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..
Just got hold of my first BS9000 MK2 I would like to fix for my living room :)
Got it cheap, as the seller told me that it had issues with the cd, and since it's the MK2, I figured it needed a CDM21.4 laser :)
But no.... that is not the problem. When I went to get it, it was "kind of dead", everything seemed very slow in response. The lid did not open, sledge wouldn't move, but light came on. Radio would not turn on, but then after some time it did, and the system powered down..
Oh well, I had driven 300km to get it, and got it even cheaper since now there was something else wrong.
I red in another thread about bad solderings in the power supply, so figured that might be the case.
Took it home, had in my nice cool car at 19 degrees on the way home (today it was 31 degrees celsius in DK), and the living room we tested in, was even hotter I think :)
When I got home, I powered it up. It did some funny stuff, but the suddenly the sledge said a click sound, and moved "into place". Then the system powered up. I adjusted the position settings, and put cd's in, and it played fine.
So laser is fine.
But when it moves fast, it has trouble stopping at the right places, with the lid open, all is good.
I ran TM27 to see errors, and there were some power/cd/sledge errors.
Cleared them all so I kno what I have to deal with.
Ran TM71 which calibrates a lot of stuff, but when the sledge moves fast, it stops where it shouldn't and throws this error..
30: CC sledge pos count error.
A counter error has been registered on the signal from the sledge tacho. It is registered at 35IC2 pin 1, 44, 5 and 9
Could this be as simple as dust on the tacho disc, red somewhere that it could be a problem ? Have not had it open yet, would just like to hear if any of you have experience with this error ?
Thanx
/Weebyx
Just to keep you updated.
I have solved the issue with the sledge error, and the failure of running TM71.
Opened he unit up, and as suspected, the optocoupler wheel that detects sledge position, was completely filled with dust, and the wheel it self was all grey and the grooves had dust in them..
Removed all the dust that could be blown away, and then cleaned the wheel very carefully with a fibre cloth. The wheel went back to its shiny self, and after reassembling the unit and clearing all errors, testmode 71 and 73 ran without any issues.
So for the measly sum of nothing, the unit is back to full mode again :)