Fluke 2635A Power Supply User Manual


 
Diagnostic Testing and Troubleshooting (2635A)
Analog Troubleshooting
5A
5A-15
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+
A3U8 ANALOG
MEASUREMENT
PROCESSOR
RMSC2
AC Divider
Network
Analog
Measurement
Processor
Intergrate Resistors, Reference Divider
Zener Reference
Divider
Network
(DC/OHMS)
A3TP9
A3TP1
A3TP7
A3TP8
A3TP2
A3TP3
A3TP4
A3TP5
A3TP6 A3TP10
A/D Microcontroller
AC Buffer
RMS Converter
RMS Converter
Network
A3TP12
A3TP11
A3TP13
s47c.eps
Figure 5A-5. Test Points, A/D Converter PCA (A3U9) (2635A)