SYLLABUS - COMPUTER TROUBLE SHOOTING AND MAINTENANCE / DIPLOMA - 5TH - CSE

SYLLABUS - COMPUTER TROUBLE SHOOTING AND MAINTENANCE / DIPLOMA - 5TH - CSE

CHAPTER - 1 FUNDAMENTALS   Definition: Troubleshooting, Diagnosis - Classification of Faults:  Hardware faults: Static faults, Dyna... August 02, 2017

CHAPTER - 1 FUNDAMENTALS

•  Definition: Troubleshooting, Diagnosis
• - Classification of Faults: 
• Hardware faults: Static faults, Dynamic faults,
• Software faults: System software fault, application software faults.

CHAPTER-2 GENERAL TROUBLESHOOTING

•  General Troubleshooting Rules
• - Study of abnormal behavior of PC system for fault finding, 
• Write everything down, 
• Do the easy step first, 
• Reboot and try again, 
• refer system manuals documentation, 
• Observe facts (Ref mark minasi’s)
•  Steps of Troubleshooting Success
• - Check for operator error
• - Check everything plugged in.
• - Check the software
• - Check external signs
• - Run diagnostic programs (Ref. Mark Minasi’s)

CHAPTER – 3 MOTHERBOARD TROUBLESHOOTING

•  Motherboard Troubleshooting (Rectification in case of following probable symptoms)
• - RAM error
•  Not enough memory or out of memory
•  Expanded memory unavailable
•  This program has performed an illegal operation and will be shut down
•  Fatal exception error
•  CMOS checksum error
•  A motherboard failure is reported but goes away when the PC's outer cover is removed.

CHAPTER-4 FLOPPY DISK DRIVE (Controller, Hardware And Maintenance)

•  Introduction
•  FDC system interface
•  Disk Drive block diagram
•  Troubleshooting floppy disk system
• - Drive cleaning
• - Track - 00 - test
• - Error code and beep code
• - Symptoms of failure
•  The floppy drive is completely dead
•  The floppy drive will not read from or write to diskette
•  O.S. reports an error, such as "can't read from drive A:"
•  When a new diskette is inserted in the drive the directory from a previous diskette appears
• - The floppy drive activity LED stays on as soon as computer is powered up.

CHAPTER – 5 HARD DISK DRIVES (HDD)

•  Introduction to HDD
•  HDC device interface
•  Drive concepts
• - Latency
• - Track, sector, and cylinders
• - Landing zone
• - Write pre-compensation
•  Concepts of drive formatting
• - Low level formatting
• - Partitioning
• - High level formatting
•  Drive testing and troubleshooting
• - Error codes and beep codes
• - Rectification in case of following symptoms:
• - Symptoms and solutions of
•  You see drive activity, but the computer does not boot from the hard drive
•  Error occurs during drive reads or writes
•  The hard drive was formatted accidentally
•  The hard drives root directory is damaged
•  A "sector not found" error message appears on the monitor
•  A "17xx error" appears on the monitor
•  An "Error reading drive c:" error message appears
•  A "track zero (0) not found" error message appears
•  A "hard disk controller failure" message appears on a monitor
•  "Disk Boot Failure", "Non-System-Disk" or "Non ROM Basic - SYSTEM HALTED" error message appears
•  A "File allocation table bad" error appears

CHAPTER-6 DISPLAY ADAPTER

•  Introduction
•  CRT controller principle
•  Video cards
•  MDA, CGA, EGA, VGA, SVGA, XGA, AGP
•  Video memory and video RAM
•  Troubleshooting a monitor
• - Error codes and beep codes
• - Symptoms and rectification
• - A single horizontal/vertical line appears in the middle of the display
• - Raster is present but there is no image
• - There is no image and no raster
• - The displayed characters appear to be distorted
• - The image appears to flip or scroll horizontally/vertically