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old trs80 computer lots of smoke

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    #21
    yes but if monitor no display anything i no want spend long time try fix because i dont know how and maybe it not even fixable or worth fixing...we will see...this is a future project
    Last edited by shelby5041; 07-18-2024, 05:57 PM.

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      #22
      can someone confirm...on my version trs80 there are 2@ .1uf caps

      there is no .01uf cap as someone mentioned

      im going to be ordering the 2 caps soon

      i only see 2 RIFA caps...1 on each power board.

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        #23

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          #24
          hi..apparently my trs80 does not have a rifa cap at c2...see pic...my trs80 has 2 power supply boards that appear identical so i will order 2@c21 caps...

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            #25

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              #26
              i installed new caps ....powers on ok but monitor still blank...i can see very faint thin horizontal lines that are close spaced at top and get farther spaced tiwards bottom of screen.the lines are white colored.....the monitor is pwring on for sure....just blank....redwire ill try your procedure this week and see if i can get some kind of prompt on the screen.
              Last edited by shelby5041; 09-08-2024, 08:10 PM.

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                #27
                i did the break key and orange button and nothing shows on screen...just a few thin white horizontal lines...monitor could be bad or the machine is getting pwr but not actually booting up..bad ram..bad cpu etc...i may try selling as is or part it out .
                Last edited by shelby5041; 09-13-2024, 09:07 AM.

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