Hello- let me thank anyone in advance for helping me with my problem- My electronics knowledge, is very limted, so I apologize in advance. I have a circuit board which has a surface mount resistor mounted between the +12v and a small capacitor. The resistor burns out after about 15 minutes of use. The board goes into a video game/redemption machine that has several (7) DC motors as well as display LEd's and other lights, etc.
When I started repairing this game- I noticed the resistor appeared burnt. I sent the board of for repair from one of our distributors. (BTW the resistor is not marked, so I don't know the rating-nor do I have schematics) The board was returned, and game play was fine for about 15 minutes. Then the game went dead again.
I'm currently metering the power supply, with no load it shows a steady11.54 VDC, when I put a small motor on it , the power drops to around 11.41 VDC.
Is it possible the power supply is causing this resistor to burn? If not, what should I look for?
If anyone cares to help, please do!
I would appreciate a response to my Email @ firstname.lastname@example.org, or I will check back here occasionally.
I will gladly send someone a few bucks if they help me fix this problem!