Download Rigol DM3058E Specifications

Chapter 6 Troubleshooting & Maintenance
RIGOL
DM3058 Principle Summary
The circuit of DM3058 can be divided into floating circuit, grounding circuits and
power input.
1.
The floating circuit includes current fuse, signal input end of front panel (banana
socket) and measurement analog front-end which contains all the circuits of
measurement function such as input protection, function switch, signal transform
conditioning, A/D conversion and control interface.
In the following functional block diagram of circuit of DM3058, each box
represents an alternative component part.
Power Input
Socket
LAN/GPIB
LCD
Key Board
USB Host
Board
Ground Circuit
Filter Board
Transformer
( CPU )
DM3058 Motherboard
Front End Circuit
Power Input
Current Input Fuse
Banana Socket
Floating Circuit
Figure 6-1 Circuit Diagram of DM3058
6-2
Service Guide for DM3058