Pioneer PRO-720HD Service Manual page 8

PRO-720HD, PRO-620HD, PRO-520HD
2
Deflection Yoke Adjustment
2
Deflection Yoke Lean Adjustment
-1
• Input a stable signal (e.g. from an LD player or SG) to
Start
the INPUT 1 connector.
• MENU → SETUP → Enter the MULTI-POINT (FULL) in
the CONVERGENCE.
• The cross hatch disappears if there is no operation with
the remote control unit for about 8 minutes. If the cross
hatch disappears, repeat the above operation with the
remote control unit.
Cross hatch
• Turn the deflection yoke of the replaced CRT so that the cross
hatch of the color corresponding to the replaced CRT converges
with that of the CRTs not replaced.
• When a CRT is replaced, check the position of the VM (Velocity
Modulation) yoke.
2
Screen Center Adjustment
-2
Start
190
Turn to adjust.
Cross hatch
CRT ASSY B
Deflection
Yoke (L3)
Deflection
yoke
B.CRT DRIVE
Assy
Centering magnet
(Turn in either direction until cross signal
becomes white.)
• Move the centering magnet of the deflection yoke for the
replaced color so that the horizontal and vertical lines at the
center of the screen align with the lines for a color not replaced.
• Secure the centering magnet from moving after adjustment is
finished.
Deflection
yoke
Centering magnet
(Turn in either direction until cross signal becomes white.)
Deflection
Deflection
Yoke (L2)
Yoke (L1)
CRT ASSY G
CRT ASSY R
R.CRT DRIVE
G.CRT DRIVE
Assy
Assy
0 mm 0 mm