That's not a valid voltage at all, yet it's not zero voltsĮither.
I measured the voltage on the socketĪnd was perplexed when the reading was about 1.5V AC. I tried replacing the bulb with another #555, but that made no difference. This box has the image of a T-Rex, a lamp matrixĬontrolled lamp on the top, a flasher inside, and a spotlight connected to the GI (general illumination). Jurassic Park has a square box to the left of the T-Rex. General Illumination Bulb was not Working I'd say I'm about 95% done shopping the upper playfield. As I write this, Jurassic Park is operating at 100% and has been "dialed in" Here's a picture of the completed speaker panel with LED ColorDMD.īelow are examples of the display after using a USB thumb drive and downloading theĪll the other entries on this page discuss the various repairs I've done. The same orientation as shown in the picture! CN3 is on the bottom left and CN2 isįinally, using the new ribbon cable included with the ColorDMD LED kit, connect theĭMD logic board (at CN1) to the ColorDMD LED board (labeled "DMD"). The picture below shows all of these cables connected. This is the larger ribbon cable from CN3 and the small 3-pin power cable from CN2. Now we need to reconnect the 2 cables that were removed from the DMD logic boardĮarlier. Note that I (unfortunately) do notĬonnect the other end of the ColorDMD power cable to the connector labeled "PWR" The first picture below shows the location of the power board's 15 pin connector (largeĬonnector on the left) followed by the installed adaptor. The original 15 pin connector to the extender board as well as ColorDMD LED power cable. Remove the 15 pin connector on Jurassic Park's power board and insert this adaptor. This looks like a strangeĮxtender card with a connector in the middle. The ColorDMD LED kit for Data EastĬomes with an adaptor that enables powering the ColorDMD LED. The various connectors now need to be attached. Make sure the upper left and upper right posts have the grounding wires attached. The matching holes on the LED ColorDMD board.Īttach the ColorDMD LED to the speaker panel using the posts and nuts that were previously removed. Now attach the DMD logic board to the back of the ColorDMD LED by pressing the 4 plastic spacers into Using the plastic spacers included with the ColorDMD LED, attach one to each corner of the DMD Mount on the back of the ColorDMD LED board using mounting holes and plastic spacers. Original DMD logic board will be attached. There is also a picture of the back of the ColorDMD LED, where the Now the DMD logic board, which we removed above, needs to be attached to the ColorDMD LED.įor completeness, below is a picture of the front
This might be a little sticky but will come out Lift out the DMD display and put it aside. Remove the high voltage power cable (on the left) as well as the 4 metal posts at each corner You will need to reconnect these when installing the LED ColorDMD board. Take notice of the upper left and right posts and how the ground connectors are attached. The back of the DMD display will now be exposed (shown below). Lift up on the plate to remove it from the posts. You can see the 3 that were removed on the top left, top right and bottom right. Now remove 3 of the 4 metal posts that previously supported the DMD logic board.
The DMD logic board removed from mounting. You can see it was supported by 4 metal posts. The power cable at CN2 and the data ribbon cable at CN3 will be reused. Spend a moment looking at theseģ connections because 2 of the 3 will need to be reconnected later (and a new cable will be used for The 2 ribbon cables and 1 power cable attached to the DMD logic board. The DMD logic board is held in place by 4 screws, one on each corner. As part of the installation, this logic board will need to be removed and attached Unlike Williams pinball machines, the speaker Speaker panel on the playfield as shown below. Start by making sure your Jurassic Park is powered off. Did I mention the T-Rex that eats pinballs? That is truly awesome.
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