Title says it all. The red indicator light is on, but there is no picture or sound. I have no clue what is wrong with it. Even with the remote or trying to turn it on from the glass panel, nothing happens, Doesanyone have a clue as to what is going on. And the tv was given to me so I dont know if there is a warrenty on it or not
If the indicator light is on but you get no pic/sound then you have a bad power supply on the unit. Since you are not sure of the warranty status your best bet is to call samsung (or get online with them) and they can check the warranty of it for you. If it is under a warranty they will set you up and if it is not then (depending on if you like the tv or not) you can contact a service center in your area and the repair is a pretty basic fix that shouldn't cost you an arm and a leg.
SOURCE: Samsung LN-R408D - No Picture
My Mom's LNR408D also had sound but no picture. I was able to fix it by soldering in a jumper wire across a blown (1.5A ???) SMD picofuse on the "T-Con" board.
Consider attempting this ONLY if you:
0) Know enough to avoid the potentially fatal High Voltage parts of the power supply board!!!
1) Are a fearless hackazoid
2) know what you're doing with a soldering iron and teensie SMD parts
3) are gonna throw the busted thing out anyway so you have nothing to lose and won't be sad if you screw something up.
4) Know enough to avoid the potentially FATAL High Voltage parts of the power supply board!!!!!
This board is at the top center under a close fitting RF shield. The suspect part was labeled "CP" on the board and marked with "P" on the part. It is visible above the right-center of the connector from the main board. An ohmmeter showed it as open, so I bypassed it with a jumper wire from connector VIN to the hot side of C13. One image shows the suspect part and the jumper in place.
The other shows the TCON board placement top-center (under its RF shield). With care, it seems possible to test the fuse and put the jumper in place without removing the shield. (Obviously don't touch anything else with the VOM leads!)
Thanks to ZORBUS and Steve's TV and Electronics for the idea.
http://www.avforums.com/forums/lcd-televisions/892447-no-picture-but-got-sound-my-samsung-lcd.html
http://www.gesda.com/transformer/Fall08_files/Page336.htm
Steve C
SOURCE: My tv won't turn on, the red light just blinks and
power suppy needs replacing...according to samsung and other forums i read when mine did this its a common problem
SOURCE: Hi, My SAMSUNG LE40R88BDX/XEU LCD 40
It sounds like the power supply board has some bad capacitors that need to be replaced. Samsung is covering the cost to repair this problem on some models. You can call 1-800-samsung to find out if your unit is covered.
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