Question about Philips 37PF7320A 37 in. HD-Ready LCD Television

3 Answers

Blinking red lights

When I turn on my 37PF7320A, the green ligh comes on but immediately turns into a one red blinking light followed by four consecutive red blinking lights. I do not know if it is the power supply or other component. If it is the power supply, is there a place where I can find the schematics and instructions on how to change the power supply? My set is out of warranty and the local repair shop wants $650 which is way to much money. Thank you in advance for any assistance yo may provide,

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  • Sanchofiris May 18, 2008

    Thank you very much for your help. Would you happen to know the power supply part number and a reliable source for purchasing it? After this fiasco, I am not sure I'll ever buy another Philips product again.

    Thanks once again for your help.



3 Answers

Buy a service contract for the money cant beat it.

Posted on Jun 24, 2008


Yes i have had 3 older models that did the same thing it is a 47 ohm resistor on the power supply

Posted on May 18, 2008

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Call the manufacture of the TV set to find out who their authorized service is in your area.

These sets are expensive to service. They are serviced by mainly board replacement. There is very little support for component level service.

The boards use high density SMD technology, and is all uPC controled using firmware.

As for your fault, you would have to determine if the power supply is in the protect mode because of a defect on another board, or if the fault is the power supply only. This is usualy done by doing board swapping to find out which boards are defective.

Some of the manufactures will sell the service manuals for their flat panel sets. Not all the schematics will always be complete. The information is mainly for how to replace the boards, and do the factory level calibrations if necessary. You will need the proper calibration and diagnostic tools to do the tests and adjustments as indicated by the service manual.

Jerry G.

Posted on May 16, 2008

  • Jerry Greenberg
    Jerry Greenberg May 19, 2008

    The only reliable parts support is Philips or one of their authorized parts distributors. They should be able to sell the service manual and circuit boards. Your set is mostly serviced at the board exchange level. There is very little component level service supported for these sets.

    I do not have the service manual for this set, and therefore I cannot tell you the part number, or give any detailed service advice for the particular model. I can give you information genericaly.

    I would not advise changing the the power supply yourself. It is very possible that there is a fault on another board that is causing the power supply fault in the first place. You may change the supply and still not have the total problem fixed. I have had many instances where there were faults on a board that also caused damage on other boards.

    The authorized service center should have access to a full set of boards to use for testing during the diagnistics procedure. This is providing that the model is not obsolete and the parts are still available.

    It can be a very expensive ordeal to try to service a set yourself, unless you have the setup for proper diagnostics, calibration, training, and service information. You may end up buying a number of boards and still not have the set properly fixed, and also require adjustments that you don't have the setup to perform.

    Link For Philips:

    Jerry G.


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