IBM System/360 2050 User Manual

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-Reset Input to C-13
E3A2802
1 v/cm, 40 ns/cm
-Ruet at latch
E3G2802
l v/cm, 40 M/cm
-Select 00
01C-D2N601 I
I v/cm, 40 ns/cm
-Drive 00
OIC-02M6G10
1 v/cm, 40 ns/cm
-Array Drive line
OIC-D2M6J04
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FIGURE 89. ROS WAVEFORMS
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One Signal Bit 00 Upper
CIC-El B2G 10
l v/cm, 40 ns/cm
ROS F00-F03--ROSDR Test All Ones
1. System reset.
2. Set data keys 20-23 (FOO).
3. Set ROS REPEAT INSN down.
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4. Check CPU roller l, position 6 and CPU roller
2, positions 1 and 2 for all bits on except 16, 24,
and 83.
5. Set data keys 30 and 31 on, in addition to 20-23
(F03).
6. Check for the conditions described in step 4.
7. Restore ROS REPEAT INSN.
8. System reset.
ROS F01-F02- -ROSDR Test All Zeros
1. System reset.
2. Set data keys 20-23 and 31 (FOl).
3. Set ROS REPEAT INSN down.
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Zero Signal Bit 00 Upper
OIC-EIB2GIO
I v/cm, .CO ns/cm
+Strobe Into Memory
01C-E3A2802
1 v/cm, 40 ns/cm
+Strobe After Powering
01C-E3G2J02
I v/cm, 40 ns/cm
-Latch Output Bit 00
OIC-E3E2J13
1 v/cm, 40 ns/cm
+Gate Upper Word
OIC-E3A2804
l ·::/::::m, 40 ns/::::m
+Gate Lower Word
OIC-E3A2004
I v/cm, 40 ns/cm
4. Check CPU roller l, position 6 and CPU roller2,
positions 1 and 2 for all bits off except the parity
positions.
5. Set data key 30 on and 31 off (F02) in addition to
20-23.
6. Check for the conditions described in step 4.
7. Restore ROS REPEAT INSN.
8. System reset.
ROS Address 000
ROS Addr 000 has only bits 16, 35, 37, 38, 39, 50,
56 (ZN4) (AL23) (DG2).
Extra or Missing Bits
Usually, the picking or dropping of a great number
of bits is due to an extra or missing drive line or
select line.
Service Checkl, Adjtlltment and Removal Procedure (3/71) 97

IBM System/360 2050 Specifications

General

Brand	IBM
Model	System/360 2050
Category	Computer Hardware
Language	English