There was some ghosting that I experienced with my WCS94, so if you're bothered by ghosting, yes, you should get the ROM patched with the ghosting/LED fix, or you could by "ghostbusters" or non-ghosting LEDs.

I don't know the answer to this: If you have installed a ROM to eliminate LED ghosting, can you still use standard bulbs with this ROM? If there is a problem with standard bulbs and the non-ghosting ROM set, I would go with non-ghosting LEDs.

I would never go with non ghosting LEDs if you don't have to because they cost more.

Don;t know what the point of installing an anti ghosting patch that wouldn't eliminate ghosting.

Yeah, tbanthony. If you get the ROM patch that eliminates ghosting, you can use any LEDs you want, and you'll get no ghosting.

Just curious, if you have anti-ghosting ROMs, what is the effect on controlled standard lamps/bulbs, not LEDs? None? or?

I would think it's none Minnesota13. AFAIK, the ghosting rom eliminates some small amount of voltage bleed from the insert light circuits that were not enough to light an incandescent bulb, but is enough to make a LED glow or "ghost". Eliminating this small amount of voltage should not effect any other lights from going on and off as they should. Maybe someone with more technical knowledge on the subject can make it sound better than I just did, LOL.

I thought the ROM fixed "flickering" due to the different hz timing driving the lamps, and ghosting was something different?

Maybe it was "strobing"?

I used Pinball Life Ablaze 3's in my WCS inserts and have ZERO ghosting on that pin.

Yeah you know that's weird I noticed that yesterday.

I Like CT Frosteds under inserts. They light them up bright, which is a good thing, but it's an insert so no blinding issues. You can use a mini or ablaze 1 in small inserts, but i find them not bright enough for the normal/big sized.

4's would be too much.

The frosted's from Cointaker should be nice....I like that idea.

My WH2O's GI blinked when I flipped the flippers. It was all LEDs. Is that a form of ghosting or something more?

Naw that's diff'rent. Funny thing is my WH20 ghosted until i updated the to home rom and it fixed it.

This is correct. But the ghosting on Williams games is so minor it's not really worth doing this. But yea, the rom solves any ghosting issues so you don't need non ghosting LEDs.

On my WCS the lights above the ramps (jackpot, ticket etc) would noticeably ghost when I just had ablaze frosted LEDs in there (flicker on when meant to be off). Getting a no ghost rom made them completely off as they were meant to be.

I have CT ultra brights under my PF inserts and love the look of the game but do notice some flickering on some of the lamps.

Where is the best place to obtain this ROM?

I just had a conversation with the developer of the patch software last week about the effect the patch would have on incandescent lights. First thing to note is that the patch is applying lamp matrix code from later B/W games into the older ROM so this code is designed to be used with incandescent lights. Having said this we came to the conclusion that compared to the old (flawed) code, the new lamp matrix code would make incandescents slightly dimmer because you're not getting a current spike every time the column transistor strobes which has the effect of warming the element and making the flash a bit brighter. We also came to the conclusion that you'd be hard pressed to notice the difference between the original and patched code with 44 lamps but it will be noticeable on an insert that has a 47 installed.

<soapbox>
Hopefully anyone who sells this patched code doesn't charge extra for it as the guy who figured this out made it available for free.
</soapbox>

viperrwk

There seems to be a bit of confusion in terminology and what the ROM patch actually does.

The ROM changes the timing of when the row/column transistors are turned off. The row/column transistors have a bit of latency from when the are told to turn off to when they actually do, and the patch attempts to prevent them from being on when the shouldn't. It was a bug that Williams fixed in later ROMs that they released, and the developer of the patch wrote a PC tool that inserts the same code that Williams modified into ROMs that did not have this fix applied when Williams released them.

It will help in cases where you see lamps that are lit dimly when they should be off. In certain cases, it will not completely get rid of the dimly lit bulbs, but it does not hurt to have the patch. It does not affect the voltage at all. It does not require any special bulbs.

If flicker is the issue you're seeing, where a fully lit bulb looks like it is shimmering or strobing, the patch will not help this. The only ways to prevent flicker are to use LEDs with built in circuitry to prevent flicker or to use a board like I designed. I don't want it to seem like I'm advertising my own stuff, but here's a link anyway:
http://pinside.com/pinball/forum/topic/led-ocd-advanced-lamp-controller-shipping-with-wait-list

Thanks viperrwk, that's what is suspected. Indeed I agree that the revised ROM code should not be sold as such but only as the cost hardware rom itself and effort/cost to produce the the rom.

somebody that can send me the non ghosting rom ?

Shame these are not available to buy in the UK, I have one in my lotr and 4 Afterglow boards in others. I will not put leds in my WCS until I have both the insert and gi boards. The Dimming effect lost is too much. Fish Tales with just leds for example is a strobe fest. Once you see the difference there is no going back.

I recently installed mixed Ablaze from PL in my FT and to my OCD eye they are perfect.

I upgraded ROM to D-6 anti ghost and to be honest didn't notice a difference.

The trick is to get right balance of LED's I guess ?

Looks the same as mine, fast on/off which is like strobing not the same as ghosting. Incandescents will fade on/off and the transition from insert to insert will look smoother when moving from one to the other. You can see what I mean on this papa FT footage.

Love my FT and will be fitting led ocd at some stage as it needs it.

AE895E33-6CBC-486F-9CFB-A5D213836298 (resized).jpeg