B L O C K D I A G R A M H E - Philips PM2517E Service Manual

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6.7. A RANGES
6.7.1. Display consta nt 0000
N o .
From
M e a s u r e m e n t
t u l e a s u r i n g p o i n t s
M e a s u r i n g d a t a
C o r r e c t
I n c o r r e c t
S u p p l y v o l t a g e O 0 0 0 6 :
( 4 4 0 1 )
L o = o ' s o c k e l O
+ 6 v
R e i e . t o C R e l e r t o B
B C h e c k R 4 l 3
P o w e r s u p p l y t r a c k s
R 4 r 3
R 4 1 3 = 3 k 3 0elect 000063
( 4 4 0 1 )
R e p a r r
c
C u f f e n t l r x 0 0 0 0 6 3
( 4 4 0 1 )
H i = 4 4 0 1 i 1 6 |
L o = o - s o c k e t I
S 6 l e c l ; F u n c t i o n k Q
A U T O r a n g i n g
R e f e r l o D
R e f e r l o E
D
E
c
c
Check R401, lrack
4401/16 to V/a inpul
Currenl lrc OQ0063
(440r)
R 4 0 1
H i = 4 4 0 1 / 3
r
L o = o ' s o c k e l V
S e l o c l : F u n c t i o n k Q
A I J T O r a n g i n g
R401 = 100a PTC
C h e c k s w r l c h e s
R e f e r t o G
E
C h e c k R 4 0 2 , R 4 0 4 R 4 0 2 , R 4 0 4 R 4 0 2 = l 2 l k
R 4 0 4 = 1 6 k 9
D e t e c t O 0 0 0 6 3 R e p a r
G E
I C h e c k t r a c k
D e i e c l O 0 0 0 6 3
6.7.2. Range 1000Q cannot be adiusted (Adj. no. j4)
N o .
F r o m M e a s u r e m e n t
l V e a s u r i n g p o i n t s
M e a s u r i n g d a t a
C o r r e c t l n c o r r e c l
Curfent lrc 000063
14401)
H r = 4 4 0 1 i 3
S e l 6 c l : F u n c t i o n k A
R a n g e 1 0 0 0 4
C h e c k t c u ( e n l c a n
b e a d t u s t e d
R e l e r l o C
R e l e r l o B
B
C h e c k F 4 0 2 , F 4 0 4 ,
R 4 0 3 a n d l r a c k s
R 4 0 2 . R 4 0 4 , R 4 0 3 F 4 0 2 = 1 2 1 k
R 4 0 3 = 1 0 k p o t . m e l e r
8 4 0 4 = 1 6 k 9
Oelect 000063
c
Current lrx 000063
(440r )
S e l e c t ; F u n c l o n k Q
R a n g e r 0 0 0 a
R e l e r t o D
D e t e c t O 0 0 0 6 3
D
c
V o l l a g e o n l r y I n p u l
0 0 0 0 6 3 ( a 4 0 1 )
H r = 4 4 0 2 / 1 6 ,
L o = o - s o c k e l ü
S 6 l e c t ; F u n c t i o n k A
R a n g e 1 0 0 0 Q
S h o r t c i r c u i t V Q a n d 0
Detect O00063
C h e c k R 4 0 1
6.7.3. Range 1oMQ cannot be ad,usted (Adj. no. 1S)
N o .
From
Measuremenl
M e a s u r i n g p o i n t s
M e a s u r i n g d a t a
Correct
lncorrect
Vout 000063
(4401)
8i = a40ri 8
Lo =o.socket ü
Select; Fanqe 1kQ.
1KQ connected to
VQ/o (lull scale)
- 2 V
C a n b e a d j u s t e d w r t h
R 4 0 7
d e l e c l O 0 0 0 6 3
R e l e r t o I
B
V o l l a q e o n s l r d e r
R407
H i = R 4 0 7 s l i d e r c o n t a c l
S e l e c t ; R a n g e t k a
l K Q c o n n e c t e d t o
V Q / O ( f u l l s c a l e )
% v o l t a g e m e a s u r e d
R e f e r l o E
F e l e r l o C
c
B c h e c k R 4 0 6 , R 4 0 7 , R 4 o t
R 4 0 6 , R 4 0 7 , R 4 0 8 F 4 0 6 = 2 k 8 7
R 4 0 7 = 1 0 0 4 p o t m e i e r
F1408 = 2k87
R e f e r i o D
D
c
v o l l a g e o n c o n n e c t i o n
o l F I 4 l 4 , R 4 1 5
H r : C o n n e c l r o n R 4 1 4
R 4 1 5
L o = o - s o c k e l ü
S e l 6 c l ; R a n g e 1 k 9 ,
1 k Q c o n n e c t e d t o
V a / o ( l u l l s c a l e )
+ 0 . 9
+ 1 V R e t e r l o E D e l e c l V 4 5 1 8 Y 1 6 4