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you need to backflush your system, drain the system, drain the water out of the radiator plug is at the bottom of the radiator in engine bay, remove the radiator cap. when the water is out remove the water lines to the internal heater. you will find 2 pipes going into the fire wall to the cab, with and hose pipe and the heater controls on full heat flush the lines change pipes every now and then. when the water is clear coming out on both line, blow down one pipe this can some times move any hard or heavy parts left in the heater then flush out again on the line you blown down. then do the other pipe the same. now flush the engine, take the bottom hose and top hose of the radiator and flush the same way as befor you dont need to blow on this one just a good flush, now block the 2 hose's on the heater line dont connect the heater lines as you can force the muck in the engine back into the heater. then put hose in top pipe for the rad and the water should come out the bottom hose that would go to the bottom part on the radiator.when it runs clean you can now reconnect the pipes. when this is done you will need antifreeze or antifreeze summer coolant, now this can come pre done or no diluted, this is up to you or where you get it from, you need a 50/50% 50 water 50 antifreeze it is best to make it 55/45 for a full flushed engine as you will lose abit on getting the air out of the system. drained engine is 50/50. now put the antifreeze in the engine then the water 4 one liter bottles mixed other 1 full liter. then leave for 5 min. then add the water. you dont need to leave it for 5min but i do helps with bleeding air as the liquid is thicker than water at this point. then add the water slowly till it is at the top of the cap not the max past this. while filling squeeze a hose pipe. now you need to start the engine (no water cap on, heater on full with fan on 1 or off with just heat on) run engine and keep it at the level before starting engine after 3 min of engine running squeeze any and all pipe you can safely get to , don't put hands near to moving parts or fan as this can come on at any time. every now and then rev the engine 2000- 3000 rev is fine this will help get the air out. also check on the heat in the cab and the temp is rising good. when the engine get to temp and the fan kicks in to cool down the radiator turn off the engine and leave to cool down dont (DON'T) add any water at this point. when engine is cool top up to the max lin and put the cap on after your first run check pipes are fine and not leaking if any leaks it could be the pipe you put back on is not sitting right when engine is cool readjust it. heater should be working fine now.
If the projector is not getting a source it might go on standby maybe check where you plug it in.
Projectors require quite a bit of power and should be on a single loop/outlet not hooked up to a powerbar with more things on it.
the projector lamps have a life time of a few thousand hours .. then they may start doing what you describe ... lamps are available on the internet for about 1/4 of the cost from a repair service .. if you are handy at doing such things .. its usually not hard to change the lamp .. you just have to remember not to get finger prints on the new lamp and dont touch a hot one .. there is often a cubby or door or panel at the back of the set where the lamp can be found . instructions for changing the lamp are often given by the manufacturer on their web site .... if we knew the make and model for your TV then we could direct you to the proper instruction .. or your can do a web search for your brand/model .. make sure the set is unplugged before doing anything with the lamp ..
Move the second button from the left to set, enter the time in 24 hour format via the HH and MM buttons, then move the button to start. The far left switch, on/auto.off is for the chime. Set to on for 24 hour alarms, set to auto for no chime from 11pm til 6am, set to off, to turn it off.
I had the same problem!
The problem is dust on the color wheel. At side of the color wheel is a wire connector attached wit one small screw, with a cottom tip clean the small lens and surface, that's all.
Put the connector and screw and it will OK!!