Riddled TV Repair Forum

norrih · Joined: 29 Dec 2008 Posts: 6 Location: paris

Dear all,

I made a big mistake by changing the service mode configuration : X-ray on
and now the tv starts only for 3 sec and then goes to off. it is impossible to go to the service menu. I am thinking about changing the eeprom to a blank one , do you think that this will solve my problem ? is there another solution.

Thanks

Norrih

Google

Jesse Mack · Joined: 22 May 2008 Posts: 600 Location: The Last Frontier

Try this,

2. Enter the Service Mode by pressing the remote control keys in the following sequence:
Power ON -- Power Off Info Menu Mute Power On

Since you are powering the unit off you should be able to catch the power off command within the 3 second time frame of powering the set on. If you power the unit off before the x-ray protect engages you should be able to complete the sequence. Remember, you do not have to enter the complete sequence before the set shuts off, only the power off command.

Jesse

norrih · Joined: 29 Dec 2008 Posts: 6 Location: paris

this is approximatively what i have on the tv

during 3sec of powering :
-2.5 sec of blue screen

- 0.5 sec of the service menu and then auto power down

according to your explanation this is what i've tried

I've tried to power off during the first 2 second -> no effect
it goes to off after displaying service menu

I've tried to power off duing the 0.5 second, it goes immediatly to off.

Is there a very precise timing ?

thanks

Jesse Mack · Joined: 22 May 2008 Posts: 600 Location: The Last Frontier

norrih · Joined: 29 Dec 2008 Posts: 6 Location: paris

Hi Jesse,

I 'll try again. If I cant make it work, do you think by changing the eeprom by a blank one will help ?

Wish you a Happy New year 2009

thanks again

Norrih

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Jesse Mack · Joined: 22 May 2008 Posts: 600 Location: The Last Frontier

I do not know if that would work as I know that some eeprom's come pre-programed by the manufacturer and some sets have a rom for the basic settings that will autoload a new eeprom. If you try this, (they are cheap) I would strongly advise getting the original from the manufacturer using the original part number thru a distributor.

Hope this helps.

Jesse

norrih · Joined: 29 Dec 2008 Posts: 6 Location: paris

Hi Jesse,

After several try I gave up, But now I am trying to reprogram the
eeprom,
I got some dump on the follwing site,

http://master-tv.com/proshivki/tv/Samsung-eeprom-memory-dump.html

My model is CS-29M16QQ

and they provide only for CS-29M16ZQQ and MGG.

Where do you think i could find the one for my model,
Do you think that there is a big diffrence between mine and those provided
ZQQ, MGG

thanks

Norrih

Jesse Mack · Joined: 22 May 2008 Posts: 600 Location: The Last Frontier

Without service literature for this model I cannot answer your question.
I see you live in Paris and are using the PAL system. If you have access to the eeprom data you also need a way to install the data in the eeprom. Such as a programmer. If you have the service literature simply disconnect the x-ray detect circuits from the flyback to stop the shutdown. I do not have a schematic so I cannot tell you what to disconnect.

Jesse