Datron 1061 Calibration And Servicing Handbook page 30

--r
22
M22
R24
Reset
Sw¡tch
Polar¡ly
Sense
R58
c12
+
Cont
rol
M35
bc
From
DisitalAssembly
F.c.3.12 SIMpLIFIED DIAGRAM OF
ANALOG SECTION OF
A -
D CONVERTER
4
Detector
2nd
Nuil
lsl
Null
lntegrator
A6/R7
TP3
TP9
R59
c57
Detèctor
R2A
TP4
TP5
+8V
+5V
Null Signal
to
Digital
AssemblY
h
Speed
ul
ler
ABC
Analoo
Hio
Multiplõxer
É
FIG.3.13
TIMING DIAGRAM
FOR
ANALOG SECTION OF
A
-
D CONVERTER
(Positive
Signal)
lst Null
f1
TP3
TP5
Detector
znd Null
et
2
c
Output
2
1
0
1
0
1
0
a
b
-Ref
1
+Re
sig
lntegrator
TpÂ
Output
Mult¡plexer
(M351
Control
Lines
Buffer
Output
I
Final Null
Reset
(noisy)
.,
I
ffil.rtt-
',
,,.