Question about Aiwa F2000 20" TV

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My Aiwa Colour TV, model No. TV-A2019, has developed audio problems. 1. The audio output from the speaker is high even when volume is set at level one. Audio output is constant for volume level 1 to around 16. Muting is possible on setting the volume level to zero. Balance is also not working. Selecting only the right or the left speaker by using the balance control does not mute out the other speaker and there is audio output from both speakers. On setting the audio balance at the centre, the right speaker is much more louder that the left speaker. 3. Also the audio output sounds like mono though output comes from both the speakers. 4. Video is Ok.Remote control is also ok. I can understand basic circuitry but trouble shooting has become a problem for me under the instant case. Please help

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You just come aroung the sound decoder section of your tv. Decoder problems may cause the fult you pointed out. Since all the controls are electronically controlled, and all are through sound decoder, which converts sound to stereo the problem must be there. Since sound comes from two channels are ok, there is no problem around sound output. Check for some soldering loose contact, wire socket loose cotanct also.

Posted on Oct 15, 2010

  • marcusangami Jan 12, 2011

    Thanks for your reply.
    I checked for dry and loose soldering, loose contact, broken pcb tracks, loose wire and sockets, but all seem to be intact. I would be glad if you could kindly help me further.

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