DIGITAL-TO-ANALEG CONVERTER BLO_CK-ASSEMBLY (P/OAl-BOARD ASSEMBLYL(z5334-60014 [SEE NOTE 4)) (SHEETiF
7)
DATE CODE-89231
-
-
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-
-
DAC A
I
VOLTAGE SELECTION
\
/
SWITCHING
,
I
I
CONTROL SENSITIVITY SWITCH
DAC A/FRONT PANEL
SENS LEVEL
-
,
2x0
I
PLA CONTROL WXDWX SWITCH 4220 R7
1
SENS A CDNTROL LINE
TO
1
SHEET
U22A(4)
1
I
1
+
ADJ SENS 2x1
I
DAC A POLARITY
0
-C
POS
DAC A+/- 1
-D
NEG
R6S R70
1860
1960
TRIGGER LEVEL
I
'
CONTROL SWITCH
READ LEVELS
CWARATOR
SHEET 3
DAC
A
@
-
^
2x0
R107
POLARITY SWITCH 2x1
6180
-
C90 ZX
1
TO SHEET 3 U29C23)
--
01
0
~276,
RllSA
I
PLA
1
??tO
2
-
TO CHA
W
TRIGGER LEVEL A CONTROL LINE TO SHEET 1 U30(3)
I
-n
I
VIA R111,RllZ
I
+5V LIN
BUFFER
DAC A OUT
POS
6
NEG
1
-D
0v TRIG
VOLTAGES
0
k
ADJ TRIG
DAC A NEG VOLTAGE R74
T
1
-C
DAC 5110
RllaC O-D FRONT PANEL CONTROL
-
+5V LIN
I
8
A ZERO
-5
2v
/
DAC
B
\
VOLTAGE SELECTION
,-SWITCHING
I
\
I
SENSITIVITY
I
GND/-TL
I
CDNTROL SWITCH
I
SENS/-LEV
PLB
I
UZS(35) AM LEV
I
SENS LEVEL
i
R1 VIA R21
Am
LEV
UZS(2S)
DAC
DAC B+/- DAC B/FRONT PANEL
l-DOv
TRIG
1
-D
DAC
CONTROL SWITCH
0+FRDNT PANEL CONTROL
0
-D
ADJ TRIG
U29(28)
DAC'-FPC
DAC/-FPC
R72
'ONTRoL TO SHEET
1
UZZB(13)
FRCM
-
DAC B POLARITY
0
-D
POS
SHEET 3 FIB8
1
-D
NEG
p,"iO
1850
I
I
I
TRIGGER LEVEL
I
-
CONTROL SWITCH
I
15
v.&$cB
TO SHEET
3
UZS(24)
RFB
--
cs
1
DAC B
POLARITY SWITCH
-A
2x0
u29(30)---> 13,
(L
--
01 ZX
1
UZS(7)
u34
m7 4
-
6 5
'5 6
v
1
READ LEVELS CWARATDR TRIGGER LEVEL B CONTROL LINE TO SHEET
1
U23(3)
+5V LIN -5 2V (m4 7
UNITY
GAIN VIA R83.84
3
8
--
INVERT/NONINVERT
Ic60 Ic78 (m2 9 BUFFER
Pas
a
NEG
I
1
10 DAC B NEG VOLTAGE
VOLTAGES
I
'*00
11
?
I
,
I
FRW
SHEET
3
W0+7 BUS
U28(8-15)
I
-
-
-
- -
- -
-
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- -
1.
REFERENCE DESIGNATIONS WITHIN THIS
ASS-LY ARE ABBREVIATED. ADD
ASSWLY NWER TO ABBREVIATION
FOR CCCPLETE DESCRIPTION.
3. A TILDE
(.-')
PRECEDINO A SIGNAL
INDICATES A NEGATIVE-TRUE SIGNAL
4.
DESCRIPTION OF HP 53340 A1 MPllN BOARD ASSDgLlES
TABLE
Of
ACTIVE ELEMZNTS
INTEGRATED CIRCUIT VOLTAGE
AND GROUND CONNECTIONS
REFERENCE
'IN
NUgERS
+5V LIN
I
OND
I
-5.2V
Figure
8-21.
PIOAl
Main
Board
DAC
Block
Scheiiatic
Diagram
(Sheet
2
of
7)
HP
5334B
-
Service
Manual
8-97
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