IBM 5100 - Page 100

E
2
DISPLAY MAP
PAGE
8
OF 10
076
-Probe J2-J05 ( ... C2 PWRD).
Are both lights on 7
Y N
077
Is the DOWN light on?
Y N
078
Defective G2 (controller) card.
Defective
F2 (base I/O) card.
079
-Remove the A2 (I/O cable driver) if it is
installed.
Are both lights on?
Y N
080
-Remove the E2 (ROS adapter) card.
Are both lights on 7
Y N
081
-Reinstall A2 and E2.
Defective J2 (display) card.
Defective
F2 (base I/O) card.
Defective G2 (controller) card,
082
-Reinstall A2.
Defective
E2 (ROS adapter) card.
083
Defective A2 (I/O cable driver) card and cable
assembly.
Defective printer B 1 A2 (adapter) card.
084
Defective J2 (display) card.
D
2
MAP 05Q()...8
085
(Entry Point B)
Check closely --- is the machine CRT filament
glowing (observe through the glass at the
socket end of the CRT)?
Y N
9
~
086
-Calibrate the CE meter (refer to 270).
-Measure +12 vdc from J6-E04
to J6-C02
(gnd).
(refer
to 241 display Z3 socket locations) .
. Is the voltage in tolerance (+11.0 vdc to
+13.2 vdc)?
Y N
087
-Disconnect the cable from Z3.
(refer
to 209.)
Is the voltage in tolerance (+11.0 vdc to
+13.2 vdc)7
Y N
088
-Connect the Z3 (display and control
panel) cable.
Go to MAP 0700, Entry Point A.
089
Defective display assembly.
Check/ replace display and control panel
cable (refer
to 210, 241).
090
Defective display assembly.
Check/ replace display and control panel cable
(refer
,to 210, 241).
28SEP76
PN 1608389
EC 829670 PEC 828851
MAP 0500-8
o
c