The Front (door) AMP #129. On the bench, this one was making breaking noise in the background while managing to output the audio signal. As always, leaking the acid from the caps and dissolved some of the circuit tracks ...
Another owner sent in his three Bose AMPs due to the cracking noise and the faint sound. First, bench tested all three AMPs to check the state of them. One of the Front (Door) AMP was just making cracking/popping noise with no music ...
The AMP on the right side door was later spec than the left one so someone already replaced the entire speaker box or just the AMP in the past. There was trace of someone worked in the area in the past so not surprised with the presence of uprated AMP. Very likely to be done through Honda warranty as some of the original AMP ...
Replaced the capacitors, quick check and then applied conformal coating on both boards. Normally, I test the refurbished AMP with MP3 player for more than 2Hrs but today, I must put everything back in place as I already booked this NSX in for the alignment service tomorrow. So, tested them ...
Before start removing the AMPs, carried out quick check and confirmed that all of the AMPs/speakers were still operating. Started to remove the speaker boxes at the left door and at the passenger foot well area. At the left door, one of the triangle interior trim at the top forward section was already damaged and actually glued into the fixing ...