No power to the speakers after changing AMP board

Dear all,

After having some trouble with my Sony BDV-E6100 (the push power error) I found this question on ifixit and followed the steps: Push Power Protect repair

Unfortunately when I changed my AMP board after having checked the voltages etc. there is still no sound coming from my speakers. Do you have any suggestions on what I can try next?

With kind regards,

Floris-Jan

Update! After cleaning the power connection my front, center, subwoofer and center speakers work again! Unfortunately the surround speakers are not working. Does anyone have a suggestion about how to fix these?

Thank you in advance!

With kind regards,

Floris-Jan

After consulting a sony repair facility they suggested to check the pins of the flatcable which crosses the fan, because they might be folded. This was the case, so I folded them back and now its working properly :)