Rookie here, I tried using the search function to locate similar problems to my tv and couldn't find any, so I apologize in advance if this topic has been discussed already.
My Samsung LCD TV (model# LN46A540P2F, bought 11/2008) is having problems when turned on after being off for 1hr or longer (problem doesn't happen when the tv is warm or has been on for a while). The TV constantly reboots and the picture has green vertical lines and loud screeching static noise, after 5-6 automatic reboots the picture/audio quality is fine. I have visually checked the capacitors on the psu and they are not bulging or leaking (see photo), I just replaced the t-con module last night with a new one and that didn't solve the problem. I also just replaced the cable box and that didn't fix the problem (samsung cs recommendation). After some basic trouble shooting I have found a pattern:
1) If I turn the tv on and cable box on (same time) after both being off for 1 hr or more, I get the problems.
2) If I turn the tv on (turns on right away, even after being off for awhile) and leave the cable box off for 2-3 minutes (TV says searching for signal), then turn the cable box on I don't get any problems. So it appears that once the TV is warmed up, I don't get any problems. Could it be bad capacitors? Even though they are not leaking or bulging? Maybe they work better once warmed up????? What about the power inverter, could that be the problem?
3) I also tried using the HDMI port on the side of the tv this morning and my TV couldn't find the HDMI signal, weird I thought so I just plugged it back in the rear HDMI port (where is always has been). Maybe the side port is bad and back feeding the problems?
Any help would be appreciated.
My Samsung LCD TV (model# LN46A540P2F, bought 11/2008) is having problems when turned on after being off for 1hr or longer (problem doesn't happen when the tv is warm or has been on for a while). The TV constantly reboots and the picture has green vertical lines and loud screeching static noise, after 5-6 automatic reboots the picture/audio quality is fine. I have visually checked the capacitors on the psu and they are not bulging or leaking (see photo), I just replaced the t-con module last night with a new one and that didn't solve the problem. I also just replaced the cable box and that didn't fix the problem (samsung cs recommendation). After some basic trouble shooting I have found a pattern:
1) If I turn the tv on and cable box on (same time) after both being off for 1 hr or more, I get the problems.
2) If I turn the tv on (turns on right away, even after being off for awhile) and leave the cable box off for 2-3 minutes (TV says searching for signal), then turn the cable box on I don't get any problems. So it appears that once the TV is warmed up, I don't get any problems. Could it be bad capacitors? Even though they are not leaking or bulging? Maybe they work better once warmed up????? What about the power inverter, could that be the problem?
3) I also tried using the HDMI port on the side of the tv this morning and my TV couldn't find the HDMI signal, weird I thought so I just plugged it back in the rear HDMI port (where is always has been). Maybe the side port is bad and back feeding the problems?
Any help would be appreciated.
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