Fluke 77 Series III User Manual

Schematic Diagrams
5
5-7
0.22
C13
VDD
BT1
9V
1000V,300
CODE
FUNCTION
INT
INT
LOW
HIGH
MA,10A
INT K0 AZ K1 AFO FAO
CONVERTER
FA(-) AFI ACLO ACHI ACA
B3
B1
B2 B0
+VDD
TEST
-VSS
BPR
XTAL2
XTAL1
ANALOG
PROCESSOR
FILTER*
AC
ACAC
AC*
AC*
AC
MOHMS
3V,300K
30V,30K
300V,3K
SOURCE
VOLTAGE
OHMS
OHMS
DT,OHMSV
X1
X0.3
ACTIVE
FILTER INTEGRATOR
TO
DIGITAL
SECTION
COMPARATOR
BUFFER
D3
D2
D1
D0
C0
NDAV
CLK
C1
C2
C3
EC
OHMS
DE-INT
DE-INT
AP75
U1
47PF
C16
TP1
10
C9
9.20K
R18
32.768KHZ
Y1
47PF
C12
33PF
C15
.027
C6
20.5K
R17
.027
C5
R10
1.50M
R9 1.00M
10
110K
225K
9
8
Z1
.033
C8
1.00MR19
0.47
C7
S1
2.2
C11
S1 S1
LS1
CR1
BAS16
S1
ON
RANGE
20%
63V
PC
63V
PC
PP
0.1W
25V
10V
0.5%
5%
5%
63V
6V
0.5%
5%
58
14
57
4567
49
50
51
52
56
54 55 32488
1716 26 4645443928 2740 47
59
1
60
12
6
4
6
5
6
96
FLUKE 77-3-1001
aaa10f.eps
Figure 5-1. A1 Main PCA (cont)

Fluke 77 Series III Specifications

General

Diode Test	Yes
Continuity Beeper	Yes
Battery Type	9V
Safety Rating	CAT III 600V
Display	LCD, 4000 counts
Voltage DC	1000V
Voltage AC	1000V
Current DC	10A
Current AC	10A
Resistance	40 MΩ
Weight	340 g