IBM 5280 Manual page 135

A A A
D E F
888
DATA ENTRY t-1AP
MSR
PAGE 9 OF 14
059
Use MIM 787 to trace the
'+
Photocell MSR B' (remote)
line for opens or grounds.
- - - - OR - -
- Defective MSR card (A-Bl)
(MIM 501, 773).
060
GO TO THE 5281 OR 5282 DATA
STATION MAP 1030, ENTRY POINT
A.
061
Insert the test card into the
reader, leaving it
approximately in the center of
the slot.
Probe
A-Bl-TP-04, '+ Photocell
M S R B'
( r
em
0
t e ) ( M I M 773
t
787).
Up light: On
Down light: Off
Are the lights .correct?
Y N
1
o
A A
G H
A
H
MAP 1030-9
062
Power O-ff.
- Unplug the connector from JI03
of the cable connector panel
- Set the CE meter to the RXl
scale.
- Measure the resistance from the
back panel connector (JI03) pin
18,
'+
Photocell MSR
B'
(remote)
t
to frame ground (t-1IM
787) .
The meter should read in the
range of 50 to 100 ohms.
Is the meter reading within the
required range?
Y N
063
064
- GO
Use MIM 787 to trace the
'+
Photocell MSR B' (remote)
line for opens or grounds.
- - - - OR
Defective MSR card (A-Bl)
(MIM 501, 773) .
TO THE 5281
OR 5282 DATA
STATION MAP 1030, ENTRY POI NT
A.
EC839787 PEC839661
MAP 1030-9