Announcement

Collapse
No announcement yet.

Badcaps Electronics Repair Forum & Schematic Search

Collapse
 
  • Filter
  • Time
  • Answered
  • Show
  • New Topics
Clear All
new posts
No content found
Show More
 
  • Filter
  • Time
  • Show
  • New Topics
Clear All
new posts
Please log in to your account to view your subscribed posts.
Directory Topics Posts Last Post
Badcaps Capacitor & Electronics Repair Forum
Frequently Asked Questions (No Posting)
All new members, PLEASE READ HERE FIRST! Posting only allowed by established members.
Topics: 45 Posts: 733
45 733
Announcements & Related News
Site announcements, capacitor-related news, and anything relavant you might think of... Got News? POST IT!!
Topics: 236 Posts: 41,838
236 41,838
Document & Software Archive
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.
Topics: 1 Posts: 4
Last Post: ncp81208 datasheet
1 4
BAKEEL1990
General Topics
General Capacitor Questions & Issues
Questions and answers for identifying whether your device has bad capacitors. Also post general capacitor-related questions and issues here.
Topics: 3,183 Posts: 32,693
3,183 32,693
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!
Topics: 4,496 Posts: 74,830
Last Post: Windows 10 key?
4,496 74,830
dmill89
by dmill89
Troubleshooting Hardware & Devices and Electronics Theory
General Electronics Technical Discussion
If you have a general question concerning basic electronics theory or component function & usage, here's where it goes.
Topics: 3,971 Posts: 44,318
3,971 44,318
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!
Topics: 6,809 Posts: 37,282
6,809 37,282
manorap
by manorap
Sub-Forums:
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: 5,444
501 5,444
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: 31,863 Posts: 303,711
31,863 303,711
SMDFlea
by SMDFlea
Sub-Forums:
BIOS Requests ONLY! (12,700/152,964)
Schematic Requests ONLY! (4,733/28,450)
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: 5,321 Posts: 75,701
5,321 75,701
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: 27,446 Posts: 374,691
27,446 374,691
Troubleshooting Power Supplies and Power Supply Design
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: 4,180 Posts: 65,230
4,180 65,230
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: 301 Posts: 1,665
Last Post: Epson l3110 dump
301 1,665
hardwaretaj
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!
Topics: 2,321 Posts: 27,440
2,321 27,440
maleksa
by maleksa
Troubleshooting Appliances and other Household Electronic Stuff
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!
Topics: 222 Posts: 3,898
222 3,898
Troubleshooting Game Consoles & Other Weird Devices
This can be anything from game consoles to arcade games to anything else that doesn't really fit into any of the above categories. 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: 1,001 Posts: 10,869
1,001 10,869
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.
Topics: 1,376 Posts: 19,385
1,376 19,385

What's Going On?

Collapse

There are currently 348722 users online. 3760 members and 344962 guests.

Most users ever online was 1,342,976 at 10:51 PM on 04-26-2024.

Badcaps Statistics

Collapse

Topics: 102,210   Posts: 1,268,899   Members: 492,631   Active Members: 16,540
Welcome to our newest member, Rajitha Nawagamuwa.

Latest Topics

Collapse

  • cdsh009
    need bios motherboard d15s 08n1-18yq300 uma
    by cdsh009
    Hi,
    P/N: 08N1 18Y3Q00
    REV: 2.1
    UMA
    8mb bios
    thanks​...
    05-01-2024, 09:38 AM
  • MicroSMD Lab
    Eluktro Pro (Clevo) P650HP6, board number 6-71-P65P0-D02A board
    by MicroSMD Lab
    Hello, I have a bricked Eluktro laptop, can't seem to find a bios dump. I would like to have the ME cleaned please. The bios download from the Clevo repo has a file with a ".12" extension that is the same file size as the original bios but it is "configured" as opposed to "initialized" according to ME analyzer. I tried it and the laptop still did not boot.
    Can anyone help me clean ME or repair this bios please? I attached both files....
    05-01-2024, 03:03 PM
  • Pasglop
    Asus X421EA no longer starts
    by Pasglop
    Good morning
    I am encountering a problem on an Asus X421EA card which no longer starts; I checked the voltages, the 5v and 3vd are missing, has anyone encountered this problem, I have been looking for several hours without finding the source of the problem. Thank you!​
    Today, 02:27 AM
  • benwaterson
    Main rail / charging circuit issues on Bucky/BenSolo 17859-1 board from Dell Vostro 5581
    by benwaterson
    Hi All

    Been a while since I have been here, and a bit rusty.

    I have the above laptop motherboard that was working and now the charging circuit is faulty.

    Have 19v in fine until it hits PU4403 - not shorts I can see and thermal cam reveals nothing.

    I have swapped out the ISL9538 and also the two mosfets (PU4403 and PU4405). Have 2.8v at the power switch, which pulls low when pressed - charging light comes on and goes straight off

    Below are measurements (pin names are per the datasheet for the ISL95338 (couldn't find one for ISL9538,...
    Today, 03:25 AM
  • huzo
    Strange problem charging battery Toshiba Z50-E
    by huzo
    First of all i haven't found the board number other then FLESSY2 G4227A A4227A etched under the DC in connector...

    The problem is laptop does not charge the battery...Laptop works on battery and work on charger, but doesn't charge the battery... when off, it pulls 0.13A ,when turned on it pulls around 0.500A and has spikes 0.6-0.8 A when booting, i found that ISL9238H is the charging regulator and i replaced it with ISL 9538H and it's all the same...i checked all the passive components and all seem to be ok...

    Anyone have an idea what to look for next? The battery...
    Today, 01:58 AM
  • Alecs7
    Dell Latitude 7400 8FC8 16MB BIOS Unlock Request
    by Alecs7
    Hello,

    I have a Dell Latitude 7400, 8th Gen, with password locked BIOS, 16MB chip, please help me with unlocking the BIOS if you can.

    I attach the dump here. Thank you very much....
    Today, 03:55 AM
  • unimatrix93
    JVC lt-32hg35e (Vestel) blinking LED
    by unimatrix93
    Dear forum,

    I'm stuck with this old TV unit.
    PSU: 17PW04-1
    MB: 17MB62-1
    Symptoms:
    - Blue LED constantly blinking when connected to AC.
    - Only sigh of life is beeping when touching the capactive buttons on the front.

    Diagnostics so far:
    Checked the PSU output voltages:
    12V present
    5V present altought its only around 4.2V
    3V is present measured 3.4V.

    I check TP 202 which is for the short circuit protection: 0.606V on diode mode

    Since I met with some vestel models before with similiar symptoms...
    Today, 03:18 AM
  • battery.12v
    Asus G512LI VCCCore raise and drop
    by battery.12v
    Hello guys, Asus G512LI, came with 3.3V drop down immediately .... 5V was stable ... after search and work found that +3VSUS_MUX is the issue (caused by U4701A TUSB1146RNQR) , left off the ic .. 3.3V came up again stable ... after power on laptop turn on for 3 seconds and power off ... VCCcore raise 0.9V for 1.5 seconds and drop down all other voltages do same thing ... Ram voltage , Gpu voltages, concerning VCCGT 0V all the time
    Today, 03:43 AM
  • andresi
    Portege X40-J need bios
    by andresi
    cant display, can someone repair my bios?...
    Today, 01:08 AM
  • corrize
    How to diagnose little step down and power management BGA chips never shorted
    by corrize
    [FONT=Calibri]Hello,[/FONT]
    [FONT=Calibri]I have different sort of those little BGA chips (step down DC-DC, power management battery, …) I replaced 10 on differents mobile devices (no schematics) but I noticed often they can be dead but never shorted. I see some signs : burn marks, resistance drop by comparison with good board (40 KOhms to 1 KOhms for example)… but not easy to be sure of the diagnose. Because I can't access on all tracks (balls) with the meter.
    Sometime, I know only after replacing chips.[/FONT]
    [FONT=Calibri]Do you have tips for diagnose please ?[/FONT]
    ...
    Yesterday, 08:30 AM

Trending

Collapse

  • unimatrix93
    JVC lt-32hg35e (Vestel) blinking LED
    by unimatrix93
    Dear forum,

    I'm stuck with this old TV unit.
    PSU: 17PW04-1
    MB: 17MB62-1
    Symptoms:
    - Blue LED constantly blinking when connected to AC.
    - Only sigh of life is beeping when touching the capactive buttons on the front.

    Diagnostics so far:
    Checked the PSU output voltages:
    12V present
    5V present altought its only around 4.2V
    3V is present measured 3.4V.

    I check TP 202 which is for the short circuit protection: 0.606V on diode mode

    Since I met with some vestel models before with similiar symptoms...
    Today, 03:18 AM
  • benwaterson
    Main rail / charging circuit issues on Bucky/BenSolo 17859-1 board from Dell Vostro 5581
    by benwaterson
    Hi All

    Been a while since I have been here, and a bit rusty.

    I have the above laptop motherboard that was working and now the charging circuit is faulty.

    Have 19v in fine until it hits PU4403 - not shorts I can see and thermal cam reveals nothing.

    I have swapped out the ISL9538 and also the two mosfets (PU4403 and PU4405). Have 2.8v at the power switch, which pulls low when pressed - charging light comes on and goes straight off

    Below are measurements (pin names are per the datasheet for the ISL95338 (couldn't find one for ISL9538,...
    Today, 03:25 AM
  • Pasglop
    Asus X421EA no longer starts
    by Pasglop
    Good morning
    I am encountering a problem on an Asus X421EA card which no longer starts; I checked the voltages, the 5v and 3vd are missing, has anyone encountered this problem, I have been looking for several hours without finding the source of the problem. Thank you!​
    Today, 02:27 AM
  • clrscr
    bios panasonic CF-SV1RDLVS need help!
    by clrscr
    please help me unlock password bios panasonic CF - SV1RDLVS
    SN: 2BKSC68044
    THANKS!...
    Today, 02:03 AM
  • huzo
    Strange problem charging battery Toshiba Z50-E
    by huzo
    First of all i haven't found the board number other then FLESSY2 G4227A A4227A etched under the DC in connector...

    The problem is laptop does not charge the battery...Laptop works on battery and work on charger, but doesn't charge the battery... when off, it pulls 0.13A ,when turned on it pulls around 0.500A and has spikes 0.6-0.8 A when booting, i found that ISL9238H is the charging regulator and i replaced it with ISL 9538H and it's all the same...i checked all the passive components and all seem to be ok...

    Anyone have an idea what to look for next? The battery...
    Today, 01:58 AM
  • mrgumshot
    Lenovo Ideapad Gaming 3 15IMH05 - BIOS REQUEST
    by mrgumshot
    Hi all,

    I've got a Lenovo ideapad gaming 3 15IMH05 with a black screen issue. I've tried a BIOS file which i saw in another post and changed some things in a Hex editor.
    So i transfered the DMI info from my original BIOS to the one i got from the post. Flashed it to the chip and the laptop was booting again but very slow post.

    After a couple of boots it went back to black screen again. Tried to flash the same BIN file on it which i used before but its staying at the black screen now unfortunately.

    I hope someone can help me out. Attached is my [B]ORIGINAL...
    Yesterday, 12:18 PM
  • andresi
    Portege X40-J need bios
    by andresi
    cant display, can someone repair my bios?...
    Today, 01:08 AM
  • Alecs7
    Dell Latitude 7400 8FC8 16MB BIOS Unlock Request
    by Alecs7
    Hello,

    I have a Dell Latitude 7400, 8th Gen, with password locked BIOS, 16MB chip, please help me with unlocking the BIOS if you can.

    I attach the dump here. Thank you very much....
    Today, 03:55 AM
  • battery.12v
    Asus G512LI VCCCore raise and drop
    by battery.12v
    Hello guys, Asus G512LI, came with 3.3V drop down immediately .... 5V was stable ... after search and work found that +3VSUS_MUX is the issue (caused by U4701A TUSB1146RNQR) , left off the ic .. 3.3V came up again stable ... after power on laptop turn on for 3 seconds and power off ... VCCcore raise 0.9V for 1.5 seconds and drop down all other voltages do same thing ... Ram voltage , Gpu voltages, concerning VCCGT 0V all the time
    Today, 03:43 AM
  • Xrious
    Panasonic TH-55FX600 - No standby LED
    by Xrious
    Got a TH-55FX600 that is showing no signs of life.

    Outputs from the P board look good, but no 12V on the A board.

    Very similar to [URL]https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-tvs-and-video-sources/110001-panasonic-tx-65fx623e-identidy-ic[/URL] but where Tibd has 3.3v on the EN pin I have nothing, no voltage at all.

    Looking at the diagram for the IC I can see the enable is W_OPCTRL9, but I can't find a source for this, can anyone help please?

    Stu

    [ATTACH=JSON]{"alt":"Click...
    Yesterday, 08:56 PM
Working...
X