DV 80T NO DISPLAY, NO 220V ELECTRICITY TO CPU BOARD,

Nino,

Does the unit have enough power to run (220V), also above you only mentioned convection? So is this the only cycle you have issues with? So, bake and broil work fine? The reasons for the question are they function work together for preheat. If all you elements are having issue, then check source of power to element and relay power up at board for the issue. Did this issue start after a cycle (self clean)? Check breaker for 220V, check supply to oven 220V, check power from relay / clock for 220V. If all this is good, check the elements for 220V (use caution when doing this). Get me more information and we can solve this, I seek to locate the problem by looking for power or lack of.

I am under the assumption you understand electricity and how to work with it. If not, please seek a service person to preform these tests or repair.

Look forward in hearing back from you on the progress.

I’m happy to help further over the phone at https://www.6ya.com/expert/gere_bf68e6055dd61249

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Does the display seem a little dim? If so replace the batteries. Anything else may be a furnace issue not the thermostat. Look at the furnace and see if you can view any error codes on the circuit board

You can change the power supply, the whole box and wiring. The pc runs on 12 volts mostly on the board and it is dc. Realize the wall sockets are ac, it has to be rectified anyway. I don't think I would try direct since 250v is considerably higher than the 220v that it could handle, I think it would work but, don't think it would last long before burning out the power supply and cause you to replace it anyway.

Anything in the M socket set should be compatible with your board/chipset. This one is a little faster..... http://www.cpu-world.com/CPUs/Core_2/Intel-Core%202%20Duo%20Mobile%20T7600%20LF80537GF0534M%20(BX80537T7600).html

*check u r electricity line 110-220V
*chek u r DC Adaptor power code
*check u r Adaptor out put voltage 12V
*check u r DC shocket pin
*check u r mother board power section
*take multimeeter then select dc range then chek dc out put voltage
*then chek main fuse and diode

The power supply board has failed, and is not cost effective for repair.

There is no need for region hack on this unit. It plays region free and all PAL dvd's out of the box without reprogram.

are all 3 cycle lights flashing together? if so then the eeprom has blown (the little pcb fitted at 90deg to the main spuel 6 card. This component is very prone to failing where there are power cuts or surges . You will only need to replace the eeprom and not the main card but make sure power is ok before you fit new one or it may blow again.
Regards Kit

just buy another power supply with a higher power for the problem is not on your computer but on the power supply,then try to plug it in a 220v voltage regulator,but i surely recommend that you'll buy a new power supply ok