B&O Amplifier Issue

[xcnovanrunner]

Hi Everyone,

For a while now i've been without radio and Bluetooth phone calls. The problem I believe is that my B&O Amp shit the bed (below is a VCDS Scan of the Sound System). So i have a few questions and looking for suggestions on how to fix this.

I can do the following, replace the amp with a new or used Amp. The problem with this is this will still require a trip to the dealer to remove component protection. I am curious if I am able to replace the B&O amp with an aftermarket amp all together as this would probably be cheaper than the other route. Looking for suggestions on this.



Address 47: Sound System (J525) Labels:. 8T0-035-223-BOM.clb
Part No SW: 8T0 035 223 AK HW: 8T0 035 223 AK
Component: DSP Prem H08 0170
Revision: 00008001 Serial number: 34881005183303
VCID: 77BE2CA4C68591FEBB-8022

1 Fault Found:
00003 - Control Module
014 - Defective
Freeze Frame:
Fault Status: 01101110
Fault Priority: 5
Fault Frequency: 1
Reset counter: 255
Mileage: 188063 km
Time Indication: 0
Date: 2017.09.08
Time: 16:26:14

Freeze Frame:
Voltage: 14.10 V
Temperature: 32.0°C
Temperature: 38.0°C
Bin. Bits: 00000100
Bin. Bits: 00000000
Bin. Bits: 00000100


let me know,

[fmzip]

I was considering this if mine ever died. I have replaced all my speakers with Audison already so this would be the final step

https://w221audio.wordpress.com/2015...-audio-system/

[xcnovanrunner]

I should also add. I'm not a audio/music person. It's mostly background noise for me. I've been driving now for a few months with no radio at all.

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[miztahsparklez]

Replace the factory amp..

Going down the other route would require more amplifiers, a special fiber optic converter, etc.

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[Gunnark100]

Or send a unit for repair, at least you will save "130" - cp remove!

[xcnovanrunner]

Or send a unit for repair, at least you will save "130" - cp remove!

Any suggestions on where to send it?

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[xcnovanrunner]

Replace the factory amp..

Going down the other route would require more amplifiers, a special fiber optic converter, etc.

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I agree fixing or replacing with a factory amp sounds like it's the easiest route.

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[miztahsparklez]

I agree fixing or replacing with a factory amp sounds like it's the easiest route.

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I did the opposite...

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[xcnovanrunner]

Hi Everyone,

For a while now i've been without radio and Bluetooth phone calls. The problem I believe is that my B&O Amp shit the bed (below is a VCDS Scan of the Sound System). So i have a few questions and looking for suggestions on how to fix this.

I can do the following, replace the amp with a new or used Amp. The problem with this is this will still require a trip to the dealer to remove component protection. I am curious if I am able to replace the B&O amp with an aftermarket amp all together as this would probably be cheaper than the other route. Looking for suggestions on this.



Address 47: Sound System (J525) Labels:. 8T0-035-223-BOM.clb
Part No SW: 8T0 035 223 AK HW: 8T0 035 223 AK
Component: DSP Prem H08 0170
Revision: 00008001 Serial number: 34881005183303
VCID: 77BE2CA4C68591FEBB-8022

1 Fault Found:
00003 - Control Module
014 - Defective
Freeze Frame:
Fault Status: 01101110
Fault Priority: 5
Fault Frequency: 1
Reset counter: 255
Mileage: 188063 km
Time Indication: 0
Date: 2017.09.08
Time: 16:26:14

Freeze Frame:
Voltage: 14.10 V
Temperature: 32.0°C
Temperature: 38.0°C
Bin. Bits: 00000100
Bin. Bits: 00000000
Bin. Bits: 00000100


let me know,

So... I opened up the amp and found a smb capacitor just laying there on the bottom of the case. I'm gonna try to repair this and cross my fingers that it starts working again.

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[Senseless]

Looks like a 14 or 16 pin DIP IC from here. But there are no spaces empty on the board.

[xcnovanrunner]

Looks like a 14 or 16 pin DIP IC from here. But there are no spaces empty on the board.

Yeah. That was from the underside of the board. I haven't sodered it back on yet though.

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[Dobbler]

In for solution.

[Senseless]

Yeah. That was from the underside of the board. I haven't sodered it back on yet though.

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Weird. Could it have shorted & overheated so badly that it desoldered itself or was it broken off by impact? You may want to get one on Amazon and replace it if you can.

[S4'ed]

Did the part come off of the smaller, or larger board?
The smaller board is the DSP and processor board, the larger is the audio amplifier board. If the part came off the larger board, and you can't fix it, there is another option for you.
The "Component Protection" feature is resident on the DSP/Processor board. I bet you could buy a used Amp (same part # and revision) off of Ebay, open it up, and remove (unplug) the amp board from the processor board, and plug the good Amp board into your original Processor board, and then you would not have to hassle with removal of component protection at the dealership.

[xcnovanrunner]

Hey so I finally got around to getting the smb style capacitor sodered back to the baord. However the amp did not work still.

With that said I ended up picking up a used amp from the for sale sign in here and replaced my amp. Guess what, I now have audio in my car(first time in like 6 months). Now I need to take a trip to the dealer to get component protection removed (this might take me another 6 months lol).

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[S4'ed]

Why don't you try my suggestion in post #14 ?

[xcnovanrunner]

Why don't you try my suggestion in post #14 ?

So the capacitor came off of the smaller board. So I think my only option with the old amp is reading the EEPRom off of it and copying it over to the new one.

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[iowa_gts]

Yes you are not able to just use an aftermarket amp you have to use either the factory or both , but there is a guy you can send them too to fix but can find used ones online for about 100


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[xcnovanrunner]

Yeah my next step is fixing component protection.

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[streamline]

Is it possible to find another amplifier board for another amp with different part numbers, I am experiencing the same thing except couldnt find any broken circuits. I have access to fix component protection so that is not a limitation, its just finding a 8T0035223T at a reasonable price.