When i switch back from HDMI to any Air channel, after a few seconds, image is returned back to normal. Is this case of T-Con or Main Board? Thanks!
If it shows horizontal lines, in most of the case is a defective display panel.
If the TV receives air signal is OK, the problem is the main board.
Testimonial: "Thanks for the response. But i´m not sure it´s the display panel, as if i disconnected any HDMI, the TV goes back to normal. If i use only TV Air channels, it works well."
SOURCE: SAMSUNG LCD TV horizontal lines
causing of horizontal lines is leaky or defective capacitors. check big value capacitors around the board at Horizontal area. check the filter capacitor as well. good luck
SOURCE: LCD TV SCREEN PROBLEM RED HORIZONTAL LINES OF DOTS ALL OVER SCREEN PLEASE HELP
This should be repairable. It may be the LVDS Cable or the Main board problem. The only other problem is the T-Con Board.
SOURCE: 2 horizontal blue lines on samsung 50 plasma tv
Possibly could be the Y buffers --if the are next to each other could be a bad connection on a ribbon cable ---you need to call for service
SOURCE: I have Samsung UN55B7100 LCD
Tech from Craigslist? Does he know if the repalcement T-CON (more likely to be used board) is good? T-CON: E40951307-TCON Troubleshooting 10-22-09_OPT http://www.scribd.com/doc/25276757/E40951307-TCON-Troubleshooting-10-22-09-OPT
Learn more on how to tell if it is the T-CON or LCD panel is causing the problem.
http://www.mediafire.com/?zzjygannjty PDF download.
Did he also check the DC output voltages feeding the T-CON board?
Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors pictures: http://s807.photobucket.com/albums/yy352/budm
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.
Or www.digikey.com, just make sure to use caps with low ESR, 105c, high ripple current and long life rating such as PANASONIC FM or FC series
ry accessing the recovery menu 'safe
mode' 1st.
Press and hold the power button until
the systems shuts off. (wait 2 seconds)
Press and hold the power button again
until you here 3 beeps. Let go.
If you have a HDMI cable, plug it up,
if you have AV plug it in as well. If you have both settings on your
TV, be sure to have them both inserted into the system. Also, make
sure that you are switching your TV from HDMI to AV and vice versa.
It should ask you to connect your
controller via usb and press the PS button in
the middle of your controller. There
will be a menu with 6 options. Try 2-5.
If you still are getting the horizontal lines, chanes are it's your laser/lens.
This is the 2nd most common problem
with PS3's. This isn't a bad problem. Your laser/lens will need to be
replaced. There are many videos on youtube if you would like to do it
yourself (I would advise you not to). I recommend that you find a
technician who has experience. There are many things that can go
wrong.
Try resetting the entire video/audio settings to default. The blur on the picture may indicate that your motherboard is going bad. Recently there was a customer who had the same problem. It was his board. When we tried the AV cables, the blur went away. We tried different HDMI cables and the blur was still there when using HDMI output. It wasn't the TV, and it wasn't the HDMI cables. It was the board going bad.
Try accessing the recovery menu 'safe
mode'.
Press and hold the power button until
the systems shuts off. (wait 2 seconds)
Press and hold the power button again
until you here 3 beeps. Let go.
It should ask you to connect your
controller via usb and press the PS button in
the middle of your controller. There will be a menu with 6 options. Try 2-5.
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