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2970 needs your knowledge

sammy

Member
Dec 9, 2005
4
0
11
Hi Guys,
A friend of mine {real not me} a couple of years ago hooked his Miarge 2970 up backwards. Bad news!!! I got the radio going agian, Replace the 2sb754,2sa473,filter cap,repaired a blown trace. The radio will put out if I unplug the linear relay{8-10watts with mod.} but if I plug it back in it just barely shakes the needle. I checked the linear for burned up parts and there are none. Also checked the diodes on the bottom. The relay seems to be kickin in. I though it could be the 2sd1406 but didn't have one but i did replace i with a TIP3055 to see if the amp would key up but to no avail. My friend is on some hard times right now {work wise} and can't afford to have a real tech fix it. I told him i'd give it a try. If any one could give me some advice I'd sure be gratefull. I'd like to give him his radio back for Christmas to pick him up a bit.
Thanks in advance,
sammy
 


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  • @ heartbreaker3473:
    Hello gentlemen and Ladies. I have the dreaded RCI-2990 receive issue where my radio gets distorted when people get close to my location. I found the C90 Capacitor, but I can not for the life of me find the C89 capacitor. Can or does anyone have a picture of the exact location of C89 ? Thank you in advance, Wes
  • @ AudioShockwav:
    Wes, it's better if you start a thread on the main forum, more people are going to see your question.
  • @ heartbreaker3473:
    Okay, sorry, will put in a forum
  • @ heartbreaker3473:
    I put it in the general disscution help area and started a new thread. Thank you for letting me know.