Question Philips HTS5540

Sep 11, 2020

I am trying to get this Home Theather System working. Upon checking , I realised that both the switching transistor (SMK1350) have blown. I have replaced them. Apart from this, there are 2 smd diodes connected between the Gate and Source of these transistors which are also blown. One is marked T4 on top of it and shown on the schematic as a 1N4148S . The other is a zener diode and has a marking .H5 on top of it. On the schematic , it is shown as 15VS. I need some info on this diode. What is the part number and does 15VS means that the zener voltage is 15V. I cannot upload the schematic as it is large. Can someone please assist.


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