I suspect power supply board EAY41391501 rev B for the following indications:
On powerup, red light illuminates. Pressing "ON" blinks blue and relay on p/s energizes. After about 1 second, relay drops out and blue turns steady. After another 4-5 seconds, light turns back to red. Same symptoms with either X or Y boards unplugged. No swelled or leaking caps noted anywhere. Any suggestions and/or voltage measuring points I should check?
On powerup, red light illuminates. Pressing "ON" blinks blue and relay on p/s energizes. After about 1 second, relay drops out and blue turns steady. After another 4-5 seconds, light turns back to red. Same symptoms with either X or Y boards unplugged. No swelled or leaking caps noted anywhere. Any suggestions and/or voltage measuring points I should check?