I have a 'Horizon' 17' monitor and the problem is that it have not focus.I tried change the screen,the video module and the flyback transformer from a same type monitor wich is normaly,the focus problep persists; All the signals and and potentials at the pins of the tube are normal: The R,G,B signals are o.k. ;the two focus potentials are adjustable ; the UG2 are adjustable too;Te UG1 is o.k. and the monitor is completly withoot focus.Is enybody find a same problem ? what is the solution ?
Alpar Biro |