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Pioneer sa1290 input selection prob.

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Discussion in 'Troubleshooting and Repair' started by More-cowbell, Oct 19, 2018.

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  1. Oct 19, 2018 #1
    More-cowbell

    More-cowbell

    1
    0
    Oct 19, 2018
    The receiver won't change inputs but the light changes when selected. It only works on the very bottom adapter jacks. Also, the tuner comes on but won't pull in a signal and yes I have an antenna hooked up. I can hear the tuner ever so slightly when I have the vol maxed out.
     
  2. Oct 19, 2018 #2
    dave9

    dave9

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    Mar 5, 2017
    Open and inspect it. Look for burn marks, cracked components, vented capacitors. A little browning of construction adhesive holding some parts down isn't necessarily a problem.

    After that I would probe the low voltage supply subcircuit to see if it's working properly.

    Might not hurt if you can dig up a schematic.
     
  3. Oct 20, 2018 #3
    73's de Edd

    73's de Edd

    3,050
    1,289
    Aug 21, 2015
    Sir More-cowbell . . . . .

    Pending your reply and with its further info . . .

    Is this being a NEW product of yours . . . or one that has worked for years, and just now doesn't ?

    Confirm that normally installed jumpers are being present in the rear of the units R and L input jacks for the ADAPTOR in and out connections .

    Also what inputs are having audio sources plugged into them ?
    Possibilities of Tape-CD-Video- Phono ?

    73's de Edd
    .....
     
    Last edited: Oct 20, 2018
    Richard9025 likes this.
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