I had no power coming out of the power supply (BA17F8F0102) except for about 0.6V on one pin. The voltage would read 3.2V for a second then jump around until reaching 0.6V. I found a shorted transistor (K10A50D) at location Q600. I replaced it and still nothing. I then replaced some diodes and an IC using a repair kit. I still get the same voltage. The through holes for Zener diode (1ZB36) at location D610 show continuity. The Zener itself shows no short. The .18ohm resistor next to it also shows continuity. Apparently they are in parallel. I do not see shorts in any other components.
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No power LC-26SB24U
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Re: No power LC-26SB24U
Nothing to add to your diagnosis I'm afraid but:- Sharp are rebadging Funai junk now? That is terrible.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.
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Re: No power LC-26SB24U
Are you sure that is Sharp LC-26SB24U? I have exact model here in my house.
http://s807.photobucket.com/user/bud...ml?sort=3&o=13
http://s807.photobucket.com/user/bud...?sort=3&page=1
Shopjimmy:
http://www.shopjimmy.com/catalogsear...arp+LC-26SB24ULast edited by budm; 01-30-2014, 07:33 PM.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: No power LC-26SB24U
Emerson, Funai, Sylvania, etc?
This one?
http://www.shopjimmy.com/emerson-a17...upply-unit.htmLast edited by budm; 01-30-2014, 09:14 PM.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: No power LC-26SB24U
http://i384.photobucket.com/albums/o...psd8e8aed9.jpg
I circled the IC I replaced. When I put the new one in the pads around the thru-holes got damaged. I looked for continuity from the pins the other points and it looked okay. I'm just not sure if maybe one pin should have continuity to more than one point so I may try and restore the thru-holes to see if that helps.
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Re: No power LC-26SB24U
You may want to read through this thread:
https://www.badcaps.net/forum/showth...vania+LC320SS2Never 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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