There are a couple of things that can cause this problem. You will need to use the flow charts near the end of the following manual, and do the diagnostics to be certasin that you are repairing the right thing.
Ok what I have done is upload the service manual for your unit. It has all the diagnostic proceedures and is clearly illustrated. You can get it by clicking here.
To download this file:
On the first page scroll down to the bottom and select "FREE"
On the next page enter the letters in the box and select "download"
Save the file to your hard drive and open it with a .pdf reader. I recommend FoxIt reader. (foxit.com) Its smaller than adobe and no spyware.If there is something in the manual that you do not understand just post here, and I will walk you through the proceedure.
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