IBM 5280 Manual page 97

W
6
DATA ENTRY MAP
A-El DISPLAY
PAGE 7 OF 10
035
- Probe A-E4D04, 'IS MHz Clock'
(MIM 531).
11_
,~_L..L_
.... _
w~ "'~
•• , " .
V I I
Down light: On
Are the lights correct?
Y N
036
- Probe A-CSB03, '18 MHz Clock'
(MIM 531).
Up light: On
Down light: On
Are the lights correct?
Y N
037
The 'lS MHz Clock' line is
failing. Suspect a shorted
net. Use the net list (MIM
531) to isolate the
failure.
- -" - - - OR
- Failing Diskette/Main MPU
Card (A-Cl) (MIM 303).
If a 'ROS Patch' cable is
connected to the card,
GO TO t--1AP 0600,
ENTRY POINT A.
03S
- Failing Data Station Adapter
Card (A-El) (MIM 501).
x
MAP 1011-7
039
- Probe A-EIS02, '- POR' (MIM
531) •
up :i,-i gi-d;;
un
Down light: Off
Are the lights correct?
Y N
040
- Failing Diskette/Main
Card (A-Cl) (MIM 303).
MPU
- If a 'ROS Patch' cable is
connected to the card,
GO TO MAP 0600, ENTRY POINT A.
041
- Probe A-EIB02, '- POR' (MIM
531).
- Momentarily jumper the '- Test
POR' line at A-CI-TP-040 to
frame ground (MIM 303).
Up
Ii
ght: On
Down light: Pulses
Are the lights correct?
Y N
042
Failing Diskette/Main MPU
Card (A-Cl) (MIM 303).
If a 'ROS Patch' cable is
connected to the card,
GO TO MAP 0600, ENTRY POINT A.
043
- Failing Data Station Adapter
Car d (A- E 1)
(M
I M 501).
ECS40S74 PEC839787
X
MAP 1011-7