Inherited a 55 inch rear projection hitachi tv. have HD box hooked up to 1080i, white is too white... seems like the picture is foggy even though it is hooked up to the box correctly. Picture quality is not what I expected aspect set to 16:9
Hello,
This indicates an Automatic Gain Control (AGC) problem often caused by a dried up capacitor. You will probably need a schematic to go much further. This could be a problem in the tuner, IF, or video amplifiers.
The following assumes you are sure the signal source is strong - try a VCR or other local one (channel 3/4, not the RCA jacks).
(From: Glenn Watkins ([email protected]).) Substitute a variable voltage source for the tuner's AGC voltage. Most of the time the range of AGC is from 1 to 7 volts. If you can get a decent snow free picture with an external AGC source, then the tuner is probably OK.
This is will require you to open the back cover of the television alongside an ohmmeter to read components on the printed circuit board of the television..
Take care
224 views
Usually answered in minutes!
×