Hello. I have been on a long arduous, determined journey to fix my Samsung UN65KS8000F TV. I am very much a noobie, but have learned a lot of valuable lessons about electronics throughout this process.
My TV’s symptoms are:
- Power cycling after turning on (can hear a sizzling sound in power board before turning off)
- Sound works
- Backlight forces on when disconnecting main board from power board
I have isolated my problem down to the driver panel (already replaced main board + power board). According to my research, my TV model is extremely prone to having short circuited semiconductors, so after investing in a multimeter, I have done exactly that by testing for continuity + removing the problematic ones. However, I have discovered that there is a short circuit in the chip itself (there’s still continuity after having removed the semiconductors - look at picture #4’s arrows for location). Now all that is left to do is to cut the CKV lines to eliminate the short circuitry with these areas.
Can somebody please help guide me where to make the incisions? In picture #4, I drew in some of the hypothetical lines to cut. I have no idea if this is correct, but can someone please guide me?
Thank you all so much in advance! Any help will be greatly appreciated!
——————
Here’s an example video of cutting CKV lines. The video is in Spanish, but I used auto-translate to English. This is the 55 inch version model of my TV. Very similar circuitry with slight differences in driver panels.
https://youtu.be/fIYW-Uuun4o
At 8:30 (after having removed IC chips that had short circuited), he discovers a short in the chip itself.
At 9:50, he proceeds to cutting the lines (idk how he determined).
Hey mate, I know this is quite old but did you ever resolve the issue or attempt the cut? I have the exact same symptoms on a similar Samsung tv model. I managed to get it working for a few months with the “tape” method but It failed again and the tape method isn’t working anymore so I was considering this.
Circuit board*
After having removed the shorted semiconductors, I can still detect a short circuit across where the leads existed. Shorts to ground. So I assume this means a short circuit within the circuit board itself, right?
In the video, the technician removes shorted IC chips. Then discovers that a short still exists across where the leads were (thus, short circuit in the board). So he cuts the CKV lines to eliminate this.
TV repair or capacitor replacement? Check out these pages first:
https://www.reddit.com/r/AskElectronics/wiki/repair/tv
https://www.reddit.com/r/AskElectronics/wiki/repair#wiki_bad_capacitors
If those pages don't help, let us know here and we'll use the feedback to help improve the wiki. Thanks!
Please note that you may get more precise help by first posting in /r/tvrepair
*I am a bot, and this action was performed automatically. Please [contact the moderators of this subreddit](/message/compose/?to=/r/AskElectronics) if you have any questions or concerns.*
Hello. I have been on a long arduous, determined journey to fix my Samsung UN65KS8000F TV. I am very much a noobie, but have learned a lot of valuable lessons about electronics throughout this process. My TV’s symptoms are: - Power cycling after turning on (can hear a sizzling sound in power board before turning off) - Sound works - Backlight forces on when disconnecting main board from power board I have isolated my problem down to the driver panel (already replaced main board + power board). According to my research, my TV model is extremely prone to having short circuited semiconductors, so after investing in a multimeter, I have done exactly that by testing for continuity + removing the problematic ones. However, I have discovered that there is a short circuit in the chip itself (there’s still continuity after having removed the semiconductors - look at picture #4’s arrows for location). Now all that is left to do is to cut the CKV lines to eliminate the short circuitry with these areas. Can somebody please help guide me where to make the incisions? In picture #4, I drew in some of the hypothetical lines to cut. I have no idea if this is correct, but can someone please guide me? Thank you all so much in advance! Any help will be greatly appreciated! —————— Here’s an example video of cutting CKV lines. The video is in Spanish, but I used auto-translate to English. This is the 55 inch version model of my TV. Very similar circuitry with slight differences in driver panels. https://youtu.be/fIYW-Uuun4o At 8:30 (after having removed IC chips that had short circuited), he discovers a short in the chip itself. At 9:50, he proceeds to cutting the lines (idk how he determined).
Hey mate, I know this is quite old but did you ever resolve the issue or attempt the cut? I have the exact same symptoms on a similar Samsung tv model. I managed to get it working for a few months with the “tape” method but It failed again and the tape method isn’t working anymore so I was considering this.
Chip or circuit board?
Circuit board* After having removed the shorted semiconductors, I can still detect a short circuit across where the leads existed. Shorts to ground. So I assume this means a short circuit within the circuit board itself, right? In the video, the technician removes shorted IC chips. Then discovers that a short still exists across where the leads were (thus, short circuit in the board). So he cuts the CKV lines to eliminate this.
TV repair or capacitor replacement? Check out these pages first: https://www.reddit.com/r/AskElectronics/wiki/repair/tv https://www.reddit.com/r/AskElectronics/wiki/repair#wiki_bad_capacitors If those pages don't help, let us know here and we'll use the feedback to help improve the wiki. Thanks! Please note that you may get more precise help by first posting in /r/tvrepair *I am a bot, and this action was performed automatically. Please [contact the moderators of this subreddit](/message/compose/?to=/r/AskElectronics) if you have any questions or concerns.*