Hitachi 50HYT62U, has backlights but no picture, just completely blank screen, any ideas anyone??
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Hitachi 50HYT62U no picture
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Re: Hitachi 50HYT62U no picture
What do you get on the screen if you only have one ribbon cable between LCD panel and the T-CON connected one at a time?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
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Re: Hitachi 50HYT62U no picture
Originally posted by budm View PostWhat do you get on the screen if you only have one ribbon cable between LCD panel and the T-CON connected one at a time?
If I unplug the right ribbon, I get the attached pic
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Re: Hitachi 50HYT62U no picture
The LCD panel has integrated T-CON board and also located at the bottom edge of the LCD panel which is easily damaged by the cleaning liquid, so inspect the T-CON/Tab bonding board for damages and also check the caps resistance as suggested.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
Comment
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Re: Hitachi 50HYT62U no picture
Originally posted by nomoresonys View PostGuess you could test your caps on the driver board for shorts or very low ohms.
Originally posted by budm View PostThe LCD panel has integrated T-CON board and also located at the bottom edge of the LCD panel which is easily damaged by the cleaning liquid, so inspect the T-CON/Tab bonding board for damages and also check the caps resistance as suggested.
Doesnt appear to be any damage to anything. Which baord is the driver board??
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Re: Hitachi 50HYT62U no picture
"Doesnt appear to be any damage to anything. Which board is the driver board??"
So you remove the LCD frame to get to the T-CON/Tab bonding boards?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
Comment
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Re: Hitachi 50HYT62U no picture
Show us the pictures of the boards that are connected to the LCD panel..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
Comment
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Re: Hitachi 50HYT62U no picture
There are many caps on those boards, you have done them before in other threads, did you not?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
Comment
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