Samsung UN60EH6000 Tries to come on, but stops

[karthur]

Re: Samsung UN60EH6000 Tries to come on, but stops

But whitout TIP is ridicolous, on a board with very tiny smd components, you risk highly to burn it.. the tester i've said is not professional..

A added the tip on the end of my lead just so that I could modify it. I have ground this down to a needle point so I can get it into tight places on a board.

Here is the picture of the T-Con board.

Thanks

[Davi.p]

Re: Samsung UN60EH6000 Tries to come on, but stops

Is not Hires photo, what can i see with this?? And also, get only tcon not cables and chassis..

[karthur]

Re: Samsung UN60EH6000 Tries to come on, but stops

Sorry, just figured out you wanted a "Hii-Res" photo. I'll get you one.

[karthur]

Re: Samsung UN60EH6000 Tries to come on, but stops

Here is a high resolution image of the T-Con board (BN95-00628C). This image gets compressed in the translation. I also put a copy of it on my google drive so you can get the full resolution image if you need it.

This is a direct link to the full size image.

[Davi.p]

Re: Samsung UN60EH6000 Tries to come on, but stops

Ok i've DL it, now im editing..

[Davi.p]

Re: Samsung UN60EH6000 Tries to come on, but stops

Test all point in volts. I don't see well to what is connected Q7100 apart those 2 elctrolitycs, but if you want test them...
If some points has a near zero V then them must be retested with output flatcables detached...
To upload pictures click on paperclip, a popup window appears, select the file locations, click upload and wait, when done close window then write the text, click newly on the paperclip and select the pictures to include..

[budm]

Re: Samsung UN60EH6000 Tries to come on, but stops

It looks to be high failure rate T-CON.
Samsung BN95-00628C (BN97-06551C, BN41-01815A) T-Con Board
http://www.shopjimmy.com/catalogsear...ung+UN60EH6000
Notes from SJ:
PLEASE NOTE: We recommending using one of the following boards as a substitute for this T-con:
BN96-28943A
BN96-28944A
BN95-00944B
BN95-00944C
Pictures provided by shopjimmy.
We have found these boards to have a lower overall failure rate than BN95-00628A, BN95-00628B or BN95-00628C.
Check the resistance between the two legs of those SMD LYTICS caps (4).
Report the DC Voltage reading of the ADJ 1117 LDO IC303.

[karthur]

Re: Samsung UN60EH6000 Tries to come on, but stops

Test all point in volts. I don't see well to what is connected Q7100 apart those 2 elctrolitycs, but if you want test them...
If some points has a near zero V then them must be retested with output flatcables detached...
To upload pictures click on paperclip, a popup window appears, select the file locations, click upload and wait, when done close window then write the text, click newly on the paperclip and select the pictures to include..

Here are the readings with the output cables connected (all readings in dc Volts):
A=1.8
B=3.3
C=12.7
D=12.7
E=12.7
F=12.7
G=0
H=12.7
I=0
J= n/a
K= n/a
L=12.7
M=0.7
N=12.7

For the ones that were close to Zero, I retested with output cables disconnected.
G=0
I= 0
M=0.7

I found the Q7100 that you mentioned, but not sure what I need to test there. If I need to check something near Q7100, just let me know what it is.



Thanks.

[karthur]

Re: Samsung UN60EH6000 Tries to come on, but stops

Check the resistance between the two legs of those SMD LYTICS caps (4).
Report the DC Voltage reading of the ADJ 1117 LDO IC303.

Where are the SMD LYTICS caps?

Can't find the ADJ 1117.

Here is what I get on IC303.

[freakaftr8]

Re: Samsung UN60EH6000 Tries to come on, but stops

IC 303 seems right. That's a fixed regulator.

[freakaftr8]

Re: Samsung UN60EH6000 Tries to come on, but stops

IC 7100 shoud have about 12v in I believe. Opposite side of triangle. Triangle pin should have output voltage.

[nicholas1110]

Re: Samsung UN60EH6000 Tries to come on, but stops

We have repaired many of these boards. It is usually the ic ISL9860. Shop jimmy has a repair kit for this tcon and also a YouTube video showing the easiest way to remove and replace this ic. In the YouTube video they show replacing 2 smd caps. If you test those with your meter they will show shorted. This means the ic is shorted. Hope this helps.

[karthur]

Re: Samsung UN60EH6000 Tries to come on, but stops

We have repaired many of these boards. It is usually the ic ISL9860. Shop jimmy has a repair kit for this tcon and also a YouTube video showing the easiest way to remove and replace this ic. In the YouTube video they show replacing 2 smd caps. If you test those with your meter they will show shorted. This means the ic is shorted. Hope this helps.

The repair kit that I found for my board on SJ is out-of-stock. Does anyone know the size of the two SMD caps that I need?

I have a source for the ISL9860.

Thanks.

[vinceroger69]

Re: Samsung UN60EH6000 Tries to come on, but stops

The repair kit that I found for my board on SJ is out-of-stock. Does anyone know the size of the two SMD caps that I need?

I have a source for the ISL9860.

Thanks.

if shopjimmy are out of stock maybe message them as they may advise you on the capacitor values/size they are very helpful i find

[karthur]

Re: Samsung UN60EH6000 Tries to come on, but stops

No-can-do on providing the size of the capacitor. Anyone with a service manual that will tell the size of it?

Thanks.

[vinceroger69]

Re: Samsung UN60EH6000 Tries to come on, but stops

do you know the voltage and uf rating already and you just need the physical size?

[karthur]

Re: Samsung UN60EH6000 Tries to come on, but stops

I am going to check the caps tonight.... maybe mine are not damaged. If they are gone, I would have to know all aspects of them to order new ones. I could get the physical size, but would have to correlate to a form factor.

[vinceroger69]

Re: Samsung UN60EH6000 Tries to come on, but stops

i have a cheap pair of digital calipers and use this guide https://www.pcblibraries.com/forum/s...topic1729.html
norcal715 has a video on this fault https://www.youtube.com/watch?v=iuHrnvAKlGw

[freakaftr8]

Re: Samsung UN60EH6000 Tries to come on, but stops

Nice charts! But Where in those charts show the capacitence?

[karthur]

Re: Samsung UN60EH6000 Tries to come on, but stops

norcal715 has a video on this fault https://www.youtube.com/watch?v=iuHrnvAKlGw

Yea, that is one of the YT videos I watched. Norcal makes it look easy.

He is probably right about why they are failing (heat... need to add thermal conductor)