HP 3490A - Page 227

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NOTES
.
I. IF
ALL
SUPPLIES
ARE
BAD,CHEC
Z. IF
-I7V
REGULATOR REFUSES
T(
AND
CURRENT LIMIT IS BAO. CRI
OPEN.
IF
HIGH FREOUENCY OSCILLATIO
PRESENT lN
+l7V
SUPPLY,
REMO
IF
-3OV
REGULATOR RISES ONLY
CRI22 MAY BE SHORTEO.
IF OI IS SHORTED
TO GUARO AI
STRAP
ON FRONT PAN€L
15
COI
TO
LOf,
A2R8
WILL OVERHEAT.
IF ANODE OF CRI SHORTS
TO
(
EJARO
STRAP ON
FRONT PANEL
CONNECTED
TO LOW, THERE
WIl
OFFSET READING ON FRONT
PAI
DC MOOE.
REGULATOR
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