Question about Sharp R-202EW Microwave Oven

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SHARP R-316F The lighted Display section on my R-316F SHARP microwave went dark today. I can still see the numbers faintly there in the black, but it's almost invisible. The interior light and all other functions seem to be working fine. Purchased 6/28/04. Any ideas?

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  • 2carrs Nov 23, 2008

    I have exactly the same problem. The display went dim and then completely out. Did the repair idea work? Was it difficult to do?



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I had the same problem with my Sharp R-330F.  Everything worked fine except the display was very dim.  I figured out that the backlight LEDs weren't receiving any power from the microprocessor board.  (Three surface-mount LEDs on the circuit board behind the display).  I couldn't trace the problem past the microprocessor board, so in the end I manually connected the LEDs to the +15V supply on the board via a 4k7 resistor - cut the track to the microprocessor board, soldered a 4k7 resistor to it, and soldered the other end to the ground of the bridge rectifier on the board.  4k7 was a guess but the brightness is about right.
The display works fine now, but this repair isn't for the inexperienced.  Actually this is the same repair suggested by the "guest" above, but when I first read that solution I thought it was a joke.  It isn't, and it works!!

Posted on Dec 16, 2008


Easy to fix you need to cut the tracks to the led lights then solder 2 wires to the leds next use a 1k resistor on one of the wires then conect it straight to the power surply just after the bridge rectifier noteing+ and -

Posted on Mar 06, 2008

  • Everett Mounce May 02, 2013




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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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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

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