Fluke 77 Series III, Service Manual

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77 Series III
Service Manual
5-8
TP3
HOLD
HV BT
DC
K
M
+/-
AC 1D
1E 1A
2D
2E 2A
2B 3B
3A 3E
3D
MAN
4C
4A
AUTO
BG1
BG5 BG3 BG9 BG7
BG11
BG13
BG15 BG17 BG19 BG21
BG25 BG23 BG29 BG27
BG31
H0
H1
L C D - P A N T H E R
D S 1
VM
VDD VDD
P 2 3
S3 S2 S1 S0
P 2 2
P 0 3
P 1 0
P 0 1
P11
P 0 2
P 1 2
P 2 0
P 1 3
P 2 1
S7 S6 S5 S8 S4 S9 S11 S12 S10 S13 S14 S18 S17 S16 S15 S19 S20 S23 S22 S21
P 0 0
INTA
RESET
C K 2
T
F
D D C
OSCIN
T1
OSCOUT
T2
VCC
S24 S27 S26 S25 S28 S29 S33 S31 S32 S30 S34 S37 S39 S36 S35 S38 S40 S41 GND
H 1
H 0
GND
S M N 3
U 2
S 3
R 1 2
10.0K R11
10.0K
V D D
0.1
C 2
0.1
C 1 0
0.1
C 3
2.2
C 4
S 2
CER DESIGNATES CERAMIC CAPACITOR
M DESIGNATES MYLAR/POLYESTER FILM CAPACITOR
CERM DESIGNATES CERMET FILM RESISTOR
MF DESIGNATES METAL FILM RESISTOR
MG DESIGNATES METAL GLAZE RESISTOR
WW DESIGNATES WIRE WOUND RESISTOR
TA DESIGNATES TANTALUM CAPACITOR
PP DESIGNATES POLYPROPYLENE CAPACITOR
PC DESIGNATES POLYCARBONATE CAPACITOR
0=COMMON
*1=VDD
CODE*
FUNCTION
S1 POSITIONS PROCEDING CLOCKWISE
FUNCTION B0 B1 B2
1 OFF - - -
2 AC VOLTS 1 1 1
3 DC VOLTS 0 1 1
4 300 MVDC 0 0 0
8 DC CURRENT 0 1 0
7 AC CURRENT 1 1 0
5 OHMS 0 0 1
6 DIODE TEST/CONTINUITY 1 0 0
H O L D
2 5 V
2 5 V
2 5 V
0.1W 0.1W
37 36 40 2 19 21 39 24 25 27 28 29 30 34 35 33 32 38 26 22 3 5 4 7 6 8 10 9 11
12
13 15 14 41
42
17 16 18 20 23 31
72 74 73 32 36 37 35 34 30
79
7 8
7 7
20 2
17
16
15
14
13
12
11
10
9
7
6
8
60
26
18
5
31
33 58 57 38 59 49 50
51
53 52 54 55 56 27 63 28 29 39
3
4
2 5
23 24 80
43 42 44 45 46 48 47 64 65 66 68 67 69 70
71
19
22
2
1
1
2
2 0 V
FLUKE 77-3-1001
aaa11f.eps
Figure 5-1. A1 Main PCA (cont)