How do I crack open a Dell 19.5v AC Adapter?
Sep 18, · Warning, once this is opened it cannot be closed again except with glue. That is by design, blame Dell, don't blame me. This is the easy and quick way to ope. Oct 30, · Dell Inspiron Laptop wouldn't turn on - when pressing power button, the light blinked a few times and nothing else, unless I was lucky - after an hour one tr.
Browse Community. Turn on suggestions. Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. Showing results for. Search instead for. Did you mean:. KarlPerry 2 Bronze. Me and a friend have identical Inspiron Es. His power supply died and was replaced, and Dell didn't require return of the old one.
Some supplies on older computers were fastened together with the screws under the label but I can't detect any detents under this supply's label. Why does the forum software prohibit posts with the word S. D in them? Seems a bit how to change the combination on a vaultz cash box to me. All forum topics Previous Topic Next Topic. NAB 3 Argentum. Well, as far as I know, they're actually made to not be openable.
That's why Dell wouldn't take it back. AlxMAX 3 Argentum. KarlPerry wrote: Why does the forum software prohibit posts with the word S. You do NOT want to open a Power Supply, much like desktop power supplies you will most likely get electricuted.
I would not suggest trying to get this working again, just toss it in the trash. If Edison was worried about being electrocuted we would not be having this conversation. I've opened supplies before and re-soldered broken electrical leads. I've opened toasters, and radios, etc. Got the supply open. I used a hacksaw to open how to save a money tree from dying corner, then used a screwdriver to pry open the rest of each edge.
Opened right up. Saw no obvious damage and no obvious broken wires, etc. Yes, I was careful to stay away from the capacitor and the transformer. I know they can be dangerous. I did not get electrocuted. I was not able to fix the unit.
I did throw it in the trash. Most of the AC adapters for laptops are switching power supplies, as you may now already. If you get the right equipment testers, osciloscopes, soldering toolsyou will manage to repair it. But in the end you will find that it is more expensive to repair it than to change it.
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Feb 10, · Open and Fix Laptop's AC Adapter without Damaging. DC cable and Capacitors Replacement. How to open Laptop's AC Power Adapter without damaging the plastic ca. The other 25% of the attempts results in the case being broken. Place a broad bladed tool such as a ” paint scraper along the seam and then give it a short sharp tap with a hammer and check if the case splits open. The sharper the blade the better. Re: Disassembling 65 watt power supply #LA65NSO Most of the AC adapters for laptops are switching power supplies, as you may now already. If you get the right equipment (testers, osciloscopes, soldering tools), you will manage to repair it. But in the end you will find that it is more expensive to repair it than to change it.
My power adapter has started to make lots of switching noise and I also need to replace the cord. The design is unfortunately curved and the seam is very thin. My adapter has the same noise, when i plug in jack to laptop, the noise will appear, plug out laptop the noise not appear. What's wrong with your adapter?
Did you repair it? If yes, could you share with me how to repair it? The coil or capacitor has fail? They've basically filled the entire thing up with epoxy or whatever it is.
Even the components themselves are completely covered and inaccessible. I put it away in the 'deal with later' bin. The seller gave to me another adapter and i see that the new one also has the noise but it is much smaller the old one. This is the reason they must glue by expoxy to prevent vibrate of coil and components on the board.
Is expoxy hard or soft like rubber? You can try remove them by oil, spray oil on it and waite few minutes. I bought 2 and one of them was DOA. I'm able to keep it, so I may see if I can open it or at least do an autopsy.
I no longer trust the good one with the intended system so I need to try again for that, but I'm okay with using the good one for a bag pack-in. I also have no hope in it being repairable due to how it failed unstable DC voltage; did not stay on so if I destroy it I destroy it.
Not completely yet, but I got past the end cap where the DC jack is installed. Let me think about if I should even detail it I have the photos available so if you or jayeff want them, I'll consider it. I changed another adapter, and it still has very small noise. The pulse adapter usually has noise. But if the noise is very loud, we should check it. Up to now, i don't know how to remove its cover Place a broad bladed tool such as a 1.
The sharper the blade the better. The failed attempts end in the case cracking and small pieces having to be glued back in place if possible. Usually I just glue it with a glue used for gluing paper and wrap some strips of electrical tape tightly around the case to hold it shut.
Thank you jayeff. I will try as you suggest - though in the meantime I will add some additional photos if you could kindly review in the meantime. It looks like a plastic weld seam along the side but first gently peel off the information label and check that there is no recessed screw under the label that may be holding it together and that they rest of the case is just snap fit lugs along the seam edge. If there is no screw then try opening it as described above. Start at the end along the seam where the cord has a groove to lie in as shown in the bottom image.
Obviously you can break it if you tap it too hard so don't overdo it but also don't be too timid. Also try not to make the tool go too far into the case as you might damage the components inside. I realize that it isn't easy and I've made mistakes when doing this as each case is not the same as far as the strength of the plastic is concerned but the idea is that you're pulling the tool back at the same time as hitting it preventing it going in too far.
Do you know which parts were fail in this case? I have the same adapter and have the same noise, when i plug in jack to laptop, the noise will appear, plug out laptop the noise not appear. I don't know the circuit for the adapter, but usually when "noise" appears on the output it means that the filtering capacitors are leaky. By this I don't mean that there is fluid coming out of them but that they allow through AC ripple currents into the DC path instead of shunting it away.
The best I can advise is check all the capacitors in the adapter. They might be smd type so it may be not so easy to know. Also having an ESR capacitor tester would definitely help but you would need to remove the capacitors to test them.
I refer some repairers and they said that the sound usually come from the coil, but it not mean the coil failure, the high oscillation of coild make the sound. The oscillation circuit has problem, we must to investigate more things to know which is failure part. However, I think your comment also right, the sound in my adapter looks like leaky current, it's small and high frequency. I hope ifix will have instruction to open this adapter in the near future. Show 1 more comment.
Nick nick. Power adapters with terminal issues like this should be deemed unrepairable since they can damage the computer over time. Do not repair it if you value your computer! Instead, check if the adapter is under warranty and get it replaced by Dell which may be hard due to the insulation damage , or just swallow the cost and buy a new one.
It's one thing if it's just frayed - fine I'll give you a pass if you pull a tested lead from another OEM charger with issues of similar spec - IF you solder and heatshrink it. But if it requires more you're risking the computer. However, if the capacitor of output circuit failure swell we can change them without any risk. The most important is we must open the box without damage it.
This is new model of adapter, and up to now i don't know how to open it. The way the OP described it doesn't sound good. Let's look at it from the perspective of many fixers who can fix them up. Repaired adapters are one of the reasons you see bad board machines, along with knockoffs. Outside of the cord, you're playing Russian roulette.
People try and save a buck but find their laptop is terminally damaged and dump it for parts without telling the person considering it, even if it's as-is. You end up with these great looking systems hiding difficult to repair damage. If I know it happened after you repaired your adapter or used a knockoff, at least I know it's probably toast But that never happens since I know to lower my offer as CYA. I understand the desire to save money on an old machine but there's a limit.
I draw the line at replacing thr power adapter which you can carry over to a new machine. I don't need the adapter most of the time if you just bought it and don't want to lose whatever you spent on it, providing it's the fat tip. I don't have a slim tip, so that may be worth something to me. Fix Your Stuff. Back Answers Index. Hi, My power adapter has started to make lots of switching noise and I also need to replace the cord.
Any advice? Answer this question I have this problem too Subscribed to new answers. Is this a good question? Yes No.
Voted Undo. Score 1. Hi simv, My adapter has the same noise, when i plug in jack to laptop, the noise will appear, plug out laptop the noise not appear.
Looking forward to your feedback. Thank you! Anyone have any idea on how to remove the epoxy without damaging it? Most Helpful Answer. Was this answer helpful? Score 3. Hi simeonv , It looks like a plastic weld seam along the side but first gently peel off the information label and check that there is no recessed screw under the label that may be holding it together and that they rest of the case is just snap fit lugs along the seam edge.
Hopefully you get what I'm saying. Good luck ;-. Hi jayeff, Do you know which parts were fail in this case? Nick nick Rep: Score 2. Hi Nick, You are right!
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