IBM System/360 2050 Maintenance Manual page 38

Processing unit
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a.ie Re Clock
KT301
Lth
PK051
All Clocks Off
s ...
t
Pushllutton
ROS lngate
CPU-VO Clock On
KT311
NOTE, Soo CAS--QUIOO
FIGUIE 19. SUl'£AVISORY CONTIIOLS (PART I OF
2)
""" 2
System
Reset
KK701
KK70i
KK101
(To
1/0>
Re .. h PSW,
1/0
Stol<, ROS)
CE
Maint Controls
KK701
(To ROS,
(Causes
Ge ol
A Brcrtch Bir)
(To
Stop ..ii
Manual Tgn.)
R!quest for
IOS
MDde
Go
10
ROS Mode and Stop
1F'inol ~°" Decoder)
Chk Sw "Stop"
Chk Sw "Proceu"
IPL ltt<i "On"
Not Start
Not
Se
Ctr
Request For LT Pl
FLT Mode Sw "Load"
Lood PB
9'
Storage Tnt Sw "Not Proe.,s"
Start
Not MS Mode
Seq Ctr Mode
eq Stat"
Seq Ctr 5
Seq Ctr 7
l
T On
Error Interrupt T gr
Not Nonnal lntem.ipt
Error Clock
KTll1
A
KTIOI
Go to FLT Pl
Enor
Clk
KTlll
Not FLT Pl
KT301
Not System
Reset
OR
MS Mode
Go to MS Mode
KTlll
Go to Seq Ctr Mode For Log
KTl51
Sequenc.e
OR
L ___ i--~Cro"-":;'•;;:' ;-M_odl-•-
KT151
KT 151
KT151
Maintenance Features
(3/71)
37

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