Re: Lg flatron w2252tq-pf
hey Rtech,
found the v.r, check for shorts, looks good,
how do you suggest checking voltages, with screen connected /disconnected?
by the way could it be the flat cable that goes from the vga board to the tcon board?
thank you,
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Re: Lg flatron w2252tq-pf
It looks as though you may have qty 2 regulators on the Logic board.One looks as though it may be hidden under the Blue resistor on the left of the first photo,and the second in the bottom left hand corner.You need to advise the Part codes on them,and measure the voltages on them.
Looking at them with the 'Tab' at the top, I thing the three pins from the left are Ground, Voltage out and Voltage in.If you wish you can use the metal on the VGA input Socket as the earth point.The voltages out ,maybe, approx 3,3volts and 1.8 volts,but advising the Part codes or yourself using the Alldatasheet.com site,should let you determine what they should be.The centre pin on each device is usually connected to the Tab.Leave a comment:
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Re: Lg flatron w2252tq-pf
hey, Scenic thanks for the advice,
i had a 19" lg screen with a power supply problem,
connected it and still scrambled picture,
any suggestions on repairing the board?
ebay link for buying a new one?
you said something about voltage regulators testing,
i need you to be a little more specific, never repaired a logic board before...Leave a comment:
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Re: Lg flatron w2252tq-pf
My first guess would be testing the linear voltage regulators on the controller board to see if the output is in spec.
If you have any other 20-22" LCD monitor with 1680x1050 resolution (like this one has), you could hook its panel up to this controller board to determine if it's a panel/t-con fault or the controller board itself without having to buy a replacement t-con first.Leave a comment:
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Lg flatron w2252tq-pf
Hey guys,
got this monitor today,
it's working but the picture is all scrambled,
checked connections looks good,
im gussing the problem is in the logic board or the tcon board,
anyone know this problem?Attached Files -
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Hi There,
This TV was auto switching off after few seconds with some vertical lines on the screen, so got a new TCON board and replaced it.
After replacing the TCON board it was working fine and i set it up with everything, used for few hours, then had the bright idea to update the software on it. During the update process, TV switched off and now no audio or video. No relay switch sound.
More Details
TV Model - LG OLED77G1PUA
Got the same exact TCON board from TVPartsToday and replaced it. But didnt transfer the EPPROM data (didnt... -
Vizio e601i-A3 - Has Sound and Display, But No Backlight - Bad Power Supply Board or Bad LED Bulbs ?I was given this TV from my great uncle. He said it just wouldn't turn on one day out of nowhere, replaced the TV, and gave it to me to possibly fix and use for myself.
Upon bringing it home and plugging it up, it showed a standby light.
I powered it on and without a flashlight, the display showed the "V" but the lighting is very dim, but visible.
The screen seems to blackout and stay black, but with a flashlight I can see the display.
With my Playstation 4 connected via HDMI, and running a game I can hear sound.
Assuming... -
This thread is about trying to get an Universal Main Board to work with a Sharp TCON and panel.
I have a Sharp LC-46D85UN TV that has had a main board issue. Since this model is from 2009, I am not able to find an exact replacement of the main board. Instead, I decided to see if I can future proof this tv by getting a Universal Main Board (T53U21.2) from China to work with the Sharp TCON (CPWBX4291TPZA) and panel. The universal main board supports a 8 bit dual channel LVDS interface whereas the TCON requires a 10 bit dual channel LVDS input. I have modded the LVDS connector to match... -
Hi, this is my personal laptop, which the original board (lets call it Board A) blew up PU8700 (TPS51486), making a hole on the board, i had left the laptop at my desk one day with the battery fully charged and didn't touch it for a week, but when i tried to turn it on it didn't
Thought the battery was dead, so i plugged in the charger then tried to power on, the power LED blinked once, charged LED still orange, unplugged the charger, plugged in again and I noticed the "magic smoke" smell, so i unplugged the charger, removed the back cover and saw the blown IC (the "magic... -
I hope this is the right forum to post in despite not technically being a repair, but still a question of swapping boards.
I thought I'd explore the possibility to upgrade an existing working Samsung ue55nu7096u with the logic board (and power board if needed) of a newer model (ue55ru7105k) of the same size and appearance (and resolution). The reason being I'd like the extra inputs of that board including component in, an extra HDMI port and bluetooth. Its panel is broken so I have no use for the board otherwise.
The models launched in 2018 and 2019 respectively....
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