This manual mainly introduces the use of DM3038A/EM3038A template, including technical specifications, interface descriptions, operation steps, etc., which can be used by users for reference.

This manual describes how to use the RIGOL DS1000B Series Digital Oscilloscopes.

VT4056 is a 1A linear lithium-ion battery charger. Its features include programmable charging current, no MOSFET, no detection resistor, no isolation diode, constant current/constant voltage operation, a preset charging voltage of 4.2V with an accuracy of ±1.5%, a charging current monitor output for battery capacity detection, automatic recharge, two charging status outputs, no battery and fault status display, C/10 charging termination, a standby mode with a power supply current of 55 uA, a 2.9V trickle charge device version, soft start limiting surge current, and battery temperature monitoring function.

Introduces the use of the DS1000B series digital oscilloscope, including safety overview, measurement category, safety terms and symbols, etc.

This is a user manual for T801 phone, which introduces the basic functions and usage methods of the phone, including installing and removing the battery, installing and removing the USIM card, turning on and off the phone, making phone calls, receiving phone calls, entering text, using the function menu, entertainment, browser, digital camera, call log, message service, phone book, mobile service, scenario mode, tool box, multimedia and my document.

LA-2050 is a logic analyzer launched by Leaptronix. This document is its Chinese user manual

This document is the S7-1200 Getting Started Manual, which introduces the features and functions of the S7-1200 controller.