Question about Televison & Video
a ) Most likely power supply circuits, or a failed communication on the
b ) Possible causes can be from a resistor , to the low voltage
regulators on the SMPS ,
could also be from the feedback circuits
either in the horizontal deflection circuits ( if CRT type ) or " Power
Supply Unit " for the lamp if it is LCD , Plasma or LED type.
c ) Troubleshooting the unit , requires checking out the output
voltages of the power supply and check for possible bad capacitor .
d ) There are also instances that communication to the " Modules "
are failing thus triggering protection circuits or are activated.
e ) If you feel can work on the circuits , indicate the Model, Brand.
chassis number ( if available ) and the things you have done to
remedy the cause.
f ) It can also be caused by a cracked solder joints on the circuit Board,
around the flyback area ( if CRT type )
g ) Those are just possibilities there could be other causes , but try
those circuits first.
h ) Let me know if you need further assistance after you have started
probing around .( Only if you feel you can work on these circuits ).
Thanks for choosing Fixya for assistance!
Posted on Feb 09, 2010
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Posted on Jan 02, 2017
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