Sony TRINITRON GDM-1601 Service Manual page 30

Final check
After the adjustments have been completed, face the set
in all direction, (North, South, East and West) and check
whether there is no uneven color in any direction. This
test have to be done with full flat field of RGB each color.
Check that the picture is not tilted.
2-6. Convergence Adjustment
If you use the CRT of FRU provided by SONY, you
adjust described in the item 5), 6).
I) Receive a white hatch signal.
2) Check the BNC.
3) Deflect the DY while achieving a balance of the entire
picture.
4) Fix the DY with three DY spacers.
DYspacer
Fig. 2-6-1
5) Operate the H STAT VR and adjust the convergence
in a horizontal direction in the picture center.
6) Adjust the convergence in a vertical direction operat-
ing the V STAT VR (RVI, 2, and 3) on the L board.
7) Adjust the V convergence on the X axis by the
reactor on the right side seen from the CRT.
(See Fig. 2-6-2, 2-6-3)
4-4
Marking~
Core
Bwrew Crerow
~ ~)
A
~row' ~
Core
,-
B screw
Fig. 2-6-2
(a) XBV positive balance correction
Set the N pole (white paint mark)
on the core on the Screw B side and
rotate the Screw A.
(b) XBV negative balance correction
Set the N pole (white paint mark)
on the core on the Screw C side and
rotate the Screw A.
(c) XCV positive balance correction
Rotate the Screw B so that the coil
can move forward.
(d)
XCV negative balance correction
Rotate the Screw C so that the coil
can move forward.
Fig. 2-6-3