HP 3490A - Page 287

GUARO MOTHER BOARD
.9
0- 6553
|
4iaa:'
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:.1t..:.
SAMPLE/HOLD
TR IGGER
G PIB
CONNECTOR
VIEWED
FROM OUTSIDE
REAR PANEL
LETF EXTERNAL TRIGGER
FLAG
+
5Vr
S/H
TTL TRIGGER
TRIGGER
CONNECTOR
Jtl
VIEWED
ä'
NOrE I
JUMPER
REMOVED ANO
TRANSFORMER ADDEO
IF
S/H OPTION
INSTALLED
FROM
OUTSIDE
REAR
PANEL
AqtJ3
z (-i-- +rzv1
TO OUTGUARO
ROM ASSEMELY
2l
s8,
-
A0DRESSABLE
--*-rAi'-xo4LY
NOTES'
L IF INSTRUMENT IS
BEING PROGRAMMED
EXTERNALLY
RY GPIB
SYSTEM ANO
REFUSES
TO
SAMPLE VIA EXTERNAL
TRIGGER
SIGNAL. CHECK TO SEE IF
JUMPER WI I
IS IN PLACE.
ISOLATED PO$/ER
SUPPLIES
+lzvl
+5Vl
tr
a
TN
ü
tr
S/H
AC
TRIGGER
I
AY
HEWLETT-PACKARD
COMPANY
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