I picked this discarded tv from a neighbor. They said it powered up but nothing on the screen. LEDs would come on but no startup chime. I replaced the TCON, and then when I plugged in, the red light would blink, but LEDs would stay off. I unplugged the main board from the power supply then plugged back in. Leds came on and stayed on. Then I replaced the main board. Now, I'm stuck in a boot loop where the startup chime sounds, but the leds never come on. Tv has been in my garage sitting, and we've had a few cold nights around freezing. I've also tried warming up all the boards with a heat gun with same results. The voltage between the main board and power supply was around 5.5 when it would cycle, at both the power supply and the mains board at the connector cable. I can't see any bad caps (no swelling or visible leaking). Any ideas??? Much appreciated!
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Samsung UN60FH6003FXZA
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Re: Samsung UN60FH6003FXZA
I tried disconnecting the cables to the led driver one at a time. No change. So I put the original boards back in. I had no sound on startup. So I replaced the main board with the new one, kept the original tcon board in. Now I have sound, leds still come on, but no picture. When I disconnect the lvds to the tcon, there are no changes with either the old board or new. I’m wondering if I have a short in my lvds cable???
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Re: Samsung UN60FH6003FXZA
I already disconnected them one at a time. No change. I found a trouble shooting guide for this tv, and it pointed to the lvds cable as well. I tested the fuse on the tcon, and got no voltage. The trouble shooting guide pointed to either the main board as the problem or the lvds cable. I just replaced the main board with a new one, so I’m replacing the lvds cable. I’m an aircraft mechanic, and have some electrical training and experience.
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Re: Samsung UN60FH6003FXZA
don't waste time and money buying a cable, check if there is voltage on the mainboard before the cable, if you watch its pins, at a side there are 4 or 5 pins connected together, those are the +12v, put the meter red on them and the black on a ground plane or the screw, which voltage do you have?
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Re: Samsung UN60FH6003FXZA
What is your tcon part number? One part has a common failure BN95-00628A BN95-00628B BN95-00628C. https://ebay.us/QYesjf
https://www.shopjimmy.com/samsung-bn...628c-see-note/Last edited by neilc6; 12-05-2020, 12:51 PM.
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Re: Samsung UN60FH6003FXZA
If you come here searching for help and you don't follow other one's advices i say you this is really annoying, i notice this behaviour more an more frequently on the forums...
For your information powering on theese devices at less than zero degrees is not a good idea, have you ever checked a device's manual?
Plugging a cable more times and having different results can only lead to a faulty cable, since ussually those connectors are very strong. Yoy must be much heavy to destroy them.
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Re: Samsung UN60FH6003FXZA
Let me just state the current symptoms. The tv is stuck in a boot loop with no leds on. If I it leave on l, still looping, and disconnect the lvds cable, the leds turn on, but no picture. When I re-plug the lvds cable, tv works perfect for 20 seconds then starts to flicker, but continues to function. If I turn it off, then on, it’s stuck in the boot loop again.
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