Re: Samsung LN46C630 Thin Vertical Lines on entire screen
Well I tried replacing the LVDS cable and that did not solve the problem.
I found that pressing on the IC chip (see [COLOR="Red"]RED[/COLOR] IC on the Main board photo), I could get the vertical lines to disappear.
It would appear that the BGA is in need of a rework. Maybe re balling.
I am not set up to do this type of work.
Anyone out there know a good reputable service and an approximate cost to re-ball the red IC in the photo?
ThankRe: Samsung LN46C630 Thin Vertical...
n1iwv
Member
Last Activity: 07-12-2017, 03:40 PM
Joined: 06-12-2013
Location: greenfield, nh
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Re: Samsung LN46C630 Thin Vertical Lines on entire screen
I have a Samsung LN46C630 with the same exact symptom of thin vertical lines (about 4 mm spacing) across the entire screen.
I have played around with it and found that if I flexed the LVDS cable at the connector on the main board, I could get the lines to disappear. The flexing exercise involves pulling the cable near the connector away from the main board.
I took a wooden stick about 1/8" in diameter and 2 inches long (about as wide as the cable) and wedged it between the cable and the main board. This...Leave a comment:
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Re: Insignia NS-LCD32 Vertical Red Line
Thanks for your reply Tom.
I thought that might be the case.
It's still useable as a computer monitor.
Thanks again
EdLeave a comment:
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Insignia NS-LCD32 Vertical Red Line
Hi All:
I think I know what the problem is, but I just wanted to run it by the resident experts to confirm my suspicions.
The problem is that I have a single red vertical line on the screen
It appears to be 1 pixel wide.
So far I have cleaned all the ribbon cables and connectors on the T-Con board as well as the connectors on the "Tab board" the runs along the bottom of the LCD panel.
I've inspected that tab bonds to the LCD panel and see no obvious signs corrosion of breaks in the ribbon cables.
Pressing on the ribbon cable in the area... -
Re: Samsung LN-S2651D Schematics needed
Just a quick follow up on this repair.
It ended up being the main board.
Replaced it and the set is working fine now.Leave a comment:
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Re: Samsung LN-S2651D Schematics needed
When the TV is plugged into AC, the red power light blinks 4 times and the light will extinguish.
After 30 - 40 seconds that cycle will repeat ...endlessly.
Pressing the power button does nothing. No video, sound or back light.
It appears that the TV never enters into standby mode.
I have the service manual, but it provides no schematics.
Initially I thought it might be the main board, but I measure the voltage on pin 1 on CNM801. It should be 12 volts, but I measured 13.8 volts.
Now I suspect the...Leave a comment:
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Re: Samsung LN-S2651D Schematics needed
Hi Tom66:
I've looked all over the power supply board and the only number I see is
BN96-03060A.
See attached picture.
Thanks for your reply....Leave a comment:
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Re: Samsung LN-S2651D Schematics needed
Hi Budm:
Thanks for the quick reply.
That was the first place I looked.
I've been using the "main board" schematic for the LN-S3292D that I downloaded from that site and it looks very similar (if not identical) to the main board for the LN-S2651D,
But I didn't see anything for the power supply / BN96-03060A.Leave a comment:
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Samsung LN-S2651D Schematics needed
Hi All:
I am looking for schematics for a Samsung LN-S2651D / Chassis GBD26KU.
Specifically looking for schematics for the power board BN96-03060A and the main boards BN94-00863A. The sticker on the main board also shows number BN41-00679C.
Any help would be greatly appreciated.
Thanks in advance -
Re: Samsung LN-S2551D Blinks 4 Times..No Video, Sound Or Backlight
Replaced Ic 103 (4435B / mosfet power switch) and still no joy.
The set continues to recycle with 4 blinks on the power indicator and never enters standby mode.
After looking at the power schematic for ln-s3292d (which seems similar to my set) it seems that IC 103 would never switch on until it received the SW_PVCC signal from IC201.
The fact that the set continues to cycle through attempts to enter standby mode leads me to believe it has something to do with IC-206 (DS1834AS/T,R)
Its...Leave a comment:
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Re: Samsung LN-S2551D Blinks 4 Times..No Video, Sound Or Backlight
[QUOTE=n1iwv;347884]Hello: I have made changes to my original post to correct reading at C108 and add Samsung as the manufacturer of the TV.
I’ve been using this site for awhile to help me resurrect TVs and monitors.
It’s a great resource
This is my first time posting.
My goal is to get this TV working, but more importantly, I am trying to learn something to improve my troubleshooting skills along the way.
Symptoms: LN-S2651D Chassis GBD26KU
As soon as I plug the TV...Leave a comment:
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Re: LN-S2551D Blinks 4 Times..No Video, Sound Or Backlight
Thanks for the quick reply.
It appears I was measuring the 9 volts from C106 not C108 as required in the troubleshooting flow chart.
I flipped the main board over and found IC 101 (78M09A) and measure:
pin#1----13.24V
pin#2----.0002V
pin#3----9.01V
So I went back to the front of the board and located C108 right in the opposite side of IC 101 and it measures 9.01 V.
Sorry for the mistake, but these old eyes aren't what they use to be.
I rechecked all...Leave a comment:
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LN-S2551D Blinks 4 Times..No Video, Sound Or Backlight
Hello:
I've been using this site for awhile to help me resurrect TVs and monitors.
It's a great resource
This is my first time posting.
My goal is to get this TV working, but more importantly, I am trying to learn something to improve my troubleshooting skills along the way.
Symptoms: LN-S2651D Chassis GBD26KU
As soon as I plug the TV into AC the power light will flash 4 times ( 1 flash per second) and then extinguish. After approx. 5 seconds, the cycle will repeat endlessly.
Pushing the power button (I don't have the remote) does nothing. I get... -
Re: New Members - please post your introductions here
Hello:
My name is Ed and as my username implies, I am an active ham radio geek.
I've used this site in the past to get information about various items that I was trying to repair.
It is a great resource and I thank those who make this site what it is.
EdLeave a comment:
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