The model number is H324DT. I really do appreciate your help. With the economy here in the US "tanking" and education budgets being cutback it is always reassuring to have someone like you who is willing to share his knowledge and expertise with those of us who are "much less knowledgeable" about such things. Thanks again!
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there is a focus control in the front of the set behind the front grill there is a door in the middle attached by screws take this off and it should be right behind it. There are six controls on a little box one row says focus and the other says screen don't adjust the screen controls. In some cases these are in the back of the set.
What is the model number? If its a DLP it could be thermal due to the air filter. If its a CRT projection it could be a bad capacitor that loses tolerance as it warms up. Need the model number to actually be more accurate.
Was wondering if you ever found anything out how to reset the IC Screen Numbers or what the factory numbers all are on the Zenith Rear Projection TV Model # R57W46? I have the same problem ! My 2 year old son, not knowing how he did it cuze only a technecian is suppose to get into this screen, but he did change numbers in the too. I called zenith themselves and no luck ! My screen is bowed , etc..
Any Help ?