LifePak PIP-Trouble ShootingWARNINGSHOCK HAZARD. High voltages up to 1000v may be present on the leads of R302 and R306. Use an insulated screwdriver for adjustment. 3. Press ON. Adjust R302, Master Brightness (CUTOFF), until the vertical raster lines are visible behind the characters. 4. Turn R106, Horizontal Hold (FRAME HOLD), approximately 1/8 turn past the point where the horizontal rolling stops. 5. Access the Test Menu (turn power off, then press ON while pressing and holding down LEAD SELECT and SYNC until the Test Menu is displayed). 6. Press ECG SIZE to scroll to the DISPLAY test, then press SYNC to start the test. 7. Press ECG SIZE to select the PATTERN test. 8. Adjust: R224, Vertical Size (SCAN SIZE); L201, Linearity (SCAN LIN); and R111, Horizontal Height (FRAME HEIGHT), to obtain a display pattern that fills most of the screen. 9. Loosen the screw holding the yoke clamp. 10. Rotate the yoke until the display pattern is level. 11. Tighten the screw on the yoke clamp and confirm that the display pattern is still level. 12. Adjust the yoke rings to center the display pattern on the CRT. 13. Adjust R224 for a display pattern grid height of 73 ±2mm. Adjust L201 to make each box of the display pattern approximately the same height. NOTE:The adjustments of R224 and L201 are interactive. Repeat the preceding step until both measurements are correct. 14. Turn R402, video Gain (VID GAIN), fully counterclockwise. 15. Turn the defibrillator/monitor off and allow the CRT to cool down for approximately 10 minutes. Then, access the Test Menu and select the DISPLAY: PATTERN test. |