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Models 2510 and 2510-AT
Troubleshooting
4-5
Principles of operation
The following information is provided to support the troubleshooting tests and procedures
covered in this section of the manual.
Overall block diagram
Figure 4-1 shows an overall block diagram of the Model 2510. Circuitry may be divided into
three general areas:
•
Analog circuits
— includes source circuits such as the pulse-width modulator, H-drive,
and class D output stages, as well as measurement circuits such as the sensor signal
conditioning and A/D converter circuits.
•
Digital circuits
— includes the microcomputer that controls the analog section, front
panel, and GPIB and RS-232 ports, as well as associated interfacing circuits.
•
Power supplies
— converts the AC line voltage into DC voltages that supply the
power for the digital and analog circuits, and the class D power amplifier.
Analog Section
Output to TEC
A/D
Converter
Sensor
Signal
Conditioning
Input from
Temperature
Sensor
Display,
Keyboard
Microcomputer
Digital
I/O
GPIB
Interface
RS-232 I/O
GPIB I/O
Digital Section
To Analog
Circuits
To Output
Stage
To Digital
Circuits
±
15V +5V
+15V
+5V
Analog
Power
Supply
Output
Stage
Power
Supply
Digital
Power
Supply
Line In
Power Supply
DAC
H Drive
Mux
Front
Panel
Controller
Trigger,
Digital
I/O
RS-232
Trigger
Link
Class D
Output
Stage
Pulse
Width
Modulator
TEC
I/V
Sensing
Over I
Limit
Control
Register
Figure 4-1
Overall block
diagram
2510-902-01 (E - Mar 2010)(Service).book Page 5 Tuesday, March 16, 2010 1:04 PM
Содержание TEC SourceMeter 2510
Страница 3: ...2510 902 01 E Mar 2010 Service book Page 2 Tuesday March 16 2010 1 04 PM...
Страница 14: ...1 PerformanceVerification 2510 902 01 E Mar 2010 Service book Page 1 Tuesday March 16 2010 1 04 PM...
Страница 28: ...2 Calibration 2510 902 01 E Mar 2010 Service book Page 1 Tuesday March 16 2010 1 04 PM...
Страница 54: ...3 RoutineMaintenance 2510 902 01 E Mar 2010 Service book Page 1 Tuesday March 16 2010 1 04 PM...
Страница 58: ...4 Troubleshooting 2510 902 01 E Mar 2010 Service book Page 1 Tuesday March 16 2010 1 04 PM...
Страница 76: ...5 Disassembly 2510 902 01 E Mar 2010 Service book Page 1 Tuesday March 16 2010 1 04 PM...
Страница 82: ...6 ReplaceableParts 2510 902 01 E Mar 2010 Service book Page 1 Tuesday March 16 2010 1 04 PM...
Страница 92: ...A Specifications 2510 902 01 E Mar 2010 Service book Page 1 Tuesday March 16 2010 2 33 PM...
Страница 96: ...B CalibrationReference 2510 902 01 E Mar 2010 Service book Page 1 Tuesday March 16 2010 1 04 PM...
Страница 110: ...C CalibrationProgram 2510 902 01 E Mar 2010 Service book Page 1 Tuesday March 16 2010 1 04 PM...
Страница 119: ...2510 902 01 E Mar 2010 Service book Page 4 Tuesday March 16 2010 1 04 PM...