rci 2990 base problems

big dog · Post by **big dog** » Tuesday 23rd Sep 2008, 5:36

i have a rci 2990 and no tx power when i took apart red power wire for the amp was broke so i fixed it , now there is no power if i unplug the brown 2 plug i get power from 1 watt swinging 7. i pulled the driver and final and checked them on a trans tester and there good.please help this thing is driving me nuts!!!

ramblingman · Post by **ramblingman** » Tuesday 23rd Sep 2008, 13:01

One or both of the 2sc2290s on the amp board are probably shorted.

Unit 67 · Post by **Unit 67** » Friday 26th Sep 2008, 10:06

Im not trust any transistor tester when i work with the 2SC2312 or the 2SC1969 transistors.In sometimes the transistors read "Ok" when is really bad and i have three different transistors testers.

Psssss;And you have to test your amp final transistors,because with 1 watt of output you should have about 30 to 50 watts of output in your base.

When you hit the PTT the relay of the amp works ok?