essaie de t'approcher des valeurs donner plus avant dans le topic puis:
source PC enginefx:
"VR102 and VR104
VR102 has a small range of adjustment in which the CD will start to spin. If you turn it and the cd starts to spin, then you know you have found one end of the adjustment. Keep turning it until the CD stops again. Once you know approximately where those two points are, you can find a sweet spot in the middle.
VR104 seems to be similar to VR102 in that there is a certain range in which the CD will spin. Again try and find the sweet spot in the middle of the two points of spin/no spin.
By this point, hopefully you have the CD spinning, and maybe even attempting to read! So lets move on to the next pot/s.....
VR101 and VR103
VR101 is kind of a by ear pot. There seems to be a small range that works for proper cd playback. Typically it seems to be in the 0 to 45 degree range with 0 degrees being horizontal. You should hear some scratchy funny noises when VR101 isn't adjusted properly. Try and find a quiet spot for it. If you go too far it will get very noisy. Hopefully you can find a spot where the CD audio will start to play.
VR103 is, from what I can tell, an error correction adjustment. Hopefully you have got a CD spinning reliably at this point. You might hear a whiney faint scratchy noise at this point.... adjust VR103 clockwise until the noise goes away. If you go too far, the noise will come back only it will be a lower tone and not sound good.
Try and find the sweet spot where the laser operates quietly.
VR105
Lastly, VR105.... This is an adjustment for the spindle speed correction. I'm not 100% on the best way to describe adjusting this one. Basically if the spindle speed starts to run away (go REALLY fast) then you've gone too far. Hopefully by this point, your CD will play music. Try and play later tracks on the CD and if they struggle to play, try adjusting VR105 until you can play all the tracks reliably.
ça a l'air d’être un simple contact.
vous savez sur quoi je dois jouer pour le réglage?