Starting Problems Oq0063 - Philips PM2517E Service Manual

Automatic digital multimeter
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P H I T I P S
equipment
for science
and industry
S M E B 4
$EHUIGE****m
800218
PM2s17 E/X
l e
l
l
L
A l r e o d y i s s u e d r S M E 8 3
R e
: 1 . S t o r i i n g p r o b l e m s O Q 0 0 l , 3
: 2 . B o t i e r y c o v e r
: 3 . P r e d e f l e c f i o n i n t h e m A = ' : = r o n g e
: 4 . l n c o r r e c t r e o d i n g i n t h e m A r o n g e s
S t o r t i n g p r o b l e m s O Q 0 0 6 3 .
-
E r r o r d e s c r i p t i o n
.
l f t h e P M 2 5 1 / i s s w i t c h e d - o n i n t h e f u n c t i o n Q , d o r
o C
* i t h o p . n i n p u t o r R x 8 0 0 0 ,
i t m o y h o p p e n t h o t t h e O Q 0 0 6 3 d o e s n o t s t o r f . T h i s c o n r e s u l t i n t h e f o l l o w i n g e r r o r s :
- D i s p l o y i n d i c o t e s o v e r l o o d
- D i s p l o y i n d i c o t e s o t o o l o w r e o d i n g
I n b o t h c o s e s f h e P M 2 5 1 Z d o e s n o t r e o c t o n r o n g e c o m m o n d s . A f t e r s w i t c h i n g O F F o n d
O N
o g o i n o r t o t h e f u n c t i o n s V = ,
V n
, m A = = o r m A r w t h e i n s t r u m e n t f u n c t i o n s
c o r r e c t l y o g c r i n .
-
C o u s e
S t o r t i n g p r o b l e m s o f t h e O Q 0 0 6 3 .
T h e p r o b l e m o n l y o c c u r s w i t h n e w L C .
' s
w i t h w e e k n u m b e r T 9 l 9 o n d h i g h e r ( r e f e r t o
s M E 8 3 ) .
-
R e m e d y
PM25I7E DMOI 600 - DM02 4926
PM2stTX DM01 600 - DM0l 3051
Only when the OQ0063 is reploced by o new type (weeknumber
'-79.19) the following
m o d i f i c o t i o n m u s t b e b u i l t - i n :
- R e m o v e c o p o c i t o r C 4 0 7 ( 2 2 n F \
- S h o r t c i r c u i t r e s i s t o r R 4 l 3 ( 3 k 3 )
- C o n n e c t t o p i n l Z o n d p i n l 5 ( $ ) o f t h e O Q 0 0 6 3 o n e l e c t r o l y t i c
c o p o c i t o r o f l 5 P F , 1 0 V i n p o r o l l e l w i t h o r e s i s t o r o f 6 8 k Q , C R 1 6 .
( p i n l Z o f t h e O Q 0 0 6 3 s h o u l d b e c u t o f f , r e f e r t o S M E 8 3 ) .
R4l8 = 68 kO, CRl6 5322 l l r 30291
c407- 1+ F , 10V s322 124 t4036
9499 478 10811
1 0
1 5
1 7 1 8

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