-
Last edited by antas; 07-20-2017, 10:39 AM. -
Re: Samsung - LE32A457C1D - screen artifacts
TV name is Acoustic Solutions (don't know the model) Sn: 6464686 900044I. I suspect that T-con is bad? T-con Nr: 320AA05C2LV0.0
Any help, guys?Attached FilesLast edited by antas; 07-20-2017, 11:46 AM.Comment
-
-
Re: Samsung - LE32A457C1D - screen artifacts
Couple of those voltages look lowI assume no responsibility for any stupid suggestions I might post.Comment
-
Re: Samsung - LE32A457C1D - screen artifacts
What voltage should be? What points I have to check?
Ps.: Here is another picture what I got after connecting a Tablet to the HDMI port. Here could be T-con problem or not?Attached FilesComment
-
-
Re: Samsung - LE32A457C1D - screen artifacts
T-con voltages (typical)
1. Vin (Vcc): 12Vdc or 5Vdc
2. Vlogic,LCM, Vddd,VCC): 3.3Vdc
3. Vda (Vs, Vsource,VDD, Vdda,Avdd): 14Vdc~20Vdc
4. Vgh (Vgon,VGHR, Von, Vddg): 20Vdc~30Vdc
5. Vgl (Vgoff,VST,VGHF,VGHEVEN, Voff,Veeg): -5Vdc~-7Vdc
6. HVDD about 8v
7. DVDD,VDDC 3.3v, 1.2v
8. VCOM about 5~10vdc
Would also check gamma voltages. Need picture of t-conLast edited by dskall; 07-20-2017, 04:42 PM.I assume no responsibility for any stupid suggestions I might post.Comment
-
Re: Samsung - LE32A457C1D - screen artifacts
You could post vgma1-18 voltages in orderI assume no responsibility for any stupid suggestions I might post.Comment
-
Re: Samsung - LE32A457C1D - screen artifacts
There's a tcon that looks the same on ebay for £3.25 delivered.
I'm pretty sure the gamma voltages will be off.
What's the markings on the component top right ?Comment
-
Re: Samsung - LE32A457C1D - screen artifacts
Thank you for your quick reply. It's:
MAXIM
MAX9590
ETU905
NTP60CB
It is the chip IC15Comment
-
Re: Samsung - LE32A457C1D - screen artifacts
Thanks, as suspected that is the gamma IC. However if a tcon is £3.25 delivered, there's not much point replacing the IC.
I've marked the points that show where the gamma voltage test points are.Attached FilesComment
-
-
Re: Samsung - LE32A457C1D - screen artifacts
You were right, my friend. There are no volts at all. Is that mean if there are no volts on these points, the gamma IC is broken and resoldering this IC will fix T-con board (in this case)? Or it is not worth to do soldering jobs when this model of T-con cost a few pounds only?Attached FilesComment
-
-
Re: Samsung - LE32A457C1D - screen artifacts
This
The washed out image certainly looks the same as when the more common AS15 gamma ICs Fail. Those tcons can cost over £15 and commonly over £30 so replacing a 50p part that takes 5 minutes to replace is worth doing.
In your case it looks like the tcon at £3.25 delivered is cheaper than the IC that has to come from China.
I would have expected some volts on those pins, but I still think it's worth just replacing the tcon.Last edited by diif; 07-21-2017, 07:00 AM.Comment
-
Re: Samsung - LE32A457C1D - screen artifacts
Thank you, my friends, for the help and time, spent for me. T-con ordered. I'll let to know what happens after replacement.Last edited by antas; 07-21-2017, 03:02 PM.Comment
-
Hello everyone, I’ve just been given a Samsung UE55JU6800K smart tv as it had white spots on the screen due to the led lenses falling off. After refitting them & putting the tv back together I thought it was a nice easy fix for a free bedroom tv , then I tried it before screwing the back into place. I realised that the right side of the screen was darker than the other side, I removed the screen again as I thought the backlights had failed but they are fine.
I put the screen back in place & turned it back on . The screen seemed to be ok again but different screens on the same... -
Hi , I've recently replaced the screen in my Samsung galaxy ao2s, at first it wouldn't even turn on, it had the charging symbol on the screen when plugged in but the green circle wasn't going around to show it charging....
Ive eventually managed to get it on and working but it's very temperamental...
The battery icon always reads as 50% , when the phone goes into lock screen mode i sometimes can't get the screen back on unless I plug the charger in to get it to light up, also it keeps putting the camera app on.. u think it could be something to do with the side buttons. ...05-26-2024, 12:05 AM -
Samsung UN55J6200AFXZA Splash Screen Comes up, goes out, screen flashes one time and then tv won't turn off.
No picture. No sound that I can tell. Backlights are on and have been checked. Flashlight test no image on screen. I replaced the Eprom chip hoping that was the problem but nothing changed.
Please help. Thanks in advance! -
HI guys!
I've got a Samsung LH82QENELGC/EN with a problem and need some advice and I hope this is the forum to use?
I'm from Norway so I'd like to apology in advance if my description of the fault is kind of simple or the names on the components are way off. 😊
the TV is powering up, working as normally and picture is all good, except a 1.5-inch-wide vertical line of snow/static across the screen.
This TV is a Signage Display/Public Display version and it's been used at my work for 4-5 years showing commercials 24/7. The fault occurred when... -
Hello everybody! Posting this in hopes somebody has some expertise that leads to a clear path of troubleshooting that saves me a lot of time!
My macbook has the flex cable problem, the one that prevents the screen turning on. Ive been dealing with this for the last 3 years. Last year it went dead and I managed to fix it following youtube tutorials. But my fix wasnt the best, the problem returned a month later. This week, it went dead again. I again tried to fix it.
This time the original cable broke too close to the screen, it can't be fixed without tearing the screen...
Comment