ESI VideoBridge 2150, Руководство по обслуживанию

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3 . 6 POWER SUPPLY
A L L P A R T S O F T H E P OW E R S U P P L Y A S S E M B L Y I NC L U D I N G I N P U T
C I R C U I T C OMM ON A R E A T O R A B O VE P OW E R L I N E V O L T A G E .
T H E
E N ERGY AVA I L ABLE A T ANY P O I NT O N THE ASSEMBLY MAY BE L I M I TED
O N L Y BY THE I NPUT FUSE .
DO NOT ATT EMPT SERVI C E OPERAT I ONS .
F A I L U R E TO OBSERVE T H I S WARNI NG MAY RESULT I N SEVERE I NJURY
OR DEAT H .
T h e P ow e r S u p p l y , u n d e r n orma l cond i t i on s , ha s ve r y d a n g e r o u s h i g h
v o l ta g e s . Do n o t a t tempt to trou b l e s hoo t t he powe r supp l y .
I f t h e
powe r supp l y i s suspe c t e d o f be i ng f a u l t y , s e n d the e n t i re i n s t rumen t
ba c k t o E S I f o r s e r v i c i n g . To d e t e rm i n e i f a prob l em e x i s ts i n t h e
pow e r supp l y , l ook a t t he f i ve L EDs l o ca t e d on the m o t h e r b oa rd ( s ee
F i g u re 3- 2 2 ) . S h ou l d o n e o r more o f t h ese L E D s be d i m o r d a r k , t he
p ow e r supp l y may be f a u l ty a n d t h e i n s t r ume n t s h ou l d be s e n t to E S I .
I f a l l f i ve L E D s a re i l l um i n a t e d , t h e t r o u b l e i s n o t i n t h e powe r
s upp l y a nd n orma l t r ou b l e s hoo t i ng p r o c e d u r e s s h ou l d be con t i n u e d .
F i gu r e 3- 2 2 . P owe r Supply D i a gnos t i c LED Loca t i ons
3 - 3 7
e l s l i 2 1 5 0 /2 1 6 0 5 /8 5