I possde this remarkable machine from 24/04/97, this era, there was no better: Instant boot master tempo, sampling 8 sec, loop perfect for the most important.
We understand why it still offers a lot of fun today and remains one references.
On 10/04/2002, I did replace the two laser heads, the player gave his right hand when playing rrrrchhhhh of 3 / 4 dernires beaches specially with cd-r, co t: 320.
On 10/10/2005, I still have this problem, j'achte a laser head and replaces it cot: 100.
This is a laser head Charp rpendue on most CD players.

Disassemble the bte a t easy, by extracting the carriage against cell Relva head of the Chinese case, put it back too, playing patience and precision, especially not to force, or remove the drive pinion, they are set.
The rglage potart the blue speed acts on the cd, I read for a PS2 Repair Tool.
In short, now she walks without any nickel rglages and still has a bright future ahead of it. She's really built to last exept the laser heads wear out, they can be read too many cd-r?

I had to change it, I would hang dn3500 2, sometimes I board hsit with Pioneer ...
I would stay and m'carte DENON pioneer of all that is "plastoc".