STK4152II Circuit
![Circuit Board](circuit/stk4152ii-stereo-amplifier-circuit.jpg)
![return](nav/navigation.gif)
A genuine STK4152II has a circuit board inside that looks like the one shown in the pictures on this page. This type of circuit is based on IMST fabrication techniques and difficult to copy. As you can see in the photographs, the power transistor on the right-most side has a burnt wire resulting in the IC not operating correctly. Just as an experiment, I was able to solder the wire back together and make the IC operational again.
![Hybrid IC](circuit/stk4152ii-genuine-hybrid-ic.jpg)
![View](circuit/stk4152ii.jpg)
![Burnt Wire](circuit/stk4152ii-burnt-wire.jpg)
![Power Transistor Die](circuit/stk4152ii-power-transistors.jpg)
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STK4152II Stereo Amplifier ICCircuit