7.3.11. PURITY ADJUSTMENT
Purpose:
To set the uniform white over the whole screen.
Symptom of Misadjustment:
The white screen will vary from area to area.
Test Point :
----------
Adjustment :
Pair of 4-Pole Convergence Magnet Rings,
Pair of 6-Pole Convergence Magnet Rings,
Pair of Purity Magnet Rings,
Deflection Yoke (CRT Unit),
G CUT -OFF (EVR)
Specification :
Refer to descriptions below.
INPUT :
Video Input Jack,
Crosshatch Pattern Signal,
White Pattern Signal
Mode :
STOP
Equipment :
Degaussing Coil,
NTSC Video Pattern Generator,
White Pattern Generator
1. Remove the wedges from the CRT.
2. Slide the Deflection Yoke forward to the end of the CRT neck.
(For model with 13 inch CRT)
Set the Convergence Yoke as specified.
73
Summary of Contents for OmniVision PV-Q1311
Page 9: ...Fig 1 4 Fig 1 5 9...
Page 23: ...5 2 IC TRANSISTOR AND CHIP PART INFORMATION 23...
Page 27: ...Fig D4 Fig D5 27...
Page 31: ...6 2 2 Inner Parts Location Fig J1 1 31...
Page 32: ...6 2 3 EJECT Position Confirmation Fig J1 2 32...
Page 33: ...6 2 4 Grounding Plate Unit Full Erase Head and Cylinder Unit Fig J2 1 33...
Page 84: ...84...
Page 88: ...11 2 MECHANISM BOTTOM SECTION 88...
Page 89: ...11 3 CASSETTE UP COMPARTMENT SECTION 89...
Page 90: ...11 4 CHASSIS FRAME SECTION 1 90...
Page 91: ...11 5 CHASSIS FRAME SECTION 2 91...
Page 93: ...Model PV C2011 PV C2021 PV C2031W VV 2001 PV C2061 93...
Page 111: ...R4591 ERDS2TJ681T CARBON 1 4W 680 111...
Page 113: ...R6009 ERJ6GEYJ102V MGF CHIP 1 10W 1K 113...
Page 135: ...R6032 ERJ6GEYJ102V MGF CHIP 1 10W 1K 135...