HP 5383A Operating And Service Manual page 15

3-10. O PERATO R
C
HE C
K
S
3-11 .
T h ese qu ick prelimi na ry c h ec k s s h oul d be per fo rmed by th e o p erato r wh e n an i n st rume n t
failur e is s uspecte d :
Pr oble m Ι . Νο
d
isplay
d igits are illumi n ated
C
HE C K
α .
E
q u i p ment ca b le
p
l u gged
i
n?
b .
Prop er li n e voltage selecte d on
r
ear
p a nel? ( R efer to Par ag raph 2-8 .)
ι .
R ear p a n el fu se blown ? R e place blown
f
u se with α /4 am p 3AG fuse (HP Part
N umber 2110-0018) for 100-120 volt o pe ratio n or α am p (HP Pa r t Number
2110-0318) 3AG fu se fo r 220-240 volt ope ratio n .
Pr o b lem ΙΙ . All
d
isp lay
d igits are not ill u mi n ate d .
α .
T
h is is
n
ormal, T
h
e co un te r provi des α lea d i ng ze ro
b lan ki n g feat ur e w h ic h bla nk s
non-significant
d
isplay
d
igits . Th e followi n g
d is p lays a r e co rrect w h en α sign al is
n
ot a
p
plied to t h e cou n ter inp u t :
GAT E TIME Switch
Position
10 S/ Hz
1 S/ΜΗτ
.1 S/ΜΗτ
DISPLAY
M
o d el 5383 Α
O p eratio n
Ι ΙΙ ΙΙ ΙΊ ΙΙ
ΙΙ
ΙΙ Ι
Ι Ι, Ι Ι Ι-Ι Ι
Ι Ι- Ι Ι _Ι Ι- Ι
Ι Ι Ι Ι Ί Ι Ι
Ι Ι Ι Ι Ι
Ι- ΙΙ
ΙΙ - ΙΙ- ΙΙ- Ιι - ι
b .
F
or
f
urt h e r ass
u
ra nce, set t h e GAT E TIME switc h between any two
p
ositio n s . T h e
followi n g
d is p lay i nd icates t h at all
d
isplay
d
igit ci r c
u
its ar e ope r ati ng co rrectly :
I it
II- ι 1 ι
ι ίι ίιίι- ι
Ι
Ι
Ι Ι
ι_ ι ι ι
ι_ ιι_ ι
ΝΟΤΕ
Wh
e
n
positione
d
fo
r
t
h
e
d
is
p
lay digits test f
u
nction, GAT
E
TIME
switch AlS2 may o r may
n ot op en th e g r ound lea d to the
d
eci mal
p
oi nt input of t h e
d
isplay LE D .
F
o r th is
r
eason t he
d ecimal poi n t
may or may not be ill u minate d
d
ur i n g th is
d
igit test .