Samsung Box Problem

Stuartbe · 18-04-2005, 09:26

Hi All....

Quick question for you !

I have been out to a customers home as she was having problems with her Pioneer plasma screen. The tv sometimes wont come out of standby and the image has ghosting on it. I checked the output on the scart pins and found that the video feed is at 3.8v instead of the usual 1.5v p2p

Has anyone come across these samsung boxes creating problems by having high voltages on the scart output ????

On friday I disconected the scart from the NTL box and this problem has not happened again so it must be something to do with the samsung box !!!

Ideas anyone ?

spiderplant · 18-04-2005, 18:53

Which pins did you measure the voltage on?

I'll check some boxes and maybe speak to the Samsung engineers tomorrow.

Stuartbe · 18-04-2005, 20:23

Quote:

Originally Posted by spiderplant

Which pins did you measure the voltage on?

I'll check some boxes and maybe speak to the Samsung engineers tomorrow.

Thanks m8

19, 7, 11, 15

19 had the highest voltage at 3.8v

Seems a little high !!!

Stuartbe · 19-04-2005, 09:32

My customer has just phoned me up and told me about the conversation she had with NTL. They have informed her that this is a known problem and that many plasma screens will not work with samsung boxes due to the high output on the composite video.

Indeed since disconecting the scart the customers set is working perfectly.

Has anyone ever come across an atenuator for composite video/scart connections ?

The only other option I can think of is pasing the connection from the samsung box via a vcr ect.....

If what my customer has been told is true then this is a very bad situation as many people are purchasing plasma type tv's. One would question why NTL would purchase many thousands of boxes that have this problem. Did they not field test any of these boxes first ??????????????????

Stuart · 19-04-2005, 10:13

Quote:

Originally Posted by Stuartbe

My customer has just phoned me up and told me about the conversation she had with NTL. They have informed her that this is a known problem and that many plasma screens will not work with samsung boxes due to the high output on the composite video.

Well, I have to admit, I have no problems. Although I have a standard CRT TV (28inch Sony Wega Widescreen), and the box is connected via RGB Scart and a Tivo (with RGB Scart in and out), neither my Tivo or TV appear to have problems (when the Engineer first connected the Sammy, he disconnected the Tivo from the system totally so the connection went from box to TV).

Not sure why Plasmas should be any more sensitive than CRTs to voltage levels.

As a work around, have you tried RGB (which should give a better picture anyway)? The Samsung does have RGB out, and the Plasma will have an RGB in (whether it's available or not is another matter).

Stuartbe · 19-04-2005, 10:19

Quote:

Originally Posted by scastle

Well, I have to admit, I have no problems. Although I have a standard CRT TV (28inch Sony Wega Widescreen), and the box is connected via RGB Scart and a Tivo (with RGB Scart in and out), neither my Tivo or TV appear to have problems (when the Engineer first connected the Sammy, he disconnected the Tivo from the system totally so the connection went from box to TV).

Not sure why Plasmas should be any more sensitive than CRTs to voltage levels.

As a work around, have you tried RGB (which should give a better picture anyway)? The Samsung does have RGB out, and the Plasma will have an RGB in (whether it's available or not is another matter).

I am not sure why they would be more sensitive to voltages myself but this tv simply wont work with the Samsung box connected. The manufacturer has confirmed that the tv will not come out of standby if there is exesive voltage on any input.

Ref RGB... It is allready set-up for RGB. The three cores allso display this overvoltage problem. This problem happens in composite mode as well as RGB mode......