T R O U B L E S H O O T I N G H I N T; U N I T I S I N O P E R A T I V; U N I T R E P O R T S E R R O R S 7 4 0 T; U N I T F A I L S S E L F - T E S - Agilent Technologies E3633A Service Manual

Hide thumbs Also See for E3633A:
Table of Contents

Advertisement

Chapter 5 Service
Troubleshooting Hints
Troubleshooting Hints
T h i s s e c t i o n p r o v i d e s a b r i e f c h e c k l i s t o f c o m m o n f a i l u r e s . B e f o r e
t r o u b l e s h o o t i n g o r r e p a i r i n g t h e p o w e r s u p p l y , m a k e s u r e t h a t t h e f a i l u r e i s i n
t h e i n s t r u m e n t r a t h e r t h a n a n y e x t e r n a l c o n n e c t i o n s . A l s o m a k e s u r e t h a t t h e
i n s t r u m e n t i s a c c u r a t e l y c a l i b r a t e d . T h e p o w e r s u p p l y ' s c i r c u i t s a l l o w
t r o u b l e s h o o t i n g a n d r e p a i r w i t h b a s i c e q u i p m e n t s u c h a s a d i g i t a l m u l t i m e t e r
a n d a 1 0 0 M H z o s c i l l o s c o p e .
C a u t i o n
This instrument contains CMOS integrated circuits which are susceptible to failure
due to electrostatic discharge. Refer to the ''Electrostatic Discharge (ESD)
Precautions'' section earlier in this chapter for further handling precautions.
Unit is Inoperative
V e r i f y t h a t t h e a c p o w e r c o r d i s c o n n e c t e d t o t h e p o w e r s u p p l y .
V e r i f y t h a t t h e f r o n t - p a n e l p o w e r s w i t c h i s d e p r e s s e d .
V e r i f y t h a t t h e p o w e r - l i n e f u s e i s i n s t a l l e d :
V e r i f y t h e p o w e r - l i n e v o l t a g e s e t t i n g .
Unit Reports Errors 740 to 750
T h e s e e r r o r s m a y b e p r o d u c e d i f y o u a c c i d e n t a l l y t u r n o f f p o w e r o f t h e u n i t
d u r i n g a c a l i b r a t i o n o r w h i l e c h a n g i n g a n o n - v o l a t i l e s t a t e o f t h e i n s t r u m e n t .
R e c a l i b r a t i o n o r r e s e t t i n g t h e s t a t e s h o u l d c l e a r t h e e r r o r . I f t h e e r r o r p e r s i s t s ,
a h a r d w a r e f a i l u r e m a y h a v e o c c u r r e d .
Unit Fails Self-Test
V e r i f y t h a t t h e c o r r e c t p o w e r - l i n e v o l t a g e s e t t i n g i s s e l e c t e d . A l s o , e n s u r e t h a t
a l l t e r m i n a l c o n n e c t i o n s a r e r e m o v e d w h i l e t h e s e l f - t e s t i s p e r f o r m e d . F a i l u r e
o f t h e D A C U 2 2 o n t h e P C b o a r d w i l l c a u s e m a n y s e l f - t e s t f a i l u r e s .
102
U s e t h e 6 . 3 A T , 2 5 0 V f u s e f o r 1 0 0 o r 1 1 5 V a c o p e r a t i o n .
U s e t h e 3 . 1 5 A T , 2 5 0 V f u s e f o r 2 3 0 V a c o p e r a t i o n .
S e e ' ' T o p r e p a r e t h e p o w e r s u p p l y f o r u s e ' ' o n p a g e 2 3 .

Advertisement

Table of Contents
loading

This manual is also suitable for:

E3634a

Table of Contents