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This feature perrnits
the removal of the ?re-Patch
?anel
to balance the operational
amplifier'
However' when the com-
puter is switched from
POT SET to any other
mod'e ' the relay
contact's open and the
circuits
as patched on the Pre-Patch
P a r r e } p r o v i d e s t h e f e e d b a c k l o o p . M o r n e n t a r y a m p l i f i e r o v e r l o a d .
nay rezult
during the relay
operating time; thus
to eHminate
p o s s i b l e e r r o r i n t h e c o m p u t e r s o l u t l o n , t h e o p e r a t o r s h o u J d
always sr^ritch the conputer
FESET (depress the FESET
button)
or
Al,l, FESET (depress Al,t
FESI
butt'on for nulti-mod'e
operation
only),
before switching to the
COMPIJIE or REP O? nrode'
This
pennit the pot set relays
to open and the implifier
suruning
junctions
to settle
before starting
the problem solution'
There is no actural
rraiting period required; that
is'
tb
operator may depress the FESET
or AJ'L RESEa button and
then
inrnediately depress the
button for the desired mode'
This
sequence of operation will
prevent the possible
momentary over-
load
from
effecting
the problem solution'
b.
?re-?atch
Panel Insertion
and Removal
T o j n s e r t t h e ? r e - P a t c h ? a n e l ' s e t t ' h e l i p o n t ' h e l o r ^ r e r e d g e o f t h e
panel in the quide groove
(f:-gure 2'2-3)'
Push the top of the
panel in
so the panel is verbical
until
the panel is clarnped autoroatically'
D e p r e s s t h e E N G ( f o T E N G A G E ) t r r t t o n o n t h e l o w e r l e f t e d g e o f t h e
c o r n p u t i n g c o n s o ] . e . T h i s b u t t o n p r o p e r l y s " ' t ä a n d f i r n l y h o l d s t , h e P r e -
?atch ?anel in position.
As the ENG and Drs
(for DrSENGAGE) br:ttons can
m e m o r i z e t h e o p e r a t o r a e t i o n , i t i s n o t n e c e s s a r y t o k e e p t h e b u t t o n d e -
p r e s s e d r r n t i l t h e p a n e l i s l o a d e d . I n t h e E N G s t a t e , a f t e r t h e p a r r e l i s
l o a d e d , t h e p a r r e l c a n n o t b e r e m o v e d r r n l e s s t h e D l s b u t t o n i s p u s h e d .
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