Hitachi C47-WD8000 Service Manual page 31

SERVICE ADJUSTMENTS
(3) Turn the G deflection yoke and adjust the vertical raster inclination.
Ｌ≦ ±2mm
Ｌ
Vertical center axis of cross-hatch signal
(4) After GREEN raster was adjusted correctly, then fix DYs' screws.
(5) Then, remove the cover of R or B lens and project red or blue light and green light together on the screen.
(6) Turn the deflection yoke of R or B and set so that the inclination of R or B light with respect to the green light is
as shown below on the end sides.
G
(7) After the adjustment, fix the screw of each DY with a torque of 1.18 Nm(12kgfcm).
Apply to red DY and blue DY.
Ｌ1
<<Attention>>
After raster tilt adjustment,
gap of DY & PRT funnel should be zero.
Ｌ2
31
Apply to green DY.
This line is GEOMETRIC
CENTER of PTV screen.
Ｌ1, Ｌ2≦±2mm
R or B