Head Load And Door Interlock Switch - Control Data Corporation BR8 SERIES Hardware Maintenance Manual

o
(:J
b. -contd.
Test Point
No.
10
11
12
13
14
Refer to Fig.
No.
5-1
5-1
5-1
5-1
Comments
Stepper Steering Logic
Not for Field Use**
3/4 Cell Timing
Sector One-Shot
Index/ Sector
c. Signals should conform to Figure 5-1 and Figures 6-1 through 6-4.
SCOPE SETTING:
2v/div
2v/div
20v/div
20ms/div
I
I
'I
H~
'"""-
~+-++
I
--t---
DOOR INTLK, J5-{)4
-HEAD LOAD
HEAD LOAD SOLENOID,
J5-{)5
Figure 6-1. -Head Load and Door Interlock Switch
**A
Write Fault should occur when the FDD is Write Enabled and no Write Data is sent.
77834769-A 6-3