Siemens Computer Tomography Controller Card Chip Level Repairing is a deep-level maintenance, which has certain difficulties, and its high technical content requires certain conditions. The maintenance instruments should be compatible with the current development level of Siemens Computer Tomography equipment. The methods of using multimeters, ordinary oscilloscopes, and off-line device testing in the past have been unable to meet the needs of chip-level maintenance of Siemens Computer Tomography controller cards.
The use of new maintenance instruments and equipment can provide strong support for chip level maintenance of circuit boards. Such as: 1C online tester, short circuit tracer, writer, memory oscilloscope, logic analyzer, wave soldering machine, etc.
To perform chip-level maintenance, we must first use the diagnostic software, functional block diagram, logic circuit diagram, signal flow chart, test points and fault status indicators provided by the Siemens Computer Tomography Controller Card to determine the faulty circuit board and narrow or determine the fault range on the board.
To understand the function of the integrated circuit on the faulty controller circuit card, the main purpose, the basic circuit principle, the technical parameters of the circuit chip and device, the signal flow and the logic level and waveform of each test reference point under normal conditions. Technical manuals for related integrated chips and devices should be available on hand.
The diagnostic software provided by general CT equipment can diagnose the failure of functional units of subsystems such as power supply pcb card, signal acquisition and conversion, image processing, and high-voltage parts, and clearly prompt error information for maintenance reference.
