IBM System/360 2050 Maintenance Manual page 114

Set
Lower
Case Latch
Shi ft Change
No
No
FIGURE 109. 1052 READ SEQUENCE
Yes
Set
Space
Fire 554
(200ns)
Reset Shift
Change If
Necessary
Ready for
Next Char
No
Yes
Fire SS7
(200ns)
No
Service Checks, Adjustment and Removal Procedures (3/71) 113