IC Chip Recognition - Experts Only Please

[walt113]

Hello all,

I have a burnt out IC chip from circuit board 3PAGC10053A-R.

Its a power supply board from LED TV. Can anyone identify this 7-Pin chip?

http://postimg.org/image/dbpnlaewh/ <-- High Res Pic



http://postimg.org/image/6txc0mmhf/ <-- High Res Pic



http://postimg.org/image/w2i5uarf7/ <-- High Res Pic


click on link for full image

Thank You in advance

 

[wwenze]

Post the picture of the board. The location tells its function.

 

[walt113]

thumbnail added. click on link for full picture

 

[commach]

Honestly, try to ask god without the actual picture of the circuit board. Expert also have problem trying to figure out what's that.

Moreover, I doubts this is a 7 pins chip to start with.

 

[wwenze]

http://www.servicemanual.ws/lg-manuals/1498180/lg-oem-lgit-pldk-p011a-schematic.html

 

[walt113]

Honestly, try to ask god without the actual picture of the circuit board. Expert also have problem trying to figure out what's that.

Moreover, I doubts this is a 7 pins chip to start with.

added circuit board pic. hope you can help. it should be 7 pins

 

[walt113]

http://www.servicemanual.ws/lg-manuals/1498180/lg-oem-lgit-pldk-p011a-schematic.html

Thanks for the link, but i'm not sure if that is the 3PACG10053A-R circuit board schematic. There is an LG logo on the board though. Tried to search for the schematic at the site to no avail.

 

[commach]

Should be a switching IC, LMK304.

Please don't blame me if I got the answer wrong.

 

[wwenze]

Power integration LNK362

 

[walt113]

Should be a switching IC, LMK304.

Please don't blame me if I got the answer wrong.

Don;t be silly! Thanks for helping. I'll look it up

 

[walt113]

Power integration LNK362

Thanks to your too! Haha... so who is right? I don't wanna solder the wrong chip back onto the board.

 

[Godeau]

Thanks to your too! Haha... so who is right? I don't wanna solder the wrong chip back onto the board.

wwenze is correct, i was looking at the circuit diagram, but it doesn't specify which variant; pn, gn or dn

 

[walt113]

wwenze is correct, i was looking at the circuit diagram, but it doesn't specify which variant; pn, gn or dn

Where to find the circuit diagram man? was looking high and low for it.

does the package identifier pn/gn/dn matter?

 

[wwenze]

PN for DIP version

 

[commach]

wwenze's answer should be the correct one, I didn't download the schematic, wild guess.

 

[walt113]

now i only hope i can find it in Sim Lim Tower easily....

 

[Godeau]

PN for DIP version

can close shop liao haha

 

[walt113]

PN for DIP version

champs la you. kam sia very much. hope thats the only faulty part in the board.

 

[BlueCloud85]

http://sg.rs-online.com/web/p/intelligent-power-switches/0533806/

free delivery to your house. Don't need hunt SLT for it.

 

[walt113]

http://sg.rs-online.com/web/p/intelligent-power-switches/0533806/

free delivery to your house. Don't need hunt SLT for it.

http://sg.element14.com/webapp/wcs/stores/servlet/Search?sf=455&catalogId=15001&showResults=true&mf=100868&categoryId=800000000320&langId=65&storeId=10191

Found this place can buy 1 piece.

Hope it works.

Thanks to all the gurus here!!