Pioneer PRO-730HDI Service Manual page 99

5
2
Deflection Yoke Adjustment
2
Deflection Yoke Lean Adjustment
-1
• Input a stable signal (e.g. from an DVD / LD player or SG) to
Start
the INPUT 1 connector.
• MENU → SETUP → CONVERGENCE
→ ADJUSTMENT FOR 480P → ADJ MULTI-POINT
• 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 or main unit key.
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
Cross hatch
5
6
Deflection
yoke
Turn to adjust.
• 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.
• Apply an adhesive between the neck part of CRT and centering
magnet so that the centering magnet of the deflection yoke does
not move.
Deflection
yoke
PRO-730HDI
6
7
CRT SERVICE CRT SERVICE
Assy B Assy G
Deflection
Yoke (B)
B CRT G CRT R CRT
DRIVE Assy DRIVE Assy
DRIVE Assy
Centering magnet
(Turn in either direction until cross signal
becomes white.)
0 mm 0 mm
Centering magnet
(Turn in either direction until cross signal becomes white.)
7
8
A
CRT SERVICE
Assy R
Deflection
B
Yoke (G)
Deflection
Yoke (R)
C
D
E
F
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