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1.
SECTION II.
OPERATOR'S CONTROL PANEL
Repeat steps "e" through "h" as many times as there are
characters to be written into successive memory locations.
4.
To trace program flow manually:
a.
Set the CONTROL buttons to designate the sequence register
(octal 17), unless this register is already designated.
b.
Press the CONTROL DISPLAY button {to display the current
operation code.
c.
Press the INSTRUCT button (to execute the instruction).
d.
Repeat steps "e" and "c" the desired number of times.
5.
To perform a BOOTSTRAP and RUN operation:
a.
Press the INITIALIZE button.
b.
Press the ADDRESS buttons (to designate the starting loca-
tion in main memory,
if
different from zero).
c.
Press the CONTENTS buttons to designate the desired pe-
ripheral control.
d.
Prepare the periphe ral device de signated in "c" above (i. e. ,
cycle up the device) to accept a PDT instruction which will
read in the loading program.
e.
Press the BOOTSTRAP button and wait for the STOP indi-
cator to illuminate.
f.
If the program being loaded is written for other than two-
character addressing mode, press the appropriate ADDRESS
MODE button to select the proper addressing mode.
NOTE:
It
is usually not necessary to manipulate the AD-
DRESS MODE buttons, since the program usually
contains the appropriate instruction for address-
ing mode control.
g.
Press the RUN button.
Abnormal Stop Procedures
The control panel power indicators {viz., VOLTAGE, FAN, andCB), the PARITY indicator,
and the PROGRAM indicator signal abnormal stop conditions.
The operating procedures for
each of these occurrences is outlined below.
VOLTAGE
FAN
CB
PARITY
If a VOLTAGE indication occurs, the system ordinarily stops opera-
ting altogether.
In this case, the service engineer should be called.
The FAN indicator may flicker intermittently at times during nor-
mal operations, but if the indicator illuminates and remains con-
stant (in which case the system powers down), a service engineer
should be called.
Illumination of the CB indicator denotes a circuit breaker actuation,
in which case the system ceases operation.
In this event, the ser-
vice engineer should be called.
When a PARITY indication occurs, central processor operations
stop and cannot be resumed normally by simply pressing the RUN
2-15
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