Question about Sony FD Trinitron WEGA KV-21CL10 21" TV

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TV SONY KV-21FV10C7

Hello that tál, I will be you very grateful if you could help me in the following thing, I have a TV Sony Model color KV-21FV10C/7 and it doesn´t present audio, but their images (video) it is excellent, it doesn´t present problems, then, I carried out the following test: To the TV I installed him a team videograbadora and employ their antenna entrance and exit of this (video) I connected it to the entrance of TV, that is to say using IN: (To / V) of the TV and syntonized the TV in VIDEO and with all this I obtained the perfect audio in the TV (adjustable from the TV), then I thought that the tuner of the TV was bad or damaged, then I replaced it for one new and the TV continued with the same flaw (without audio), undoubtedly when ascending or to lower the control of volume this it leaves in the inferior bar of the TV. Now I have thought that their EEPROM desconfigurada (desprogram) that you think on this should be?, excusing that it bothers you with my problem, you am from already very grateful, cordially, Pablo Ugarte C. from Antofagasta, Chile E-mail: pauco17@hotmail.com

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The tuner has three components in it. rf video, audio and carrier, so your sound is not seen at the separation of signals.
1 inject an rf of 5.5 Mhz on the rf in put, if the audio path is good a tone will sound at the speaker. if you dont have a sound then you should tune a coil drum on the audio separator stage.
the 5.5 Mhz is off frequency.
try that.
thanks for asking fixya.

Posted on Feb 23, 2010

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