TAS 200 Series Adjustment Procedures
28
Handheld and Benchtop Instruments Basic Service
3. Rotate the front panel HORIZONTAL POSITION control to move the dot to
the display center. Rotate the INTENSITY control to give the dot a sharp
edge.
4. Adjust VR604 on the Power and High Voltage board and the oscilloscope
front panel FOCUS control until the dot becomes circular. See Figure 7 for
the adjustment location.
5. Set the front panel HORIZONTAL X-Y push switch to the out position.
6. Repeat steps 1 through 5 for best performance.