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Badcaps Capacitor & Electronics Repair Forum | ||||||
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All new members, PLEASE READ HERE FIRST! Posting only allowed by established members.
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45 | 733 | ||||
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Site announcements, capacitor-related news, and anything relavant you might think of... Got News? POST IT!!
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Common Parts Library - Datasheets
Share or download datasheets or application notes for electronic components and other parts. Contribute your knowledge or ask questions. Before using please read our Terms of Service.
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Posts: 4
Last Post:
ncp81208 datasheet
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General Topics | ||||||
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Questions and answers for identifying whether your device has bad capacitors. Also post general capacitor-related questions and issues here.
Topics: 3,190
Posts: 32,713
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General Computer & Tech Discussion
Have just a general computer question, post it here. This can be anything from an OS issue, hardware issue not related to capacitors, upgrade question, or whatever basic tech-related issue is on your mind.... This is also a good place to share your tech projects!
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Need help DDR5 SPD got corrupted
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If you have a general question concerning basic electronics theory or component function & usage, here's where it goes.
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opto something Liteon 816A4
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Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals
Technical discussions covering any type of desktop motherboard, video/graphics card, controller card, or whatever other desktop peripheral you need help with. Any and all brands and models welcome. When starting a new thread, please put the make AND model of your device in the thread title. Also be VERY descriptive of your issue, that way you'll get the best answer possible!
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Troubleshooting & Designing Networks
Post your computer network questions, ideas, gripes, and so on in here. This can be any type of network, whether its cabled, wireless, or whatever. When starting a new thread, please put the make AND model of your device in the thread title. Also be VERY descriptive of your issue, that way you'll get the best answer possible!
Topics: 501
Posts: 5,455
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501 | 5,455 | ||||
Troubleshooting Laptops, Tablets, and Mobile Devices
Technical discussions covering any type of laptop, notebook, netbook, tablet, or smartphone. Any and all brands and models welcome. When starting a new thread, please put the make AND model of your device in the thread title. Also be VERY descriptive of your issue, that way you'll get the best answer possible!
Topics: 32,116
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Motherboard Dell 5531 schematic?
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Troubleshooting Computer Displays
Technical discussions covering any type of PC/computer display, whether it be CRT, LCD, or anything else. When starting a new thread, please put the make AND model of your device in the thread title. Also be VERY descriptive of your issue, that way you'll get the best answer possible!
Topics: 5,329
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Dell P2417H white screen display
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Troubleshooting TVs and Video Sources
Technical questions about your defective television, projection screen, LCD/plasma, or any other type of video device. When starting a new thread, please put the make AND model of your device in the thread title. Also be VERY descriptive of your issue, that way you'll get the best answer possible!
Topics: 27,481
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Samsung ue49mu6120
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Technical discussion for power supplies. This covers PC supplies, and any other related power supply issue. When starting a new thread, please put the make AND model of your device in the thread title. Also be VERY descriptive of your issue, that way you'll get the best answer possible!
Topics: 4,190
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Last Post:
Welder not turning on - Learning
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Troubleshooting Printers, Copiers, Scanners and other Imaging & Printing Devices
Technical questions about your defective laser or ink printer, plotter, copier, scanner, and other imaging & printing devices. This section also includes digital cameras. When starting a new thread, please put the make AND model of your device in the thread title. Also be VERY descriptive of your issue, that way you'll get the best answer possible!
Topics: 304
Posts: 1,675
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304 | 1,675 | ||||
Troubleshooting Audio Equipment
Technical discussion on audio equipment troubleshooting and installation. This can be anything from a home/car stereo, guitar amp, and so on. When starting a new thread, please put the make AND model of your device in the thread title. Also be VERY descriptive of your issue, that way you'll get the best answer possible!
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Denon UCD77 schematic
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Technical discussion on household appliances & other household electrics & electronics; including troubleshooting and installation. This can be anything from a washer/dryer, dishwasher, microwave oven, other sordid kitchen electrics and so on. When starting a new thread, please put the make AND model of your device in the thread title. Also be VERY descriptive of your issue, that way you'll get the best answer possible!
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Last Post:
BOSCH Microwave CFA634 error E1006
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Topics: 1,008
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Audi Smart Key Touch Screen not working.
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Equipment Usage, Soldering, Techniques, and Reviews
Technical discussions concerning soldering techniques, usage of test equipment, how it works, what's best, and some pointers in using it all.
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Badcaps Statistics
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Topics: 102,655
Posts: 1,273,870
Members: 495,965
Active Members: 17,076
Welcome to our newest member, humawy.
Latest Topics
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by ctebkeHello, I need schematic for dell 5531? Or if someone can identify PU4501, chip marking "R9E1D" (I dont know where to buy or how to identify part) controller for 3.3v. Motherboard Dell 5531 213002-1.
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Channel: Schematic Requests ONLY!
Yesterday, 10:58 AM -
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by hamzafoxNeed bios
motherboard code. 19775-1
RD2X4$LA
CPU SRG0N I7-1065G7
GPU [B]Nvidia N17S-G3-A1 (GeForce MX330)
SERVİCE TAG . 5LTG303
There is no backup
I tried these files but they didn't work [url]https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-laptops-tablets-and-mobile-devices/bios-requests-only/92728-dell-inspiron-5401-5408[/url][/B]Need bios
motherboard code. 19775-1
RD2X4$LA
CPU SRG0N I7-1065G7
GPU [B]Nvidia N17S-G3-A1 (GeForce MX330)
SERVİCE TAG . 5LTG303
There-
Channel: BIOS Requests ONLY!
Today, 03:52 AM -
-
by ManhattanHello Everyone,
i have an Lenovo Thinkpad T495s Type 20QK
Board FA391/FA491 NM-C181 Rev:1.0 2019-03-21
Bios Chip from Winbond W25Q128FWSQ 1.8v
I thought it was easy process after I got the CH341a mini Programmer with 1.8v Adapter
I read the BIOS file with CH341a Programmer and saved it
After following the instructions LENOVO BIOS AUTO-PATCHER for Supervisor Password Removal
To patched bios file
i get patched file bin and programing it
Then I opened the computer Black screen and Has 4 short beeps With the cooling fan stopped
After that,...2 Photos-
Channel: BIOS Requests ONLY!
Today, 03:51 AM -
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by chumatezPLEASE I need help on HP Stream Laptop 11-ak0040nr BIOS BIN FILE.
motherboard model is DAY0QMB16A0 REV:A.
i attached the old one below...-
Channel: BIOS Requests ONLY!
Yesterday, 05:10 AM -
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by wetpretzel2Can I please get a board view for the A1466 MacBook Air? 820-00165A
-
Channel: Schematic Requests ONLY!
Yesterday, 10:21 PM -
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by hopkokHi masters, anyone can help me with BIOS? Long story short, spilled unit, did not start at all. Found two burned resistors in 3.3/5V step down controler. Now unit start, but it takes 30-40 second to get a picture and than FANs start run at full speed and turn off after 20 seconds, so could be ME corrupted...
Lenovo Legion PRO 5 16IRX8
S/N: PF4MN0RM
Board: NM-F091
i9-13th + RTX 4070
Both dumps attached. I tried to clean, but I am not getting picture at all, even after minute.
There is no boardview and schematic, so would like to try...-
Channel: BIOS Requests ONLY!
Yesterday, 03:03 AM -
-
by sauceHi,
I bought a faulty A2289 for myself.
The USB-C meter was stuck on 5V.
After remove the board the U3100 was corroded and also around but quite light.
So I clean the U3100 and see R2834 in bad condition and its value was not good.
I replace it and not the USB-C meter shows 20V, the fan is spinning, CPU is hot but nothing else no picture.
The USB-C meters shows a very low current with all connected. It starts at 20v few mA and then stays at 20v 100mA.
How mush current the board is supposed to take without nothing...05-19-2024, 12:20 AM -
by bschwandHi all,
as subject line says, I have a laptop that reboots after 30 minutes. Investigation leads me to believe that is due to intel ME as it happens everytime after 30 minute from boot, it just turns off, no overheating, nothing weird.
I found a lot of information about cleaning ME like this [URL]https://winraid.level1techs.com/t/guide-clean-dumped-intel-engine-cs-me-cs-txe-regions-with-data-initialization/31277[/URL] and this [URL]https://github.com/corna/me_cleaner[/URL]
Anyway, first step is to dump the bios. I found the Winbond W25Q64FV chip on the motherboard, dumped...Today, 02:48 AM -
by DemonhillHello guys yesterday i opened a post to request the help in removing password from this laptop but i don't know why my postit's now removed. I don't think to broke the rules but maybe the link for the dump was the problem. Anyway i opened again the request hoping that someone can help and that im not doing anything wrong. Thanks
-
Channel: BIOS Requests ONLY!
Today, 01:11 AM -
-
by yop_FRHello,
I have 2 laptops E14 and one E15 with the same problem: don't turn on (no led) I suspect the bios and I have buy an CH341A.
But now I need a new bios...
I give below the older bios, can you check it please, or give a valid version of BIOS?
I will be very grateful to you
At first, this is the numbs of a e14: 20TA-00EWFR
with a bios chip: Gigadevice GD25Q80
Motherboard: GE4B0/GE5B0 NM-D011
thanks...-
Channel: BIOS Requests ONLY!
05-17-2024, 02:58 PM -
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by DemonhillHello guys yesterday i opened a post to request the help in removing password from this laptop but i don't know why my postit's now removed. I don't think to broke the rules but maybe the link for the dump was the problem. Anyway i opened again the request hoping that someone can help and that im not doing anything wrong. Thanks
-
Channel: BIOS Requests ONLY!
Today, 01:11 AM -
-
by wetpretzel2Can I please get a board view for the A1466 MacBook Air? 820-00165A
-
Channel: Schematic Requests ONLY!
Yesterday, 10:21 PM -
-
by notrespondHello, i have problem for no display laptop HP 14-ce3072tx, can help me to rebuild my old bios
TYPE = HP 14-ce3072tx
SN = 5CD01156YN
MODEL BOARD = DAG7ALMB8C0 REV : C...-
Channel: BIOS Requests ONLY!
Yesterday, 10:08 PM -
-
by bschwandHi all,
as subject line says, I have a laptop that reboots after 30 minutes. Investigation leads me to believe that is due to intel ME as it happens everytime after 30 minute from boot, it just turns off, no overheating, nothing weird.
I found a lot of information about cleaning ME like this [URL]https://winraid.level1techs.com/t/guide-clean-dumped-intel-engine-cs-me-cs-txe-regions-with-data-initialization/31277[/URL] and this [URL]https://github.com/corna/me_cleaner[/URL]
Anyway, first step is to dump the bios. I found the Winbond W25Q64FV chip on the motherboard, dumped...Today, 02:48 AM -
Hi, anyone got a schematics or boardview for this board? ty much appreciated.
ASUS X450LD Rev.2.1-
Channel: Schematic Requests ONLY!
Today, 01:52 AM -
-
by chumatezPLEASE I need help on HP Stream Laptop 11-ak0040nr BIOS BIN FILE.
motherboard model is DAY0QMB16A0 REV:A.
i attached the old one below...-
Channel: BIOS Requests ONLY!
Yesterday, 05:10 AM -
-
by johnbetonHello,
I have a A1706 with 820-00923-A board. The laptop came in with non-working keyboard. I bought a new top-cover with keyboard and transfered everything to the new topcover.
Since then the macbook will not charge or power-up. Before replacing top cover, I started the macbook to test, and it worked fine apart from keyboard. Then shut it down and did replacement.
This is what I measure so far:
Resistance from F7000 to ground is 123 Ohm on pin 1 and 2
PPBUS_G3H = 0,79v
PPBUS_HS_CPU = 0,79v
PPBUS_HS_OTH5V = 0,79v
PPBUS_HS_OTH3V3...Yesterday, 02:06 PM -
by ianbakHi,
I have an HP 255 G8 that runs for as long as its battery holds charge but won't accept AC power.
I have partially diagnosed the problem and the issue seems to be that there is no ACDRV output from the BQ24735 to turn on the two input MOSFETs. The 24735 has a VCC of 19.57 V, the ACDET input is at 2.93 V and the REGN 6V LDO is outputting 5.98 V, so everything looks good - but ACDRV is stuck at 28 mV.
I've already replaced the 24735 and both input MOSFETs and nothing has changed.
I'd appreciate some suiggestions as to what to try next.05-20-2024, 08:45 AM -
by Olles4Hello people. I trying to repair my welding machine oerlikon citomig 180mp hpf and there is a little board with blown stuff.The problem is i cant identify the value of the blown resistor and diode. Any suggestion?4 Photos05-18-2024, 01:22 PM
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by matheus30When I took it out it broke, and I want to get the same one or one of good quality.
Where can I buy it? On AliExpress they do not indicate the maximum amperages, and on Mouser or TME.EU it is impossible to search without having the exact reference.
Inductor needed:
It is the PP5V_G3S Coil of an A2159, 820-01598 (L7670)
On the front it says: 1R5
and in the schematic:
1.5UH - 20% - 12.5A - 0.017Ohm
PIMB062D-SM
152S00268
Can someone tell me where to buy it?
Thank you so much.05-20-2024, 11:44 AM