Philips PM2517X - 6.7.4. Deviation in the measured value; 6.7.5. 10 Ma range not linear

78
6.5.4.
Oscillating
between
two Vtu ranges
t
t
6.6.
V- RANGES
(ATTN
+
AC/DC
CONV,)
t
t
t
t
t
t
ot
t
t
t
t
t
t
ot
t
t
E
I
t
t
t
E
No.
From
Measurement
l\y'easuring
points
Measuring
data
Correct
lncorrect
Signa
DH
OO0059
(D
101)
Hi= D10r/18
Switch from
one Vtu
lo
anolher V& rang€
wrth the manual
range
push
butions
o
l-----l
.J t-
-
8.5V
Pl]lse
ot 200rnsec
Chapter 6.l3
DATA HOLD
Reler
lo
I
I
Check
Rl18. C109
F]18
Cr 09
Fr18=2[,42
Cl09
=
220nF
Reler
lo C
c
B Signal
DH OQ0055
(D703)
Ht= D703/1
Swilch
lrom
one V-
to
anolher vtu range
!! lh the rnanual range
oJ-----L
-
8.5V
200rnsec
Checl
FrrT
and tracks Reler
10
D
D c
Fange
sw,rch
ng
Drsplay
Swrtch ranges wllh
the
manua
rang-a
Check f lhe
dec
mal
po
ni is
chanqing
Delect
O00055 Reier
1o
6.5.3.
Dec
ma po
nl
6.6.1. Display
constant
0000
No. From
Measurement
lvleasuring
points
Measuring
data
Correct Incorrect
Inpu t
srgnal
c301/R301
Selscl; Range tV-
Äranua rang
ng
Supply;
:0
5V!(Va.O)
lslhereasgnal
Relef lo B
No slgnal
Check C301,
Selector
switch
B
Signal Vinl
ot 000061
(4301)
Hi
=
430113
Select; Ranqe
V-
Manual ranging
Supply::0.5Vtu (VO
O)
:0.5V:10
Feier to
C
-
No
srq
nal
-
:1000
srgnal
c B
B
No
s
gna
:1000 siqna
Supply: 900mV, l kHz
ro 430'3
Hi
=
4301i
3
Sellings;
refer
io
B
D splay?
:0.5V:1000
0rsplay
0elect A30l
Track
shortcrrcLr t
Reler
lo D
No drsPlay
Deiecl F301/R302
D
E
c
D
Check track
R315, V3011V302
Gale vollage
V301/V302
R3r0
v30ri
v302
Hr
= gale
V301/V302
Selecl; Funct
on V-
lvlanual
ranqing
Range
tv
10v
100v
1000v
LOgrc
0
0
l
l
Loqic 0=
-8.5V
Refer
to E
Defecl V30l
E
Signal RNG
I
or
F314
H
=
R3l4 right
Select; Funclion V
tu
Manual ranging
See E
Reier to
G