07/03/2026
Digital Oscilloscope/Logic Analyzer workshop starts on March 15/22.
Laptop/desktop repair
Mobile phone repair
Tv radio repair
Automobile electronic repair
කරන හැමෝටම join වෙන්න පුලුවන්.
First day of online theory (full day)
Second day practical (full day
Rs20000
Whatsapp link 👇👇👇
https://chat.whatsapp.com/Iu8IFk0QojtJhIE2jzL11Y?mode=gi_c
sample Video
https://www.youtube.com/watch?v=M8tpr7-PNns&t=2443s
Digital Oscilloscope / Logic Analyzer 2-Day Workshop
Structured Topic Pattern
Module 1—Fundamentals of Digital Oscilloscope & Logic Analyzer
1. Introduction to Digital Oscilloscope
2. Introduction to Logic Analyzer
3. Difference between Multimeter, Oscilloscope, and Logic Analyzer
4. Understanding Voltage, Time, Frequency, and Duty Cycle
5. Types of Signals: Analog vs Digital
6. Waveform Basics: Sine, Square, Pulse, PWM
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Module 2—Oscilloscope Basic Operation
7. Oscilloscope Front Panel and Button Functions
8. Probe Types and Proper Probe Connection
9. Channel Selection and Ground Reference
10. Setting Time/Div and Volt/Div Correctly
11. Trigger Function and Trigger Modes
12. How to Capture Stable Waveforms
13. Measuring Amplitude, Frequency, Period, and Pulse Width
14. Understanding Noise, Ripple, and Signal Distortion
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Module 3—Basic Signal Testing on Laptop/Mobile Boards
15. Clock Signal Testing on Laptop/Mobile Boards
16. Reset Signal and Enable Signal Checking
17. PWM Signal Testing in Power Circuits
18. Practical Fault Finding with Oscilloscope and Logic Analyzer
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Module 4—Logic Analyzer & Digital Communication Basics
19. Logic Analyzer Basics for Digital Communication
20. Protocol Introduction: I2C, SPI, UART Basics
21. I2C Communication Checking
22. UART Signal Checking
23. SPI Communication Basics with Logic Analyzer
24. Data Line Stuck High/Low Identification
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Laptop-Related Practical Checking Methods
Module 5—Laptop Input and Main Power Rail Checking
25. DC-IN Line Checking
26. Adapter Voltage Checking
27. Main Power Rail Checking
28. 3.3V / 5V Always Present Rail Checking
29. Power Sequence Basic Checking
30. ON/OFF Switch Signal Checking
31. ACDET / ACOK / Adapter Detect Signal Checking
32. Battery Charging Waveform Basic Checking
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Module 6—Laptop Power Section Waveform Analysis
33. Coil Voltage Checking with Oscilloscope
34. Short vs Normal Waveform Identification
35. PWM Signal Checking in Buck Converter
36. MOSFET Gate Waveform Checking
37. Gate, Drain, Source Signal Comparison
38. Ripple Checking on Power Rails
39. Noise Checking on Power Supply Lines
40. Power Good Signal Checking
41. Buck Converter Switching Waveform Checking
42. Inductor Switching Pulse Checking
43. Charger IC Related Waveform Checking
44. Fan PWM Signal Checking
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Module 7—Laptop Clock/Reset/Sleep/EC Signal Testing
45. Crystal Clock Signal Checking
46. CPU Clock Presence Checking
47. Reset Signal Checking
48. Enable Signal Checking
49. SUS Signals Checking
50. SLP_S3 / SLP_S4 / SLP_S5 Basic Checking
51. EC-Related Signal Checking Basics
52. Oscillator Output Checking
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Module 8—Laptop Communication & Peripheral Signal Checking
53. BIOS SPI Line Waveform Checking
54. Keyboard Data Line Checking
55. Touchpad Communication Line Checking
56. LCD / eDP / LVDS Signal Basic Observation
57. USB Data Line Checking Basics
58. Type-C CC Line Basic Checking
59. Audio Signal Basic Waveform Checking
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Module 9—Comparison & Practical Fault Diagnosis
60. Comparing Good Board vs Faulty Board Signals
61. Practical Fault Finding with Oscilloscope and Logic Analyzer
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Mobile-Related Practical Checking Methods
Module 10—Mobile Power Rail and Charging Line Testing
62. Mobile PMIC Output Rail Checking
63. Power Button Line Checking in Mobile Board
64. Battery Connector Voltage Checking
65. Charging Input Line Checking
66. Sub Power Rail Waveform Checking
67. Display Power Line Checking
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Module 11—Mobile Signal & Communication Line Testing
68. Touch Line Basic Signal Checking
69. Mobile Clock Line Basics
70. I2C/SPI Lines in Mobile PCB
71. Boot-Related Signal Observation Basics
