Dillen wrote:

Their technology and playing hours
is of no match to this one,

Oh, no worries - every now and then, I still feel the tobacco smell when I open the doors of the BC8000, about four years after I bought it. It was probably owned by some 19th century tobacco dealer so has seen quite a few CDs. Also, I believe the laser had been killed by the repair attempts...😂

Thanks everybody,

As said, I picked up the unit in this condition. It is not clear whether the CD worked before it was dropped to the floor. What is clear is that somebody, unprofessional, tried to repair it and gave up.

Ill do this.

1-As suggested make a better repair of the PCB in the damaged corner (However I've already secured and measured all connections in that area)

2- Check power supply,. Done, seem OK, 5V & 9V to the servo board id OK.

3- Change caps. Done so with some caps i had laying around, Didn't help. Ordered new ones.

4- If above don't help, change the laser. However, if bringing the unit into test-mode, you can actually see the red light from the laser, indicating it's working. I don't know if it can be working but maybe not strong enough. On the CDM 12 the is no adjustment for laser current or focus so there not much you can do apart from changing the whole unit.

One can also suspect that maybe the previous attempt to repair caused some faults to the servo board. The circuits are very sensitive to static electricity.

I'll keep you posted.

I had Techics with CDM12, spins, didnt play, reason was spindle motor, guess didnt spin fast enough.

Now I have one CDM12  from BC9300, same as yours, it dont spin at all, no voltage to motor, dont know why...

Orava wrote:

I had Techics with CDM12, spins, didnt play, reason was spindle motor, guess didnt spin fast enough.

Now I have one CDM12  from BC9300, same as yours, it dont spin at all, no voltage to motor, dont know why...

Mine spins approx 3 revolutions before it stops. Seems to get up into full speed quickly.

Bos00 wrote:

Mine spins approx 3 revolutions before it stops. Seems to get up into full speed quickly.

So, did mine. It's same symptom as CD50's motors in need of cleaning. But your motor might be ok as well, I couldn't tell by looking. Maybe it could be measured somehow.

Leslie wrote:

Ordered a few lasers CDM12 last week. Think I'm gonna place a thread how to replace them if anyone is interested!

@Leslie,

I'm very much interested.🙂

Where did you order them from? Please post photos when available.

Please wait, still waiting for them. As soon as I have them I will do the exchange and will post pictures!

My 2300 CD spins 2 or 3 seconds and then stopped, can't read any CD, could it be fixed with your laser module? 

The Beocenter 2300 came with different CD mechanisms over the years.

Early models came with CDM 4 which have a very reliable laser. In this case it's most likely a capacitor problem (well described in other threads)

Later models came with CDM12 industrial and later CDpro. In these cases the laser is most likely the problems. Lasers can be bought on e-bay but you have to find out which CD mechanism you have.

Hi,

the CDM-4 Unit moves the laser in an arc whereas the later units move linear.

The CDM-4 very often suffers from the 'C2103' problem. In the Beocenter 2300 / 2500 it's the C100 on the 'CD SERVO Motor System AND DISC DETECTOR' Board  97. The Capacitor is a 47µF connected between Pin 17 of TDA 8808T and Ground (Focus Servo).