Diagnostic Testing and Troubleshooting (2620A/2625A)

5

Power Supply Troubleshooting

A1TP17

 

A1TP4

 

 

 

 

 

A1TP8

 

 

 

 

 

A1TP31

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A1TP16

A1TP11

A1TP6

 

 

A1TP15

 

 

 

Display

 

 

A1TP30

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A1TP5

 

 

 

 

 

 

 

 

 

Connector

 

 

A1TP32

A1TP1

 

Option

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A1TP3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Interface

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A1TP31

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A1TP10

 

 

A1TP13

 

 

 

 

 

A1TP18

 

 

 

 

 

 

A1TP14

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A1TP12

RS-232

 

 

 

 

 

 

A1TP19

 

 

A1TP9

A1TP7

A1TP20

 

Connector

 

 

 

 

 

 

 

 

 

A1TP2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Digital

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

P70 RD*

P71 WR*

P72 R/W*

P73 LIR*

 

 

 

 

Input

 

 

NMI

STBY

RES

MP1

MP0

EXTAL

XTAL

Vss

NC

E

P74

P30 D0

P31 D1

 

 

 

 

9

8

7

6

5

4

3

2

1

68

67

66

65

64

63

62

61

 

 

 

P20

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

60

P32 D2

 

 

P21

11

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

59

P33 D3

 

 

DSCLK P22 12

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

58

P34 D4

 

 

RX P23 13

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

57

P35 D5

 

 

TX P24 14

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

56

P36 D6

 

 

DISRX P25 15

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

55

P37 D7

 

 

DISTX P26 16

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

54

NC

 

 

EESK P27 17

 

 

A1U4 MICROPROCESSOR

 

53

P10 A0

 

 

NC 18

 

 

 

52

P11 A1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IRQ1* P50 19

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

51

P12 A2

 

 

IRQ2* P51 20

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

50

P13 A3

 

 

SWR1 P52 21

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

49

P14 A4

 

 

SWR2 P53 22

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

48

P15 A5

 

 

SWR3 P54 23

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

47

P16 A6

 

 

SWR4 P55 24

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

46

P17 A7

 

 

SWR5 P56 25

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

45

Vss

 

 

SWR6 P57 26

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

44

P40 A8

 

 

 

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

 

 

 

 

TRIG P60

P61

OPS* P62

EEDO P63

EEDI P64

DTR P65

PFAIL* P66

EECS P67

NC

Vcc

A15 A47

A14 P46

P45 A13

P44 A12

P43 A11

P42 A10

P41 A9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

s32f.eps

Figure 5-1. Test Point Locator, Main PCA (A1)

5-7

Page 176 Page 178
Page 177
Image 177
Fluke 2625A, 2635A service manual Test Point Locator, Main PCA A1
Page 176 Page 178

2635A, 2625A specifications

The Fluke 2625A is a sophisticated data logger designed for a wide range of industrial and laboratory applications. This versatile instrument excels in capturing and monitoring temperature and voltage measurements with precision and reliability. One of its standout features is its ability to record data from various sensors, making it ideal for environments where comprehensive data acquisition is critical.

Equipped with a large LCD display, the Fluke 2625A provides clear and user-friendly access to real-time measurement data. Its graphical interface allows users to visualize trends and monitor readings easily, which significantly enhances usability. The device supports a variety of input types and can connect to thermocouples, RTDs, and other sensors, offering great flexibility for various measurement tasks.

The Fluke 2625A employs advanced measurement technologies that ensure accuracy in data logging. With a high sampling rate, it captures fast-changing signals while maintaining data integrity. The device features a built-in memory that allows for extensive logging, accommodating long-term monitoring tasks without requiring constant oversight. Users can set it to log data at specified intervals, offering customizable solutions for different monitoring needs.

Another significant characteristic of the Fluke 2625A is its robust communication capabilities. The device supports USB and RS-232 interfaces for easy connectivity with computers and other devices, making data transfer and analysis seamless. This feature is especially beneficial for users who need to compile or analyze large sets of data quickly.

Furthermore, the Fluke 2625A is designed with durability in mind. Its rugged construction makes it suitable for challenging environments, including those with high levels of vibration, dust, or moisture. This reliability ensures that the device can withstand the rigors of fieldwork while still delivering accurate measurements.

In summary, the Fluke 2625A is a powerful data logger that combines versatility, accuracy, and reliability. Its user-friendly interface, advanced measurement technologies, and robust design make it an essential tool for professionals in various industries, from manufacturing and HVAC to research and development. Whether monitoring temperature changes in a laboratory or assessing voltage levels in an industrial setting, the Fluke 2625A stands out as a trusted solution for effective data logging and analysis.
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