Planet audio ac4000.1D

Mjimenez

Member
2017-12-20 3:08 am
Hi friends I ask for help to repair this amplifier of the Planet Audio brand model ac4000.1d initially all the output mosfets were in short, I removed them and checked the vertical plate and found 2 damaged transistors mps056 (Q6k and Q7k) and 1 resistor of 100ohms now my doubt is that signals or voltages I must have in the connections of the output mosfets to be able to install them and I mention that the output inductor likewise checks it and I did not find anyting, the voltages faith + -15v if I have them the VPP is also present Greetings to the whole community
 

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