I bought this TV brand new in 2000. It worked with no problem for eight years until a few weeks ago. Now when you press the Power Switch (button) to turn on the set, all you hear is a thumping sound (like a heart beat) through the speaker, and no picture comes on. At first, I thought it was the circuit board connected to the power switch that was broken. So I ordered a new circuit board. I connected it, and it did not solve the problem. The thumping noise still occurs, and still no picture. Please help! What could the problem be?
Paul
This may be a "ISL9860" chip on your T-con board - I saw a nice youtube video by norcal715 you can do a web search for "norcal715 samsung" & a few from him will pop up. The one I watched was at https://www.youtube.com/watch?v=l2jzLn5QEos
You might contact him through his youtube video.
good-luck.
Oops, he was fixing a Samsung LED TV in a quick search I could not find anything he did with a Toshiba TV.
This may be a "ISL9860" chip on your T-con board - I saw a nice youtube video by norcal715 you can do a web search for "norcal715 samsung" & a few from him will pop up. The one I watched was at https://www.youtube.com/watch?v=l2jzLn5Q...
You might contact him through his youtube video.
good-luck.
Oops, he was fixing a Samsung LED TV in a quick search I could not find anything he did with a Toshiba TV.
I also found a repair kit but not for your problem:http://www.tvrepairkits.com/xcart/tw40x8... but perhaps they know of your problem and have a fix.
×
SOURCE: Toshiba tz50v51 popping sound
Possible problems: * The TV set may be unplugged. * A fuse or circuit breaker may be blown or switched off. * The remote control unit (RCU) may be disabled. Solutions: * Make sure the TV/VCR are plugged in and the wall switch is on. * Check the fuse or circuit breaker. Test the outlet with a lamp. * Replace the RCU's batteries: if this fails exchange the unit.
SOURCE: No sound or picture
Keith, Check fuses Then Resoder The COMPLETE board I bet there is heat related problem W/Old Soder Just a Hunch!!!!!!!! G'Luck Chance One 559 @ Yahoo . Com
SOURCE: Flashing power button
Hello, please check the vertical output IC and convergence IC's (STK392-110). Best regards, Arpi
SOURCE: TOSHIBA 40H80 projection TV - no sound / no picture
it could be, that would be the first thing i would do to rule out I would first check for loose connections on the board.
SOURCE: tz61v61 toshiba 61 rptv theaterview
If the relay clicks you most likely have a leaky diode or bad transistor in the stand by or start up circuit. There is a manual available for that model called. Toshiba Power Supply and Shutdown circuit Troubleshooter. Its available at the following link. It gives step by step instructions so you can figure out exactly whats wrong with your set. The site emails it too you after you place your order and they also provide free unlimited tech support so you will have a resource for help if you need it. I am one of their on line support techs. I highly reccomend that Manual to any one with a toshiba that will not power up. Here is the link.
http://servicemanuals.vstore.ca/
1,035 views
Usually answered in minutes!
Hi Julien134, I want to help you with your question, but I need more information from you. Can you please add details in the comment box?
×