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Title: IGT S+ - no power to DOOR emitter optic. FIXED!!!! Post by: FOXSSLOTS1 on July 04, 2012, 12:21:59 PM Have a bad MOTHERBOARD (not the wiring - not the mpu etc) - problem is in the mother board - get 7v to the receiving optic - but the emitter is dead. traces "look" good - there isn't much on the mother board - so what would be the cause? I am short on motherboards - bought a bunch of macihines with blown batteries and destroyed motherboards hence the need to try to fix one.
Title: Re: IGT S+ - no power to DOOR emitter optic. Post by: Buzz on July 05, 2012, 12:45:00 AM Have a bad MOTHERBOARD (not the wiring - not the mpu etc) - problem is in the mother board - get 7v to the receiving optic - but the emitter is dead. traces "look" good - there isn't much on the mother board - so what would be the cause? I am short on motherboards - bought a bunch of macihines with blown batteries and destroyed motherboards hence the need to try to fix one. :103- :103- Barry maybe I'm all wet, but why would the receiving optic even need power ???? I admit I've never taken a meter and checked. Title: Re: IGT S+ - no power to DOOR emitter optic. Post by: CommTech on July 05, 2012, 02:09:09 AM Looking at the schematic, I see that the Door Emitter Optic line travels down into the Motherboard through J3, then right back out through pin 2 of J10 (Door LED -), then it loops right back in again to pin 1 of J10 (LED +).
So the Emitter LED optic go's through 4 separate molex plugs by my count. Any one of those may have bad pin contacts. I would think that would be more likely than an open motherboard trace. You might start by checking motherboard pin 1 of J10 to see if you have voltage there. That is the first point of exit off the motherboard. Title: Re: IGT S+ - no power to DOOR emitter optic. Post by: FOXSSLOTS1 on July 05, 2012, 07:20:43 AM thank you - will check those points - my schematic is a bad copy so i could not find these points
Title: Re: IGT S+ - no power to DOOR emitter optic. Post by: FOXSSLOTS1 on July 05, 2012, 01:33:13 PM FIXED!!! - there was a small dent/break on the trace for pin 1 to resister? jumped and the mother board works!!! thank you again.
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