21H-FV5RU
CONVERGENCE ADJUSTMENTH-VCO, VIF-VCO & S-TRAP fo ADJUSTMENT
No. Adjustment pointAdjustment condition/procedureWaveform or others
No. Adjustment pointAdjustment condition/procedureWaveform or others
1
1CONVERGENCE1. Receive the "Crosshatch Pattern" signal.H-VCO ADJ2(MANUAL ADJ)
ADJ.2. Using the remote controller, call NORMAL mode.BGR(IC BUS1) In No signal (RASTER) condition.
CONTROL)2) Go to service mode, choose service data V03.
( To be done
after the purityStatic convergenceB(AUTO &3) Connect oscilloscope to IC801 pin11, adj V03 until
MANUAL ADJ)freq become 15.625 ? 0.15 KHz
adjustment.)1. Turn the 4-pole magnet to a proper opening an-G
R(Auto Adj)
gle in order to superpose the blue and red col-
1) In No signal (RASTER) condition.
ours.
2) Go to service mode.
2. Turn the 6-pole magnet to a proper opening an-Fig. a
3) Choose service data V03, by pressing R/C Auto
gle in order to superpose the green colour overRGB(Hex C1) key, OSD will appear OOK� at screen.
the blue and red colours.
4) If appear ONG� pls repeat step 3.
R
Dynamic convergence
G
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
Fig. b
the deflection coil upward.
b) Fig. b: Drive the wedge at point "b" and "c" andRGB2VIF-VCO ADJ(Manual ADJ)2Note: This adjustment must be
B(IC BUS1) In No signal (RASTER) condition.done after aging at least 3
swing the deflection coil downward.GCONTROL)2) Go to service mode, choose service data V02.minutes.
c) Fig. c: Drive the "c" wedge deeper and swingR
(AUTO &3) Connect oscilloscope to IC801 pin2, adj V02 until
the deflection coil rightward.
MANUAL ADJ)voltage become 2.5 ? 1 V.
d) Fig. d: Drive the "b" wedge deeper and swing
(Auto Adj)
the deflection coil leftward.
1) In No signal (RASTER) condition.
2. Fix all the wedges on the CRT and apply glassFig. c
2) Go to service mode, choose service data V02.
tape over them.BGR
R3) Press the R/C Auto (Hex C1) key, OSD will appear
3. Apply lacquer to the deflection yoke lock screw,
GOOK� at screen.
magnet unit (purity, 4-pole, 6-pole magnets) and
B4) If appear ONG� pls repeat step 3.
10magnet 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"3S-TRAP fo(Manual ADJ)
4-pole magnet
ADJ1) In No signal (RASTER) condition.
6-pole magnet(I2C BUS2) Go to service mode, choose service data V21.
About About
CRT neck100Deg100DegCONTROL)3) Connect oscilloscope to TP 801, adj V21 until
(AUTO &voltage become Min (below 5 V).
LacquerMANUAL ADJ)4) After that pls adj serV20 & vice data V24 same as
OV21�, V22 to OV21-1�, V23 to OV21+2�.
(Auto Adj)
WedgeWedge
1) In No signal (RASTER) condition.
Lacquer20mm"b""c"
Purity magnet2) Go to service mode, choose service data V21.
3) Press the R/C Auto (Hex C1) key, OSD will appear
OOK� at screen.
4) If appear ONG� pls repeat step 3.
10-110-2 |
ACEC
