Crt Alphanumeric Alignment - HP 3585A Service Manual

Adjustments
Reference Voltage R 7 2
Alpha Offset
R 1 4
1
�
1 1 'i'
1 1
� � �
I
-C43-
�
-C 37-
- C44-
-C4O-
5· 1 2. CRT Alphanumeric Alignment
a. Be sure test jumper A63J3 is in the "T" position.
Refer to Figure 5-15 for pictures of the e f fect of Alphanumeric
Ad justment.
b. Adjust A64R 14 (A OFS) so that the second line of alphanumeric characters is about
1 14 of one character height above the top graticule line.
c. Adjust A64R 16 (Y gain) so that the third line of alphanumeric characters is 1 14 of one
character height below the bottom graticule line.
d. Adjust A64Rl (X gain) so that the last alphanumeric character is the same distance
from the right-hand edge of the trace as the first alphanumeric character is from the left­
hand edge of the trace.
e. Move the test jumper A63J3 to the
alphanumeric adjustments.
5-1 8
Line Drawer Offset
Compensation
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Figure 5· 1 4. Analog Display Driver Board (A64)
NOTE
"
R 4 8
, ,
.,,,,
N N
I
u u
I ' :;
S
'(
tl
l
I
"
N position. This completes the graphics and
Model 3585A
Gain R 1
Line Drawer
Gain R 6 2