ARCHIVED FORUM -- March 2012 to February 2022READ ONLY FORUM
This is the second Archived Forum which was active between 1st March 2012 and 23rd February 2022
Hi
Longtime I did not work on an bang and olufsen product.
Hi am more on smartphone repair because of easy access to diagrams and parts.
Because of the covid-19 confinement I said why not trying to fix the beosound 4, I have 2 and both with the exact same problem. So that is supposed to be a conception error and should be under warranty but....
So it isTurning on led on stand by, never blinks.
The window moves and I was able to make the cd clamp open and close. Do not know how as I have no display at all.
After reading on the forum I saw someone that had B&O changed a card and 700.00 dollars after was back and running.
That is why I normally do not buy these products as we do not have the complete schematics of these products. I do not buy products from companies that have such behavior, making all they can do the costs are so expensive that people prefer buying a new one.
Anyway I have only 5V_SB
6.00 volts on pin 1 of @uPH8 no 5V_CD
Cannot do any further test as you must be in CD mode to get the other voltages.
Any help ?
Which board is the culprit ? Is it P101 the main supply ?
Does it exist more complete diagrams than the service manual ?
That is only a module exchange manual.
Regards