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LAPTOP REPAIR PRACTICAL (HINDI)

Опубликовано: 28 апр. 2018 г. 29 307 просмотров

Static measurement: Let the board be suspended in a close-up mode, according to the logical principle of the circuit or chip output and input of the logical relationship between the use multimeter measuring the relevant points to analyze and judge the cause of troubles.
Dynamic Measurement and Analysis of Law: the preparation of specific procedures or artificial assertion normal conditions, the machine is running, measured with the oscilloscope to observe the waveform components, and compared with the normal waveform in order to determine fault location.
As the control logic on the motherboard increasingly integrated, so its logical correctness, has become very difficult to determine by measuring. Recommend that you first determine the relationship between the logic chip and a simple resistance-capacitance components, and then focused on the logical relationship failure is hard to determine the large-scale integrated circuit chips.

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Comments
  • All Zone Duniya Saraimeer
    All Zone Duniya Saraimeer 10 месяцев назад सर डेस्कटॉप Assemble करते समय किस किस बात का ध्यान देना चाहिए सर प्लीज बताइए
  • Hemanta kumar Sahu
    Hemanta kumar Sahu 6 месяцев назад Extent sir
  • Touqeer Siddiqui
    Touqeer Siddiqui 10 месяцев назад Very helpful video thank you so much harahad sir
  • Naeem Muhammad
    Naeem Muhammad 9 месяцев назад good job sir...thanks
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    Abid Ali 10 месяцев назад Very helpful video THANX SIR
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  • Anshad Edavana
    Anshad Edavana 10 месяцев назад You are a great teacher sir. You know how to explain the inner workings of circuits nicely.
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    Ashok kumar saini Bundi rajasthan 7 месяцев назад Very helpful video thank you so much sir
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    Bakkasur 10 месяцев назад Awesome
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  • All Zone Duniya Saraimeer
    All Zone Duniya Saraimeer 10 месяцев назад Sir Mere Paas HP Pavillion G4 Hai Wo Dead Hai Mai Uska 3 Pin Ka Mosfet Jiska Number PQ48 Aur Transistor PQ18 Bhi Change Kar Diya Uske Baad Bhi Board On Nahi Hua Sir Koi सर पहले PQ48 के ड्रेन पे सप्लाई 19 वोल्ट आ रहा था मैंने सोर्स और ड्रेन से जम्पर मार दिया था तो बोर्ड ऑन हो गया था लेकिन जब मै ऑन बोर्ड टेस्टिंग कर रहा था तो 68 दोनों से सट जाने के कारण शार्ट हो गया क्या सर कुछ सोलूशन बता दीजिये सर क्या करूं ???????????????????????????????
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    Kapil Gautam 6 месяцев назад Sir mere mai laptop mein Apne Haath work hone lagta hai sir kya kare touch Na karo tab bhi kaam krne lgta hai
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