Toshiba 28ZH46P Service Manual page 5

(5)Adjust the sub-4-pole magnets only in case there is any deviation of Xv bow-shaped convergence. (To be usually set at
the initial position)
Align both sides with the sub-4-pole magnets and minimize the deviation of blue and red with the main 4-pole magnets.
blue
red
Main 4-pole magnet
■ CIRCUMFERENCE CONVERGENCE:
Perform correction in the following manner.
*
A
blue
B green
red
C
(Parts code:23 948 274) TC-S
S
N
Blue color or blue mark
Adjust VR 1 and minimize the deviation of YH. *Only 27", 30" and 32".
green
Red
Red
green
Adjust VR 2 (YHC) and minimize the deviation of YH.
green
Red
blue
green
Adjust VR 3 (YV) and minimize the deviation of YV.
G
red/blue
blue
red
blue
green
red
D
(Insertion position of correction
piece)
E
F
*Insert the correction piece between the
picture tube and the deflection yoke.
Bonded surface
green
blue blue
blue blue
green
green
blue blue
Red
Red
green
Red
green
blue
blue
green
Red
red/blue
green
green
6-pole magnet
• Adjust coils and minimize deviation
(The 27" unit has coils underneath it)
D A
E B
F C
■ 30", 27", 32"
Red
Red
Red
■ 34"
blue
blue
green
Red
Red
green
blue
G
H
- 5 -
Xv bow-shaped deviation of convergence
blue
red
Sub-4-pole magnet
A
blue
B green
red
C
(Parts code:23 948 464)
N
S
VR3 VR2 VR1
YV YHC
27" (Part No. 23 947 371)
32", 30" (Part No. 23 947 121)
34" (Part No. 23 993 080)
Perform correction by inserting the
H
correction piece into the clear-
ance of terminal board coils of
the deflection yoke.
Note:
Perform insertion by turning the
metal side to the terminal board
side of the deflection yoke.
D
E
F
Bonded surface