Digital display lighting

You would have to send it to the manufacturer. I know how but have no schematic to accomplish this. Brightness is controlled by a resistor that limits power to the display. Sometimes it is done digitally and involves reprogramming.

Behind the display module there is a capacitor. It needs replacing. They bulge, split and fail.

As some others have suggested elsewhere, I purchased and applied Display Dimming Film available online. I suggest using a single piece that completely covers the opening (will probably require trimming to fit) rather than having two or three smaller pieces abut, otherwise sparkles of light will shine through the spices. Once you have this film, you will likely find other uses for it. For example a digital clock near a TV, or a overly bright power indicator light on desktop computer speaker, or the power indicator on the desktop computer itself that stays on in standby mode through the night.

Hi,
Dimmed light might be caused by a slight contact between the panel's connector and the mainboard. Or, there is a dimmer option (feature) in the menu. Depends on model. Some of Panasonic microwave ovens are equipped with such a feature.
Regards,
Dan

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

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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/

I think there are some electrolytic capacitors in the power supply to be replaced.Because there are relatively few, it would be good to change them all for more safety

either the display is bad or the unit may have a setting in the menu for adjusting the brightness level

It's probably a weak VFD tube but it may be that the rear of the display window and front of the display glass are very dusty.

Sometimes you can clean it inside to brighten it up.

At our Web site, we have a video available showing how to remove a typical over the range control panel assembly in under 5 minutes.

Then you can detach the keypad connector (as per attached photo) then remove the control panel screws.

Be careful not to crack the glass display when handling it, or it's a goner.

Then you can use a soft cloth (not a paper towel) and a mild cleaner (not ammonia-based) to clean the front surface of the VFD display glass and the rear side of the clear bezel (display window) that's attached to the keypad.

Direct spraying of cleaners on the keypad and steam from the cooktop can damage the controls.

I always recommend that you spray non-ammonia cleaner on a soft cloth (not a paper towel which can scratch) and gently wipe the keypad.



Some connectors have a lock.
If that cleaning didn't help, then you have a weak VFD.


On a Whirlpool microwave, the VFD tube is almost never available separately, so if it's bad, you would have to replace the entire circuit board.

You can find links to helpful exploded view diagrams and order parts here.

I'd recommend that your bookmark this link to your favorites.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

We repair these on a regular basis for customers nationwide with our guaranteed $39.95 service.

Full details and *critical* safety, disassembly, and troubleshooting info is at Web our site, which is linked at our listing here on FixYa: http://tinyurl.com/yzjozk

GE had a rash of "underperforming" magnetrons on these units. They replace the magnetron, stirrer and high-voltage diode at no charge for parts as long as a GE-authorized service center does the work. Sometimes the unit gets run too long in a failing state and the waveguide and chassis of the oven get damaged. To see if yours is covered, see this bulletin: http://www.microwavedisplay.com/ge_mw_mag_kit_bulletin.pdf Otherwise, you need to contact GE Customer Relations at 1-800-386-1215 as soon as possible and tell them your problem and they will put you in touhc with a local authorized servicer.