How to make 5.1 amplifier using stk4191 and Tda2050 on B tech 5.1 prologic board powerful amplifier

In this video I make amplifier by using stk4191 and TDA 2030 I have shown complete wiring diagram for this with pictures

It has humming problem for the transformer
Buying link

5.1 amplifier board https://www.amazon.in/dp/B091Q5BKXM/ref=cm_sw_r_wa_apa_glt_fabc_MP67M7TQ4AA9HMZSW4GY?_encoding=UTF8&psc=1

B tech 5.1 Prologic board


https://www.amazon.in/dp/B08P9MGJ45/ref=cm_sw_r_apan_glc_fabc_DGXYWNYAVTV6VM3A8V1Z

I also uploaded a video on all items for makeing this amplifier-- https://youtu.be/_NWlYSpFPZg

THANK YOU
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