Relevance. Always testing suspected components off the board is good practice else it is very time consuming process specially in laptops. Sony Support DVD Home Theater Systems. Bad displays and poorly mounted power buttons that could be pushed back into the chassis were some others. Your email address will not be published. 5 Answers. I took the machine with me to my workshop, opened it and did visual scanning and nothing seemed suspect. What you need to do first is to check and make sure the output voltages from the power supply are good and no shorted audio speaker wires. If the issue is still unresolved, service may be required. By Jestine Yong on April 6, 2020 Sony home theater receiver model HBD-DZ810 came in with “push power protects” error now repaired. Only the right side speakers come on. Plug the power cord back into the electrical outlet. eric k. Lv 4. This customer was referred to me by another customer whom I had repaired his Sony Bravia television which had backlight problem. To reset the internal surge protection circuit unplug the AC power cord from the wall for at least 30 minutes. I explained this to the customer and requested him if he can be using the machine without one amplifier and he agreed. Unplug the unit from AC power for 30 minutes, and disconnect all of the speakers and other associated equipment.