(Topic ID: 282017)

Lamp Matrix problems Twilight Zone *** SOLVED ***

By Adams_Tales

3 years ago



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Lamp matrix ghosting TZ (resized).jpg

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#2 3 years ago
Quoted from Adams_Tales:

The game was fitted with inexpensive LED's when I got it.

Install incandescent bulbs or non-ghosting LEDs.

#6 3 years ago

I never needed any OCD boards. That is just one's preference. .

#8 3 years ago
Quoted from Roamin:

No, it is not a preference.. LEDs do not act like typical light bulbs

It is a preference. I use Comet non-ghosting LEDs in the inserts and they work for me as the LEDs are either off or on. I use regular Comet LEDs in the GI and turn off the GI dimming in the adjustment menu. Works for me and many others.

I just choose not to put a magnifying glass to every aspect of every game. What's next, you are going to tell me what games to buy?

#9 3 years ago
Quoted from Adams_Tales:

I changed all bulbs for incandescent except popbumpers, startbutton and Buy in button. apparently all is good, but by second look the culprits still glowing slightly though not disturbing like before. But problem is still there. pinballmaniac40 could those 5 bulbs cause that same pattern of ghosting (I would guess no)??

Since you can still see some glowing with regular bulbs, this does not sound normal. Can you go into the single lamp test and see if those are still ghosting when you page through each bulb?

Can you describe how and which transistors you tested?

Quoted from athens95:

If not isn’t the LED’s, it might be a bad TIP 107 transistor on the lower right part of your driver board. These drive the lamp matrix . I see these get weak, or in some cases completely short out. Change the Tip107 on that row and see if it gets better

I lean the same as athens95 mentions.

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