I tried to reseat everything, rams and video card but still nothing works. OK two long and two short is a 13v line failure pointing to a power supply problem. I tried the reset vol-, input. I have a sharp aquos, 42" tv. When the set is plugged into AC power the P.S. the center power icon is blinking, two long, two short. Trying to find out what this pattern means? turns on has 400vdc on filter caps. PLEASE HELP. This sticker may be on either the right or left side, depending on the model; but is normally located in the lower half of the back of the TV. Search. note: The following codes can vary depending on BIOS version. Twitter; Facebook; Connect. Go to Solution. I don't think so. Generally, it may be put only between digit characters. If the switch is open for longer than 3 minutes, the code will change to #1-3. The problem is, RoundI(1.275, 0.01) returns 1.27, rather than 1.28. If I unplug the TV and replug it in I get the 1 long 1 short flash on the sharp logo and must do the reset to power it on TV Technician: Anthony_Infotech , Technician replied 3 years ago OK its bad LEDs these backlight the panel now its a task to do this work see here <