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

After returning the NSX to the other owner, wanted to start working on the A/C system on my NSX but
I had 2 x audio head unit to be serviced so had to finish them first.


1st one is the spare unit for one owner.
I repaired another unit for him in the past and he got another one.

When he brought the unit to my place, he told me that the audio quality was only ...

Tags: alpine, audio head unit

Categories

Audio

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Tags: alpine, alpine head unit, audio head unit, head unit

Categories

Audio

Another owner sent in the Alpine audio head unit and the Bose speaker AMP.

The owner mentioned that the head unit sometimes worked and sometimes didn’t.
White noise when turning the volume knob (although this is more of contact cleaner required rather than circuit board issue).


So, tested the audio head unit on the bench first and indeed, there was almost no signal output from the unit.
If I turn ...

Tags: alpine, alpine head unit, head unit

Categories

Audio

While the leakage from the capacitors were minimum, there was suspicious leakage marking near the CD changer port. Couldn’t find where they came from….
Removed them and coated for now.



...

Tags: alpine, audio head unit

Categories

Audio

Another owner sent in his audio head unit for refurbishment.

Initially, he wanted to send in the A/C CCU board for servicing as it could only operate when the fan speed control was set at max (typical CCU failure mode) and after reading my blog about the capacitor failures on other parts, decided to have his head unit serviced at the same time as he experienced no power, no display issue long time ago but it fixed ...

Tags: alpine, audio head unit

Categories

Audio