Question about Chevrolet Cavalier
The root cause may be a batch of dirty gas, aggravated by a fuel filter that was long overdue for change. I would start by replacing the fuel filter. then replace the injectors that feed the fuel-drenched cylinders. Those injectors have contamination that causes the fuel to bleed by. The affected cylinders stop the engine from turning to start because of "hydraulic Lock". The piston can compress air but cannot compress liquid fuel. After you get this fixed and running again, you should change the oil as there is probably a quart or so of gas in it by now that has ran down past the rings. the gas in the oil does not make for a good lubricant, and also runs the risk of exploding in the crankcase. An effect similar to the exploding funny car on the dragstrip just not as violent.
First, my disclaimer:
I have a much older projector, but the way they are constructed hasn't changed a lot to my knowledge.
An excess of dust can shorten the life of electronics, it's a given. But the majority of these sets are allowed to collect dust for many years of operation before any problem occurs.
I sense that you may instead be asking about cleaning the lenses and mirror. Actually, the mirror, since it faces somewhat at a downward angle in these sets tends to stay clean. the lenses however, face upwards, and do get quite dusty, causing a blurry picture, with ghostly images on the screen at their worst.
To clean the lenses on most RCA sets I've seen, the screen must be removed. Allow the set to cool and voltages to dissipate for 30 minutes before beginning this process. There should be a removable panel beneath the screen, usually retained by screws on the backside at each end. REmoving the panel will expose the screws that keep the screen in place at the bottom. With the screen removed, the lenses (there are three) will be quite obvious. I clean mine with typical glass cleaner and SOFT paper towels. PAY ATTENTION not to allow any liquid to drip into the projector below or you may disable the projector unit possibly causing damage that must be repaired. If you are successful at the lens cleaning you will have restored the picture quality to like new.
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Posted on Dec 19, 2008
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