This board fuses the individual TIP36C and provides an LED indicator for each one
precise volume adjustment without the "crackling" often found in aged original units
even if it's the IDC type
Universal Compatibility: Works with both LED and original plasma displays
always verify that board components—especially the transistors—are not dead-shorted
Special Solenoid Saver Board with LED indicators - Version 4.1 Williams Sys 9-11, Data East, Sega Header Height:Standard 18mm header This board fuses the individualSpecial Solenoid Saver Board version 4. 1 ***Note*** The Williams System 3 7 requires the 30mm variant Functionally identical to version 4. 0, but a bit more streamlined The Special Solenoid circuit is protected by a single, 4A fuse. If a switch that drives a Special Solenoid gets stuck on, that corresponding coil locks on, and heats up. After several minutes, the coil gets so hot, that the insulation around the winding begins to burn and the coil