21J-FV1RU
3. CONVERGENCE ADJUSTMENT
No.Adjustment pointAdjustment procedure/conditionsWaveform and others
1CONVERGENCE1. Receive the "Crosshatch Pattern" signal.
ADJ.2. Using the remote controller, call NORMAL mode.BGR
(Tobedone
after the purityStatic convergenceB
adjustment.)1. Turn the 4-pole magnet to a proper opening an-G
R
gle in order to superpose the blue and red col-
ours.
2. Turn the 6-pole magnet to a proper opening an-Fig. a
gle in order to superpose the green colour overRGB
the blue and red colours.
R
Dynamic convergenceG
1. Adjust the convergence on the fringes of theB
screen in the following steps.
a) Fig. a: Drive the wedge at point "a" and swing
the deflection coil upward.Fig. b
b) Fig. b: Drive the wedge at point "b" and "c" andRGB
B
swing the deflection coil downward.G
c) Fig. c: Drive the "c" wedge deeper and swingR
the deflection coil rightward.
d) Fig. d: Drive the "b" wedge deeper and swing
the deflection coil leftward.
2. Fix all the wedges on the CRT and apply glassFig. c
tape over them.BGR
3. Apply lacquer to the deflection yoke lock screw,R
G
magnet unit (purity, 4-pole, 6-pole magnets) and
B
magnet unit lock screw.
Finally received the Red-only and Blue-only sig-
nals to make sure there is no other colours on theFig. d
screen.
Wedge "a"
4-pole magnet
6-pole magnet
AboutAbout
CRT neck100Deg100Deg
Lacquer
WedgeWedge
Lacquer20mm"b""c"
Purity magnet
3 - 16 |
ACEC
