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Panasonic SA-PT670 no power

Discussion in 'Troubleshooting and Repair' started by kyle_jordan182, Dec 3, 2018.

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  1. kyle_jordan182


    Dec 2, 2018
    i have a SA-PT670 that will not power up. When you hit the power button the relay will cycle and nothing will happen. Hit the power bottom again and same thing. I then have to recycle power to the unit and it will allow power to cycle the relay again. I have confirmed both fuses to be good as far as I know. And I think all the common diodes are good. I’m looking for a good power schematic/diagram for this unit. Any help would be very appreciated!

  2. Bluejets


    Oct 5, 2014
  3. 73's de Edd

    73's de Edd

    Aug 21, 2015
    Sir kyle_jordan182 . . . .

    I just see the 8A / 125V main, incoming AC power line fuse, where did you find the second fuse ?

    REFERENCING . . . .block diagram of internal power supplies


    73's de Edd
    . . . . . . . . . .

    The PERKS of being an adult . . . . .

    I can eat 26 cookies, no one can stop me.

    The CONS of being an adult . . . . .

    I ATE 26 cookies, no one stopped me:
    Now . . . . . I am feeling just a..w..w..w..w..w..w..w.. ful. . . . . .

    Last edited: Dec 3, 2018
    Richard9025 likes this.
  4. kyle_jordan182


    Dec 2, 2018
    From what I was searching I found F2 on my board next to RY5701. It is for sure not a type of fuse I’m use to.

    It appears that a PT770 is very similar to the PT670.

    Attached Files:

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