Question about Samsung Televison & Video
Samsung LED TV model number: UN65JS9500FXZA Was watching TV, heard a pop, then the image went out. No backlights, but image shows up with flashlight test. I do have audio. (So I suspect TCON and main board are good) After opening the back panel, I can isolate a steady and moderate clicking noise to the power supply board. All capacitors appear intact. No burn marks on the front or back of the power supply board or LED driver board. I believe I need to replace either the power supply board or the LED driver board. Due to the clicking noise, I believe I should begin with the power supply board. Would you agree? Thanks for any advice!
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Posted on Jan 02, 2017
Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. http://electronicshelponline.blogspot.com/ In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.
Posted on Nov 13, 2016
Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis. http://electro-medical.blogspot.com/
To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.
Posted on Jan 02, 2017
SOURCE: LG 47LN5750 No picture
If you have backlights its not going to be the tcon for future reference. you have some shorted or open LEDs in the panel. Check the voltage going to the LED sets, should be 100 plus volts
Posted on Nov 16, 2017
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