I have no display lights ;possible causes - Aiwa AV-D67 Receiver

It is possible that the issue you are experiencing with your Vizio M55Q6M TV could be caused by a problem with the backlight. The backlight is responsible for illuminating the display on the TV, so if it is not functioning properly it can cause uneven lighting or areas of the screen to appear darker than others.
Other potential causes of the issue you are describing could include a problem with the display panel itself, or an issue with the TV's software or firmware.

Possibly a bad door switch, but many, many other possible causes.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/david_29ad5d1dd86564b0

Lights lowering in the kitchen when turning on microwave ...

diy.stackexchange.com/.../lights-lowering-in-the-kitchen-when-turning-o...

Nov 4, 2012 - Lights lowering in the kitchen when turning on microwave oven: symptom of an ... In the best case, this may be normal if the dimming is minor.

Possible causes of dim Microwave Oven display ' All About Circuits

forum.allaboutcircuits.com > ... > Electronics > General Electronics Chat

Jun 13, 2013 - I've seen some Microwave ovens that will not display a backlight anymore. They still work, but the display is so dim, you have to be inches away to. ...Monitoring the output of a light-dependent resistor, or photoresistor, allows ...

What Is Causing My House Lights To Dim?

blog.1000bulbs.com/what-is-causing-my-house-lights-to-dim/

Possibly the temperature sensor is faulty(out of spec.) and it will cause that problem or the display unit is faulty. Suggest you replace both if you decide to replace the display.

Hi there,
Check my Tip, to see if this is the possible cause of your faulty display.

How to repair No Display on Kenwood faceplate


Cheers,

see the error +causes +remedy:God bless you

Description
Errors 00 through Error 04 check upper PCA memory locations, RAM memory locations and
EEPROM checksum during the power up test sequence. If a fault is found during the power up
test sequence, the appropriate error code will be displayed.
Possible Causes
1. These errors messages almost always indicate an upper PCA problem when they are
consistently displayed. Failures causing these error messages to be displayed are rare.
Possible Remedies
1. If the error message is consistently displayed when the unit is powered up, the upper PCA
should be replaced. It is possible to see one of these messages displayed intermittently due
to external causes. If the units A.C. input significantly dips during the power up test sequence
the test could fail resulting in one of these messages being displayed. Treadmills operating
on non-dedicated A.C. circuits may see these messages displayed on an intermittent basis.

that problem is usually cause of bad T-con board,,simply replacing that board can possibly fix the problem

Error description:

The Attention (red) light is blinking. There are six possible causes that will display the Attention light pattern:

-Paper out
-Door open
-Print cartridge missing
-Paper jam
-Paper sensor jammed
-Duplexer error

Solution :
After the cause of the problem has been addressed, pressing GO will cause the printer to attempt to recover from the cause of the error. If the printer is unsuccessful, it will continue to display the Attention message until the cause is remedied.

Pressing JOB CANCEL will cancel the print job and the printer will return to the Ready state (Ready light on) unless there is a paper jam still in the printer or the print cartridge is not in the printer.

For more details visit the link below :

Resolve Printer issue

I have found in some situations the cause is in the output stage of the audio ic's, the safety circuits disable the outputs and when that happens the B+ to the display is not present. But it is possible the processor ic has failed causing all functions to be dead. One possible solution is to unplug the receiver for at least 30 minutes to see if the processor will reset. The final option is to have it checked by a professional.

No that would cause the check engine light to come on possibly but not the oil light. Check the brake fluid level. This is often low and causes this problem.