The red wire to the left of the flyback in your picture is the fixed G
2 supply.
Check the G 1 voltage at the CRT socket, it should be marked. It should

be about - 40 volts dc, it is likely gone to about - 80 volts dc. Try a
resistor
from the G 1 connection to ground...about 47 kohms, up to about 100 k
ohms. If you have no info on a certain monitor, this modification can
bring
your monitor close to a reasonable brightness range, with good results.
Hope this helps, Dani.




Martik wrote:
Samsung 750s approx 5 yrs old, text is ok but video and jpg's are too dark.
There are two adjusting 'screws' on the transformer but BOTH are for focus.
The only other adjusting screws I can find are on the neck marked Yv Yh Yhc.

Here is a pic of the 2 adjusting screws on the transformer. The one on top
cannot be turned.

http://www3.telus.net/shared/Monx.jpg