Help to identify a SMD IC

mitchw

Senior Member

Join Date: Dec 2016

Posts: 136

Country: Slovenia
#1

Help to identify a SMD IC

08-15-2019, 08:48 PM

I was diagnosing a bad computer graphics card which had no Vcore.
The output is not shorted, and the MOSFETs are fine.

Most likely the control IC is bad. However, it has some strange SMD markings, I couldn't decipher. See the attached picture. I hope it is clear enough.

Could anyone help?
Attached Files
Tags: None
mitchw

Senior Member

Join Date: Dec 2016

Posts: 136

Country: Slovenia
#2

08-16-2019, 02:43 PM

Re: Help to identify a SMD IC

Forgot to add, the IC in question is the one with markings:
JJ FE 28U.
Comment
SMDFlea

Super Moderator

Join Date: Jan 2018

Posts: 20773

Country: UK
#3

08-16-2019, 03:25 PM

Re: Help to identify a SMD IC

It could be a Richtek RT8202MZQW http://www.s-manuals.com/smd/jj

https://cdn.badcaps-static.com/pdfs/...41742c846f.pdf

All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters
Comment

Previous template Next

Help me identify this chip the markings is AKLG 302

by Stunt

Hi i need somebody to help me identify this chip the markings is AKLG 302. It's on Hp Pavilion 14-am 245 G5 6050A2823301-MB-A02 motherboard

...
- Channel: Troubleshooting Laptops, Tablets, and Mobile Devices
06-19-2023, 12:30 PM
Failed to identify SMD component with markings 81 and 947 and package SOT-89

by digitalDNA

Hello,

I can't identify a component labeled Q1 on the main board of a redundant server PSU from Etasis, product name EFRP-465

ICs on the board have labels with prefixes U, so we have U1, U2, etc. The mysterious component is labeled Q1, so it must be a transistor (BJT)/MOSFET/etc.

I have attached the image for Q1.
I have searched multiple SMD reference websites without being able to identify the component.

Here is some important information from the board::
1. Pin 2 and the tab are connected to GND (after unsoldering Q1,...
- Channel: General Electronics Technical Discussion
10-07-2022, 04:47 PM
Help Identify this IC rom Laptop screen. Markings are "40=".

by Beertimenow

Hi is any1 know what component is it?
It is a LED driver or controller from Laptop screen.
Markings are "40=".
I've attached a photo if this ic.
Thanks...
- Channel: Troubleshooting Laptops, Tablets, and Mobile Devices
05-23-2022, 03:48 AM
Wine Enthusiast 170 Bottle N'Finity Wine Cellar Model # 273 02 70

by magik20

Hi everyone,

I'm hoping someone might be able to offer some guidance on repairing a Wine Enthusiast N'finity 170 bottle wine cellar, model 273 02 70.

I recently acquired this unit for free via Facebook Marketplace, hoping to fix it up as a gift for my wife. I have some basic electronic skills (comfortable with a multimeter, basic soldering, identifying components) but I'm definitely not an advanced technician.

The main challenge is that when I picked up the unit, the main control/power board had already been removed and the previous owner said it needs a...
- Channel: Troubleshooting Appliances and other Household Electronic Stuff
04-30-2025, 04:46 PM
DVR HIKVISION DS-7208HWI-E1/A BOARD DS-80104 REV 2.2 help identify burnt components

by thesame

Hy guys , i have a DVR board DS-80104 REV 2.2 that was powered wrong, i have some smds on the board that are blown and i can't identify them , maybe if someone has this board somehow and we can identify the smds', i have searched online and i can't find a schematic.
The smds are SOT-23-6 , one of them i think it has the marking ADJF since i found another one on the board with this marking , but the other one it seems that it starts with AG or it looks like. I would really apreciate if someone could help me identify those IC's .

...
- Channel: Troubleshooting TVs and Video Sources
02-27-2024, 04:31 AM
Loading...
No more items.

Help to identify a SMD IC

Help to identify a SMD IC

Comment

Comment

Related Topics