I had a guy bring in an X Force 6 pill that had quit and was blowing fuses. All but one of the four rectifiers had blown so I replaced then all. Amp came on fine, no fuse blowing but things are heating up in the signal input section, mainly the 10 ohm 20 watt resistors of which there are three. The hottest parts are the Shottsky diodes. There is an imbalance of power that could be one of transistors. (Haven't had time to get to it yes to test), but my main question is, What are Shottsky diodes doing running to ground in a bias circuit anyway. Am I missing something here? I have a lot of electronics training (I don't claim to know everything) but I'm stumped here. There are three capacitors in parallel with the diodes. With the diodes passing current at .55 volts would that not sink all the input signal to ground?
As far as the amount of input signal, the radio dead keys 2 watts and modulates to 22 watts peak. No driver or anything.
Maybe I was sick the day this was discussed in class.
Thanks and all help appreciated.
Kruser
As far as the amount of input signal, the radio dead keys 2 watts and modulates to 22 watts peak. No driver or anything.
Maybe I was sick the day this was discussed in class.
Thanks and all help appreciated.
Kruser