I just recently got this TV that was given to me, the only problem with it is the blue picture does not show. The Green and Red show fine and kinda overlap each other however the blue has gone out. Is this a lamp that I can replace or do i have to replace the entire CRT for it? Are there any diagnostics that I can do to check if the Blue is working or not?
What most people do is a simple one a white pice of card and simply phocus your blue,green and red on the board...till they show if blue fails to illuminate then a shop maybe the answer as you dont want to start messin around if you dont what you are doing,,,
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Component RCA Connectors are RED, BLUE, GREEN for picture. Sound is RED and WHITE. The red and white for sound work the same with the YELLOW that does picture. If the RED, BLUE, GREEN are in the wrong order you will get a blue or green picture. For the sound, try the other red and white connectors nearby. Make shore the right red connectors are connected correctly for sound or picture. Otherwise there could be a cable fault or a TV fault. If you get the picture right but not the sound, connect the sound into a stereo.
Pl. check audio/video cord for proper connection on both the ends,as there is possibility of connection problem,in DVD separate output is given for RED BLUE and GREEN.
Soon as though you have your wiring mixed up. Those leads, colors you describe are for Compnent Video signal....Red Green Blue. Now the Others are for Audio Visual signal , Yellow, Red, White... They are NOT compatable. IE: You cannot mix them. Check in your manual as to what types of lead is needed how to wire it up..
According to the manual:
1) go to the "TV Main Menu"
2) Select "Screen"
3) Select Adjust Projection TV (obviously only if a projection TV).
This then allows you to adjust the TV's 3-colors. Selecting GREEN CENTERING brings up a control panel that lets you center the green projection tube on the screen. Selecting RED CONVERGENCE or BLUE CONVERGENCE lets you align the Red & Blue projector tubes. Centre the green projector tube 1st. Then adjust the red & blue until the test pattern on the TV screen appers white.
Good Luck!
Normal color picture is composed with 3 colors R-G-B (Red-Green-Blue). Picture turns Red means: Missing Green and Blue colors (many reasons: bad contacts, projector tubes dead, and other...). Try to give some "tabs" to diagnose ... I don't know what is the type of your Projection TV, how long you owned it, to have more idea.
My Dad had a Hitachi rear projection with same problem blue and red were fine green was out of allignment and could not fix. Problem was the acual projector inside TV the cost for repair was more than TV was worth went out bought plasma.
I guess it's missing blue. Even if you see the blue crt working it's not enough and focalised. replace the coolant in it and also check if you have some coolant leak on the crt pcb.
Your missing the red drive on the set. Its most likly the picture tube. Its a possibility that the red drive circuit could be not working so the best thing to do is take off the gree picture tube socket and put the green board on the red tube. Of course do all this when the set is unplugged. if you have no tv experience. its not a good idea to be messing around inside of these sets.
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