Fluke 45 - Page 98

45
Service Manual
5-6
9 8 7 6 5 4 3 2 1 68 67 66 65 64 63 62 61
VSSAC ACR1 ACR2 ACR3 ACR4 AGND2 AIN ACB0 VDD RMSI
RMSG1
VSSRMS BIAS2 RMS0 ARTN RMSF
REFJ
LO
GUARD
RRS
V4
V3
V1
GUARD
V2F
V2
GUARD
V0
GUARD
0/VS
GUARD
AGND1
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
DGND
FC0 FC1 FC2 FC3 FC4 FC5 FC6 FC7
OSCIN
OSC0
MRST
AS
AR
SK
CS
BRS
27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
FA0
FAI
AFI
MOF
AF0
RA–
RA0
VREF–
VREF+
B3
B1
B.3
B.1
SUM
INT
VSS
RA+
A1U1 ANALOG MEASUREMENT PROCESSOR
A1U6 MAIN PROCESSOR
9 8 7 6 5 4 3 2 1 68 67 66 65 64 63 62 61
NMI STBY RES MP1 MP0 EXTAL XTAL Vss NC E
P70 RD*
P71 WR* P72 R/W* P73 LIR* P74 P30 D0 P31 D1
DIGR P20
DIGS P21
DSCLK P22
RX P23
TX P24
DISRX P25
DISTX P26
EESK P27
NC
P50
IRRQ2* P51
SWR1 P52
SWR2 P53
SWR3 P54
SWR4 P55
SWR5 P56
SWR6 P57
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
LOW BATT P60
OPTSW P61
OPS P62
EEDO P63
EEDI P64
P65
ACON* P66
EECS P67
NC
Vcc
A15 A47
A14 P46
P45 A13 P44 A12
P43 A11
P42 A10
P41 A9
27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
P32 D2
P33 D3
P34 D4
P35 D5
P36 D6
P37 D7
P10 A0
P11 A1
P12 A2
P13 A3
P14 A4
P15 A5
P16 A6
P17 A7
Vss
P40 A8
RMSC2
qb19f.eps
Figure 5-1. Test Point Locator