MEGA CD 2 Broken???

[amigaboy]

This morning i bought a Complete system including the mega drive and mega cd.
Everything works , except the mega cd :-(
I works , shows the screen , it knows when the door is open and closed , the lens on the laser goes up and down , but it does not turns the cd ....
Nor audio (Original , nor copies) , nor game cd-ies....
The red light (Access) blinks...

What is the issue?

P.S. Sorry for my bad english

[evildragon]

Can you manually rotate the spindle? If you press your ear to the CD door, can you hear a humming, as if it's trying?

If you hear no humming, take apart the Sega CD, and depending on your model, try the following:

Sega CD 2 Revision 1 (multiple wires coming from the CD assembly): Reseat all cables...


Sega CD 2 Revision 2 (Single ribbon coming from the CD assembly): Reseat the ribbon, AND "rotate".. Make sure the contact side of the ribbon DOES touch the contacts of the connector.. If you're not too sure of this, DON'T do it...

[amigaboy]

:

Sega CD 2 Revision 1 (multiple wires coming from the CD assembly): Reseat all cables...




Did that....

No luck....
The point is that the electro motor of a laser move (I move it up the back , and vhen i press the switch for the case door , the laser goes back ...
I have no idea what`s the problem...

What could i expected from a flea market at a cost of 5 €...

:confused:

[evildragon]

what about the spindle? the part the disc actually sits on? can you manually turn it? and if you spin it, will it spin itself for half a second (or even a whole second)? it should "glide" like it's "almost" on air..

[amigaboy]

what about the spindle? the part the disc actually sits on? can you manually turn it? and if you spin it, will it spin itself for half a second (or even a whole second)? it should "glide" like it's "almost" on air..

That part doesn`t spindle when it should :D

But when I try it to rotate , it does "glide"...

I thought that it could be stuck , but it moves when i try it...But it doesn`t when it should (In example , when i close the cd door...

[evildragon]

check the wiring to the motor..

either the wire is loose, or the motor is fried..

[amigaboy]

check the wiring to the motor..

either the wire is loose, or the motor is fried..

Tried both...

The motor works .... tried id with 9v dc , works...

Tried the cable...nothing

Must be the glich on the PCB somewhere :-(

[amigaboy]

Now i noticed that there is something similar to a "chip mod psx" on this board...
2 cm from the batery , there is a little PCB with two ICs and four wires that are soldered on the motherboard...
Is this serial or?

[evildragon]

the early model had a daughter board, i forget what it was for though..