I'm looking for some assistance troubleshooting the power supply board. I've done research and already replaced the most common components suggested by others for the TV not turning on with three blinking lights. After replacing Q820, Q860 and Q880, the TV was making a clicking noise and would not power on. Then, after replacing C888-C890 and D884A, the clicking noise returned when pushing the power button. So I'm back to three lights blinking and no powering up. I have the factory repair manual for reference and can give meter readings if someone can assist me in testing some components and/or any other suggestions. Thanks.
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Re: Toshiba 42HL196 LCD: Three blinking light problem
Can you post the service manual? Does it have the diagram of the power supply board?Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809 -
Re: Toshiba 42HL196 LCD: Three blinking light problem
Im sorry for slow response i didnt know I had any replies. Yes I am posting service manual now.Comment
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Re: Toshiba 42HL196 LCD: Three blinking light problem
42HL196,TOSHIBA OEM 23135072 Integrated Circuit (IC), STRW6765 replace this,will work again.Comment
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Re: Toshiba 42HL196 LCD: Three blinking light problem
Sac D - welcome to the forum - please update the thread with the result - hope its good news
Please upload pictures using attachment function when ask for help on the repair
http://www.badcaps.net/forum/showthread.php?t=39740Comment
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Hello, I am trying to bring back to life my Toshiba 55U7863DG, which has never been the most reliable device - keep on annoying me with its slowness and some random start-up/shutdown issues requiring to unplug the AC. But yesterday it finally said goodbye and decided to not turn on again. Green light is blinking, I've seen this behaviour before and thought that these are some temporary whims again, but unfortunately not this time.
I have checked that my TV is build based on the 17MB130S board, which seems to be quite popular and easy to buy as a used one. Still I would like to ask... -
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Please check the attached rar file for video
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Hi, just need a bit of advice please
I have a Toshiba 40L3453DB tv with the blinking red/green light and the light grey screen but no picture or sound
there are no swollen caps as far as i can see
I have searched the forum and found this thread for the smaller size tv
https://www.badcaps.net/forum/showthread.php?t=58640
which recommends redoing the firmware, so i have searched and the only firmware i can find is this one
h**ps://repairalltv.com/toshiba-40l3453db-software-17mb95-download/
the 17MB95 board is the same as mine but the... -
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