IBM 5110 Series Maintenance Analysis Procedures page 106

A
G
7
BRING UP MAP
PAGE 8 OF 23
(Step 074 continued)
Is the machine at halt H?
Y N
075
The bad card is now at M2.
076
Is the recorded RFLO between or including
0000 and 3FFF?
Y N
077
Bad L2 (exec ROS) card (see MAP 050 for
jumpering).
Bad J2 (processor) card (see MAP 050 for
jumpering).
078
The bad card is now at M2.
079
(Entry Point N)
-Power down.
-Swap M2 and M4
- Power up. Wait 25 seconds.
-Switch the DISPLAY REGISTERS switch to
DISPLAY REGISTERS.
- Record RFLO.
(See DISPLAY REGISTERS in the Diagnostic
Aids section in the MIM).
-Switch the DISPLAY REGISTERS switch to
NORMAL.
Is the recorded RFLO between or including
4000 and 7FFF1
Y N
A
L
080
Bad L2 (exec ROS) card (see MAP 050 for
jumpering).
Bad J2 (processor) card (see MAP 050 for
jumpering).
Bad G2 (display) card (see MAP 050 for
jumpering).
A A
C L
6
MAP 0400-8
081
The bad card is now at M4.
082
Is the recorded RFLO between or including
0000 and 3FFF1
Y N
083
Is the recorded RFLO between or including
4000 and 7FFF?
Y N
084
Is the recorded RFLO between or
including 8000 and BFFF?
Y N
085
Is the recorded RFLO between or
including COOO and FFFF1
Y N
086
Bad L2 (exec ROS) card (see MAP
050 for jumpering).
Bad J2 (processor) card (see MAP
050 for jumpering).
087
- Power down.
-Remove N2 and N4.
-Install N4 in the N2 location
- Power up. Wait 25 seconds.
-Switch the DISPLAY REGISTERS
switch to DISPLAY REGISTERS.
-Record RFLO.
(See DISPLAY REGISTERS in the
Diagnostic Aids section in the MIM).
-Switch the DISPLAY REGISTERS
switch to NORMAL.
Is the recorded RFLO between or
including 8000 and BFFF1
Y N
01JAN79
9 9 999
A A A A A
M N P
Q
R
EC 836600 PEC 835541
MAP 0400-8
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