HP 3585A Service Manual page 130

Adjustments
m . Move test j umper A64J l to the "N" position .
n . Adjust A64R62 (LD gain) for an overshoot condition (see Figure 5-1 3).
o . Adjust A64R62 so that the overshoot condition just disappears .
p . Adjust A67R59
and bottom pattern line are aligned with the vertical lines of the CRT graticule (see Figure
5 - 1 2).
q . Adjust A67R85 (Y position) and A67R80 (Y gain) so that the CRT graticule lines cut
through the upper and lower lines of the displayed pattern (see Figure 5- 1 2) .
r . Replace the A67 board . Replace the screws that hold the board t o the chassis and the
protective plastic cover over the board.
N o Oversh oot
Of Vertical Line
At This Poi n t
R e t r a c e L i n e
A n d B o t t o m
Line Should Be
Stra i g h t
Corn ers Do Nbt
O v e r s h o o t
G rati c u l e
5- 1 6
(X
position) and A67R54
Properly Adjusted CRT Display.
Verti c a l A l i g n ment With G raticule
Figure 5· 1 2 . CRT Test Pattern
(X
gain) so that the ends of the retrace line
F o r
L i n e
Model 3585A
Last R i g ht H a nd
C h a r a c t e r
Same D ista nce
From G raticule
Edge As Left
C h a ra cter
1 /4
Space of
C h a r a c t e r
H e i g h t A b ove
Retrace Line
Retrace Line
C o r n e r D o e s
Not ove rshoot
G rati c u l e
1 / 4
S p a c e Of
C h a r a c t e r
H eight