Samsung LA32C350D1 Any Idea About This Fault?

[tiku]

Hello friends, my samsung LAC32C350D1 is in this position, has anyone has any idea what is the fault?, is it the main board or panel?
pics are attached,
Pic a.b.c has been selected tv source, pic. Front and front 2 is been selected HDMI Source.also attached back pics, there is is no T-Con Board, Only Main Board and Supply. Your help is urgently needed,Thanks.

[Davi.p]

Re: Samsung LA32C350D1 Any Idea About This Fault?

The model i think is LA32C350, it seems more a tcon problem, check well is under the cover where the wide flat band connection goes from mainboard. (center of the tv).

[tiku]

Re: Samsung LA32C350D1 Any Idea About This Fault?

The model i think is LA32C350, it seems more a tcon problem, check well is under the cover where the wide flat band connection goes from mainboard. (center of the tv).

The one you just mention goes directly in the panel pcb strip. see the pics i don't think there is any T-con Board this model has.

The sticker on the backside says Model:-LA32C350D1
Type:-LA32C350

[Davi.p]

Re: Samsung LA32C350D1 Any Idea About This Fault?

Maybe the the tcon is integrated to the screen but it always exists.

[tiku]

Re: Samsung LA32C350D1 Any Idea About This Fault?

Are you 100% sure that there is T-Con inside, so i dis-assemble it completely, because panasonic TH-L32C30 SERIES also dont have T-cons.

[Davi.p]

Re: Samsung LA32C350D1 Any Idea About This Fault?

100% there is always a tcon, when the output cable is only one tcon is on the screen.

[CapLeaker]

Re: Samsung LA32C350D1 Any Idea About This Fault?

can we see a pic with the OSD menu on the screen?

[Davi.p]

Re: Samsung LA32C350D1 Any Idea About This Fault?

I've seen a similar issue on italian forum, have you disconnected - cleaned - reconnected the flat cable?

[tiku]

Re: Samsung LA32C350D1 Any Idea About This Fault?

@Capleaker,Nothing on the screen, No OSD Menu Display.

@Davi.p; yes i cleaned the flexcable with the eraser, checked the continuity of the flex cable with miltimeter.but same result.do you have a link of italian forum, may be i can use a google translator and see if i can find some solution to my problem.

[CapLeaker]

Re: Samsung LA32C350D1 Any Idea About This Fault?

Check the LVDS differential pairs with the oscilloscope and turn the OSD menu on and off all the time, while probing the LVDS. If there is video coming out of the main board, you will see the difference on he scope while the OSD is on and off. That will determent if you got a main board or a TCon problem.

[Davi.p]

Re: Samsung LA32C350D1 Any Idea About This Fault?

tiku i've already searched Italian forum, no threads for your issue apart the one that have no conclusion. There's a video where you see that video come away by shaking it and remain for an instant a video similar to your first picture. So maybe them are unfortunately tab bonds problem. Open the screen and search the one that pressed restores the video.

[tiku]

Re: Samsung LA32C350D1 Any Idea About This Fault?

Thanks Capleaker but i don't have oscilloscope.

[budm]

Re: Samsung LA32C350D1 Any Idea About This Fault?

Looks like bad panel to me.
Tab boding boards are on the bottom edge of the screen, right?

[tiku]

Re: Samsung LA32C350D1 Any Idea About This Fault?

100% there is always a tcon, when the output cable is only one tcon is on the screen.

Where is the T-Con???, I Could Have Easily Damaged those CFL's

@budm:- Yes Tab boding boards are on the bottom edge of the screen.
Conclusion:- I think its a panel fault & T-con is built in MainBoard.

[budm]

Re: Samsung LA32C350D1 Any Idea About This Fault?

T-con is integrated into the panel, these panel with Tab bonding/T-con board on the bottom edge get damaged by the cleaning fluid that drips down on to the board and eats away traces and causes corrosion.

[Davi.p]

Re: Samsung LA32C350D1 Any Idea About This Fault?

its visible on the last photo.

[tiku]

Re: Samsung LA32C350D1 Any Idea About This Fault?

As far as i know T-con board is atleast 3x4 Inches wide or more, there is not enough space in that panel,the panel top cover is 2 inches only, how can there be T-con Hidden inside there, its only Tab Bonding PCB there with few capacitance and resistors only, and the one you mention that Strip is hardly 1.5 inches.

[Davi.p]

Re: Samsung LA32C350D1 Any Idea About This Fault?

tiku.. e-ehm.. please.. watch the number of posts under your Nick and under my nick, i have also more than 3500 posts on Italian forum, you can trust me! Dismantle metal frame and you see..

[Andrew F. Ali]

Re: Samsung LA32C350D1 Any Idea About This Fault?

As far as i know T-con board is atleast 3x4 Inches wide or more, there is not enough space in that panel,the panel top cover is 2 inches only, how can there be T-con Hidden inside there, its only Tab Bonding PCB there with few capacitance and resistors only, and the one you mention that Strip is hardly 1.5 inches.

Though the external T-Con Bds are about 3"X4". The integrated T-Con Bds are about 3/4"X20" when they are built as part of the Panel. Ant LCD Tv MUST have a T-Con Bd for us to intelligibly see a picture.

[budm]

Re: Samsung LA32C350D1 Any Idea About This Fault?

It is the T-CON/tab bonding board, you can see the SMD fuse FP1 (UD printed on top) and the 12V feeding it. If you do not believe it then there is nothing I/we can do to help. You may have not seen many LCD panels as we have here at badcaps to know what we are talking about.
You can also see the LVDS signals RX0, Rx1, .....
https://www.badcaps.net/forum/attach...0&d=1511171980
BTW, look up the spec sheet of that LCD panel and you will see what we are talking about.
Once you open it up, look for corrosion as suggested also.