Any help with
Lenovo ThinkPad L13 Gen 1
Serial: R9117ESC
EC: 256KB
Plz remove password.
Thank you....
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Screwed onto the board. Thoughts?
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Latest Topics
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by appie1206Hello there friends
Can someone Clear this bios file for me ?
serialnumber: 5CG33778XV
productid: 709Z1AV
Thanks in advance...-
Channel: BIOS Requests ONLY!
05-07-2024, 05:03 AM -
-
by GraphicManHello guys
Because the unit is old (but only occasionally used) the loudness button causes some noise due to bad contact,
sprays did not work, so i decided to solder the pins that it connects on the pcb at the on (loudness on) position
i did that and it worked fine, i know from the bottom of my heart that the switch connects 2 pins and also d/c other 2 pins
on every position it have (6 pin switch), so i was curious what would happen if i clicked the switch off while the pins are soldered at on (so basiclly on and off at the same time), when i did so the sound is gone, nothing...-
Channel: Troubleshooting Audio Equipment
05-05-2024, 06:20 AM -
-
by unimatrix93Can I ask you guys help me identify this godforsaken component?
I'm tearing my hair out finding this component.
The board is from an egg incubator.
i got it with a "popped cap" while there are many damaged components on it, which got succesfully identified with one exception:
[ATTACH=JSON]{"data-align":"none","data-size":"medium","data-attachmentid":3267072}[/ATTACH]
And here is the board where it came from (U1/1):
[ATTACH=JSON]{"data-align":"none","data-size":"medium","data-attachmentid":3267073}[/ATTACH]...Yesterday, 08:21 AM -
by gjgibHello, this might be embarassing since I consider it a dumb question but keeps me kinda stuck sometimes in my journey.
I want to know if there is any post in this forum which explains my questions. [B]A)[/B] [B]When, where and how do I know when X voltage line is input or output. Example: [/B]
[URL=filedata/fetch?id=3266119&d=1715040463][ATTACH=JSON]{"alt":"Click image for larger version Name:\timage.png Views:\t0 Size:\t151.9 KB ID:\t3266119","data-align":"none","data-attachmentid":"3266119","data-size":"thumb"}[/ATTACH][/URL]...05-06-2024, 08:11 PM -
by thriftysonI recently purchased a used MSI GS66 with password locked bios.
If I'm understanding correctly, I can fix this by re-flashing the bios. Except I need a copy of the original bios because the updates don't have complete information.
Maybe I need to download my existing image and copy information (something something DMI) from there to the newest BIOS update downloaded from MSI?
Or maybe I'm supposed to request for the original, if any has it unlocked can they send it to me?
I'm tried following different threads here, but its confusing because MSI...-
Channel: BIOS Requests ONLY!
04-30-2024, 06:58 AM -
-
Hola, estoy buscando el Boardview ASUS TUF GAMING B450-PLUS II R1.01, ser
-
Channel: BIOS & Schematic Requests!
Today, 04:25 PM -
-
by learnmoreHi Community,
I've got the above model that activates the relay (clicks) and powers on the LG logo power light on when turned on. It then almost immediately turns off. I not noticed any image on the screen or heard any sound during this brief period.
Checks show:
3.5v on SMPS on (in off state, no other voltages present incl pwr on)
On pressing power button > the 3.5 pwn on voltage, 12v and 24v lines appear on the SMPS connnector between the main the SMPS but then all drop the zero in 1-2 seconds
Disconnecting 24 to TCON connector and powering on shows...Yesterday, 02:42 PM -
by RofixHello everyone, I kindly wanted to ask you for advice, on this PC as soon as I connect the power cable without doing anything the part where the CPU, GPU is heated up, with the bench power supply it absorbs 600 mA, without battery, kindly since I'm here various coils almost short what can we start doing? thanks for any advice
[ATTACH=JSON]{"data-align":"none","data-size":"full","title":"Asus 1.jpg","data-attachmentid":3268046}[/ATTACH]Hello everyone, I kindly wanted to ask you for advice, on this PC as soon...Today, 03:06 PM -
by jm1234Hi, I'm seeing one 9V relay having temperature 40C on its 9V (primary) side. Does that seem right? I switched 2 relays on that board and the temperature was the same (on the same position), so I'm sure it's not a faulty relay. I measured voltage on that relay and it was 9.5V DC, so that looks good. I don't see any other relay on that board having that kind of temperature and they have 9V on them too.
I thought maybe the transistor that is switching this relay keeps switching on/off, so I also checked for AC and there was almost none: 0.3V using mV range. No steady frequency was shown, but...Today, 03:03 AM
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by ResoluteHawkI have an Asus G14 (GA401QM) that has a power issue. Originally the board had a shorted 5V rail and dead EC. I reballed a working EC, soldered it on, and I resolved the 5V issue by replacing the APL6012 and the low side 5V mosfet. Resistances on all power rails are healthy now, but 20V does not make it through the first MOSFET. 20V is present on the drain of the first MOSFET, but there is no voltage on the gate or source.
When diagnosing this issue, I thought that the issue was due to the BQ24800 chip not outputting the correct signals so I soldered on a known working chip and the...Yesterday, 01:30 PM -
by ub6ib969Hi,
working on a ASUS ROG STRIX GL702VSK 60NB0DZ0-MB1260 that does not power on. At the PQ8900 PIN2 (P_CHG_ACMOS_G_20) I am receiving 24.7V and PIN1 (P_CHG_ACMOS_S_20) 20V, however when I place the PQ8901 P_CHG_ACMOS_G_20 it drops 0V. I don't have the replacement mosfets ( N-MOSFET QM3058M6AC PRPAK5*6
UBIQ) however will any N-channel mosfet with similar parameters work ? I also found that PCI8703, PCI8701 are shorted. any help would be grateful.05-07-2024, 04:34 PM -
by ShocK-306HDiHi friend, I've this notebook HP Gaming 16-a0006nl with QUANTA DAG3JBMB8D0 that won't power on.
I start checking first mosfet and they seems to be ok.
On power button I get 3 that go to 0 on pressing, and come to 3v on release.
After I check charge ic that is BQ738H
I write here measure with battery and ac
19
19
19
25
3
1.9
0
3.1
3.1
1
11
11
11
gnd
0
6
10
11
11
19
I've 0 on pin 7 IOUT and on pin 15 LODRV.
...Yesterday, 07:09 AM -
by RofixHello everyone, I kindly wanted to ask you for advice, on this PC as soon as I connect the power cable without doing anything the part where the CPU, GPU is heated up, with the bench power supply it absorbs 600 mA, without battery, kindly since I'm here various coils almost short what can we start doing? thanks for any advice
[ATTACH=JSON]{"data-align":"none","data-size":"full","title":"Asus 1.jpg","data-attachmentid":3268046}[/ATTACH]Hello everyone, I kindly wanted to ask you for advice, on this PC as soon...Today, 03:06 PM -
by PITERPENYHi all ! I really need help with my motherboard! consumption 20V / 0.060-0.280 A is unstable! not detected in DFU! There is no picture on either the external or internal monitor!
PPBUS_G3H=12,61v
PPBUS_HS_CPU=12.61v
PPDCIN_G3H=19.94v
PP5V_G3S=5.12v
PP5V_S5_LDO=5.12v
PP3V3_G3H_RTC=3.3v
PP3V3_G3H=3.3v
PP3V3_G3SSW_SNS=[B][COLOR=#c0392b]2.3-2.6v[/COLOR][/B] is unstable!
PP3V3_G3S=3.3v
PP3V3_TBT_X_S0=[B][COLOR=#d35400]0v[/COLOR][/B]
PP2V7_NAND=2.513v
PP1V8_G3S=1.8v
PPVCC_S0_CPU=[B][COLOR=#d35400]0v
[/COLOR][/B...Today, 11:56 AM -
by GraphicManHello guys
Because the unit is old (but only occasionally used) the loudness button causes some noise due to bad contact,
sprays did not work, so i decided to solder the pins that it connects on the pcb at the on (loudness on) position
i did that and it worked fine, i know from the bottom of my heart that the switch connects 2 pins and also d/c other 2 pins
on every position it have (6 pin switch), so i was curious what would happen if i clicked the switch off while the pins are soldered at on (so basiclly on and off at the same time), when i did so the sound is gone, nothing...-
Channel: Troubleshooting Audio Equipment
05-05-2024, 06:20 AM -
-
Hola, estoy buscando el Boardview ASUS TUF GAMING B450-PLUS II R1.01, ser
-
Channel: BIOS & Schematic Requests!
Today, 04:25 PM -
-
by unimatrix93Dear 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...05-03-2024, 03:18 AM -
by tec3000Hi community! Germany calling I am wondering if you guys can help me out. I have an issue with my Sony LED TV. I've been told this is a good place to ask. Thanks for anyone who will reply and offer advice. Appreciated!
I have a KD-65X9005A Sony 4k LED TV. For a few weeks I've got this problem where I turn on the TV and within a few seconds the TV starts getting darker until it shuts itself off and I get the 4 blinking error code. HOWEVER there is one exception: Whenever I switch to the i-Manual, a full screen on-screen instruction manual, the TV never turns off. I tested for hours!...03-20-2024, 07:29 AM -
by mist79I am still new to this, so I might sound brainless/ignorant in parts of my description/questions, since I have a lot of gaps in my knowledge, but I will do my best.
The laptop is Lenovo Legion Y540-15IRH, and the motherboard model is NM-C221 Rev 2.0 (Schematics and BoardView can be easily found). To save time I have the exact problem in the laptop as the one shown in this video:
[url]https://www.youtube.com/watch?v=tfucZ_WKpz4[/url]
I was checking the voltages I found that the main power rail V20B+ is good, and same for the +3VALW circut, but when I tried the +5VALW,...Yesterday, 10:52 AM