| Electronics > Repair |
| IT7321 AC Power Source no Voltage on the Output |
| << < (3/3) |
| derZockerMP:
I now dissasembled the whole unit and start tracing out the rough way of the current. I created a poor hand drawn schematic of the divice. But at the moment no shorts or visible burnmarks can be detected... |
| Harry_22:
Are there inside any optocouplers between front panel and invertor except two white ones next to 8pin connector? Another version is that the control signal may not reach the executive part (inverter). |
| Harry_22:
Can you hear the relay operate when you press on/off button? |
| derZockerMP:
Yesterday i found the problem. A nonworking Relay between the Transistor stage and the primary winding of the transformer was the isue. It has a coil Resistance about 700k Ohms. Yust ordered a new replacement and hopefully it will work. Thanks for the help. |
| Harry_22:
Good job! :-+ |
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