TDK ZWS150BAF-12

[Keshenatech1]

Does anyone have a schematic or parts list for a ZWS150BAF-12 12V power supply? I have a dead one and I've determined the surface mount diode on the back side of the board that connects from the center leg of Q3 to the + side of the 420V 60uf capacitors has a 3.5 ohm short. I'm not having much luck trying to identify the diode as the part number is not very legible. In the attached picture, it's the black rectangular diode in the center. There are some numbers on it but I can't even tell if it's right side up or upside down. The picture is from a 2nd good working unit which is more legible...

[ladharimohamed2]

I need bios for toshiba satellite pro r50-b-15j motherboard faebsy2
i have tried this :

but no power
and i tried this



the laptop worked but asked for a password
i have tried many with same motherboard name wich is FAEBSY2 A5A003954010 A but the laptop didnt turn on (no lights, no fan spinning)
i have attached my original bios wich has been corrupted after a windows update (turn on but black screen)
if any have the bios for the exact model name will be great "toshiba satellite pro r50-b-15j"...

[limpidity]

Please let me know the resistance value shown in the picture...


If you have a circuit diagram, please share it......

[emaghanim]

[URL="https://www.badcaps.net/filedata/fetch?id=3255112"]Lenovo X1 Carbon NM-B481 me cl.rar[/URL]
Pls help me change the Thunderbolt option in setup to be disabled as defualt or permanent disable[URL="https://www.badcaps.net/filedata/fetch?id=3255112"]Lenovo X1 Carbon NM-B481 me cl.rar[/URL]
Pls help me change the Thunderbolt option in setup to be disabled as defualt or permanent disable...

[totto210]

hey guys, need this pls [URL="https://www.ecs.com.tw/ls/Product/Motherboard/H510H6-M2/overview"]H510H6-M2[/URL]
[url]https://www.ecs.com.tw/ls/Product/Motherboard/H510H6-M2/download[/url]
the one in site is for upgrade hey guys, need this pls [URL="https://www.ecs.com.tw/ls/Product/Motherboard/H510H6-M2/overview"]H510H6-M2[/URL]
[url]https://www.ecs.com.tw/ls/Product/Motherboard/H510H6-M2/download[/url]
the one in site is for upgrade hey guys, need this pls [URL="https://www.ecs.com.tw/ls/Product/Motherboard/H510H6-M2/overview"]H510H6-M2[/URL]

[timematcher]

Dear friends,

I am in need of the schematic diagram for [B]DAX32DMAD0[/B] HP Spectre X360 [B]15-BL112DX[/B] (8th generation)



[ATTACH=JSON]{"alt":"Click image for larger version Name:\timage_2024-04-18_050809732.png Views:\t0 Size:\t2.02 MB ID:\t3255091","data-align":"none","data-attachmentid":"3255091","data-size":"full","title":"image_2024-04-18_050809732.png"}[/ATTACH]

ThanksDear friends,

I am in need of the schematic diagram for...

[Kambi13]

Hi all, need some help, I've got a Lenovo V14-IIL that as total of 8GB of RAM (4GB onBoard - 4GB Sloted), out of the blue it stopped posting, After investigating, found out that removing the RAM stick from the slot, the laptop would post and work with no other issues. So tried with a different RAM stick suspecting that the original one somehow died, but to my frustration the issue remained, so again tried a different number of known working RAM sticks with different capacities and speeds but with no avail.... Unplugged Battery, removed CMOS battery,Reset and Updated Bios, also measured voltages...

[chaos-theory]

I have a card that does post at all, the owner said it does go into windows but it gets stuck on the logo with artifacts, I have no idea if he is lying or not... I tried the card on my pc and it does not post at, no beeps, no bios nothing just all fans turning and nothing else. I tried plugging DVI or hdmi but nothing, I tried unplugging the 8 pin plug from the power supply and it's the same thing.
I just want it to post and get into the bios at least.
Forgive me if I am wrong, but I tested the 3 PCIe 12v power pins on the left(550ohm) and the 4th one from the right 3.3v (400ohm),...

[chth96]

I usually tried to find datasheet which contains Maximum ESR value like KME datasheet.
[URL]https://www.westfloridacomponents.com/mm5/graphics/S06/KME250VB10RM10X20LL.pdf[/URL]

As far as I know,Maximum ESR means boundary ESR value for bad capacitor.
But,In many case,there is no ESR value in datasheet like below links.
[URL="https://www.mediafire.com/file/fhe8h0x4fmblgzn/SAMWHA-RG_Series_.pdf/file"]SAMWHA-RG Series (mediafire.com)[/URL]
[URL="https://www.mediafire.com/file/wwiiluhtci0qxb0/samyoung_SMS_Series.pdf/file"]samyoung_SMS_Series...

[ktmmotocross]

Hello.
Have this Asus RTX2060S dual EVO that dont release core EN because THERM_OVERT* from core is put to low. Anybody knows what triggered this event?
i have some other cards that do the same so i need to realize why

[hemant_2222]

Hello Friends,

Greetings!

I have taken this active subwoofer from Wharfedale for restoration. This is already in a bad shape as far as the connections goes. It has already been worked by local technicians. The most important part that I am looking forward is the schematic diagram, as there is jumper placed and a track has been cut, as if to bypass the actual connection. I am not sure if this is by design or someone has tried something to achieve.

Another thing is the TDA7294 was badly treated with its legs cut and it had a crack too, so I have replaced it...

[Nash1405]

Have you found the issue? I might also have a very similar issue with A2338, the battery charging sign comes up then the Apple logo comes up for 2-3 sec and shuts back down. can't able to find the issue. I am getting good readings all over the board. A little help would be nice. Thanks!...

[danito]

boardview...

[abajor]

I'm investigating the above mentioned Yoga 7. There's something causing it to loop in the power up phase. I can hear a ticking noise before my USB Digital Multi-meter resets.

I'm guessing it's a power mosfet? I'll update if I find anything, but if anybody experience, knowledge or info about this unit, it will be much appreciated. Thanks.

[dimondimonich]

Hi guys! We need a bios dump.
Model Legion 9000 PRO 8 (2023)
s/n PF4T63Y1
I downloaded the bios on the official Lenovo website
It is not possible to fill it with a programmer on a flash drive
In the original flash drive, the file weight is 2 MB.
Please help me)

[wolf88]

Hello, I need the IMAC A1419 schematic - 820-01134-A with boardview

[crosswinds]

Hello,

So, pulled a motherboard out from storage, was working when put away, wont post when I took it out of storage today.
Since it was working, and it looks to be essentially time that killed it I figured its a good idea to replace the caps before digging further.
Looks to be only good quality caps on this board, so might not be the issue. But it is closing in on 20 years now so, wont hurt i guess

Its a ASUS P5VDZ-MX board.

I would really appreciate some assistance on what the best replacement caps would be for these:

Panasonic(M)...

[ub6ib969]

Hi, unit will power on and displays the HP splash screen and gets stuck. Tried F10, ESC to get to the BIOS however the CAPS LOCK key flashes 5 long and 4 short. I have attached the information below if anyone can assist. Thanks in advance.

[B]Model[/B]
HP Pavilion - 15-cs0015nia
[B]Product[/B]
4XL67EA#BH5
[B]Serial[/B]
5CD83574CD
[B]Motherboard[/B]
DAG7BMB16E0 REV:EHi, unit will power on and displays the HP splash screen and gets stuck. Tried F10, ESC to get to the BIOS however the CAPS LOCK key flashes 5 long and 4 short. I have attached...

[stinger]

When I turn tv on, the backlights come on but there is no sound or picture. I have read that these tv's have problems with the panels going bad but the "no sound" has me questioning if the main board is bad. Is there a way to troubleshoot the main board to determine if that is the problem?

[Anas Ahmed (MicroMummy)]

BIOS for HP z210 Workstation.. Request Thank
serial motherboard : 614491-002 REC0G
PCCJE0GCY0U20A
[ATTACH=JSON]{"alt":"Click image for larger version Name:\tz3210.jpg Views:\t0 Size:\t168.4 KB ID:\t3254724","data-align":"none","data-attachmentid":"3254724","data-size":"custom","height":"368","title":"z3210.jpg","width":"495"}[/ATTACH]...

[reassor]

Hi.
I got dead one.
3VALW is just pulsing then goes down. i removed the jumper PJ402 and it suddenly stays up but PG pin on that IC is around 0.5v and droping.
There is no obvious shorts. Wierd thing is that on the other side of the PJ402 i have 1.4V from somwhere ...

Injecting 3.3v there draws 300mA and nothing is heating up.

the ic is SY8386BRHC_QFN16 (kinda uncommon here - so i do not have a spare to test it)

any ideas to check before i order a few of these?

[petehall347]

have been looking at earth leakage clamp meters and its like a minefield out there . i wondered if anyone here had bought one that actually works properly ?...

[mabinternet001]

Hi, I need help to identify the component with marking "9003 KAUCHB".

A bit of background...
I have an induction hotplate UNOLD Elegance Typ no. 58105 (with board CHK-A1.42S) which has a blown resistor.
I have also located the problem in the SOT23-6 component with the marking "9003 KAUCHB"; the pin 5 was disconnected from the IGBT emitter (ground) due to the high temperature and this caused the IGBT to be permanently ON.
I replaced the resistor and resoldered pin 5 of the SOT23-6 component to the IGBT, the hotplate worked for about a month and...

[AdrenalinTL]

Hi,

Very new to this. So pretty basic / silly question. Can this be the cause of a totally dead mobo? And, is it repairable if I bridge tracks etc?

Thanks

[zwect]

I recently got this laptop on a trade labeled for parts, when first testing it, the motherboard starts on, the power LED stays on while the gpu and cpu fans ramp up in different speeds, then it turns off after half a minute or so.
No flashes from the LED daughterboard that indicates battery and HDD, but the battery seems perfect and even charges if plugged (with it's LED on accordingly).
BIOS and EC were reflashed, did a clean ME already, no change in symptom but then i noticed 3 things while looking through the board:

PU5 (NB671LGQ-Z) was burnt in one of the pins, i swapped...

[lofton]

Hello, I was flashing the bios but now the machine does not come, the battery indicator turns orange when charge is plugged in. As soon as it plugged by charger or battery the power button and escape blinks once then fade out Sometime it blinks 3 timess . With the back case off i can see the fan spins a little then top, but once i press the button it spins a little then stop and repeat for a while until stops. I have attached the bios dump. I had read the chip next to the cmos battery (25q80jvsiq) then i realize that it wasn't the bios. as the bios is next the memory slot. By doing that could...

[StormCrow]

Hi folks
Got a 14-eb0013na here that won't boot - have attached original BIOS dump
Serial number: 5CD203HPS8

I wonder if anyone could sort this for me so I can re-flash?

Also interesting in learning how to do it myself, is it the ME region that needs clearing on the HP laptops?

Many thanks...

[chth96]

Hello.
I have 29inch LG CRT TV,And Yesterday,Whenever I connect AC power cord to power outlet without switch on, I heard a sound like white noise, And When I switched on this CRT TV, It sometime displayed correctly But usually It won't last more than 20 minute and The screen begin to dark and It finally did not display at all for hours..
Today,I dismantled its plastic case and discharged the biggest capacitor(400wv 470uf) which still holds 250 voltage,and I finally detached PCB from cathode-ray tube.
I measured ESR value of most of caps in PCB with MESR-100 and I found that KME(25v...

[vinzmt]

hi to all
i have this logic board with no back light, image is present.
unknow istory.

on q7707 pin 5 EDP_BKLT_EN found 3.3 v, pin 1 gnd damage, pin 2 BKLT_PLT_RST_L only 0.08v (but is 3.3 on r2088 pin 2)
remove q7707 and find this

any suggestions?
thanks...

[norbiszoke]

Hello,

We have this set here in our shop that is not ginving sign of life besides red light that is blinking one time after pressing the button and nothing more... After detaching the mainboard from the PSU (this set has separate board thank god?! or not...) the backlight comes on. After reattaching nothing besides red light.... Can anyone from the forum help me here? Thank you in advance. Here's a link with images of the mainboard and the memory IC's that are on it.


Regards, Norbert!...

[hasefroch]

Hello everyone, I got this notebook, mainboard SKITTL10-6050A273001-MB-A1

Saw the U6100 blown up, so didn't even try to power it up.
Sems that there is not a schematic or boardview of this one, so I attached some pictures (some look distorted; the ic looks like a qfn-16 3x3).
Maybe is the RT2790A; looks to me compatible but their product code is 3B= XX and mine is 38=
Hope someone knows this one.
Thanks in advance.

[sretchko]

[FONT=Arial]Hey fellow solder fume lovers, I have a Vintage Sony Receiver STR-4800 SD that has me stumped. [/FONT]
[FONT=Arial]The Balance Pot has to be set at about 30 degrees (11 o'clock) to the left for the output to be balanced (see photo). I'm using an oscope, sig gen 1kHz sine, 8 ohm dummy load).[/FONT]

[FONT=Arial]When output is balanced (11 o'clock left) both channels clip at about 19 vac / 45 watts RMS, Amp is rated at 35 watts so I know the amp modules are good. Square wave also looks good when turning bass & treble pots and is in phase. [/FONT]

[FONT=Arial]I...

[magistertc]

Kitchen Aid Superba KUDS series, installed 2001, similar/identical to Whirlpool -- live, but no Start and no response to button-press.

The reset sequence of pressing two buttons multiple times did not work, either. Cycled power, no go.
Power off, remove six screws (torx 7 heads) examine circuit board: Saw two 63V/100uf caps, two more 10V caps, all appeared normal. Mutiple color-coded wires to board,
got all disconnected, dismounted board from housing. ESR test showed that 63V caps had failed.
Jamicon 105 C TK series, 8D x 12. Replaced both with equivalent ...

[jimmy2022]

schematic required for lenovo 13acn5

yoga 7 series...

[fredyjbi]

please help friends x1 yoga 7th no display beep melody thank you...

[fredyjbi]

please help friends clean me bios x1 yoga 7th no display melody beep, thank you

[Ancient1]

Hi
I received such Laptop as junk. Opening it I saw a lot of whitish water residue , but no corrosion really ( few coils have small brown rust marks, no green copper ).
I cleaned all thoroughly and interestingly , its the Battery BMS board that has the real corrosion spots.. under the protective clear Goo !!

[U]I want to try and power up the laptop [/U]

Battery is swollen. But I don't want to buy a new battery right now , of course .

I started work on the BMS by zooming in on green spots . 2 VIAs are filled with rusted copper goo - who...

[s_henya]

Hi got this cute GPU,
PC is powering on, GPU is getting power ~40deg
Cmos speaker is beeping.
other cards working fine on this build
tested the card on 2 other builds- same beep
visual inspection didn’t reveal any issues or missing components.

any test points?...

[r3yv12]

Hello Guys, I would like to ask for help to anyone that has a Schematic and Boardview of Asus GX650PY, Basically I messed up when I was cleaning the fans and heatsink of the Laptop and made some drop of Liquid Metal in the Board. It cause a short, I already located the precise location of the short through measuring the resistance of all Inductors, the problem is that I cannot push through without knowing the schematic/board view of the Laptop. Also, I can inject a power through the Main Power Rail and see with a thermal camera the short because the short is also on the Main Power Rail, but I...

[spintop]

anyone has Asrock H310M-ITX/AC boardview and schematic ?
thanks in advance !...

[M4n0l0307]

Good afternoon friends, I need your help with Bios DAN14MB56A0 REV A (AIO HP 22-dd2014la (693D9LA) ROM SSID 86F0 Thank you very much....

[DoOm86]

TV philips 55'' no backlight (image ok).
I tested the backlight with my led tester from the unplugged connector cable and it lights up. I had voltages at the motherboard connector, but anyway I order a new psu. Same problem, same voltages. Disassembled the TV and checked every strip with my led tester, they all light up, same voltage for every pair of strip (they go two by two).
What am I missing?

And something else I don't understand. I checked and I have 3v Leds, 10 per strips. Why every pair of strip (so 20 Led) take about 32v when powered up with my led tester 🤔

[trepachka]

See attached image. It says "X322" on it. This is a follow-up to my previous posted topic. The issue is upon lid closing, the screen turns off. When lid is opened, the screen remains dark.

This component is positioned right on the edge of the motherboard and has like a cradle made inside the case. I am assuming this component is used as a lid close sensor.

Please, help me identify it. Thank you....

[mferna14]

Hi., I am working on this motherboard MB:marshmallow mb 15257-2n 448.07N06 . 002N ... The required voltages (3.3v, 5V) are ok but the pressing the ON/OFF button does not turn on the laptop. I just noticed that someone messed up with the BIOS. Anyway I was able to read the BIOS, uploaded it. Kindly if some can re-build the BIN files, Model Hp ENVY x360 15-aq100nx , Serial # 8CG710266V, thanks in advance....

[Tjaytony]

I have acer c733 series chromebook with enterprise lock.

model; C733-C962

SN; NXH8WAA00303812EFE7611

Board serial no; ZAK DA0ZAKMB6JO REV J

i have tried RC Unlocker which some times works for, but it didnt work for this chromebook. Could anyone help me unlock it. thanks....

[guizmo1967]

Hello,

My Asus monitor stop working today !! I found the problem on the main board, the power supply board is ok. It's Q9, a mosfet but I have no idea what are the specs since I don't have the schematic for that monitor !!

Can someone help me identified this mosfet ?

Thank you !

[rascao]

HI i have a MSI [B]Katana GF66 11UC-045XES[/B], when i get it was turning on only for 1 seg and then off no display nothing, i download the bios from the MSI webpage and flash it with he SPI flasher, now on pressing the power button it turn on and stay on but no IMAGE, what i see when i create another dump from the new bios flashed i get a error on ME analyzer says "Warning: Data in Engine/Graphics region padding, possible data corruption!" after try to boot the laptop with the new bios clean downloaded from MSI, i try to clean the ME region but no luck i dont know how to doit on this...

[mikkele86]

Hello Im renovation a Luxman R-5045

On the attached picture there is a cap 0.047uF (47nF) and a resistor, 10ohm. What is their purpose ? and what would happend if I were to replace the caps with lets say, 10nF or 100nF ?
because thats what i got in stock :/

[ATTACH=JSON]{"data-align":"none","data-size":"custom","height":"566","title":"0,047 uF.jpg","width":"829","data-attachmentid":3253926}[/ATTACH]Hello Im renovation a Luxman R-5045

On the...

[dd10]

Hi, I need bios XFX RX-470P85 VC.0 hynix memory (red fan version). Bios found on TechPowerUp are for other versions (black fan) and displays error code 43

[wolba123]

Hello, I need the circuit diagram and the Boardview view.
The exact designation is as follows: Stradale CMLH 18835-1
C31KJSJA
Can anyone help me with this?

[Ross Kohler]

Hi,

I'm learning about motherboard repair and I believe I've traced the issue down for the South Bridge on the particular motherboard I'm working on. My path of concluding that:
- There's no sign of any attempt to power on when pushing the power button.
- No PSON signal is reaching the 24-pin ATX connector.
- The Super IO chip is receiving the PS_SWITCH signal from the power button and is relaying this signal back to the South Bridge.
- The Super IO is not receiving the S_SLPS#_R signal back from the South Bridge
- If I pull the Super IO S_SLPS#_R pin...

[startrek]

Hi I'm looking for working bios and ec for HP ProBook 455 G9, motherboard [I]DAX9SFMB8A0 REV:A[/I]Hi I'm looking for working bios and ec for HP ProBook 455 G9, motherboard [I]DAX9SFMB8A0 REV:A[/I]Hi I'm looking for working bios and ec for HP ProBook 455 G9, motherboard [I]DAX9SFMB8A0 REV:A[/I]

[fredyjbi]

Please help friends, thinkpad t480 nm-b501 is dead, help me fix it, thank you
usb meter 20v 0.00 amp, after I took the VSYS measurement the drop was only `9.2v which should have been 10.2v I measured from a normal matherboard machine, the VSYS path resistance to ground diode mode is 1900 thank you

[B]LINK to Schematic[/B] -> [url]https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-laptops-tablets-and-mobile-devices/schematic-requests-only/77167-required-t480-nm-b501-schematic[/url]Please help friends, thinkpad t480 nm-b501...

[digitelos]

Hello everyone!

I have a HP 14-dv0058nf;
S/N. 5CD1290M9P

Motherboard: DA0G7GMB8F0 REV.F

The laptop turns on and the power light also turns on. I think the problem is the BIOS

Can anyone get the correct bios so I can test?
Old Bios attached

Thanks!...

[monitron]

I am working on a HP Pavilion 27-d0010nd that has dark screen. It appears that the backlight is not working.
Now i discovered that the backlight circuit is on the scalar board and has a burnt mosfet. (caused by a ceramic capacitor short).

If anybody can help me identify the partnumber it would be a very great help.

The board number is:

L76838-001
L99794-001
BigBen Scalar board.



[URL=filedata/fetch?id=3253797&d=1713275701][ATTACH=JSON]{"alt":"Click image for larger version Name:\tuhd-scalar-board-aio-hp-27.jpg...