HP 5245L - A18 READOUT (5245 L-4 B)

I
I
i
t'--
I
I
Model
5245L
REFERENCE
DESIGNATIONS
OMITTEDs
DS5
R 3-5
L
NOTES
UNLESS
OTHERWISE
INDICATED
:
6.
RESISTANCE IN
OHMS;
CAPACITANCE
IN PICOFARADS
REFERENCE
DESIGNATIONS
IN PARENTHESES
INDICATE LIGHT OESTINATION
FOR
DSI-DS4.
LIGHT
SOURCE
IS NOTED
NEAR EACH
VI SECTION.
FOR
DSt
-
DS4,
SECTION.
A.
LIGHTS
ON
"
1"
;
SECTION
B LIGHTS ON
''O''
FILLED
SQUARE
(
I
)
tNOtCATES
C.ONDUCTING
ELEMENT
FOR
DECIMAL
''0..(BCD
"OOOO")
OUTPUT
CODE:
OPTION 02:
l=+18V, 0=-8V
oPTloN 03:
l=
-8V,
O=
+l8V
THE 05232-6002
DCA,S
ARE USED IN OPTION 02
INSTRUMENTS
(,'I''STATE
POSITIVE
8CD OUTPUT).
rHE 05232-6003
DCA'S
ARE USED IN OPTION 03
INSTRUMENTS
(..I..
STATE
NEGATIVE
BCD OUTPUT).
THIS SCHEMATIC
IS
FOR
BOTH DCAS.
THE
ASSEMBLIES
ARE
IDENTICAL
WITH ONE
EXCEPTION,
THE OPTION 02
DCA'S
(05232-6002)
HAVE RESISTORS
MARKED
WITH
DOUBLE
ASTERISKS
(**)
CONNECTED TO
COLLECTORS
AS
SHOWN
BY
-
+
-
+-
LINES.
THE OPTION 03
DCA.S
(O5232-6003)
HAVE THESE RESISTORS
CONNECTED
TO OPPOSITE
COLLECTORS
AS
SHOWN
BY
-
-
--
_
LINES.
2.
3.
4.
WAVEFORMS
TRUTH TABLE
DIGIT
4 LINE
CODE
RELEVANT
STAGES
VI
BI NARY
D c B
A D c B A
o
o o o
o KPRT
o
o o
I FMQT
2 o o
o
HNRT
3 o o EMOT
4
o
o
o
JPRT
5 o o
DLQT
6 o
I
o
GNRT
7 o
I
CLOT
8
I
o o
o
BS
9 I o o
AS
Ql
COLLECTOR
€
INPUT TO
O3_Q4
+
Q3
COLLECTOR
€
INPUT TO
Q5-Q6
.4
Q5
COLLECTOR
.+
INPUT
TO
07
+
FEEDAHEAD FROM
AI
CbLLECTOR
TO
1
Q8
BASE
COLLECTOR O7
OUTPUT
ANO
BIAS
TO DIODE
IN
Q3-04
INPUT CIRCUIT
05243-0-54
02349-1