Re: Lg 50pz560t
Post a pic of your control board, it's in the middle of the set.
Post a pic of your control board, it's in the middle of the set.
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Re: Lg 50pz560t
Check if there is a R5 & R52 copper holes.Comment
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Re: Lg 50pz560t
Hi thanks for your reply this is photo of my board.Attached FilesComment
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Re: Lg 50pz560t
The two copper holes are in red circle.
They are R51 and R52.Attached FilesComment
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Re: Lg 50pz560t
Thank you for that I will set jumpers up tomorrow and post out come.Comment
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Re: Lg 50pz560t
Tv goes red green blue white whole of the screen , black line on a white screen right to left ,black line bottom to top then white line on black screen left to right and top to bottom then black screen and repeats it againLast edited by Ally18; 02-01-2018, 11:11 AM.Comment
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Re: Lg 50pz560t
I've fixed tv it now works. It was main board and I resolved processor.Comment
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Re: Lg 50pz560t
Should say resoldered processorComment
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Re: Lg 50pz560t
Good job. Keep an eye out for a broken screen tv so you can grab the mainboard incase this one fails again.Comment
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Re: Lg 50pz560t
"Should say resoldered processor"
Can you share some details on how you did this?Comment
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Re: Lg 50pz560t
I used a solder station. Remember Xbox red rings if death or sonys yellow rings of death ? I got to thinking that this problem was ( let's call it ) LG black screen of death. The exactly same problem as playstations and Xboxs problem. Processor leaves contact with the board. To explain it simple use hot air to slowly heat the board up to melting solder just a little.hopefully reconnecting processor back to the board. I have fixed many xboxs and playstations this way and none ever had the same problem again. Just a warning very easy to melt something that shouldn't be melted or damage the board be on repair so use as last resort ��Comment
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This specification for the Acer Swift Acer Swift 3 SF314-42 14 inch Laptop - (AMD Ryzen 5 4500U, 8GB, 512GB SSD, Full HD Display, Windows 10, Purple) Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the Acer Swift 3 SF314-42 14 inch Laptop - (AMD Ryzen 5 4500U, 8GB, 512GB SSD, Full HD Display, Windows 10, Purple) boardview and Acer Swift 3 SF314-42 14 inch Laptop - (AMD Ryzen 5 4500U, 8GB, 512GB SSD, Full HD Display, Windows 10, Purple) schematic. Our users have donated over 1 million...09-07-2024, 12:40 AM
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Hello guys,
I have a Philips 240B7QPJEB. The monitor seems completely dead.
I opened it and measured the voltages of the powersupply. I found that a mosfet was dead and replaced it.
On the connector, that goes to the TCON board, all voltages 15-19V and 5V are present.
The small connector on the left of the PSU has two cables with 18V and all the other have 0.2V. It connects on this small connector on the left ontop of the panel. I guess the backlight? Seens fine I guess.
The weird thing is, that the Power LED is powered over the TCON board.
On The TCON...12-28-2024, 02:12 PM -
Hello, this might be embarassing since I consider it a dumb question but keeps me kinda stuck sometimes in my journey.
I want to know if there is any post in this forum which explains my questions. A) When, where and how do I know when X voltage line is input or output. Example:
I'm battling with this IC to understand it's voltages. It's from non-turning-on Lenovo Ideapad 3 15iil05 - NM-D461.
I see some lines like +5VL / +5VALW / V9B+ / +3VALW being okay and some others like 1.8VALW / +0.6VS / +2.5V_DDR. I just know that some of them are bad or missing,... -
I've got an MSI Z390-A Pro motherboard that starts up fine, but it's missing the VCORE (and VGT) voltages. All of the other voltages are present (e.g. VCCSA, VCCIO) and I know the CPU (i7-9700k) is good. Now, the original PWM controller (UP9521P) had an internal short and I replaced it with a new one. All of the enable signals look good. The problem seems to be the PWM signals going to the MOSFET drivers. I checked them with an oscilloscope and they are all flat 1.5V with no pulses. I don't know why this would be and I'm not sure where to look next. -
Motherboard after starting show Q code 00.
No shorts on any rail ( at last I can't finde any)
All voltage are correct on SIO - 3.3V, PCH power 1V , DDR 1.2V, SPI 8 leg 3.3V
Nothing get hot, PSU starting, all lights came ON....
One thing i can see incorrect is no VCCIO and VCCSA voltages and no main power on CPU.
After deep looking I found dead Synchronous Buck converter CSD97374Q4M that is powering VCCIO for CPU but after replacing it nothing changed. Voltages on it are correct....
This buck converter is PWM'ed by Asus DigiVRM ASP1405I-62T. Can't finde any datasheet...
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