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Re: My Sony KV-9PT50 has no sound.
Is there a audio when you using the av input using a dvd player or a camera? if there no sound in any input you selected....check the speaker and if the speaker is ok...... check the audio amplifier...in you do not have any knowledge in electronic do not try this cause you might electric shock better go to the service center...
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cpu mpd720208 send comand -mute- all the time
pin 42 AMUT. if you cut this wire, after receiver
is on, saund appiar. this is not right, but this work.
if you cut this wire in off condition, receiver dont
on. i dont find the rison of this, but i think some
input voltage for CPU is on the edge. or on-delay
cicuits dont work properly.