DPS5020 "power supply"

kitedude

New Member

Join Date: Nov 2024

Posts: 4

Country: greece
#1

DPS5020 "power supply"

11-26-2024, 04:55 AM

Hello. I have the dps5020 and I've blown the mosfets which I've replaced but the D5 diode is unrecognizable.Maybe someone has the schematic or the same device? Anyone knows what it is and where does the cathode go? (left or right) I'm a noob so I know nothing about anything. Complicated answers will not be understood.
Damage was due to reverse polarity for a second but it worked for months with bulged mosfets, then the final blow was more input voltage than 50v.
Tags: None
CapLeaker

Leaking Member

Join Date: Dec 2014

Posts: 8161

Country: Canada
#2

11-26-2024, 05:43 AM

Here is a picture of D5. The diode has a marking of T4, SOD123 or SOD323. Probably is just a small signal diode like a 1N4148.
Attached Files
Comment
kitedude

New Member

Join Date: Nov 2024

Posts: 4

Country: greece
#3

11-26-2024, 11:10 AM

Exactly what I was looking for! Thank you.
Comment

Previous template Next

Dead Corsair TX650M

by quicknick

Hello everyone,

PSU is made in late 2019 and seems barely used judging by the lack of dust on its innards.
+5Vsb is all right, grounding PS_on results in a relay clicking and nothing more, all outputs dead without even a flinch.

Checked inside, at first glance all seemed ok but then noticed something on the primary heatsink, which I promptly removed along with all its attached devices - there were clear signs of insulation breakdown above the C3D04060 diode. The device was overtightened from factory and the tab squished the sil-pad, it all was a matter of time,...

2 Photos
- Channel: Troubleshooting Power Supplies and Power Supply Design
10-09-2024, 02:52 PM
Zombie Samsung UN55NU6900F dead / no standby voltage - randomly came to life after hours of troubleshooting then died

by tvguy12012012120

This is my first attempt at troubleshooting a board like this, I know I could just buy a new board but I'm curious to figure out how this works. I've been testing different components in the evenings this week and I think the problem is with the IC failing to start up for some reason. When the board is plugged in there is no standby voltage.

Then today it randomly sprung to life like a zombie but shortly died thereafter. I have no idea why it would have done that and its the first time I've seen it running. I discharged capacitors on the board last night, then it was sitting today....
- Channel: Troubleshooting TVs and Video Sources
02-07-2025, 05:13 PM
Harman Kardon sub TS11 (ds15 amplifer) blows fuse and mosfets

by BlackScreen_22

Hi, I'll start by saying that I'm not an expert and I've reached a point where I don't know what to try/do anymore...
Starting from the beginning: I opened this subwoofer for the first time with a very strong smell of burnt electrical components, I realize that on the amplifier board there is a hole between V+ OUT and GND about the size of a finger, the damaged components were the shorted mosfets, two damaged zener diodes and two capacitors. I bought everything, I fixed the hole by cutting the pcb and putting a piece of a perforated board.
I had no problems connecting mosfets and capacitors,...
- Channel: Troubleshooting Audio Equipment
08-27-2024, 12:46 PM
Seasonic B12 BC-550 – barely 2 years old and with BAD CAPS already!

by momaka

I know I've been a little scarce lately (like the last 2-3 years), but I'm still here and still doing my thing with fixing PSUs.

For today's considerations, I have a Seasonic B12 BC-550 [A551bcafh] 550 Watt ATX power supply for you (click on links for full size images).

https://www.badcaps.net/filedata/fetch?id=3591771

https://www.badcaps.net/filedata/fetch?id=3591772

It's a modern ATX unit with fixed (non-modular) cables and an 80-plus bronze certificate. Here's the label:

https://www.badcaps.net/filedata/fetch?id=359177...
- Channel: Troubleshooting Power Supplies and Power Supply Design
03-12-2025, 03:42 PM
Finding replacement diode iPad Pro 3rd gen A1701

by asr

Hello, I am looking for help to replace a damaged diode. The tristar was replaced and a diode was damaged in the process. I have a picture of the diode but dont have an exact donor. I mostly have macbooks for donors and only a few ipad and iphone boards. Diode part number: DSF01S30SCAP
Im not sure where to find the ipad board number. Anybody have an idea where else this diode is used on other boards? Thanks....
- Channel: Troubleshooting Laptops, Tablets, and Mobile Devices
07-09-2024, 06:24 PM
Loading...
No more items.

DPS5020 "power supply"

DPS5020 "power supply"

Comment

Comment

Related Topics