Filter
Top Products
DPO4000 Series Service M anual
2-1
Theory of Operation
This chapter describes the electrical operation of the oscilloscope to the module
level. Figure 2--1 s hows 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
EXT
Ch 4
2-channel oscilloscopes
3 Fans
AC Line
4-channel oscilloscopesEXT
Ethernet
connector
I/O Board
Compact
Flash Port
Aux Out
J100
J610
J570
J571
J850
J930
J680
J440
Bezel
buttons
J130
J420, J421
J170
J0480
J1
USB
J120
J510
Figure 2- 1: DPO4000 series block diagram