I'm in need of a transformer for a goodmans TV. Numbers on transformer are
Mlt666bx-t2.
Ymx-604-048.
Can anyone help.
Mlt666bx-t2.
Ymx-604-048.
Can anyone help.
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Re: Where can I buy transformers in UK
Is this an inverter transformer, or some other transformer?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. -
Re: Where can I buy transformers in UK
I think it's a inverter transformer.
Have a goodmans TV that won't turn on. But if I remove this transformer the TV works fine.Comment
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Re: Where can I buy transformers in UK
But it can be the devices that drive the transformer are bad.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=24809Comment
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Re: Where can I buy transformers in UK
I done a few tests on the transformer and I'm sure it's faulty.Comment
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Re: Where can I buy transformers in UK
Like what? How about the devices that drive the transformer?
Pictures of the board?
This one?
http://www.ebay.fr/itm/MLT666BX-T1-T...item1c2c318ae2
BTW, "Have a goodmans TV that won't turn on. But if I remove this transformer the TV works fine." so how can it work fine without the transformer? Something does not make sense here.Last edited by budm; 05-12-2015, 02:37 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=24809Comment
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Re: Where can I buy transformers in UK
Just what I saw in YouTube. Testing ohm's.
Will do pics tomorrow.Comment
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Re: Where can I buy transformers in UK
Yeah that's the board. Removed middle transformer and TV works. Very weird.Comment
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Re: Where can I buy transformers in UK
There is no inverter transformer on that power supply board.
Those two big one are the power transformers, not sure if they are for the 12V/24V supplies and if they are driven by the same circuit.
DRC on the primary side will show very low resistance, so you think it is shorted out.
Ohm meter cannot really be used to find out if the transformer is really good or bad, you can do comparison reading on the High voltage side but that does not mean if it has shorted turn it is still good because Ohm meter will not be able to show that. You need ringer for testing.
Need to find out how it is driven, if they are driven in parallel, and if the rectifiers in the secondary is shorted, you should check them.
Post good clear pictures of the connectors and the bottom side of the board. Those transformer rarely goes out.Last edited by budm; 05-12-2015, 02:50 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=24809Comment
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Re: Where can I buy transformers in UK
Sry. I'm new to all this so might get names wrong. On the board there are two transformers the same. I've removed the bottom one of the two.Comment
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Re: Where can I buy transformers in UK
I will wait for the pictures, you already check the rectifier diodes on the output side of the transformer that you removed?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=24809Comment
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Re: Where can I buy transformers in UK
Can't see any pictures.
Please use "Manage Attachments" feature to upload pictures.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.Comment
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Re: Where can I buy transformers in UK
The transfomers may be driven in parallel for the 24V, so if one is bad, removing the bad one will allow the power supply to function at at half power. Need to see the bottom side of the board to verify.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=24809Comment
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Re: Where can I buy transformers in UK
It's pretty rare to see these transformers fail because they are safety devices. If the windings burn on failure, then it can break down the insulation tape. That is at least according to the power supply guy at my workplace. So personally I would be quite surprised if the transformer were bad.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.Comment
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Re: Where can I buy transformers in UK
That is why I would like to see the good clear pictures if the bottom side of the board to figure out what is going on.
I myself never have to replace any power transformer yet.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=24809Comment
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Re: Where can I buy transformers in UK
Comment
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Re: Where can I buy transformers in UK
that's a long post
Comment
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Re: Where can I buy transformers in UK
The photo isn't clear enough to tell, but it looks like the transformers are connected in some kind of series or parallel arrangement. That's quite unusual.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.Comment
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Re: Where can I buy transformers in UK
I need better focused pictures of the bottom side of the 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=24809Comment
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