Hi Ramdatt Sookchan, I could have a problem with the LCD panel, try disconnecting one of the Flex tapes from the T-Con board to the LCD panel and see if half of the image appears, do the test by disconnecting one and then reconnecting and removing the other
If a screen appears in any of the tests, the problem is in the LCD panel
Try and comment
Greetings Franco Dosil
Hola Ramdatt Sookchan, podria tener un problema en el panel LCD, prueba desconectar una de las cintas Flex de la placa T-Con al panel LCD y f?jate si te aparece la mitad de la imagen, haz la prueba desconectando una y despues reconectando y sacando la otra
Si en alguna de las pruebas te aparece media pantalla, el problema esta en el panel LCD
Prueba y comenta
Saludos Franco Dosil
Testimonial: "yea I tried that and no luck, still a blank screen...thanks for your help though."
SOURCE: sound but no video HPT5054 Samsung
One of your transformers on the inverter board are failing to sustain regulated power to the florescent lamps resulting in a dark picture. Also check the SMD fuses on the inverter board(s) see if they have blown. You will need a continuity meter to check them. You can get one from radio shack and be sure to get one with audible sound....you don't have to replace boards when you can fix them.
SOURCE: Samsung Model HLR4667WAX/XAA is making a buzzing sound
This TV is horrible. I have the same one and not even a year replaced the light bulb twice. Very disappointing for a Samsung.
SOURCE: Power Supply Board for SAMSUNG 40" LCD TV Model LA40R81BX
You'll find some Samsung power supply boards here : http://www.usefulparts.com/index.php?main_page=index&manufacturers_id=11&sort=20a&filter_id=98&alpha_filter_id=0
but you have to open your TV first and find out model number
SOURCE: Mastercool evaporative cooler unit.
check this web site for spareparts of your evaporative cooler
http://www.indoorcomfortsupply.com/Evaporative-Cooler-Parts.htm
let me know!l
SOURCE: Samsung TV goes Black but keeps sound
you will need to check weather the 24vdc supply for the inverter board is good no drop voltage. if no supply check the power supply board. then you should check if their is a inv_on signal at the power inverter board around 3v-4.4vdc . if goes out during power on tried to disconnect the supply going to the inverter board to ensure if their is a shorted parts in the inverter board. if the inverter_on signal also goes out even with out inverter board connected that was mean you have problem in the processor board.
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