Schematic - Zd 0817 Control Unit; Gain Sub-Section - BRUEL & KJAER 5998 Service Manual

Brüel & Kjær
BI 5044 –11
GUP,GDN,OUP,ODN,FUP,FDN,REFS,LOC,GA,GB,GC,OA,OB,FA,FB,REF_L,REMOTE_L
GDN GUP
TALA
TALB
TALC
LOAD_G
1 D4
2 9
8
74HC4075
VD6644
IEEE_ON 3 D4
4 6
5
74HC4075
VD6644
RESETOUT 11 D4
12 10
13
74HC4075
VD6644
TALA,TALB,TALC,LOAD_F,LOAD_G,LOAD_O,RESETOUT,IEEE_ON
Reciprocity Calibration Apparatus Type 5998
Service Manual
VDD
R21
GA GB GC
845
RC3290
D10 D15 3
15 3 3 4 4
A QA
1 2
B QB
74HCT14
10 6
C QC
VD6801
9 7
D QD
11 13
LOAD TCD
VDD
12
TCU
UP DN
CLR
R22
74HC193
5 4 14
845
VD6641
RC3290
D15 5
5 6 6
74HCT14
VD6801
VDD
R23
D7
845
15
Y0
RC3290
14 1
Y1 A
13 2
Y2 B
D15 1
12 3
Y3 C
9 8 2
VDD
11
Y4
10 6
Y5 G1 74HCT14
9 4 VD6801
Y6 G2A
7 5
Y7 G2B
74HC238
VD6669
G[0:5]0DB,IEEE[1:24],AOUTPUT,BOUTPUT,GOUTPUT,ROUTPUT,HPF_OFF,HPF_22.4,HPF_100,REF,PIST_ON,PIST_SW
Chapter 7 — Electrical Diagrams
Schematic – ZD 0817 Control Unit
+6V +6V
R24 C16
2.37K 2.2N
RC3337 CC0056
D14
10 3 4
9
74HCT14
VD6801
U2 PC837
GND1;7
VD0110 +6V;14
+6V +6V
+6V D19 +6V
R25
C17 VD6558
2.37K 2.2N
TPIC6259
18 2
D VCC
RC3337 CC0056
4
DRAIN0
D14 3
S0
5
DRAIN1
8 5 6 8
S1
6
DRAIN2
7 12
S2
7
74HCT14 DRAIN3
VD6801 13 14
G DRAIN4
U2 PC837
GND1;7 1 15
PGND1 DRAIN5
VD0110 +6V;14
10 16
PGND2 DRAIN6
+6V +6V
11 17
PGND3 DRAIN7
20 9
PGND4 LGND
CLR
R26
C18
2.37K 2.2N
19
RC3337 CC0056
D14
12 9 8
11
74HCT14
VD6801
U3 PC837
GND1;7
VD0110 +6V;14
ENGINEER DEPT. DATE TITLE
AL 8749 960708 CONTROL UNIT
DRAFTER DEPT. DATE
RECIPROCITY CALIBRATION APPARATUS
HBC 8349 960715
APPROVAL DEPT. DATE SERIALNUMBER VERSION
1
HBC 8349 960715
TYPE DRAWING NUMBER
DATE FILE NAME SHEET
5998 ZD0817
7-16-1996_11:15 GAIN 1

Gain Sub-section

G00DB
G10DB
G20DB
G30DB
G40DB
G50DB
B
K
PCB NUMBER SHEET NUMBER
XM0454 2.1
7 – 5