Panasonic TX-21AD2, Service Manual

Page: 7 / 27

TX-21AD2
7
Alignment Settings
(The figures used below are nominal and used for representative purposes only)
Alignment Function TX-21AD2 Settings / Special features
1. Vertical amplitude V-AMP
063
Optimum setting
2. Vertical symmetry V-SYM
002
Optimum setting
3. Vertical linearity V-LIN
-020
Optimum setting
4. Vert. D.C. Vert. D.C.
000
No Adjustment
5. V-Pos. V. Pos
005
Optimum setting
6. Horizontal amplitude H-AMP
-044
Optimum setting
7. Horizontal position H-POS
542
Optimum setting
8. Text Position TEXT POSITION
049
Optimum setting
9. EW-amplitude E-W AMP 1
-059
Optimum setting
10. EW-amplitude E-W AMP 2
044
Optimum setting
11. Trapezium-comp TRAPEZ 1
000
Optimum setting
12. Trapezium- comp TRAPEZ 2
-009
Optimum setting
13. Colour VCO Colour VCO
006
Press either Blue or Yellow buttons to effect
automatic adjustment
14. Cut-off DC Cut-off DC
050
No Adjustment
15. Ug2 Test
Ug 2 Test
094 044 020
Select Cutoff DC in Service Mode mode and
confirm the value is 128. Select Ug 2 Test noting
colour with largest value, adjust on FBT until a
colour reaches 20 ~ 30. Connect an
oscilloscope to the cathode of the biggest value
colour, select Cutoff DC mode and adjust get
Cutoff pulse voltage to 159_5V. Disconnect the
oscilloscope and adjust the screen to whichever
colour reaches 70_30 first.
16. Cutoff Cutoff
057 064 056
Press the GREEN button to step through the
settings. Adjust for optimum.
17. White White
200 255 246
Press the GREEN button to step through the
settings. Adjust for optimum.