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Sect i o n
V - M
a in te n a nce
M
ode l 59313 Α
5- 1 6
e .
R
e p eat Ste p s c an d d, excep t trigge r exte rn al sta r t by un gr o un d ίng (o pe n circui t) the ΕΧΤ STRT j ack .
5-23 .
HP- ΙΒ v er ifi catio n prog ra m u sing t h e 9825 Α Ca l culato r .
T
able 5-4 con ta ins in struct i o ns
f
o r
r
unning α 9825 Α ca lc ul ator p rog ram (avail ab l e on casette - HP
P
a rt No . 59300-10001) to c hec k th e
59313 Α
f
o r p ro p er
o
perat io n
o
f t h e HP- ΙΒ Ι / Ο . This p rogr a m is α
s
h o r ten ed vers io n
o
f
t
h e minimum
p erf orman ce c hec k (p aragra ph 5-7) an d sh o uld be u sed accordingly.
5-24.
A DJU S TMENTS .
b .
R
e m o v e t h e to p cover .
5-25 .
Two o f
t
h e c h a nne l inpu ts s ho ul d ha v e α pho ne plug in serted a nd t w o sh ould n ot, a n d th e in st ru-
me nt covers s ho ul d be on . Turn on the p ower a nd wa rm up t h e in strum e n t
f
o r at
l
east 10 minu tes . (Mini-
mum p er f orman ce c h eck s with covers c l osed ca n be do ne d uring t hi s t ime .) The te mpe r at u re wil l be
fully stabiliz ed in abo u t 2 h ou rs .
5-26 .
P
er f orm t he ad
j
u st m en t as
f
o llows :
NOTE : Try to wor k quickly so in te rn al coo lin g i s minimized .
α .
Turn o ff
t
he p ower by disconnecting th e p owe r cord .
ε .
R
e m ove t h e 4 sc r ews holding the top ci r c ui t boa rd to t he brac k ets .
d .
B y t h e transform e r
t
h e r e
i
s α pl ace wh e re t h e forefinger can reach un der bot h
t
h e Top and Middl e circuit
boards . Pu ll up with
t
he fin ger, t h ereby disengaging t h e conn ector .
e .
In se rt the Top board edge co nn ector (that
n
or m ally
f
aces the
r
ear) in to t h e soc k et in
t
he botto m boar d so
the Top and Middle boards (whi c h
a
r e bol ted togethe r) sta n d on e n d .
f.
(1)
Co nnect t he
D
VM betwee n t h e +15 TE S T POINT
a
n d c h ass is gr oun d.
(2)
A
d
j
u st the +15 p ot ( R 81
B
ottom boar d) so t h e
D
VM reads +15 .000 ±2 mV (14.998 to 15 .002) .
g .
(1)
Co nn ect th e
D
VM betwee n t h e -15 TE S T POINT
a
n d chassi s groun d .
(2)
The
D
V
M
s
h o uld read betwee n -14.5 a n d -15 .5 (no ad
j
u st me n t).
b .
(1)
Gro und t he ΕΧΤ S TRT j ac k .
(2)
P
rog r am still
h
a ngs .
ε.
( ι )
Se n d Con trol Ch a r acte rs
Α
σ
(2)
Se n d T alk Address.
(3)
R
ead 1 byte
f
ro m HP-113 .
(4)
Displ ay t h e byte on the co ntr o lle r .
(5)
P
rog r am still
h
angs up at reading the byte .
d .
(1)
G ro und
t
h e
r
ear p a ne l ΕΧΤ S TRT j ac k .
(2)
So me num be r i s d ispl aye d .
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