Trying to determine a fault, not sure if the culprit is LM2574 pin 7 output is grounded

[repair-it]

I'm not sure if this is correct, the output pin 7 is grounded or the ic has a short. I'm just trying to rule it out. https://www.ti.com/product/LM2574?qgpn=lm2574

[Coguar]

I’m asking if someone who has a DSO-TC4 Fnirsi component tester could upload the contents of its internal memory for me, since mine arrived with a corrupted USB memory and a factory reset or firmware upgrade doesn’t help. Also, the device makes a strange clicking noise when it’s turned off but still connected to USB. Thanks in advance — anyone interested can check out the link bellow.

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[oism]

looking for service manual yamaha musiccast 50 wx-051

[oism]

Looking for service manual for yamaha subwoofer ns-nsw100

[koby058]

Hi

While trying to replace intersil 9241H, i have knocked out some component (maybe a capacitor) that was connected to pin 29
board model: DAZJ2SMBAF0 Rev: F

attached the best picture i found (marked on the second pic)

9241 DataSheet: https://www.farnell.com/datasheets/2710985.pdf...

[Xohaib]

Hello everyone,

I’m looking for a full 8MB BIOS dump (.bin) for the Linx 1020 tablet with the Intel Atom x5-Z8350 processor. My device is currently not powering on, and I believe the BIOS might be corrupted. I plan to reflash it using a CH341A programmer and SOIC8 clip.

If anyone has a working Linx 1020 and could share a verified full dump from the SPI BIOS chip (usually Winbond 25Q64 or similar), I’d really appreciate it. A clean dump from a known working unit would help restore my board safely.

If the dump is from a Z8300 variant, please note it —...

[ianbak]

Hi,

I have a Dell Latitude 7290 that power cycles instead of turning on. The circuit board is an LA-F311P

I have systematically checked pretty much every internal voltage, and they all seem to be present except for CPU Vcc_Core, which doesn't turn on.
The impedence the Vcc_Core coils is 8.3 Ohms, though, which seems reasonable.
Vcc_SA does get enabled, and reads 1.05V. This is driven by the same power controller IC as Vcc_Core, so I am assuming that that is good.
There is no Vcc_GT, but I have read that that can be normal as it only turns on when GPU...

[smallvhin]

Master help to fix my bios stock in "bios is updating" I already update my bios to first release and latest but no luck.
more thanks
bios file
ec file...

[repair-it]

I tried to locate online without any success but maybe someone else might have better luck. If it is a double diode - it's done - based on the reading I got in diode mode....

[numuni1]

Hi! is their any way to remove supervisor lock on this bios?
Auto patcher wont work?
or is their a default bin file on this?
thank you for answer...

Lenovo THinkpad e14 gen 4
Board: JE443/JE543 NM-E501
Model: 21ECS17C00
S/N: PF46PAJ8...