I need help in identifying a diode so i can start looking as to where i could get one. I have LG 60PV250-UB that the YSUS board is giving me issues of powering on. Right now I need to replace D428 on the YSUS board. Not sure which number to go by so I'm going to list them both. Its EBR73561201 or EAX64232001. If anyone has the schematics and repair manuals to this tv i would greatly appreciate if you would share them with me. The Tv does the power on then back off. I unplugged the YSUS board and the power stays up. I found some other bad stuff on this board and im hoping this time i got everything replaced but this diode i need to find. Thanks again in advance for any advice and or input
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Hello from France,
mon2 kindly advised me to post a thread to ask the question(s) I'm concerned about. I'm new to the forum and I'm looking for practical courses for troubleshooting pc motherboards especially laptops in Europe, if possible in France. I have been a computer network system administrator and a corrector of administration modules for automated programs under Unix. But I really miss the practical "ops" side of troubleshooting. So I would like to start from the beginning: 1.8V, 3.3V, 5V and 19V tests for example, etc...
Do you think this is feasible for me? I... -
Hi all, I have a EBR73561201 Ysus board on a LG 60PV400 that clicks off after 2 seconds when powered up. I am 99% sure the problem is the YSUS board because when I power up the TV with it disconnected the tv stays on and I have tested the buffers and when the buffers are disconnected and the YSUS is powered the TV shuts down. I did replace a couple of FGPF4633 transistors that were shorted and tested all gate resistors but it still will shut down once I hook up the ribbon cable from the control board. I retested the transistors I replaced and tested the gate resistors and they seem fine. Anyone... -
Greetings all!
Originally this set had the usual messed up video symptoms such as: horizontal lines, weak, grainy video, bottom and top of picture differ in intensity of problem. It also seemed to slow to turn on or show the messed up picture.
Seemed like must be YScan/buffer board failure. Ordered buffer boards from my distributor which were supposed to be original/new and also from another distributor, I ordered the YSUS because I wanted to replace it for preventative maintenance. (also, the YSUS had a bulged cap, so there was even more reason to suspect it could... -
Hello all,
I’ve tried to repair TVs in the past with some luck. Toms repair manuals got taken down and now thats a bit harder.
I picked this TV up hoping for a quick fix. When the TV would power on, only the backlights would come on. The owner told me they heard loud screeching before it shut off. This alone makes me want to think the main board has an issue.
As I researched, I found the TCON/driver boards were an issue on this unit. I went in troubleshooting the TCON but found good voltages on the TCON. I followed shop jimmys guide to test the transistors and they seem okay.... -
The issue with this video card is the HDMI port. Specifically on pin 19 (Diode checks on all other pins are normal). When i do a diode check on it from the pin on the board itself, I have nothing. There is also no short on the pin. Resistance reads about 200k. Normally on any HDMI pin 19 I would expect some voltage drop anywhere from .5v to 1.2v but here, I have nothing. The card is operational and can be used via the displayPort ports, but not through the HDMI. Attached you will find the pdf schematics for the card on page 22. I have verified that all of the resistors on this line before the...07-25-2024, 09:49 AM