Re: Pioneer BDR-207DBK Repair
Posted: Wed Sep 17, 2025 3:11 pm
Okay, I need to clean it like you describe. I'll do it as soon as I can. But I have a problem with the motor that moves the laser spinner. I've seen that in other sara drives, but for DVD or CD players, when the drive is turned on, that spinner makes a more complete movement, and regardless of the position it's in or where you manually position it, when you turn the drive on, the laser makes a more complete movement until it's close to the central motor that spins the discs. For example, if I manually position the laser spinner at the end, when I turn on the drive (this means without a disc inserted), the laser moves until it's as close as possible to the central spinner motor. But in my drive, it doesn't make that movement; it's just a very small movement, and in the end, it doesn't even move to the central motor. I even replaced that motor and cleaned some of the dirt and lint that was on the gears, but it's still the same. I also tried slightly reducing the spring that applies pressure because it felt a bit tight and wanted to see if a softer one would make a difference, but it wasn't much. Anyway, I have doubts about the movement of the motor that drives the laser. It should be more complete and even touch the central motor, as I've seen in other CD drives, OPC DVD players, or desktop DVD players that I've seen turn on. I'm going to try putting in the motor I had, but it's the same with the other one I put in. As for the potentiometers, I don't know which one corresponds to each of the three potentiometers it has, and roughly how many ohms they should be. Thanks.Billycar11 wrote: Tue Sep 16, 2025 8:27 pmDid you clean the lasers here how?johnnyesp wrote: Tue Sep 16, 2025 5:35 pmHello, Today I tested the unit after trying different things and I thought about trying a Blue Ray disc since I had tried a DVD disc and a CD disc but it occurred to me to try a Blue Ray disc and it did spin the disc although it seems to have a hard time reading it, I have several questions, I wanted to clarify that it is rather the blue laser that I see that does turn on, I had not seen the red laser turn on but when I tested the Blue Ray disc the red laser also turned on and then the blue one too and the disc spun trying to read the data from the disc, because I only had the unit connected to SATA power not to the PC with the SATA data cable. I am going to test it connected with the SATA data to see if it recognizes the contents of the disc. But among the questions I have are: how to know what the potentiometers are for the CD, DVD and Blue Ray. I have measured them and they are all around 714 Ohms, that is the maximum that I have been able to measure but they are all at the maximum of 714 ohms. What is the potentiometer for each CD, DVD, and Blu-ray player, and how many ohms should each be? Perhaps they're not at the correct value, and that's why it won't read DVD and CD discs. How many ohms should all the motors measure? For example, I measured the ohms of the motor that moves the laser carriage, and they measure around 10.5 ohms to 11 ohms, more or less, and they are the first two contacts and the last two. On the other hand, the central motor that rotates the disc and the different coils measure values like 1.3 ohms, 1 ohm in some cases, up to 2.1 ohms, or rather small velocities between 1 ohm and 2 ohms, not including the multimeter leads. How many ohms should they measure? I would like to see the operation of one of these units, but in good condition, with the lid open to see how each motor should move and how it works in general. Okay, so for now, does anyone know which of the three potentiometers the unit has is the one for CD, DVD, and Blu-ray, and how many ohms each one should be? Thanks.
eject tray
unplug drive with tray out
pop off front bezel clips on sides and bottom with plastic tool
undo screws from bottom will be under stickers if you have an s13, 213 does not have stickers.
flip backover and remove top cover
clean lasers with a lint free cloth or qtip and alcohol and dry with another do this 2 times and do not let it air dry you must remove the residue with a dry one!