Deflection Yoke Neck Rotation Adjustment; Adjustment - Sony Trinitron PVM-1353 Service Manual

i
\_
5. For VMC, use the 6-pole magnet to adjust the R and B dots to
be symmetrical above and below the G dot. (*2)
*2:
R
G
B
Top section
• FIX
-----1s
?b5.,~,m
,od_,__ion
6-pole magnet
The VMC adjustment does
not change the opening of
the 6-pole magnet, but turns
it left and right.
24 Adjust so that the displacement
up and down are the same.
6. Adjust by repeating the adjustments in Items 2 through 5. (*3)
*3: The above adjustment may affect the landing, so after
this adjustment, check the landing again.
7. After the adjustment is complete, paint on the knobs to lock
them.
V. STAT magnet
purity
BMC magnet
3-6. DEFLECTION YOKE NECK ROTATION
ADJUSTMENT
If there is misconvergence at both sides on the X or Y axis of the
screen, tum the neck of the deflection yoke in the direction of the
arrow to reduce the misconvergence for the entire CRT screen to
within the tolerance.
I. Reverse misconvergence pattern
Tum the deflection yoke neck down.
B
o ..
G •... ::
0 •.•.
R
<?~ 9
...
... ...
...
... . . .
oeo
B GR
R
G
B
PVM-1353MD/1453MD
Positive misconvergence pattern
Tum the deflection yoke neck up.
Bo.
G •. _:::
o--··
R
oeo
.
'
.
... ... ...
...
.
.
.
.
'
.
.
.
.
oeo
B GR
•• 0
::::·~
R
G
B
Pattern when deflection yoke too far to the left
R R
As viewed from the CRT
screen, tum the deflection
R B
BR
yoke neck to the right.
t
X
t
2zoen
+-
y
L
L
H H
BR
RB
Pattern when deflection yoke too far to the right
2. Insert the three wedges in the deflection yoke and CRT funnel
surface to fasten the deflection yoke.
•
14" Wedge positions
20· Wedge positions
-33-