Table of Contents
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Service Manual
Foreword
This manual contains service information for the instrument.
Before servicing the product, please read the General and Service Safety Summary.
Be sure to read the descriptions of all programs. These presentations provide important information required for the
correct, safe, and efficient performance of the Services.
Supported Products
This manual contains the information needed to service the following products:
UPO3352E，UPO3354E，UPO3502E，UPO3504E
•
MSO3352E，MSO3354E，MSO3502E，MSO3504E
•
MSO3354E-S，MSO3504E-S
•
Check for specific product names in headers, titles, table or graph titles, or text at the top of the page. Material without
any specific product designation applies to all products in the brochure.
Where to find operational information
For information on instrument installation, operation, and networking, refer to the Help or Owner's Manual that came
with your oscilloscope.
Theory of operation
This chapter describes the electrical operation of the oscilloscope at the module level. The block diagram shows the
interconnection of the oscilloscope module.
Figure 1: MSO/UPO3000E Series Block Diagram
Instruments.uni-trend.com
BNC
BNC
Signal
CHA
CHB
Coaxial
source
cable
board
Coaxial
Connector
cable
Mainboard
CH1
CH2
CH3
CH4
BNC
BNC
BNC
BNC
BNC
BNC
VGA USB
Ext trig
AUX
Interface board
FPC
Power
LA
USB
Power
module
MSO/UPO3000E Serials products
LAN
Keyboard
FPC
board
Display
screen
FPC
Display
FPC
board
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