IBM System/360 2050 Maintenance Manual page 74

Processing unit
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SELECl OPTIONS IN 5010 AND
INHRl~UPT.
01
06
07
08
OA
OD
12
TT
OY ----
OY XXXX
OY XXXX
OY ----
DY XXXX
DY----
DY XXXX
EOOl
PRINT TOR FAIL FOR EACH RTNE.
PRINT FIRST ERROR OF EACH RTNE.
LOOP ON RTNE XXXX.
PRINT T OR FAIL FOR EACH RTNE.
LOOP ON
RTN~
XXXX.
SUPPRESS T PRINTING.
SUPPRESS T PRINTING.
LOOP ON RTl'-IE XXXX.
LIST FAILING RTNES.
LOOP ON TEST TT OF ROUTINE XXXX.
SDR CONTAINS ADDRESS OF DIAGNOSE
INSTRUCTION FOR LOOPING.
IW--.. ____
E indicates hardcore
E021
COOi
~1£!_
__ . _____
C indicates common channel
Cl 11
T COil
T Cl21
1000
1011
T 1021
T
~2,.._
_ _ _ _ _ S_e_ri_es
T 1031
1032
T 11
oI,... _____
R_o~u_t_in_e
T 1102
T 1903
(XXXX)
(TT)
Storage location 5010 • WW<NXXXX
WW refers to MCxxx pages in Volume l of ALO Maintenance Diagrams
Y denotes channel number:
01 : channel 1
10
~
channel 2
11 •· channel 3
XXXX denotes series and routine
Storage location 5014 ·• TT (if EC 255458 or above)
TT
denotes test number
TEST NUMBER
o:fil-5}]:-----;EST 1-,JAME
IF CONTROL CK-OP IN TEST
TIME CYCLE
Unit-Select-Drop-OP IN
SYNC POINT
ROS FC5
~(Number
of successful times through the test loop.)
LOOP NUMBER
IQQI
Diagnose Adr
11
FD8i-(Addre" to be placed in oddreS! keys to loop on this test.
A A
R INDICATES GOOD PATTERN
IAR r_epeat
k~y
must be
use~
to loop.
1
Caution· This test must be
in
core.)
CHANNEL 1 IS SELECTED IN 5011
GGl 31 AC4
24
CH CHK SIM
(What the result should have been)
GE101AM4
30
CH CK IF CL-(Exomple l)
GA131AP4
29
CC PH A SPO
0
GB181AG4
02
PREG UNIT SEL
GB181AT4
05
PREG END UP
0
GA131AT2
09
CC PHASA ST2
G8151AG4
17
REQ R PR13-(Bit description)
GB101AC4
21
REQ REG 3
GV1l 1AJ4
19
STOP REL
0
GS111AJ4
31
ENBL STAT IN
0
GR101AQ4
21
OP iN TEST
0
GR101AD4
23
SEL OUT
1 IGB17ll AV4 ~
POS REG TRF -(Example 2)
Fail
1921 \
~Bit
position (see NOTE)
C N e t (bl.,ck AV line 4)
ALO page number
FIGURE 49. PROGRESSIVE SCAN PRINTOUT (SEL CH)
NOTE- Refers to a position in one of the selector channel indicator rows (1-6),
- - Note that positions 28-31 indicate one of two possible bit positions.
Example l
(position 30) indicates the actual bit position (30)
on roller row 3.
(position 28) indicates the parity bit position for
0-7 on roller row 5.
To find the indicated bit you must compare the description with
the selector channel roller chart>. The parity positions that ore
now shown as 28-31 will soon be 5hown as positions 32-35 to
eliminate this condition.
The error printout portion (1921-14) indicates on interface control check
failure. Using the selector channel IF control check page (E1411-01),
or the analysis page (El 321-01) in Volume 1 of ALO Maintenance
Diagrams, the failure con be quickly diagnosed.
To oee if an indicator is on while looping IAR on the diagnose address,
raise the repeal IAR switch and look at roller position. Lower
switch la resume looping.
Maintenance Features
(3/71)
73

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