Tektronix 4000 Series Digital Phosphor Oscilloscopes Service Manual
2- 1
Theory of Operation
This chapter describes the electrical operation of the oscilloscope to the module
level. Figure 2--1 shows the oscilloscope module interconnections.
Block Diagrams
Power
Supply
Main board
Front Panel
Input ports for
application
modules
Attenuator circuit
Display
back light
inverter
power
LCD
Display
Ch 1
Ch 1
Ch 2
Ch 2
Ch 3
Ch 4
2-channel oscilloscopes
3 Fans
AC Line
4-channel oscilloscopes
Aux in
Ethernet
port
I/O Board
CompactFlash
Port
Trigger
Out
J100
J570
J571
J850
J930
Bezel
buttons
J130
J420, J421
J0480
J1
USB
J120
J510
Aux in
J680
XGA
Video
port
J170
J440
J610
J140
Figure 2- 1: Oscilloscope module interconnections
Summary of Contents for 4000 Series
Page 8: ...Service Safety Summary vi Tektronix 4000 Series Digital Phosphor Oscilloscopes Service Manual ...
Page 13: ...Operating Information ...
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Page 16: ...Operating Information 1 2 Tektronix 4000 Series Digital Phosphor Oscilloscopes Service Manual ...
Page 17: ...Theory of Operation ...
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Page 23: ...Adjustment Procedures ...
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Page 55: ...Mechanical Parts List ...
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