked pretty high. It looks great but sometimes I get a bouncing, jolting picture when the action on screen changes colors or flashes (a sudden influx of white, or white flashing really seems to set it off). Also when I pause mame theres a bit of a picture jolt.

Is it because I'm cranking my contrast? Lowering the contrast and black level seems to lessen the jolt effect. Since the AVGA is running 1V and the monitor 'can' accept 1 but is normally 5V, maybe putting in a video amp would let me turn the contrast and blk level pots some?