Before removing the processor board, check the following areas:
- Check the self test inputs to verify the problem (coin-out)
- Check for obstructions, misalignments, or any physical reason for the coins to pass slowly through the optics
- Check optics and optic wires for damage
- With escalator hopper, coin out optics and mechanical flag may need adjustment or spring may need replacement
- Verify ground lead is secure to chassis and the hopper beau plug is seated firmly
- Visually inspect the wires and connectors
- Perform the hopper self test; if problem recurs replace the optics
- Check hopper plug for 8 to 9 VDC at J/P 19-8 and J/P 19-10 to J/P 19-9
If that doesn’t work, try the following steps:
- Replace the processor board with a “known good” one
- If the processor board seems bad, check eBay for replacement or repair service
- If the processor board is good, then replace the motherboard
- To repair the motherboard, use this diagram to isolate the bad trace
- If the motherboard and processor board are good, then use this diagram to test for wire continuity
Add comment