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Hi all,
This repair is very challenging. I already made my way to the problem. Please read the complete post before commenting. I need the help from good gurus.
The power button on the TV set is working, the same for the power button on the remote control. When activated the power LED changes from red to white and the power supply relay clicks. But no image appears, and no sound is heard.
I already investigated the problem. the Micom chip on the EBR73110104/EBT61520408 main board is the issue. The Micom is IC602 that use the μPD78F0514 (UPD78F0514)... -
Hi,
I'm repairing OPTI-495SLC 386 WB manboard: https://stason.org/TULARC/pc/motherb...LC-386-WB.html
It has some damage due to battery leak that I have cleared. I measured affected wire patches and they seems to be OK. The damaged part is shown on the attached picture.
The board often fails to POST when I turn the PSU on. Most often POST card gives AMI BIOS 12/13 error codes but no code or different codes are also shown sometimes.
When I reset the board while the PSU is running or if I switch it OFF/ON the...03-20-2023, 02:24 PM -
Hey there people
While working on my Acer Aspire with the OS failing to load, I encountered a motherboard number of DA0ZHQMB6E 0 REV: E. I was getting nowhere fast or slow, for that matter.
This is what I tried, but not in any order.
Google
YouTube
BIOS
Command Prompt (administrator privileges)
>
On Google AND YouTube, I was getting mixed messages, try this and try that, but when you cross reference the advice it is either the wrong model (even though you enter the correct search term) a YouTube case in point, with the search term "how to...10-25-2025, 02:22 AM -
Dear all,
For a friend I'm trying to repair an Acer Swift 3 laptop (SF314-42). I'm not a professional, but have some experience (both as amateur and professional) in working with electronic design and repair of musical instruments.
The issue with the Acer laptop is the following:
It was bought new and used (not heavily) at home for about three years. After normal use, it was put to sleep, connected to charger and left over night (just like any other day). The next morning, the laptop would not wake up from sleep. Instead, when pressing the power button, the power... -
Hello,
I have an old MASTER TL-240 LED TV. Since it stopped working and it had a DVB-T receiver that is being dismissed in Italy, I've decided to replace the mainboard with a DVB-T2 one.
The original problem was that when switching on the TV, the power LED was transitioning from red to steady blue, without showing video or audio.
After checking some voltages on the power supply board (HKL-240101-B Rev. 1.4, HKL from now on) someone suggested me to replace the mainboard.
Now I have some doubts about how to connect the new mainboard to the old power supply.
First of...
Working...
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