Re: Samsung Surveillance LCD

This does work like a PC monitor with a VGA input.
I tried using a flashlight, but the image seems to go away completely when the backlight dies.
I am not sure how old it is, I work for a diesel repair shop and the monitor was for my boss to keep an eye out in the shop.
I will see what happens when I swap some leads around...

Re: Samsung Surveillance LCD

I have not had much time to work on the monitor, but could I get a possible cost of repair? For example, will I need to replace the whole inverter board, or just the transformers? How much do CCFL's usually cost?

Re: Samsung Surveillance LCD



Yes, a new meter for sure!

as far as building test lamps, what is the best and cheapest way of doing this? I don't really want to invest my own money into something for work.

EDIT: just clicked on your link to using old cf lights.......

Re: Samsung Surveillance LCD

Also, here is a still of the monitor on power up... as best as I could do with a phone camera and a very short time frame...

It seems like the backlights flicker a bit, and the top right corner is brighter than the rest of the screen....

Re: Samsung Surveillance LCD

As for the meter, it is a bit old. It was a present to me when I was 5 or 6 (or at least as soon as I learned to do simple math), I am 24 now.

The board is N, GT-823, NY0915CB, BN44-00118F. selldoor, you were very close but here is a better picture as well....

Re: Samsung Surveillance LCD

Thanks for the replies.

Unfortunately I only have a simple volt/ohm/milliamp meter.

This is a project I took on for work, so when I get home I will take some better pictures for you guys to look at.

Hello all, new guy here attempting to fix a Samsung SMT-190DN Surveillance system. I did a search on this forum, and there are only 2 threads that involve this system. I was unable to find information on my issue. I replaced the Caps on the power board and checked all the +5V, +12V and +15V outputs, all good there. I was checking the resistance of the primary and secondary coils in the transformers for the CCFL's. I got no reading (> 1M Ohm) on the secondaries (High voltage side) and less than 1 Ohm on the Primary side (Low voltage side).

The monitor exhibits the 2 seconds then...

New Member

Hello from Colorado! Just a new guy here looking to get a bit better at simple electronics repair.