Specifications

RIGOL Chapter 6 Troubleshooting & Maintenance
Service Guide for DM3058
6-2
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.
DM3058 Motherboard
Front End Circuit
( CPU )
Current Input Fuse Banana Socket
LAN/GPIB LCD Key Board
Filter Board
Transformer
Power Input
Floating Circuit
Ground Circuit
Power Input
Socket
USB Host
Board
Figure 6-1 Circuit Diagram of DM3058