I have bought this Zener Diode for this project what size and wattage resistor value do I need to use to get near 50 watt output
I bought this from an eBay seller but unfortunately they only had one
I bought three from Vetco Electronics these are Sylvania ECG5185A 9.1@10w A to Stud what size and watt resistor do I need to use to get near 10 watt output
I bought three of from them to also make battery packs with this output power limit in mind
I want to use this battery pack and turn it into a 9.1 output battery pack output to eliminate using 9 volt battery...
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04-02-2025, 09:28 PM
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by SMDFlea
04-17-2025, 08:21 AM
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-
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I tried to update bios with ch341 and normally all is good.
now it says that buffer size is not equal to ic size.
I downloaded bios and ec from msi website.
Laptop model - GS66-10sfs
mobo model - MS-16V11 ver 1.0
Programmer used: ch341
ec chip - Mxic mx 25l12872f
bios chip - winbond 25q16jvnic
Tried ch341 programmer software and other softwares. I can read and write but buffer size is not the same as chip. Looms lije file is larger than chip can handle. Maybe need to trim file...Yesterday, 07:18 AM -
Hello to everyone in this wonderful forum.
I have this SONY LCD TV KDL_46R473a
PSU GL5 APS350 :1-888-122- 12
MAINBOARD FY13_EU IP-012C101-4010
black screen ,no STB no life almost death.
on PS all the required volts are present 394V on the main cap and those on cold side 12.41V,3.45 and 3.45 are on
Also 3,5,and 12v are on.
nothing happens if i disconnect the PSU from the mainboard as on Samsung because here i think the mainboard gives the signal to the ps.
don't know what to do next all suggestions and advice are very welcome...Today, 04:40 PM -
Hello,
I have an issue with this laptop. The original BIOS was already overwritten and was not saved before, so I don't have a dump or know which BIOS has to be flashed on this Device. In the HP image for this model, there are four different Versions:
[ATTACH=JSON]{"data-align":"none","data-size":"full","title":"grafik.png","data-attachmentid":3622469}[/ATTACH]
With two of those (08600, don't know without testing which is the second) the Laptop turns on, but no Display (also not on HDMI) and also no capslock...Today, 02:07 PM -
Hi people!
The board is LC57-IAU MB 213062 -1M.
[URL="https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-laptops-tablets-and-mobile-devices/schematic-requests-only/3280925-lc57-iau-mb-213062-1m-lenovo-ideapad-flex-5-14iau7-high-res-scans"]Here[/URL] is High res board picture, i could not find a schematic
what i have:
the board is working on battery, without battery type c remains on 5v with battery it is changing to 20v (0A pulled by board), but it powers on.
charging IC...04-04-2025, 03:47 AM -
brought in a working MacBook for battery replacement (swelled up). After replacing the battery it stopped turning on. tried connecting the old battery without changes. consumption with the battery connected and without the battery is the same 5v\0.200a on all 4 ports. replacing 9239 did not help04-20-2025, 03:22 PM
-
hi, i need bios for asus tuf gaming a15 FA506N is in black screen, DA0NJXMBAB0 REV B bin thanks
[SIZE=26px]post moved..[/SIZE]hi, i need bios for asus tuf gaming a15 FA506N is in black screen, DA0NJXMBAB0 REV B bin thanks
[SIZE=26px]post moved..[/SIZE]04-16-2025, 12:16 PM -
Hi guys, I need schematic and board view for Lenovo Legion S7 16IAH7 Laptop. Board is marked as NM-E461 R1-0
Thank you04-21-2025, 10:47 AM -
Hi everyone,
I'm the latest one to join the ever growing group of thousands of people screwed by the horrible HP bios upgrade that bricks your laptop
Anyway, I'm currently waiting for the 8 pin clamp adapter to arrive in the mail, because I'm extremely bad with soldering irons. I'm trying to reflash the eeprom without desoldering the chip.
I've taken the HDD out of the laptop, and I've inspected the HP folder in the EFI system partition. I've found a log file that hilariously says that everything went perfectly fine! (hahahah, YEAH, SURE!) and a "reconstructed"...Today, 02:49 PM -
hello, (sorry about the miss spelling in the title, can you fix it? its dag7hamb8f0)
laptop turnson screen lightsup but then it powers off and again
hp 15-eh0009la
DAG7HAMB8F0 REV F
PID 310G9LA
SN 5CD14 80RRS
RYZEN 7TH SERIES
with some of the bios i downloaded and try them, got picture saying firmware needs to be updated and after that , same issue
this is de bios dump that came with de laptop
thanks...04-17-2025, 03:41 PM
-
Hey guys,
so my half-year out of warranty Dell Latitiude 5320 (19817-1 SOUTH PEAK 13 10L) w/ i5-1145G7 and 16GB just started to act weirdly...
The first/upper USB-C/TB port suddenly didn't accepted the charger every time and sometimes only a different one... or with a different cable but so far, the self-diagnostics didn't noticed anything so I suspected a dirty port.
Today however... it stopped completely to accept a charger, the second/bottom one however does and after a half an hour, I notice something getting hot under there... blazing hot!
...Today, 10:27 AM -
Hi everyone,
I'm the latest one to join the ever growing group of thousands of people screwed by the horrible HP bios upgrade that bricks your laptop
Anyway, I'm currently waiting for the 8 pin clamp adapter to arrive in the mail, because I'm extremely bad with soldering irons. I'm trying to reflash the eeprom without desoldering the chip.
I've taken the HDD out of the laptop, and I've inspected the HP folder in the EFI system partition. I've found a log file that hilariously says that everything went perfectly fine! (hahahah, YEAH, SURE!) and a "reconstructed"...Today, 02:49 PM -
Hello,
I have an issue with this laptop. The original BIOS was already overwritten and was not saved before, so I don't have a dump or know which BIOS has to be flashed on this Device. In the HP image for this model, there are four different Versions:
[ATTACH=JSON]{"data-align":"none","data-size":"full","title":"grafik.png","data-attachmentid":3622469}[/ATTACH]
With two of those (08600, don't know without testing which is the second) the Laptop turns on, but no Display (also not on HDMI) and also no capslock...Today, 02:07 PM -
Hello Hello
i am searching for schematics and boardview for [B]DA0X3CMBAF0[/B]
Laptop wont charge / only 5V input
Thank You
Hello Hello
i am searching for schematics and boardview for [B]DA0X3CMBAF0[/B]
Laptop wont charge / only 5V input
Thank YouHello Hello
i am searching for schematics and boardview for [B]DA0X3CMBAF0[/B]
Laptop wont charge / only 5V input
Thank You
Today, 02:26 PM -
Hello to everyone in this wonderful forum.
I have this SONY LCD TV KDL_46R473a
PSU GL5 APS350 :1-888-122- 12
MAINBOARD FY13_EU IP-012C101-4010
black screen ,no STB no life almost death.
on PS all the required volts are present 394V on the main cap and those on cold side 12.41V,3.45 and 3.45 are on
Also 3,5,and 12v are on.
nothing happens if i disconnect the PSU from the mainboard as on Samsung because here i think the mainboard gives the signal to the ps.
don't know what to do next all suggestions and advice are very welcome...Today, 04:40 PM -
I have a TCL 43S435 with no backlights. I contacted ShopJimmy and they said power supply. I got replacement power supply, but still doesnt work. I have confirmed that there is an image with flashlight test. I have also verified that the led strips work when I probe them with LED tester. Any ideas would be helpful. I am also geting a double blink on the status led when trying to turn it on......Nothing on the power supply looks suspect, and caps look ok. Where should I start to test......Thanks!...Yesterday, 10:48 AM
-
[B][I]Have Dell [/I][/B]la-j081p laptop with battery issue.
First the laptop was not charging pqb25 was short after changing pqb25 and pqb26 the laptop starts charging and runs properly on charger but battery it shutdown after 10 seconds.
And when powered on only on battery the laptop turns off after 8-10 second without giving display.have tried another battery on another working laptop and it's working fine
I have changed charging ic and pqb25 ,pqb26 and pqb13.
When adapter is disconnected the laptop stays on battery for 8-10 sec then abruptly shutdown everytime.
...Today, 05:16 AM -
I have bought this Zener Diode for this project what size and wattage resistor value do I need to use to get near 50 watt output
I bought this from an eBay seller but unfortunately they only had one
I bought three from Vetco Electronics these are Sylvania ECG5185A 9.1@10w A to Stud what size and watt resistor do I need to use to get near 10 watt output
I bought three of from them to also make battery packs with this output power limit in mind
I want to use this battery pack and turn it into a 9.1 output battery pack output to eliminate using 9 volt battery...Yesterday, 05:50 AM -
Hello Friends
I have an asus zephurus s15 gx502 laptop, unfortunately I don't have a display on the laptop LCD, but it works fine on the hdmi
This happened when the battery socket was damaged during removal.
Now the voltages I have are as follows
+3VS_LCD_OC is activated at the moment of turning on the system and quickly turns off
And on the pins
LCD_BLEN_CON
LCD_PWM_CON
I have no voltage even at the moment of starting.
In addition, the LCD cable is also healthyToday, 11:41 AM -
[B]Inspiron 14 Plus 7420, need working bios or clean bios, thank you, here is attach dump file[/B]
[B]Inspiron 14 Plus 7420, need working bios or clean bios, thank you, here is attach dump file[/B]
...Today, 01:37 AM