Today at Atelier Kaz - ex-Honda R&D, F1, Indy/CART engineer

The owner mentioned that after the installation of the aftermarket security system,
he lost the audio sound at the driver side speaker and
only heard white noise or cracking sound.


The AMP on this side was already replaced twice in the past.

First time for the famous leaky capacitor issue
together with other two AMPs at the passenger door and foot well.

Then, the second time when it was not possible to re-create ...

Tags: amp, bose, door lock, power door lock, security

Categories

Electronics , Audio

The left side door and foot well speaker boxes are now back in place and
started working on the right side door.

As I don’t have enough time to finish everything in time before leaving for
the alignment service, decided to take the AMP out of the speaker box but
put almost everything back on the car before visiting the alignment platform.


...

Tags: amp, bose

Categories

Audio

Time to refurbish the AMP.
Don’t have much time this week so it’s going to be brief update.

Normally, I prefer taking all three AMPs out of the car in one go
but this time, I must be ready for the alignment session so decided
to work on the left side door and the foot well speakers first.
Then, re-install them, and if time allows, work on the right side
door AMP before visiting the alignment place.



...

Tags: amp, bose

Categories

Audio

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 ...

Tags: amp, bose

Categories

Audio

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 ...

Tags: amp, bose

Categories

Audio