Fluke PM6690 - Page 169

Display & Keyboard, PCB 2
Schematic Diagrams 9-23
5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
V0
V0
V1
V4
V0
V2
V3
V3
V2
V1
V4
+3.3V
+5V
+3.3V
+3.3V
+3.3V
+3.3V
+5V
+3.3V
Title
Size D o cum e nt Number Re v
Mod ify Date: Sheet
of
Project
01
Display and Key board Board
Pendulum Instruments AB
A2
11
4031 100 65860
May 28, 2004
CNT-90/91
Web Site = www.pendulum.se
15.0-17.6V
STDBY GA TE TR IGATR IGB
TO
BASIC
BOARD
L1
10uH
S24
USER OPT
C11
100nF
R18
10
H1
3.2 PLATED SQUARE PAD
S20
INPU T A
C7
100nF
C15
100nF
S3
UP
C16
22uF-6.3V
R1
47
U1C
LM358
V+
8
V-
4
S18
F7
+
-
U2A
LM358
2
3
1
C5
33pF
S10
C
S14
F3
D3
EL414GD
J1
FPC 20
NC
1
NC
2
NC
3
NC
4
NC
5
NC
6
FR
7
LP
8
DOFF
9
EIO
10
VDD
11
VSS
12
V4
13
V1
14
V0
15
NC
16
NC
17
NC
18
NC
19
NC
20
S25
HO LD/RUN
L2
BLM21A102S
U3B
PCA9555
VDD
24
VSS
12
S21
INPU T B
C9
100nF
H2
3.5 PLATED
R5
10
R13
10
C13
100nF
S8
RIGHT
C22
2.2uF-35V
S19
StandBy
C8
100nF
C1
100nF
U2C
LM358
V+
8
V-
4
S1
MEAS F UNC
R33
4.7K
R174.7K
S6
LEFT
C20
2.2uF-35V
S15
F4
D4
EL414GD
TP3
R20
47
C18
22uF-6.3V
PRO B E GND1
U3A
PCA9555
A0
21
A1
2
A2
3
SCL
22
SDA
23
I/O0.0
4
I/O0.1
5
I/O0.2
6
I/O0.3
7
I/O0.4
8
I/O0.5
9
I/O0.6
10
I/O0.7
11
I/O1.0
13
I/O1.1
14
I/O1.2
15
I/O1.3
16
I/O1.4
17
I/O1.5
18
I/O1.6
19
I/O1.7
20
INT
1
R35
Not used
S26
RESTART
1M
R2
H3
3.5 PLATED
S22
SETTINGS
470K
R4
320x97 DOTS
E1
TM32097AGFG
+
-
U1B
LM358
6
5
7
C6
100nF
R10
10
C25
22uF-6.3V
820K
R8
S13
F2
TP2
C19
100nF
C10
100nF
PRO B E GND2
S2
AUTO SET
C4
4.7uF-35V
R19
4.7K
S1 1
DOWN
REG
U4
TPS61045
L
1
VIN
2
CTRL
5
GND
6
SW
8
DO
3
FB
4
PGND
7
S16
F5
D5
EL414GD
R14
10
H4
3.5 PLATED
R3
4.7K
S4
VALUE
R6
Not used
S23
MATH/LIM
+
-
U1A
LM358
2
3
1
C14
100nF
C3
4.7uF-35V
R16
10
TP4J2
FPC 20
NC
1
V0
2
V2
3
V3
4
VSS
5
MD
6
FR
7
LP
8
DOFFB
9
XCK
10
DI7
11
DI6
12
DI5
13
DI4
14
DI3
15
DI2
16
DI1
17
DI0
18
VDD
19
NC
20
S12
F1
+
-
U2B
LM358
6
5
7
C12
100nF
100K
R9
S7
ENTER
C21
100nF
D2
EL414ID
C17100nF
S9
STAT PLOT
S17
F6
R34
4.7K
TP5
S5
OK EXIT
R7
4.7K
C232.2uF-35V
C24
22uF-6.3V
10BQ030
D1
J3
2x10 SMD
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
R11
10
R15
33K
TP1