EPSON 1600KIII machine. The problem is that when the power is turned on. The lamp on the panel flashes.
I rely! ! I am flustered at a glance. Hurry up and unplug the power. Remove the machine and see it, it is ok. Insurance has not yet burned. Just inserting the power supply. The phenomenon is still.
depressed. . . . .
Take the smoke. Think about it. The panel indicator can illuminate. Note that there is no problem with the power board. Then the problem must be on the motherboard. I first checked the master triode. (Experienced friend must know what is that. Where is the location) - Normal. Take the circuit forward. The resistance is normal. The capacitor is no problem. Until the ground.
I rely! ! ! ! Continue consider. . . .
Finally, I thought of the protection circuit.嘿嘿. suddenly see the light! ! !
This is the case. .
After fine observation test. Finally, it was found to be due to a small resistance resistance value in the overcurrent protection circuit. I rely! ! ! ! Cry it. It is found that there is no suitable replacement.
