About LG power supply

[hispeck]

Hi mate,
Am happy to be part of you guys i need help on the psu, this LG tv came to me with green light after powered on but no back light no sound no image, i opened and saw that the psu output of 19v 12v 3.4v 6v and 24v was missing only stb 5v was there the main board is OK, i attached then picture of the psu, the tv model is 32lc7r-tb please any help is welcome
thenks
hispeck

 

[Tony Stewart]

Big cap in the middle has spewn out toxic electrolyte on the left. Replace it with equivalent or better. Replace the other beside it while you are at it.

 

[Nigel Goodwin]

Big cap in the middle has spewn out toxic electrolyte on the left.

It's not a very good picture, but it doesn't look like that to me - more like glue on the board holding components in place.

However, electrolytics on the secondary side that have gone high ESR is apparently a common fault on LG sets, as (like Samsung) they tend to use cheap sub-standard ones.

 

[granddad]

Replace all the electro caps , with 'good ' components . the white blob is just glue .

 

[cowboybob]

Welcome to ETO, hispeck!

This might help you: https://www.eserviceinfo.com/downloadsm/37728/LG_32LC7R--32LC51--32LC52.html

as well as this: https://www.amazon.com/LG-32LC7R-TB-Repair-Capacitors-Entire/dp/B00JCV9DQA

 

[Nigel Goodwin]

as well as this: https://www.amazon.com/LG-32LC7R-TB-Repair-Capacitors-Entire/dp/B00JCV9DQA

Nice

You can even see four definitely duff ones (with domed tops) in their picture.

 

[hispeck]

Sorry guys, the picture is an old one i have already replaced the bad cap before sending posting, the only thing i did not do was to replace the second cap, concerning the schematic sent to me, i have that model but it is not the same with it appears to different, i just need schematic for 32lc7r-tb
thanks in advance
hispeck