Has anyone worked on one of these? All caps test good in/out of cct. PSU is working normally. All it does is flash the blue power LED. No specific pattern. I am thinking the upro is bad on the video board. (Runs warmer than normal, but not smoking hot). There is no splash screen, or OSD whatsoever. There is no difference if the VGA cable is connected or not.The inverter is functional when 5 Volts is applied to the "turn on" line. Help? Anyone?
-
-
Re: Lg W2234s
Has anyone repaired one of these The PSU has been tested and working normally. All it does is flash the blue power LED. There is no display on screen it is the same if the VGA cable is connected or not. The service manual can be found here http://linfotech.co.uk/schematics/LG/LG_list.asp -
Re: Lg W2234s
1. A flashing power LED can also be caused by a corrupted EEPROM on the signal card. Some monitors can be reset by holding down a combination of switches when turning on the monitor.
2. A common symptom of a shorted inverter driver transistor is a flashing power LED.
3. In some cases bad capacitors will cause a flashing power LED.
PlainBillFor a number of reasons, both health and personal, I will no longer be active on this board. Any PMs asking for assistance will be ignored.
Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic.Comment
-
Re: Lg W2234s
I know the fault is on the signal card. I have tryed the PSU / Inverter in a working monitor.Comment
-
Re: Lg W2234s
I recently had to buy a replacement on Ebay....@£34...Comment
-
Re: Lg W2234s
Has any one tryed a replacement: LG W2234S 8 pin IC chip board SMD 25L1005AMC 1M memory. http://cgi.ebay.co.uk/ws/eBayISAPI.d...=STRK:MEWAX:ITComment
-
Re: Lg W2234s
To add one more cause to the list causing a blinking PLED,
One of the traces on the flat ribbon cable going to the LCD panel had come loose from the ribbon, although I did not test to know exactly what was happening, I suspect it was 5V line finding a ground.
Anyway if the blinking PLED stops when the cable to the panel is disconnected from the logic board, and you gain control of the front PLED it gives an area to look atWhatever I do, I consider it a success, if in the end I am breathing, seeing, feeling and hearing!
Comment
-
As the Elitebooks (820, 840 all gens) only show flashing Power LED and flashing CapsLock (continuously) + a very soft "ticking" noise near the DC Jack,
I wonder if re-flashing the BIOS might be of any use here.
As far as I understood, steady flashing either means insufficient power or a CPU/GPU/Motherboard issue. I use the original 65watt power supply.
There are so many threads out there, but most of the solutions involve flashing codes, which I dont have or claim that you MUST use the original power supply, do a hard reset, reseat the RAM, clean the RAM,... -
Hello Community!
CASE DETAILS
Promblem Signs: Backlight on 1 sec off 7sec > repeat && Red standby light: 1blink, off 3 sec, 2 blinks, off 5 secs, 2 blinks, off 3 sec, restart cycle
13V present on powerboard output. Backlight continues flashing after removing cables to pannel one at a time and even with both disconnected. NOTE: backlight STOPs flashing and remains on when connector between powerboard and mainboard (note Tcon built in) is disconnected.
Tried inserting firmware on USB and left it in for a few hours, but no change
... -
Recently I've gotten into EC flashing due to my broken laptop(s) and started frantically searching methods for flashing the IT5571E-128 chip on the cheap(due to me beaing a student and not having a job) and noticed that ITE newer chips can be flashed via ISP (In-System Programming) either via SMBus or the KBC (EPP - Enhanced Parallel Port) interface. While these can be achieved with programmers like SVOD4/3 or the RT809H/F those options are WAYYY out of my budget so I was horrified. But recently I stumbled uppon some programmers on aliexpress that claim they can program a variety of ITE chips...06-17-2025, 07:17 AM
-
Hello,
YouTube video of the problem encountered: https://youtube.com/shorts/q7TLNv36LUo
I am a pro and I have a problem that I have never seen despite my 7.5 years of experience on my own and my thousands of repairs, on a customer's Dell G3 15 3500.
On this PC I have already changed the complete palmrest because the keyboard was no longer working properly.
I also changed the screen because the PC fell and the screen was broken.
I changed the battery with a new and original battery.
I also had corrosion/oxidation on the... -
Have a Pioneer VSX-1021 that goes to MCACC flashing as soon as it is plugged in.
If I enter release mode, it powers on, the screen display is correct, but then it shuts down and goes back to MCACC after a few seconds. I can shut it down to standby (w/o flashing MCACC if I hit the power button as soon as release mode finishes the boot sequence).
Entering reset mode and executing a reset doesn't change this.
I am unable to enter service mode to see the error counts - Enter + Power button doesn't do anything, whether from normal standby or from MCACC flashing....
Comment