Computer maintenance engineer (desktop and notebook chip maintenance) training

Computer assembly and maintenance

Computer hardware options, actual assembly, CMOS and BIOS settings, understanding computer assembly steps, skills and precautions, mastering software installation and configuration, operating system (DOS operating system), disk tool Ghost and hard disk partition magic, soft and hard fault analysis and maintenance.

Cathode ray tube display

The circuit foundation, electronic component resistance, capacitance, inductance, transformer, crystal oscillator, semiconductor diode, triode field tube, ic integrated circuit, special component principle, amplifier circuit, rectifier and its voltage stabilizing circuit, and physical component measurement are explained in detail. How to look at the circuit diagram and analyze the working principle of circuit design by using the circuit diagram?

Liquid crystal display:

Principle, structure, disassembly method of liquid crystal, detailed circuit, circuit principle and maintenance of liquid crystal power board, circuit principle and maintenance of high voltage board, circuit principle and maintenance of driving board, screen measurement, screen distribution and driving board, etc. , screen model identification, circuit board maintenance, EEPROM writing, using upgrade head to write universal board, online upgrade writing program, maintenance method, interface circuit, interface line sequence, voltage measurement assembly and modification. Maintenance methods such as black belt, white spot, flower screen, black screen, red screen and blue screen. , change the lamp, change the film, deal with the backlight, change and repair the power board, high-voltage board driver board, LCD screen, TV, etc. And the common faults of various brands of liquid crystal displays.

Hard disk maintenance

Hard disk body structure, hard disk interface technology, hard disk circuit board, soft and hard faults, hard disk maintenance method and detection process, welding technology. Hard disk circuit board maintenance, hard disk opening machine explanation, and replacement of head assembly and disk can solve the problems of abnormal sound, head deadlock, BIOS denial, inability to partition, unformatted, bad track and so on. Advanced data recovery, through certain manual operations and algorithms, solves the unique problem of data loss.

Main board maintenance

The working principle and maintenance of the original devices and chips on the motherboard, the starting circuit, power supply circuit, clock circuit, reset circuit, basic input and output system (BIOS) circuit and I/O interface circuit of the motherboard, and the working principle of the graphics card and sound card. Analysis, detection, elimination and welding technology of common faults of main board. Key test points, bus expansion slot key test points, troubleshooting, BIOS writing, common mainboard maintenance methods, skills, ideas and processes.

Maintenance of memory, graphics card and sound card. Component welding, BGA chip, CPU broken needle, broken wire repair, maintenance tool use.

Second, the notebook computer chip-level maintenance technology

The external and internal structure, shell, mouse, interface, CPU, motherboard, memory, graphics card and screen, optical drive, sound card and stereo, network card and wireless network card, battery and power adapter of notebook computer. Installation and configuration of notebook computer, BIOS and CMOS foundation, BIOS setting of ordinary notebook computer, partition operation of notebook computer, installation, configuration and testing of notebook computer operating system, notebook computer network connection scheme, networking foundation, notebook computer internet access scheme, notebook computer software troubleshooting, notebook computer hardware troubleshooting.

The working principle and fault maintenance of notebook protection isolation unit circuit, system power supply unit circuit, CPU power supply unit circuit, charging unit circuit and local power supply unit circuit are comprehensively explained. Chip identification, CPU working principle, power management, notebook motherboard, audio and video control chip detection and maintenance, BGA chip welding, LCD screen detection and replacement, screen line replacement, high-voltage line replacement and replacement, password failure, IBM0 175 error reporting failure, notebook motherboard special detection card use, no power supply, power failure, flower screen, white screen, black screen, BIOS setting. Circuit analysis of serial-parallel connection, USB interface, keyboard, CD-ROM drive, battery and charging circuit failure, BGA welding of the whole machine: replacing notebook integrated circuit, chip and battery maintenance, fully mastering the skills of notebook battery disassembly and maintenance, working principle of notebook battery, circuit board fault maintenance, battery replacement principle, internal resistance test, battery combination methods and skills, providing a lot of practical opportunities.

Five gifts: printer maintenance, electronic circuits and components, LAN assembly and management, LCD maintenance, office automation.