Question about Philips 37MF321D 37 in. LCD Television

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Turn itself off as soon as you turn it on (37MF33ID/37)

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In the lcd tv there are three main parts
1)the inverter board(pannel)
2)the main board .
3)the power supply board.
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if there is no power at all them main board is faulty.if no front led light is coming ON there is no power .so the main board is faulty.on the main board there is a fuse located you have to replace that and check first if still no power main board needs to be checked and replaced
---------------
if there is sound but no picture and front led light is ON then its inverter board panel problem.if this is your case replace inverter panel.its located in the lower side of the lcd in the inner area below the main board.
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but if there is just front led light blinking , but no picture or sound then its power supply board problem.
------
but as you mentioned that the tv turns ON for some seconds then automatically turns off this indicates that the power supply board is not faulty but there is a component on the board that is getting over heated because its got weak so due this overheating of a component the circuit gets short and tv shuts off.
on power supply board there are some capacitors and ic located.if any of the component gets short or budged up then it short the power supply board.so you can check the components on power supply board with multimeter and get it replaced by using soldering iron.
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also you can get new replaCEment power supply board.this clears the problem completely.
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you can get the required board and components at ----- www.partstore.com -------- or from ------ www.radioshack.com ----
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if you are not familiar with doing this you can get it done by local tv repair technician familiar with this model tv.
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This will help. Thanks please keep updated.please do rate the solution positively .thank you for using fixya.

Posted on Feb 20, 2010

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