Diagnostic Testing and Troubleshooting (2635A) 5A

General Troubleshooting Procedures

 

 

 

 

 

 

A1TP4

 

 

 

 

A1TP30

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A1TP10

 

 

A1TP5

A1TP31

 

A1TP32

A1TP6

 

 

 

 

A1TP18

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A1TP8

A1TP11

 

 

 

 

 

 

A1TP3

 

 

A1TP1

A1TP7

 

 

A1TP20

 

 

A1TP13

 

 

A1TP2

 

A1TP14

 

 

 

 

 

 

 

 

 

 

 

 

A1TP15

 

 

 

 

A1TP12

 

 

 

 

 

A1TP9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A15 A14 A13 A12 GND A11 A10 A9 A8 A7 A6 A5 A4 GND A3 A2 A1 FC0

DD

GND CS2 CS3

RMC

IAC PB11 PB10 PB9 PB8 WDOG

 

 

 

V FC1 FC2 CS0 CS1

 

 

VDD

17

 

 

 

10

 

5

1

 

125

 

 

117

GND

 

A16

 

 

 

 

 

 

 

 

 

 

 

 

 

TOUT2

 

A17

 

 

 

 

 

 

 

 

 

 

 

 

 

TIN2

 

A18

 

 

 

 

 

 

 

 

 

 

 

 

 

TOUT1

 

A19

 

 

 

 

 

 

 

 

 

 

 

 

 

VDD

 

GND

 

 

 

 

 

 

 

 

 

 

 

 

110

TIN1

 

A20

25

 

 

 

 

 

 

 

 

 

 

 

IACK1

 

A21

 

 

 

 

 

 

 

 

 

 

 

 

IACK6

 

A22

 

 

 

 

 

 

 

 

 

 

 

 

 

IACK7

 

A23

 

 

 

 

 

 

 

 

 

 

 

 

 

GND

 

VDD

 

 

 

 

 

 

 

 

 

 

 

 

105

UDS

 

GND

30

 

 

 

 

 

 

 

 

 

 

 

LDS

 

D15

 

 

 

 

 

 

 

 

 

 

 

 

AS

 

D14

 

 

 

 

 

 

 

 

 

 

 

 

 

R/W

 

D13

 

 

 

 

A1AU1 MICROPROCESSOR

 

 

GND

 

D12

 

 

 

 

 

 

XTAL

 

 

 

 

 

 

 

 

 

 

 

 

 

100

 

GND

35

 

 

 

 

 

 

 

 

 

 

 

EXTAL

 

D11

 

 

 

 

 

 

 

 

 

 

 

 

VDD

 

D10

 

 

 

 

 

 

 

 

 

 

 

 

 

CLK0

 

D9

 

 

 

 

 

 

 

 

 

 

 

 

 

IPL0

 

D8

 

 

 

 

 

 

 

 

 

 

 

 

95

IPL1

 

VDD

40

 

 

 

 

 

 

 

 

 

 

 

IPL2

 

D7

 

 

 

 

 

 

 

 

 

 

 

 

BERR

 

D6

 

 

 

 

 

 

 

 

 

 

 

 

 

AVEC

 

D5

 

 

 

 

 

 

 

 

 

 

 

 

 

RESET

 

D4

 

 

 

 

 

 

 

 

 

 

 

 

90

HALT

 

GND

45

 

 

 

 

 

 

 

 

 

 

 

BR

 

D3

 

 

 

 

 

 

 

 

 

 

 

 

NC1

 

D2

 

 

 

 

 

 

 

 

 

 

 

 

 

BGACK

 

D1

 

 

 

 

 

 

 

 

 

 

 

 

 

BG

 

D0

 

 

 

 

 

 

 

 

 

 

 

 

 

BCLR

 

CTS3

50

 

 

 

 

 

 

 

 

 

 

 

 

DTACK

 

CD1

 

 

 

55

60

 

65

70

75

 

80

83

GND

 

 

CTS1

RXD1

RXD2

TXD2

RCLK2 TCLK2 GND CTS2 RTS2

CD2 SDS2

DD

TXD3 RCLK3 TCLK3 GND PA12

DREQ DACK DONE FRZ DISCPU BUSW NC3 BRG1

 

RTS3 RTS1 TXD1 TCLK1

RCLK1 VDD

 

 

 

V RXD3

CD3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

s43f.eps

Figure 5A-1. Test Point Locator, Main PCA (A1) (2635A)

5A-7

Page 206 Page 208
Page 207
Image 207
Fluke 2625A, 2635A service manual General Troubleshooting Procedures
Page 206 Page 208

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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