How to Fix CD or DVD Player No Disc Error - won't play cd
How to Fix CD or DVD Player No Disc Error - won't play cd
How to fix a No Disc / No CD / No DVD error on your CD or DVD player that won’t read discs easily. Remember to ALWAYS keep your equipment UNPLUGGED while repairing and proceed with caution.
Content
0.14 -> So I was given this Philips
2.08 -> unit it's a
4.2 -> low-cost
5.41 -> Home theater set up from years ago
10.389 -> They gave it to me somebody gave it to me for either get it working or parts or something
15.87 -> It sat around and I needed a radio for the shop. I thought well, maybe I can get this working
20.949 -> but since it sat around and had some
23.949 -> Some mildew on the board and it wouldn't really fire up the controls in the front didnt work. The display didnt work
29.97 -> So I put a little bit too much work into it to get it working
34.09 -> hello behold after I got everything going the
38.92 -> Dvd/cd drive now doesn't work which is pretty common for an old CD player
44.86 -> So if you have an old CD player, that just doesn't read discs anymore
49.149 -> I am going to show you how hopefully how to possibly get it to work. So you'll see it'll be something like this
56.5 -> That's another problem is the mechanism is now jammed
61.87 -> Which I also have to fix
64.72 -> It's a rabbit hole
68.659 -> Yes, it doesn't even try so
72.2 -> That is what we're going to try to fix
74.9 -> Ok closer. Look
76.79 -> It's good to know what you you're looking at. This is just the main board. It's got the amplifier
81.07 -> It's all the logic stuff. This is the sound chip
84.649 -> Obviously the disk drive
87.02 -> This is the power supply you want to stay away from this generally you want to discharge all the capacitors which are these things?
93.68 -> For this you're gonna be staying away from it
95.47 -> so it should be okay and they have this whole protective thing over top of it and make sure it's
100.13 -> unplugged
101.75 -> So what I did and every CD player every DVD player is gonna be different
106.7 -> But for this one just give me more room. I open the drawer and then pull the plug
110.35 -> So that gives me more room. This won't be in the way
112.64 -> And that way I don't have to disassemble the whole thing to take the drawer out
117.83 -> First thing to do is
119.78 -> Clean the laser. All you need is a clean q-tip. You don't need to wet it and you just gently clean it
126.56 -> I've done this already. I know this doesn't work for mine. It's clean, but
131.209 -> You can then put a disc in and see if that fixes the problem
133.6 -> If so button it up you're done, but I know that's not the case here. Let's
138.739 -> Turn it around on the back of the laser or on the back of the reader
145.67 -> Back here. Now you're gonna notice there's this little
149.329 -> Excuse little ribbon cable
152.54 -> Take these little clips
160.49 -> And pull that other way is kind of fragile, so just be careful again this is unplugged
167.4 -> And that gets that out of the way
170.19 -> Okay, and on the back of the board, you'll notice there's these two little trimmer pots
174 -> these little guys
175.68 -> adjust the amount of current going to the laser diode the way they have a set up is one is for
182.73 -> The DVD portion and one is for the CD portion. So what there's two things you can do
189.27 -> one
190.59 -> You get a multimeter, there are
193.95 -> Two posts on the bottom of each and a post in the middle you put the multimeter in ohms
201.27 -> Measure from the top and the bottom, right?
206.28 -> That way you establish what it was set at originally and you turn it clockwise very slightly and
213.9 -> Then try it again
216.72 -> If you don't have a multimeter you can do it the I guess you could say the redneck way and
222.57 -> That is get a fine sharpie and draw a line on it
227.22 -> Problem is these things are very really tiny. So
231.75 -> Makes it really difficult. That's what we're gonna try to do
240.93 -> The thing is if you go too far you're gonna burn it out
251.38 -> And the reason for doing this is a as a reference point can be if you ever have to get back to the way it
255.82 -> was stock
257.69 -> That's your record
261.26 -> But the thing is it doesn't work as it is so if you burn it out who cares!!
273.56 -> It's way too soon I gotta find a screwdriver to fit that
277.91 -> Now if you can find a screwdriver small enough you can use that to make the adjustment. Otherwise, I'm just going to use a
289.97 -> Just a small blade it's largely but it has a pretty fine tip
295.82 -> Just put it there you can feel where it wraps
298.73 -> My fingers, I believe so you can see and you're just going to turn it
302.38 -> I mean it's going to be just a hair. You're not even going to barely feel the turn just
307.76 -> Want to go in small increments and test it out to see if it works
311.47 -> You don't want to go too far because you don't want to put too much current through the laser diode
315.26 -> If you do ,you could possibly burn it out
318.65 -> These are already set at the factory
321.62 -> Usually close to or at the limit of the laser diode. So you're actually going to be pushing it beyond its limits
330.2 -> umm...Again I don't have the limits for what's actually in here
333.22 -> I don't have the specs for this board where the actual diode I haven't pulled it out to look but that's my guess
340.63 -> Over time they the output diminishes so you can
345.62 -> Push it a little bit harder to get some more life out of it. So I'm just going to turn this
350.66 -> To grab and I'm not even sure if you can see this on camera
355.34 -> I'm gonna turn them both just a little bit and
366.4 -> Take
391.52 -> Routing cable
402.17 -> I'm going to be putting back in here
409.58 -> Lock this in place just by pushing that closed
419.12 -> Or so that you could
436.49 -> See if it works
444.85 -> You know its loading ,it actually didn't do that last time there you go fixed
454.53 -> This is just YouTube music so the charity monetization or anything
463.509 -> So it's an easy fix, so if you have an old CD player DVD player
471.31 -> maybe fix would buy you some more time
Source: https://www.youtube.com/watch?v=DHpnVLR8TDs