Samsung un32eh5000fxza no power

[junkmale172]

Have a samsung that will not power up. I get no standby light or nothing. Main caps on ps read 163v, and connector cnm803 I get no readings on any of the pins, need to know where to start looking thanks.

[junkmale172]

Re: Samsung un32eh5000fxza no power

Back side of ps

[johnboy1313]

Re: Samsung un32eh5000fxza no power

This PSU has no PFC booster. 163V is correct at the main cap. I would check the diodes around the main cap.

[CapLeaker]

Re: Samsung un32eh5000fxza no power

do you get any standby voltage on that connector on the bottom?

[budm]

Re: Samsung un32eh5000fxza no power

Did it just die by itself or something happen and then it went out?

[budm]

Re: Samsung un32eh5000fxza no power

Check the DCV BETWEEN the two legs of the startup cap CM806. You MUST BE REAL CAREFUL since you will be working int he deadly primary side of the circuit so I hope you know what the precaution you MUST take when working in the primary side.

[junkmale172]

Re: Samsung un32eh5000fxza no power

I am getting 10v to 11vdc on cm806, the person I got the tv from says they just went in one day, and it wasn't working. I get no readings on any of the connectors on the power supply

[CapLeaker]

Re: Samsung un32eh5000fxza no power

so problem is in either the feedback or in the primary section. First I would look hard on these square blue caps in the primary. Take them out and measure those.

[budm]

Re: Samsung un32eh5000fxza no power

10~11VDC may be too low for the SMPS IC to start. Can you look at the P/N of that 8-pin SMD IC in that section where the cap is?'
You can also try heating up that cap to see the STBY power supply will startup, or you can just replace the cap.

[junkmale172]

Re: Samsung un32eh5000fxza no power

Replaced the cap, still getting same readings, also checked blue caps and I get 118v on both. Pn is s3310343 on the 8 pin SMS ic. Everything seems to be fine on hot side, but nothing on the cold side, what connects the two?

[budm]

Re: Samsung un32eh5000fxza no power

"Pn is s3310343 on the 8 pin SMS ic" That does not look right. There should be more than one line printed on the top of that IC.

[junkmale172]

Re: Samsung un32eh5000fxza no power

S3310 is on the top then 343 is the second line, if I am looking at the right chip

[budm]

Re: Samsung un32eh5000fxza no power

S3310 is on the top then 343 is the second line, if I am looking at the right chip

ICM801 is the designator for that SMPS IC.
S3310 looks to be the correct P/N.
http://nl.aliexpress.com/item/new-or...975209960.html
We will have to search for the spec sheet next.

[junkmale172]

Re: Samsung un32eh5000fxza no power

just ordered a power supply from shop jimmy for $30, should be here within a couple of days, maybe Monday at the latest, will update, thanks for all the help

[rawan]

Re: Samsung un32eh5000fxza no power

Hi
did u check IC D2011K in power supply, its +5v starting supply.
very failure in samsung tv

[rawan]

Re: Samsung un32eh5000fxza no power

Here is some more info.

[junkmale172]

Re: Samsung un32eh5000fxza no power

update, got a new power supply from shopjimmy, and everything is working fine, thanks everyone

[junkmale172]

Re: Samsung un32eh5000fxza no power

got the tv free, paid $33 for the part plus shipping

total investment of $36

[CapLeaker]

Re: Samsung un32eh5000fxza no power

good to see another tv saved from the bin!