Hi,
i've got for repair Lenovo L340-15IRH fg541/fg741 nm-c362 rev 1.0, laptop have instant short 20v 0.20amp draw, lv5083a goes to 100degree, i've removed 1 shorted cap next to the IC and short still remain, from look of it short comes from legs 16-25, i can't find what this IC i believe is 3/5V regulator?
First mosfets normal 20v Source and drain and Gate 25v...
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-
Yesterday, 11:43 AM
-
Hello,
Does anyone have the schematics for the backlight circuitry for the M15R5 Ryzen edition?
mainboard model: LA-K453Pā
Your help is very much appreciatedYesterday, 07:59 PM -
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 !04-16-2024, 01:15 PM -
Hi,
First I am french sorry for my english.
I bought this LG OLED 65C6V sold because when we press the power button I can hear the click of power board relay, the red light blinks one time then returns red.
The seller said he try to replaces the 3 cards (power + motherboard + t-con) but still the same issue (but the cards were not buyed at then same seller).
I test power suply in standalone (bridges between 3v5 and PWR_ON, 3v5 and DRV_ON, 3.5V and 12v_ON and I have all stable voltages (3v5, 12VM, 24VS, 12V t-con, 24V t-con.
So I...Today, 01:17 AM -
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),...04-18-2024, 02:42 AM -
Hi. I could not find a more related and active thread for Alienware 15 R1. Currently have BIOS password locked so cannot modify and save changes. Service tag: 3V69L32, Express Service Code: 8415323390. Please help me. Thank you for your time and effort!04-29-2024, 06:27 AM
-
Hello, My head unit developed strange behaviors so I ran the built-in diagnostic package which returned "No EEProm". The service manual says there is no EEProm connected. I approached Pioneer and they said to swap out the DSP board. All said and good but the DSP board is $860 USD. I am hoping someone can help me
1). Understand the schematic and check the connections between the EEProm and DSP
2). Check the functionality of the EEProm
I don't know if this is the unit's problem but it's a place to start.
I have little to no electronic experience...04-08-2024, 05:32 PM -
Having this very weird issue.
The owner of this laptop complained about screen being intermittent when opening and closing, and has been using the laptop on a thunderbolt video connection since the screen failed.
I swapped with a working screen from an A2141 waiting for parts.
The Os exhibits this weird behavior where it boots to to 1/3 the status bar, then it makes the boop sound. It's at the log in but for whatever reason the desktop isn't loaded.
The laptop boots fine into recovery mode. I updated from Monterey to Sonoma and the laptop still has...04-27-2024, 01:37 PM -
Has anyone discovered if the M2 LCD works with the M3 board on the 16" I believe these are the same LCD? I know the M1 and M2 work on the 16" but does the 16" M3 LCD work with M2 LCD or M1? Curious if anyone has tried this yet?Yesterday, 10:52 AM
-
Hello š I have a tv with these red lines. I've tried cleaning and re-seating the ribbon cables but no luck! Tried all 4 on the LJ92-01485 board and on the bottom of the panel. Do you guys think it's the board?|
[Edit] I don't know why the thumbnails aren't linking to the full images, but here is the gallery. [url]https://postimg.cc/gallery/WZcFzyf[/url]
[URL=https://postimg.cc/bZhnsDWs][/URL]
[URL=https://postimg.cc/BjBKDZfN][/URL]https://Hello š I have a tv with the...Tried all 4 on...Yesterday, 04:22 PM
-
can anyone help me remove panasonic CF-LV8SDDZTF
model CF-LV8SDDZTF
serial 2HKCC48561
borad number DHLB1434ZC/X1
ā...Yesterday, 06:02 PM -
Hi,
First I am french sorry for my english.
I bought this LG OLED 65C6V sold because when we press the power button I can hear the click of power board relay, the red light blinks one time then returns red.
The seller said he try to replaces the 3 cards (power + motherboard + t-con) but still the same issue (but the cards were not buyed at then same seller).
I test power suply in standalone (bridges between 3v5 and PWR_ON, 3v5 and DRV_ON, 3.5V and 12v_ON and I have all stable voltages (3v5, 12VM, 24VS, 12V t-con, 24V t-con.
So I...Today, 01:17 AM -
Hello,
I've been working on this laptop for a few hours and I am stumped. Still learning this kind of troubleshooting. Hoping someone can help.
[U][B]Computer Information:[/B][/U]
Model: Lenovo IdeaPad Gaming 3 15ARH7
Motherboard model: NM-E211 Rev: 1.0
Schematic, Boardview, & FlexBV Free - Attached
[U][B]Problem:[/B][/U]
The computer does not charge the battery or power on also does not power on with power adapter only. Battery have no charge on it at all (reading mV on battery charge). When connecting the power adapter...04-29-2024, 01:27 PM -
Hi,
i've got for repair Lenovo L340-15IRH fg541/fg741 nm-c362 rev 1.0, laptop have instant short 20v 0.20amp draw, lv5083a goes to 100degree, i've removed 1 shorted cap next to the IC and short still remain, from look of it short comes from legs 16-25, i can't find what this IC i believe is 3/5V regulator?
First mosfets normal 20v Source and drain and Gate 25v...Yesterday, 11:43 AM -
Hello,
Does anyone have the schematics for the backlight circuitry for the M15R5 Ryzen edition?
mainboard model: LA-K453Pā
Your help is very much appreciatedYesterday, 07:59 PM -
Hello š I have a tv with these red lines. I've tried cleaning and re-seating the ribbon cables but no luck! Tried all 4 on the LJ92-01485 board and on the bottom of the panel. Do you guys think it's the board?|
[Edit] I don't know why the thumbnails aren't linking to the full images, but here is the gallery. [url]https://postimg.cc/gallery/WZcFzyf[/url]
[URL=https://postimg.cc/bZhnsDWs][/URL]
[URL=https://postimg.cc/BjBKDZfN][/URL]https://Hello š I have a tv with the...Tried all 4 on...Yesterday, 04:22 PM -
Looking to up my game a little bit, but these programmers seem a bit daunting.
Trying to get a device for EMMC repair, and it's very difficult to lookup all the words to find if I'm on the right track lol.
Trying to reprogram EMMC on Sony/Hisense mainly but would like to hit a few other brands.
My question is would either of these work? And is there a specific card reader I need for TV emmc? There is like 10-40 additional pieces that I can get but not sure what I actually need for my application only.
I may do eeprom as well. Can someone point...04-21-2024, 08:18 AM -
Hello,
I have an HP 14-dq0055dx laptop here that came in for boot looping. It was previously taken to another shop and they tried flashing a BIOS firmware to the chip, so I cannot take an original dump. For a second or two, a message will come up on the screen that says:
This loop will go on for as long as you like. I let it run for about 12 hours and came in the following morning and it's still looping.
Motherboard model number: DA0PAMB46A1 REV: A
Secondary motherboard model number: 0PAB
SKU: 685K4UA
Attached is the latest...Yesterday, 09:11 AM -
Hey folks, I have this iPad Pro 12,9" 4Gen A2232 here with no charging issue. The main fault was a crossed pins / faulty USB charging port due a bad cable.
So I started to replace this parts:
- replaced usb-c port -> no result
- replaced battery -> no result
- replaced usb-c chip CD3217B12A -> no result
- replaced 343S00326 -> no result
- replaced 343S00327 -> no result
- replaced 343S00328 -> no result
I have no more ideas for this issue. There is no short on the whole board, and the iPad is working fine...Yesterday, 05:37 AM -