On Tuesday, August 21, 2012 10:47:59 AM UTC-4, Ray Carlsen wrote:
On 8/20/2012 6:02 PM, Mike WB2MEP wrote: I have a Philips DVP-3140 DVD player (similar models DVP-3142 & -3144)that has trouble tracking discs. snip Mike, You've checked everything I would have except one. If any chips are running hot, a heat sink or small fan may help keep it going. Manufacturers push those components hard. I've seen computer mobos die for the same reason. Just a thought... Ray

There are two hot-running chips on that board: the 200+ pin Zoran processor and an Amtek AM5888S motor / coil driver. I'll give them a shot of freeze spray and see if anything changes. It probably won't, since the player behaves the same from a cold start to when it's warmed up. I may try to locate one of those motor driver ICs. There's no signal processing in there, but maybe one of the servo coil drivers has developed a non-linearity.

Mike