hi
need bios for toshiba portege r30-a part no pt343u borad number FASRSY1 A3688A
the old bios stat but no data...
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05-07-2024, 02:05 PM
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The Problem: This player has a toggle switch to select between Stereo, Mono R, and Mono L. Regardless of the setting it outputs the sound to both the L&R audio jacks. In the Mono R position, the audio output level is normal (from both the L and R audio output jacks), in the Stereo position the audio output is about half the volume, and in Mono L, it's about 3/4 the volume. Something about putting it into Stereo mode is causing the volume to drop significantly and I can't figure it out.
The player processes the audio signal using two different reference frequencies. The "R"...04-30-2024, 11:22 AM -
does anybody have Schematic and board view [B]Mac Mini 2018 model A1993 MLB 820-00939-A - does not boot, [/B]does anybody have Schematic and board view [B]Mac Mini 2018 model A1993 MLB 820-00939-A - does not boot, [/B]Today, 10:06 AM
-
Hi,
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 -
Hey guys looking for the Bios for an Asus ROG G713PV-DS94
Motherboard Number is g713p-mb-VGT 6050A3468901-MB-A01
Serial Number is R3NRKD03613412E
i am not sure if any additonal information is needed if so let me know and i can update this post. Things i have tried are to download the BIOS directly from Asus but that file is a .329 file and is 32MB as opposed to the 16MB file i need. Scoured high and low and cant find this darn BIOS anywhere! Much appreciated!!...Yesterday, 02:29 PM -
[U]Hardware Details - Samsung LC24FG70FQWXXL (C24FG70) Monitor with the board model (BN91-18169A) perhaps aka (BN41-02548A)[/U]
While wall mounting, I mistakenly picked a screw 0.5cm too big than the clearance and damaged the trace and one of the part (a capacitor, I think) on the board. Images attached.
Is this repairable or will I just have to get the entire board replaced? Please guide about this.[U]Hardware Details - Samsung LC24FG70FQWXXL (C24FG70) Monitor with the board model (BN91-18169A) perhaps aka (BN41-02548A)[/U]
While wall mounting, I mistakenlyYesterday, 06:40 AM -
Hello there friends
Can someone Clear this bios file for me ?
serialnumber: 5CG33778XV
productid: 709Z1AV
Thanks in advance...05-07-2024, 05:03 AM -
-
I 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 -
Device: Laptop
Manufacture: Huawei
Model: NDZ-WFH9A
Motherboard: DAH98UMB8D0 REV D HF
Issue: Please help me and remove power on password
Attach my original bios.
Thanks in advance
[ATTACH]n3267210[/ATTACH] Device: Laptop
Manufacture: Huawei
Model: NDZ-WFH9A
Motherboard: DAH98UMB8D0 REV D HF
Issue: Please help me and remove power on password
Attach my original bios.
Thanks in advance
[ATTACH]n3267210[/ATTACH] ...Yesterday, 11:21 AM
-
I 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 -
Hi There
So I am looking for a part. Namely, a QqEEH. I beleive this is responsible to create the 3.3 power rail, but on my motherboard it is shorted to the ground. injecting 1 volt into the 20 volt power rail the IC heats up. Around the IC almost everything is shorted to the ground,
Anyone knows what this little controller chip supposed to be?
Thanks,...Today, 07:47 AM -
Hi 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 -
Hi,
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 -
Hi,
I'm currently experiencing issues with my Dell Inspiron 5415. Initially, the laptop would sometimes fail to boot, with the keyboard backlight turning on but no display on the screen. After repeated attempts to power it on and off, it would eventually boot up and function normally.
To troubleshoot, I removed both the main battery and the BIOS battery, but now the laptop exhibits a different issue: the fan runs at full speed, but the screen remains blank, and it doesn't boot up.
I suspect there might be a problem with the BIOS, and I would like assistance...Today, 05:13 AM -
does anybody have Schematic and board view [B]Mac Mini 2018 model A1993 MLB 820-00939-A - does not boot, [/B]does anybody have Schematic and board view [B]Mac Mini 2018 model A1993 MLB 820-00939-A - does not boot, [/B]Today, 10:06 AM
-
I bought one of [URL="https://www.aliexpress.com/item/1005002890887241.html"]these [/URL]as it was the only one I could find that is compact enough to fit in my toolbox (though I've since found [URL="https://www.aliexpress.com/item/32844169715.html"]KSGER make a substantially safer looking one[/URL]). It's one of those fan-in-handle things that has the 230V element in the handle. Quecoo briefly sold a [URL="https://www.aliexpress.com/item/1005004884759470.html"]similar unit [/URL]but discontinued it.. maybe they couldn't find solutions to these problems. I'm aware...Today, 09:09 AM
-
Does anyone have a schematic for an HP ProDesk 400 G6 SFF main board?
I have one that blinks RED 5 times, pause, WHITE 7 times and repeats. This sequence isn't covered in the service guide. The closest is a memory issue but the one SODIMM is known/tested GOOD in another box (same model).
There looks to be some resistors(?) missing near BIOS flash chip.Today, 09:01 AM -
Hello guys, i am working on a X512FF motherboard that comes dead, 19V stops on first mosfet, Gate only have 3v... if a make a bypass laptops works great with no problem... already tested the 5 mosfets, if i remove the current sensor PRS8901, the 19v appear...
Something with the 19V line and the charger detects and stop working !
Any advices ?...Today, 08:30 AM -
I 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