IBM 5280 Manual page 274

A A
G H
1 1
1 1
COMMUNICATIONS MAP
EIA WRAP ERROR MAP
PAGE 12 OF 12
072
The internal cable
de-fect i ve.
073
is
Probe the extra 'Transmitted'
line at probe point D.
Up light: On or Pulsing.
Down light: On or Pulsing.
Are the lights correct?
Y N
07
l
t
Defective communications MPU
card (A-E5)(MIM 811).
If a 'Ros Patch' cable is
connected to the card,
GO TO MAP 0600, ENTRY POINT A.
075
- Probe the extra 'Transmitted'
line at probe point C.
Up light: On or Pulsing.
Down light: On or Pulsing.
Are the lights correct?
Y N
076
The logic board is defective.
077
- Probe the extra 'Transmitted'
line at probe point B.
Up light: On or Pulsing.
Down light: On or Pulsing.
Are the lights correct?
Y N
A A
J
K
A A
J K
MAP 3019-12
078
The EIA line adapter card is
defective (A-D7)(MIM 823).
079
- Probe the extra 'Transmitted'
line at probe point A.
Up light: On or Pulsing.
Down light: On or Pulsing.
Are the lights correct?
Y N
080
The logic board ;s defective.
081
- Defective communications MPU
card (A-E5)(MIM 811).
If a 'Ros Patch' cable is
connected to the card,
GO TO MAP 0600, ENTRY POINT A.
EC840874 PEC8397S7
MAP 3019-12