Question about GE Spacemaker JVM1640SJ Microwave Oven

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Lcd blank LCD display is dark or very faint. Makes it hard to use features

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We regularly repair these control units for customers nationwide by mail for $39.95 postpaid in about a week or so with a one-year guarantee.

FixYa's Web site is currently not notifying us when replies to our Clarification Requests are posted, so please reply directly to me with your full number from the tag on the unit so I can help you with free do-it-yourself tips and/or an estimate.

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

William E. Miller
prototech@usa.net
http://www.microwavedisplay.com


Posted on Oct 06, 2009

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1 Answer

The control display on my microwave is very dim. Is there any way to make it brighter?


If you had mentioned your full model number, we could have looked whether the VFD is available as a separate part in case your model has a VFD display, or whether the whole control board would have to be replaced.

If your model has an LCD type display, it may be weak LEDs or other failing components in the display backlight circuit.

We regularly repair microwave displays for $39.95 nationwide.

It's pretty rare for a microwave to have a display brightness feature.

Let us know if we can help you further.

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The is a prone problem accross the Sharp range where the LCD fails. They can be repaired but this can be quite costly.

Feb 17, 2010 | Sharp R-370E 1000 Watts Microwave Oven

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The microwave does not work.


The first thing I would suggest is a hard reset. Unplug the unit for a minute or so. Then plug it back in, set the clock and try again.

Let us know if the hard reset does not fix it.

You may have a failed keypad or control board.

We repair these for customers nationwide with our guaranteed $39.95 service.

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

Aug 07, 2008 | Whirlpool GH7155XHS Microwave Oven

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PANASONIC NN A 770SBBPQ


The first thing to try is a "hard reset". Unplug it from the power line for a few minutes, plug it back in, set the clock, then try again.

Let us know if the hard reset doesn't fix it.

Apr 22, 2008 | General Electric Microwave Oven

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Sharp R-630D


Hi, sorry fixya site is having some problems the experts are not recieving the emails with your response so we have to do it the long way and it takes ages going through all the posts we have helped on.

Ok then if the display is faint then the chances are its going to be the lcd display thats the problem as the display is working its just not lit up so replacing this will solve your problem but its not an easy job to do and is extremely dangerous microwaves are one of the riskiest things to work on as they give of radiation so breaking any seals can cause damage to anyone standing next to the microwavy.

The display is usually lit up showing the numbers but as you can see them faintly this tells us the circuit is okay and not shorting so its not anything drastic but replacing would be difficult.

If the inside is fine where the runners are then the chances are it would be worth getting repaired but if the paint has worn away or any rust is visible then the safest option is to replace it ok.
Let me know if you need further assistance ok

Apr 21, 2008 | Sharp R-630D Microwave Oven

1 Answer

The digital display is very dim and hard to read even in the dark. Is there a way to adjust the brightness?


I have a Sharp Carousel 1.5kW microwave oven with model number R-310F(W)C. The LCD dispaly on my unit recently became very dim. After check the small circuit board on the front panel, I found that the problem is caused by the LCD backlight driver which drives three surface mount LEDs. As the LED driver is inside a chip built on a small daughter card, it requires a replacement daughter card, or the entire circuit board for display and keyboard. A simple alternative solution is to cut the link between the three LEDs and their driver, then build a small circuit to drive the LEDs. I can provide the circuit diagram if interested.

Apr 13, 2008 | Microwave Ovens

1 Answer

LCD not working


In most cases, these are VFD type not LCD type. In any case, when a VFD fades over time, that is aging.

Unfortunately, GE does not make the VFD displays available as a separate part, so the only option is to replace the entire "smart board". And they can be expensive at times. But if you do it yourself, you save a lot on labor.

If you or someone you know decide to work on it, we have *critical* safety, disassembly, and troubleshooting info at our site, and our link is at our listing here on FixYa: http://tinyurl.com/yzjozk

You can usually find helpful exploded view diagrams and order parts by entering your full model number here: http://tinyurl.com/gv383

There should also be a very helpful "mini-manual" hidden inside the unit behind the control panel.

We're happy to help and we appreciate your thoughtful rating of our answer.

Mar 15, 2008 | GE Spacemaker JVM1640SJ Microwave Oven

2 Answers

LCD display is working but very dim and hard to see


This is a common failure of the control panel assemblies of these and similar microwaves. We repair these control panbel assemblies nationwide for only $32.50. If you or a friend decide to work on it, we have *critical* safety and disassembly info at our site, which is linked at our listing here on FixYa: http://tinyurl.com/yzjozk

Feb 18, 2007 | Sharp R-326FS 1100 Watts Microwave Oven

1 Answer

LCD Display not working, everything else is


If microwave works even if lcd is out then a 100% that the microprocessor is working. Try to check the lcd driver for any loose connections, the bus cable linking the board to the lcd disply for any breaks or try replacing the lcd itself.

Feb 18, 2007 | Kenmore 63252 Microwave Oven

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