IBM 5110 Series Maintenance Analysis Procedures page 244

MACHINE CHECKOUT
PAGE 6 OF 13
050
(Entry Point F)
Does the machine have a BASIC/ APL switch
(see MIM 205)?
Y N
051
Go to Step 054, Entry Point B.
052
-Check the BASIC/ APL switch (see MIM 246).
Does the BASIC/ APL switch function
correctly?
Y N
053
Bad BASIC / APL switch.
Bad L2 (exec ROS) card (see MAP 050 for
jumpering).
Bad H2 (base I/O) card.
Check/replace Z3 (display and control panel)
cable (see MAP 0210 and MIM 248,249).
054
(Entry Point B)
-Press RESTART.
-Wait 25 seconds.
-Check the REVERSE DISPLAY switch (see MIM
242).
Does the REVERSE DISPLAY switch function
correctly?
Y N
s
055
Bad REVERSE DISPLAY switch.
Bad H2 (base I/O) card.
Bad G2 (display) card (see MAP 050 for
jumpering).
Check/ replace Z3 (display and control panel)
cable (see MAP 0210 and MIM 248,249).
s
MAP 0900-6
056
-Check the DISPLAY REGISTERS switch (see
MIM 243).
Does the DISPLAY REGISTERS switch
function correctly?
Y N
057
Bad DISPLAY REGISTERS switch.
Bad H2 (base I/O) card.
Bad G2 (display) card (see MAP 050 for
jumpering).
Check/ replace Z3 (display and control panel)
cable (see MAP 0210 and MIM 248,249).
If the machine still fails,
Go To Map 0500, Entry Point
A.
058
Do you want to check out the RUN or the
STEP switch?
Y N
1
059
(Entry Point E)
-Switch the DISPLAY REGISTERS switch to
NORMAL.
-Switch the RUN switch under the covers to
RUN.
-Check the L32-64-R32 switch (see MIM
244).
Does the L32-64-R32 switch function
correctly?
Y N
060
Bad L32-64- R32 switch.
Bad H2 (base I/O) card.
Bad G2 (display) card (see MAP 050 for
jumpering).
Check/ replace Z3 (display and control
panel) cable (see MAP 0210 and MIM
248,249).
01JAN79
3 7
T U
EC 836600 PEC 835541
MAP 0900-6
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