hi got this small tv dvd tv that wont stay on when i switch on the light turns green then goes back to red see pic off layout
lcd19-229 stand by light on and off
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Re: lcd19-229 stand by light on and off
common fault on these is bad LDO regulators on main board.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. -
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: lcd19-229 stand by light on and off
if its a technika one,it will be bad output caps also....fixed so far...376 lg lcd tv's,24 onn tv;s,24 panasonic lcd,16 jvc lcd,12 marshall jcm800 amps,refurb of various disco equipment lighting,old style disco decks ,and a flymo!
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please let us know if everything works ok if your tv gets fixed, as it will be and aid for anyone else having the same problem and wishing to fix it.it would save people clogging up this site with topics that are duplicated,and can be found easily using the search function.,and taking up valuable space.enjoy your fixed tv!,hopefully!Comment
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fixed so far...376 lg lcd tv's,24 onn tv;s,24 panasonic lcd,16 jvc lcd,12 marshall jcm800 amps,refurb of various disco equipment lighting,old style disco decks ,and a flymo!
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please let us know if everything works ok if your tv gets fixed, as it will be and aid for anyone else having the same problem and wishing to fix it.it would save people clogging up this site with topics that are duplicated,and can be found easily using the search function.,and taking up valuable space.enjoy your fixed tv!,hopefully!Comment
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Re: lcd19-229 stand by light on and off
1 has 1117 b then under say ade11u
so im gues the top 3 r 3.3 volts ? and would test left to rightLast edited by tonyuk; 03-04-2014, 01:43 PM.Comment
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Re: lcd19-229 stand by light on and off
Top are 3.3V, bottom is 1.25V.
The voltages should be tested left to right, in the orientation in which the labelling on them reads the right way around i.e. you don't have to crane your neckPlease 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: lcd19-229 stand by light on and off
ok and says you test on 20v setting yes ? even though i thought 2v would of been the way lolLast edited by tonyuk; 03-04-2014, 01:56 PM.Comment
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Re: lcd19-229 stand by light on and off
20V, because that's the maximum range your meter can support. If you tried to read 3.3V on a 2V range, your meter would just show over-range ("OL" or single "1")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: lcd19-229 stand by light on and off
fitting kitchens or building engines is so much easierComment
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Re: lcd19-229 stand by light on and off
Haha, maybe for you, honestly I'd probably fit the kitchen upside down and have half the parts from the engine missing.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: lcd19-229 stand by light on and off
ok so below is list
1st
=000
=3.31
=5.07
2dr
=000
=3.32
=4.98
3dr
=000
=3.31
=4.97
this is the 1.25v
=0.61
=1.86
=3.38
this is me testing with light stuck on red stand by black lead to screw red to each pin left to right lolLast edited by tonyuk; 03-04-2014, 02:30 PM.Comment
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Re: lcd19-229 stand by light on and off
Can you try making the measurements as you turn the set on for the last three? You may have to turn it on and off a lot of times. A close picture of the power supply showing the label would help too.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: lcd19-229 stand by light on and off
ok re-done list above with green light onComment
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Re: lcd19-229 stand by light on and off
Hmm, my error on the 1.25V. That is OK, it is just normal adjustable type. doh.
Readings seem good, so there's little more to suggest.
Can you see part U7 near one of those LDOs? What is the part # on it?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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Comment
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Re: lcd19-229 stand by light on and off
Part # printed on device U7 please?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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