Question about Hitachi 50GX30B 50". Rear Projection Television
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Posted on Jan 02, 2017
You will probably find that the EEPROM that stores the convergeance information has lost its settings and it is purely an electronic problem.
There should be a service swith, behind the front panel of the TV, on the main board. Set the switch to the service position and spend many a happy hour setting it up. The green does not move so blank the blue gun and set up red and green together then blank off the red gun and set up the green and blue together. That will hopefully be all that you have to do.
If that does not work, the EEPROM will require changing and that is usually a 2084 type 16 bit 8 pib chip.
Hope you are succesfull with your repair and watch out for the EHT leads feeding the tubes. They are rated at around 32KVolts!!!
Posted on Oct 20, 2010
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