HP 4278A - Page 56

8. Set A7S3-6 to the right-most position (ON) to disable the 4278A's STORE function (to
write-protect memory cards). Set A753-6 to the left-most position (OFF) to enable
storing. Refer to Figure 3-9.
NOTE
Do not change any of the other switch settings on the A7 board.
\-----.1
A7 Olgitol Control Board
Component Side
Write Enoble.—
° (1....D I
F
F ED 2
(CD 3
(0)4
(CD 5
(CD 6
CD 7
(ED 8
A 753
..--
--4.Write Protect
Figure 3-9. Write Protect Switch
3-17