Teknotoyz
Well-known member
Need some electronics Help - Big Choice Marquee lights
I had purchased this crane 2 years ago, it had no sound and a separate lamp board that flashed the lights in a chase pattern.
Recently, I purchased a newer crane (same style) that has the sound and display.
There also was no marquee light display (lamp board was not connected)
The plan was to swap the internal boards to update my existing crane.
I also had no desire to repeat this:
Once I got everything set up, the Marquee lights just flash on/off, no chase sequence at all.
I checked the "Winner" output, and it is also flashing in unison with the lights.
There are 4 "zones" and 1 "Winner" output.
From what I can tell, by the blurry schematics, the 120v circuit is on the lamp side only.
The main board supplies ground and 5v for the logic, and a "trigger" which I assume is the "Winner" light output.
I tried adjusting the "Lamp Speed" and the flashing just speeds up or slows down, again all lamps are flashing in unison.
So my question for those that know the electronics better, what should I check first?
My guess is that U5 looks to be the likely cause.
Is U5 a programmed chip? looks like "PROM" is on the schematics.
If so, any idea on where to obtain a new PROM?
I had purchased this crane 2 years ago, it had no sound and a separate lamp board that flashed the lights in a chase pattern.
Recently, I purchased a newer crane (same style) that has the sound and display.
There also was no marquee light display (lamp board was not connected)
The plan was to swap the internal boards to update my existing crane.
I also had no desire to repeat this:
Once I got everything set up, the Marquee lights just flash on/off, no chase sequence at all.
I checked the "Winner" output, and it is also flashing in unison with the lights.
There are 4 "zones" and 1 "Winner" output.
From what I can tell, by the blurry schematics, the 120v circuit is on the lamp side only.
The main board supplies ground and 5v for the logic, and a "trigger" which I assume is the "Winner" light output.
I tried adjusting the "Lamp Speed" and the flashing just speeds up or slows down, again all lamps are flashing in unison.
So my question for those that know the electronics better, what should I check first?
My guess is that U5 looks to be the likely cause.
Is U5 a programmed chip? looks like "PROM" is on the schematics.
If so, any idea on where to obtain a new PROM?
