When in stanby i loose all power

replace power supply .

If you need further help, I’m available over the phone at https://www.6ya.com/expert/richard_b59056c0c62ecb00

Instructions

1. • 1

     Locate the "reset" button on the front of the Wii console. Hold it down for a few seconds to reset the device.
     

   • 2

     Wait for the home screen to appear, then hold down the "power" button on the front of the Wii until the power light turns red and the Wii shuts down.
     

   • 3

     Unplug the Wii's power supply from the wall outlet or power strip.
     

   • 4

     Leave the Wii console unplugged for at least five minutes. Reconnect the power supply and press the power button to turn the Wii back on and complete the hard reset.
     

Try pressing the power button down and holding it for a few seconds and see if your WII comes back to life. When I first got my Wii I would hold down the button just long enough for it to turn green. This seems like a standby mode. To get my Wii to turn off completly I needed to hold down
the button until it turned red and when restarting the WII I held doen the button until the Wii started back up.

Hi there, this information comes straight from Nintendo's website. Anything I'd be typing would basically be repeating what comes from Nintendo directly:
Turn the Wii console power OFF by pressing the POWER Button on the front of the console. Unplug the power cord from the wall outlet for a few seconds. After a few seconds have elapsed, plug the cord back into the wall outlet.
Turn the power of the Wii console ON. When you see the Health and Safety screen, open the small flap on the front of the Wii console to find a red button labeled "SYNC." Press and hold the SYNC Button down for 15 seconds. This will clear all the syncs on the Wii, allowing you to get a clean start to begin the process described below.
After holding the SYNC Button on the Wii console down for at least 15 seconds, you can now "re-sync" your Wii Remotes:
With the first Wii Remote you wish to sync, remove the battery cover on the back of the Wii Remote to find a small red button just below the batteries.
Press and release the small red button just below the batteries on the Wii Remote; the blue lights on the front of the Wii Remote will blink.
Quickly press and release the red SYNC button on the inside of the white flap on the front of the Wii console (picture).
When the Player LED blinking stops and stays lit, the syncing is complete. The LED that is illuminated indicates the player number (1 through 4).

You are not getting the correct voltage into the Wii, this can happen one of three ways. (1) The power converter you have is not converting the power correctly, (2) running on converters are not exactly matching the correct voltage and wattage has strained your power supply and damaged the Wii, or (3) the power supply itself just failed as a result of any number of normal electrical conditions.

Fiend your solution direct from nintendo. Here is your solution....


http://www.nintendo.com/wiiconsole/prob676ijt65/solution

aqwtr-8

According to Nintendo u can try this. 1. push the reset button and if that doesn't work unplug all cords and memory cards (including sd) from wii and unplug av from the wii and the outlet in wall. Wait 2-3 min and then plug it back in. Thats as far as i got because that fixed my problem hope this helps someone!!!

Depending on the chip and who installed it, it is probably shorting out something in your system. Even if the system was working before, it might have shifted or come loose. If it is only shorting your power switch then it would just be a simple adjustment of the chip. However, the chip could have shorted out your main board and when the system powers on, it detects the short and shuts itself off as a fail-safe. Removing the chip *might* fix it if it didn't totally fry the system.

Same problem here...I determined that if you unplug the receiver for a few hours, it will work again for a week or so.  Someone else on this website said that it had something to do with the power relay switch:
http://www.fixya.com/support/t190750-aiwa_av_dv75_powers_off