Panasonic TV: horizontal output transistor blows off frequently

The TV is an old model CRT tv and when tested it makes a hissing sound,initially I thought the flyback transformer is bad but when I checked the output transistor I detect its faulty.I replaced it but about 10s of powering the tv on this transistor got burnt again.I test the voltage at the output transistor collector terminal and it was over 220v instead of 130v.When such situation occurs it is adviceable to check the power supply circuit and from my troubleshooting I detect this 50v47uf capacitor to be defective






I changed it along with the output transistor and the tv works perfectly when tested.

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