Panasonic BT-M2090Y Service Manual page 43

Item
Dynamic
(perimeter)
convergence
adjustment
After
completing
convergence
adjustment
Test equipment Test points
Adjustment
locations
Signal Wedges
generator( crosshat
Deflection yoke
ch)
Front
RED GREEN BLUE
-
..
'
JI-' _.-~
BLUE .. ;;f ~,,, RED
GREEN ... ,,,-· :.....----+---.---GREEN
RED
~ ~
·. BLUE
.,
~-: '<'
BLUE. GREEN RED
Arrow directions wheri yoke is tilted
upward
(opposite directions when tilted
downward)
(Fig. 7)
Double sided tape
Adhesive
Wedges
Magnet lock
-43-
1.
2.
3.
.., I IWI .. VV'V I
Adjustment procedure
Supply a crosshatch pattern input.
Remove the wedge temporarily securing the
deflection yoke.
Wobble the deflection yoke vertically and set
the convergence deviation as indicated in
Fig.7.Again temporarily secure by inserting a
wedge at the top.
4. Wobble the deflection yoke left and right and
set the convergence deviation as indicated in
Fig.8.
5. Alternately repeat steps 2 and 3 and adjust for
minimum convergence deviation.
Front
GREEN
GREEN BLUE BLUE
I
RED
RET-D--,1 ./
+
~
~/
RED
-.- :--------.,. GREEN
,
..
,
....................
,
.....
'
1 : .. : I
BLUE
I
O
I
~· :-+ ~: , ..
I · ' I
I :
+ :
I
BLUE
... , .. ; ................. z
·I··/
\...J- -;---------~
f-t...J, GREEN
~
• .. • l.J-'
RED
Arrow directions when yoke is tilted
rightward
(opposite directions when tilted
leftward)
(Fig.8)
1. Insert the wedges as shown in Fig.9.
Anode ~ap
~
aoo
Wedge
-f------r!J
120~ ~20°
Securing with 3 wedges
(Fig.9)
Note: Double sided tape is applied to the
wedges.Peel off the covering to
secure.Do not reuse old wedges, replace
them.
Wedge part number: CE40764-00A
2. Tighten the deflection yoke securing screw.
3. Apply adhesive to secure the 6 magnets as
indicated in Fig.1.