3.1.3. TROUBLESHOOTING ALGORITHMS FOR PC POWER SUPPLY

Prior to repairing the PC power supply unit, the following measures must be taken:

• Ensure the implementation of security measures (BP connected through an isolating transformer);
• Examine, if available, the concept of the BP, identify the main structural blocks, get acquainted with the design features;
• To determine the constructive placement of the main structural blocks of the BP.
• Make a plan (algorithm) for troubleshooting BP.

Figure 29 shows a general view of the troubleshooting algorithm in the PSU.

Figure 30-32 shows the search algorithms for the most common cases of power supply faults.

Algorithms for troubleshooting in PSU PC

Figure 29 - Troubleshooting algorithm in the PC power supply

Figure 30 - Troubleshooting algorithm in the PC power supply in cases where the output voltages do not differ from the nominal
Figure 31 - Fault finding algorithm in the PC power supply, in case of absence of some output voltages
Figure 32 - Algorithm of troubleshooting in the PC power supply, in the event of protection of the power supply and the absence of remote control of the PSU.

See also

• Secondary power supplies
• 3.2.5 FEATURES OF VM POWER SUPPLY DEVICE, REPAIR METHOD
• Computer power supply
• 3.1.3. TROUBLESHOOTING ALGORITHMS FOR PC POWER SUPPLY
• Faulty ports on the motherboard (COM LPT USB)
• Malfunctions of active and passive radio radio elements
• Диагностика неисправностей видеокарты и ремонт
• Find, diagnose and troubleshoot an ATA disk
• 3.1.4. MAIN MALFUNCTIONS OF THE SYSTEMBOARD, THEIR SIGNS, CAUSES AND ELIMINATION METHODS
• 3.1.7. MALFUNCTIONS OF THE HARDWARE PART OF HDD THEIR CHARACTER OF MANIFESTATION, TECHNIQUE OF THEIR ELIMINATION
• Troubleshooting. Methods of troubleshooting As well as the reasons for the inoperability of electronic devices.
• Fault finding algorithm
• 3.1.3. TROUBLESHOOTING ALGORITHMS FOR PC POWER SUPPLY
• Development of a diagnostic and troubleshooting algorithm.
• 3.5. NETWORK EQUIPMENT TROUBLESHOOTING