Used ICs: LM1246DKA – LM2470 – TDA4841 – NT68F63U – UC3842 [SMPS control] - 79AS763-A [FBT]
Factory preset Timings AdjustmentA. Press [1] Key to show OSD window press Up or Down Key to switch the functional controls.
B. Press the Up Key to select the "ZOOM" function, and then press the MENU Key. While do not release the MENU Key until the OSD window changed to the Factory preset window.
C. The Factory preset window contains the functional controls. Select one of the controls. Then press the Up/Down Key to adjust its value for the optimum picture.
Focus
Adjustment
A. Set mode 1024×768 Fv: 85Hz with character full page.
B. Adjust brightness to center and contrast to max.
C. Then adjust focus VR1 to a fine vertical line.
D. Adjust focus VR2 to a fine horizontal line.
E. Repeat step C & D
A. Set mode 1024×768 Fv: 85Hz with character full page.
B. Adjust brightness to center and contrast to max.
C. Then adjust focus VR1 to a fine vertical line.
D. Adjust focus VR2 to a fine horizontal line.
E. Repeat step C & D
Circuit diagram
Click on the schematic to zoom in
