Read Checks - IBM 1620 Manual

Read Checks
Card Reader - Punch
NO-----~~ea~6~tc~r---------Yes
1622
Console
Reader Check
Yes ----..,..---- Yes
See
1622
Off Line Section
(Page
l<t5J
"3,/7
1622
Console No
Reader Check
yes----------<
~-----------No
Check
Transfer to
1620
Circuitry
Check
1) 1620
Input translator circuitry
2) 1620- 1622
line d rivers and
terminators
3. 16
False
1620
Check
Check
1620 error circuitry