Questions & Answers for: ac pcb buttons working

working fine last night and this afternoon. Can someone help. You would have to make some checks first. If completely dead, first you can check and see if fuse blown in powersupply. If not then: CHECK

...AC won't come back on after i turned the power at the wall off and then on again. It was all working brilliantly till then and now i can't get a bit of life out of it. I can't even tell if any power ...

...AC power plug 2 Drain all liquids from the DGB-500 (DGB-550) 3 Unscrew (5 screws) the top front control panel plate having the timer display and 6 buttons 4 Unscrew the printed circuit board (PCB). ...

...AC power supply working, but no power going to printer. it will not turn on,even.. is there a "circuit breaker", or fuse, in this thing that i don't know about/or where it is?? The fuse is ...

...AC power to the inverter. The link 2000 is not lited. How do you get the PCB out all the 4 screws are out and clips are pushed off the pcb contacts on the sides. Unscrewed the antenna, but not the ...

...AC-off detect) at pin 3 of PC9A21, if missing replace PC9A21 part # 268P058020 on the Power PCB. 2. LED does not blink at plug in. Check for 5-volts DC at connector RF pin 3 (system reset) if low or ...

...AC for 1 hour and then turn on its working normal for several days (week) the check button is showing H16 now is -2°C and is working, what is wrong? what means Outdoor Current Transformer open ...

...PCB... So just just picked up 2 from a mcdonalds service call ..replace battery 12v 4ah battery ..connect to ac...hold down power and mute button till systems beeps ...continue to hold to so see all ...

...PCB on which the relay sits, to loosen the 4 solder points of the relay. The relay is Type DG1U, 12VDC coil , switching contacts 8A 250V AC and is a Chinese brand DEC. They are sold by Aliexpress, ...

...PCB (you've already unplugged the AC power supply, I'm hoping! lol), remove the mounting screws, and inspect the underside of the PCB. Inspect very closely for signs of overheating, high resistance ...