View Full Version : cobra 29ltd classic blows power wire fuse when plugged up

01-23-2016, 02:59 PM
Hello, Everybody. And thanks for the welcome doughboy. my radio blows fuse when plugging power wire up. replaced following with known good parts. voltage regulator , audio amp, reverse protection diode and in correct orientation. zener diode (d22). final, and driver. not very good at looking at schematic to follow power. would I need a component tester to test transisters, capacitors etc. any help would be appreciated. thanks. hope I can be of some help to someone later on.

01-23-2016, 08:44 PM
What size fuse are you using??

01-24-2016, 11:01 PM
found problem (d23) proection diode did not know there was 2.