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.
Toshiba 42HL196 LCD: Three blinking light problem
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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.Attached FilesComment
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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 newsPlease 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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