Hitachi 53SWX10B, Service Manual

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SERVICE ADJUSTMENTS
1. ASSEMBLED P.W.B ADJUSTMENT..................................................................................................................30
1-1. Service Menu Access (NTSC, SDTV and HDTV) ..................................................................................30
1-2. Comb Filter Operation Check ................................................................................................................38
1-3. Video Settings Check..............................................................................................................................38
1-3-1. Perfect Picture Check ..................................................................................................................38
1-3-2. Auto Color Check..........................................................................................................................38
1-3-3. Noise Reduction Check ................................................................................................................38
1-3-4. Color Temperature Check ............................................................................................................38
1-3-5. Velocity Modulation Check ..........................................................................................................38
1-3-6. Black Level Expansion Check ......................................................................................................38
1-4. High Voltage Adjustment ........................................................................................................................39
2. FINAL ASSEMBLY ADJUSTMENT (Adjustment should be according to below order) ..............................39
2-1. Cut Off Adjustment ..................................................................................................................................39
2-2. DCU Phase Data Setting ......................................................................................................................39
2-3. Horizontal Position Adjustment (Coarse) ................................................................................................40
2-4. Raster Tilt (Deflection Yoke)....................................................................................................................40
2-5. Beam Alignment ......................................................................................................................................40
2-6. Raster Position........................................................................................................................................41
2-7. Vertical Size ..........................................................................................................................................41
2-8. Horizontal Size ......................................................................................................................................41
2-9. Beam Form ............................................................................................................................................42
2-10. Lens Focus..............................................................................................................................................42
2-11. Static Focus ............................................................................................................................................44
2-12. Digital Convergence ..............................................................................................................................44
2-12-1. Magic Focus Character Set Up (updated 4/9/03) ......................................................................45
2-12-2. Magic Focus Pattern Set Up (updated 4/9/03) ..........................................................................46
2-12-3. Convergence Jig Screen Specification ......................................................................................47
2-12-4. Raster Position Adjsutment ........................................................................................................48
2-12-5. Convergence Point Adjustment ..................................................................................................48
2-13. Blue Defocus ..........................................................................................................................................50
2-14. White Balance ........................................................................................................................................50
2-15. Sub Brightness........................................................................................................................................51
2-16. Sub-Picture Signal Amplitude Adjustment ..............................................................................................53
2-17. Horizontal Position ................................................................................................................................54
2-18. Scanning Area Check ............................................................................................................................54
2-19. Raster Distortion Check ........................................................................................................................55
3. ADJUSTMENT POINT ........................................................................................................................................57
3-1. CRT (R)(G)(B), Cabinet Locations ..........................................................................................................58
3-2. Main Chassis (Signal P.W.B.) ................................................................................................................59
3-3. Main Chassis (Power/Deflection P.W.B.) ................................................................................................60
3-4. Power Supply P.W.B. ..............................................................................................................................61
3-5. CPT (R)(G)(B), Focus Pack, Control P.W.B. ..........................................................................................62
*IMPORTANT
For many of the above adjustments, it is necessary to have an HDTV (1080i or 720P) signal generator, SDTV
(480P) signal generator, as well as the usual NTSC (480i) signal generator.
Hitachi recognizes that few companies offer HDTV or SDTV signal generators and that the cost of these
generators is sometimes prohibitive. For this reason, we suggest the use of a set-top-box for HDTV and SDTV
adjustments. Usually, there is a switch on the set-top-box which enables it to output HDTV (1080i or 720P) or
SDTV (480P) signals even with no input. In this case, the sync is automatically detected by the TV (at the Y-P
B
P
R
Inputs on the rear panel).