Ok so I'm not really familiar with amplifier circuits .... I've got a amp I'm trying to repair . When I opened it I found two blown fuses on one channel . And a 1 watt resistor burnt through . I replaced fusses and resistor only to have a red light come on . I hooked up a speaker and the circuit fried the voice coil . I then took closer inspection and found that both semiconductors are shorted so I have removed them and ordered replacements . They are 2SA1302 and 2SC3281 . What I'm wondering is if during the failure of these would a anything else have failed with them ? I don't have a scope never really used one before so how would I go about checking the circuit before I install new chips . Any advice is most welcome