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Main Store Ripple Test wr:is Successful
Mein Store /\,\ode - Hqrdcore Tesh
Initially, set the following;
Disob1e
interval timer
Di1able ROS retry (jumper 01C-E3C4Dll
to
008)
Mount
FLT
tape-
I
Check contr.,I sv. itch
to
qop
FLT control switch to STOP AFTER LOAD
Fl T mode switch to LOAD
----------~
(FOf single-cycle operation, set rote switch to
SINGLE CYCLE
and
storage te-st switch
off
the
PROCESS ?O'ition'
SeqCtr=3
(See Note 1)
No
Seq Stat
3 On
Seq Ctr iV.ode On
load On
Repair load circuits(Figures
25-26)
NOTES
Yes
(See Note 2)
See
CPU
roller
2 for
stotuL
Fl T lood check caused by:
I . Sus in parity
2.
Doto parity
3.
Unit check on device
A
1
<:~~~i~~--1
IAR
4020
A
v
/IAR=lO
f.:' . _
<;._ond SOR -
Ye•
8080 8080
No
Monl'O!I)'
LMd
Test
2
Refer lo table J
and repair
stomg<: address
Stop occurred in test I
Repair binary trigger
) - - - - - - - - - - -
Stop occurred in test 3.
Using IAR and SOR
indications, refer to
MS mode HC test 3 in
scopex segment 0,
Repair tr:gger
Force indicate,
Compare ROSOR bit1
with word map for
current
ROS
address
ond repair ROS DR bit.
PreH START
Check
ta1 stops at
F06
011d
F07
Press START
Stop with SOR - All l
'!
and pori1y
B
Set check control
'witch to process
position
l. On ext.nded ROS, initial halt ofter load is \AR= -41lSC.
2. If FLT load operation results in lood checks, perform the follOW"ing operation to checl- out the FLT
load duto poth from the selector channel B register to the SOR on on FLT lood from tape:
Uting the off-line CE controls an the TAU,write o long, continuoUI record of oil ones on a
scratch tape (mounted on on ovai I able tape unit).
b. R.wind the tape, put the TAU bock on-line, ond perform
o
normal FLT load.
Set the selector channel roller ta the 8 register (position I) and visually compare the biB
appearing in tt.e 8 register with those appearing in SOR. If any bit p01ition is not
functioning, it it apparent in the indicaton, An FLT lood check also occurs but the
loading of data continue1 until the end of the tape record i1 reached (the full record
written in step 1),
d. The procedure can be repeated to check for correct zero states
by
writing all zerOI
{except potity bit) on tape and repeating steps 2 and 3.
The parity bit pa1itiGn1 con be checked far
their
zero state
by
writing all zerOI in bit
potitions P
and
0-6
and one in positin"
1
ond repeating steps 2
and
3.
FIGURE 34. FLT RUN AND REPAIR PllOCEDURE
Tobie 1
Foiling
SAR Bit
29
28
27
26
25
24
23
22
21
20
19
18
Main Store Mode - ROS 8i
t
T est1
to PROCESS. Press START
Set FLT <ontrnl ,w;t<h
1--------
Ye•
End of
FLT l
Error Stop:
SDR, 16-19 on, bit
tested should be l;
off, bit tested
should be 0,
SDR
24-31,
hex value
or ROS bit number.
SDR
1-12
ROS
addre~s
L __
~
End
of
FLT
1
- - - - - - - - - - - -
- -
IAR
Indicator
101
4
4
4
4
4
209
4
4
4
4
4
ROS Mode - Hcrdcore T.•sts
~-F-l_T-::.o-::.t,=l ,=w::::to::.H_A_LT_A_F_T_ER-L-0-A-D~
Set check control switch to DISABLE
Rewind T.ipe
System Reset
FLT
Load
SOR
Mount and load Fl T tape 2
tAR - 490
SDR "'all l's
R0S
Mode - Cycle Tests
lndi cat or Byte
c
14
24
...
84
JOB
204
End
005 Mode
Tesh
404
804
- -
-
-
-
1004
2004
Using SOR and
!AR
vo!ues,
repairwith
ROS
mode listings
Using SDR 16-31, refer to
scopex and repair problem
SOR 16-19 =segment number
SOR
20-31
= test number
Segment
0
= ZCT
x
Figure 35
End of FLT 2
-
-
-
Maintenance Features
(3/71)
55
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