Service Adjustments - Hitachi 50gx49b Service Manual

SERVICE ADJUSTMENTS
1. ASSEMBLED P.W.B. ADJUSTMENT .....................................................
.18
l-l. Memory Initialization
............................................................
.18
l-2. Comb Filter Operation Check .....................................................
.18
l-3. Sub Picture (PIP) Position Adjustment
..............................................
.18
2. FINAL ASSEMBLY ADJUSTMENT ......................................................
.19
2-1.
2-2.
2-3.
2-4.
2-5.
2-6
2-7.
2-8.
2-9.
2-10.
2-11.
2-12.
2-13.
2-14.
FocusAdjustment...............................................................l 9
White Balance Adjustment .......................................................
.20
Sub Brightness Adjustment ......................................................
.20
Sub Picture White Balance Adjustment
..............................................
.21
SP Matrix Check .............................................................
..2 1
Raster Inclination Adjustment (Deflection Yoke) ........................................
.21
Raster Position Adjustment
.......................................................
.22
Vertical Size Adjustment (R630) ...................................................
.22
Horizontal Size Adjustment (R603)
.................................................
.23
BeamAlignment................................................................2 3
Beam Shape Adjustment .......................................................
..2 3
Static Focus Adjustment .........................................................
.24
Blue Defocus Adjustment
........................................................
.24
Digital Convergence Adjustment ...................................................
.24
2-14-1. Phase Adjustment (service mode)
.......................................
.25
2-l 4-2. Raster Position Adjustment ............................................
.25
2-14-3. Convergence Point Adjustment .........................................
.26
2-l
d-4
Digital Convergence Remote Control .....................................
.26
3. ADJUSTMENT POINT ................................................................
.27
3-1. CRT (R)(G)(B), Cabinet Locations ...................................................
.27
3-2. Main Chassis (Signal P.W.B.) .......................................................
.28
3-3. Main Chassis (Power/Deflection
P.W.B.) ...............................................
.29
3-4. CPT (R)(G)(B), Focus Pack, Control P.W.B. ............................................ .30
17