Measurement Techniques Final Amplifier are often broken

I will discuss here is the OCL amplifier .
often in doing repairs, we are too hasty.
in replacing spare parts, we must be careful.
it will lead to cost over. because the spare parts that we replace the likelihood can be burn again.
preferably before we put the transistors final amplifier , we measure the working voltage.
we measured between the negative pole (-) with each end of B(basis) of the transistor amplifier should be half of the voltage positf (+) with a negative voltage (-) source.
if it deviates far, we measure the driver transistor.
there may be a leak.
measure with the multi at 10k ohm position.

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