"Dead" Emerson (Funai) LCD TV model EWL20S5

Mar 19, 2008 3 Replies
B

Hi,



Regarding Emerson (Funai) LCD TV model EWL20S5 (mfg 03/06):



Symptom: TV won't turn on.



Now that I finally got the SM, I was able to perform tests.



The 5.5V source reads 1.8V. I replaced C635 470/10, which read around



340uf on tester, with a 470/16 105deg., but that didn't fix the problem. I tested many components and ruled out a heavy load on power supply (SMPS). Raw B+ is fine. There are other components I have to test, but to save time, has anyone serviced this model or a similar model with the same symptom?

Thanks in advance, Brad



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A

Are the other voltages from the power supply normal per the schematic? Bet you will find a few more flakey caps in the unit before getting it operational again. Poor design with mediocre components. IMHO!

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B

Hi,

The TV is repaired. Note: It took a long time getting the SM.

The following parts were replaced:

C635 470/10 measured at 340uf. I replaced with 470/16 105deg. D634 shorted, I replaced with NTE 519 D638 (parallel with D634), tested ok, but I replaced it with NTE519 D645 shorted, FR154 I replaced with NTE 580

Brad

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B

Hi,

The TV is repaired. Note: It took a long time getting the SM.

The following parts were replaced:

C635 470/10 measured at 340uf. I replaced with 470/16 105deg. D634 shorted, I replaced with NTE 519 D638 (parallel with D634), tested ok, but I replaced it with NTE519 D645 shorted, FR154 I replaced with NTE 580

Brad

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