14Gt15 - Sharp 14GT15 Service Manual

CONVERGENCE ADJUSTMENT
No. Adjusting point
1 CONVERGENC 1. Receive the "Crosshatch Pattern" signal.
ADJ. 2. Using the remote controller, call NORMAL mode.
( To be done
after the purity STATIC CONVERGENCE
adjustment. 1. Turn the 4-pole magnet to a proper opening an-
2. Turn the 6-pole magnet to a proper opening an-
DYNAMIC CONVERGENCE
1. Adjust the convergence on the fringes of the
2. Fix all the wedges on the CRT and apply glass
3. Apply lacquer to the deflection yoke lock screw,
Adjusting procedure/conditions
gle in order to superpose the blue and red col-
ours.
gle in order to superpose the green colour over
the blue and red colours.
screen in the following steps.
a) Fig. 5-1: Drive the wedge at point "a" and swing
the deflection coil upward.
b) Fig. 5-2: Drive the wedge at points "b" and "c"
and swing the deflection coil downward.
c) Fig. 5-3: Drive the "c" wedge deeper and swing
the deflection coil rightward.
d) Fig. 5-4: Drive the "b" wedge deeper and swing
the deflection coil leftward.
tape over them.
magnet unit (purity, 4-pole, 6-pole magnets) and
magnet unit lock screw.
Finally received the Red-only and Blue-only sig-
nals to make sure there is no other colours on the
screen.
About
100
Wedge
"b"
Purity magnet
13
Waveform and others
BGR
B
G
R
Fig. 5-1
RGB
R
G
B
Fig. 5-2
RGB
B
G
R
Fig. 5-3
BGR
R
G
B
Fig. 5-4
Wedge "a"
About
100
Lacquer
Wedge
"c"
4-pole magnet
6-pole magnet
CRT neck
40cm
Lacquer

14GT15

14GT20