LENOVO IDEAPAD SLIM 3 | NO BACKLIGHT PROBLEM | 100% SOLVED

Summary

The video script discusses a technical issue with a Lenovo laptop, where the display input is not visible on the screen despite being received by the channel. The narrator demonstrates the problem and proceeds to troubleshoot by opening the laptop, disconnecting the battery, and inspecting the display connections. They check for proper voltage supply and identify potential issues with the display cable and capacitor. The video aims to guide viewers through the process of diagnosing and potentially repairing the laptop's display problem.

Takeaways

• 😕 The Lenovo laptop has a display issue where the channel comes in but doesn't appear on the screen.
• 🔍 Upon close inspection, the screen appears dimmer, indicating a potential backlight issue.
• 🛠 The user is attempting to resolve the problem by opening the laptop and disconnecting the battery for further inspection.
• 🔌 There is a visible factory defect in the laptop, which might be related to the display issue.
• 💻 The display cable appears to be damaged, which could be the cause of the display problem.
• 🔋 The laptop's power supply is checked to ensure it's providing the correct voltage to the screen.
• 🔍 The script mentions checking for any loose connections or damaged components that could affect the display.
• 🔌 The user discusses the possibility of a faulty backlight inverter, which is crucial for screen illumination.
• 🛠 The repair process involves checking and potentially replacing the damaged display cable and inverter.
• 🔄 The script describes a methodical approach to troubleshooting, including checking for proper voltage supply and connections.
• 👨‍🔧 The user mentions that despite replacing the screen, the problem persists, indicating a need for further diagnosis.

Q & A

What is the main issue with the Lenovo laptop mentioned in the script?

The main issue is that the display is not working properly. The channels are coming on, but the screen is dimmed and not showing the content clearly.

What is the first step the technician takes to troubleshoot the laptop?

The first step is to open the laptop and disconnect the battery to ensure there is no power supply while troubleshooting.

What does the technician observe about the display's backside connection?

The technician observes that the display's backside connection appears to be damaged, indicating a possible factory defect.

What is the purpose of checking the 3.3 volts supply to the screen?

The purpose is to ensure that the screen is receiving the correct voltage supply, which is necessary for its proper functioning.

What is the significance of the 0.2 ohms resistance mentioned in the script?

The 0.2 ohms resistance is being checked to ensure that the correct resistance is present in the circuit, which is crucial for the proper functioning of the display.

What does the technician do after noticing the screen's dimness?

The technician decides to perform a thorough check of the screen's connections and the components related to the display function.

What is the possible reason for the screen's backlight not working properly?

The possible reason could be a damaged or improperly connected backlight circuit, or a problem with the voltage supply to the backlight.

What does the technician suggest as a potential solution to the problem?

The technician suggests that the issue might be resolved by repairing or replacing the damaged components related to the display.

What is the role of the 'MP f-35' mentioned in the script?

The 'MP f-35' seems to be a reference to a specific part or model number, possibly related to the display or a component within the laptop.

What does the technician conclude about the laptop's condition after the checks?

The technician concludes that there is a problem with the laptop's display connections or components, which needs to be addressed to fix the issue.

What is the final step the technician takes in the script?

The final step is to reassemble the laptop after the checks and tests, and to confirm whether the issue has been resolved.

Outlines

00:00

💻 Laptop Display Issue Troubleshooting

The speaker describes a problem with a Lenovo laptop where the display is not showing the channel that is being broadcasted. They mention that the backlight is dimmed and the screen is not receiving the proper signals. The speaker then proceeds to open the laptop to check the connections and components, including the display cable and the power supply to the screen. They also discuss checking the voltage supply and the capacitors, indicating that the issue might be related to the screen's backlight or power circuitry.

05:01

🔍 Further Investigation of Laptop Display Failure

In this paragraph, the speaker continues to investigate the laptop's display issue. They mention checking the connections and noticing that there are no signals coming through, suggesting a potential problem with the display's data path. The speaker also talks about the possibility of a fuse being blown and discusses the symptoms that occur when the laptop is under stress, such as during gaming or when the display is subjected to high brightness. They conclude by suggesting that the issue might be related to the laptop's power management or the display's backlight system.

Keywords

💡Lenovo Laptop

A Lenovo laptop is a portable computer made by the Chinese multinational technology company Lenovo. In the video's context, it is the device that the narrator is working on, specifically dealing with a display issue. The laptop is mentioned as having a 'slim three' model, which could refer to a specific thin and light series of Lenovo laptops.

💡Display Issue

A display issue refers to any problem related to the visual output of a device's screen. In this video, the narrator is addressing a problem where the display input is not showing correctly on the screen, which is central to the troubleshooting process being described.

💡Linoleum

Linoleum is a type of flooring material made from natural materials like linseed oil and cork powder. In the video, the term might be used metaphorically or as a mispronunciation for 'liquid', possibly referring to a liquid crystal display (LCD), which is a common type of display technology used in laptops.

💡Backlight

Backlighting is the process of illuminating something from behind, and in the context of laptop displays, it refers to the light source that makes the screen visible. The script mentions a dimming backlight, which could be a symptom of the display issue being discussed.

💡Invalid Factory

The term 'invalid factory' is not a standard technical term but might be used in the script to describe a condition where the laptop's settings or components are not in their original factory state, possibly due to a repair or modification that has gone wrong.

💡Disconnect

To disconnect means to cut off the connection between two things. In the script, the narrator mentions disconnecting the battery to safely work on the laptop, which is a common safety procedure when troubleshooting electronic devices.

💡Wire

A wire is a conductive material used to transmit electricity or signals. In the context of the video, wires are part of the laptop's internal components, and the script mentions checking the connections and condition of these wires as part of the repair process.

💡Voltage

Voltage is the electric potential difference between two points. The script discusses checking for the correct voltage supply to the screen, which is crucial for its proper functioning. An incorrect voltage can lead to various issues, including the display problem described.

💡Capacitor

A capacitor is an electronic component that stores electrical energy in an electric field. In the video, the narrator checks a '3.3 volt' capacitor, which is likely part of the power supply circuit for the laptop's screen, and its condition could affect the display functionality.

💡Signal

In electronics, a signal is the transmission of information, which in the context of a laptop display, refers to the input that the screen receives to show images. The script mentions checking for signals to ensure that the display is receiving the correct information to function properly.

💡Fuse

A fuse is a safety device that protects electrical circuits from overcurrent by breaking the circuit when the current exceeds a certain level. The script mentions checking a fuse, indicating that a blown fuse could be a cause of the laptop's display issue.

Highlights

The laptop's display is not showing the channel properly, but the screen is dimmed.

The entire project is coming up, but the backside is not visible.

The screen is dimmed, and the speaker is considering applying linolic acid.

The laptop is opened to check the screen's back connection.

The battery is disconnected to prevent any power supply issues during the repair.

A faulty factory soldering is observed.

The display's back wiring is checked for any disconnections.

The WiFi card is verified to ensure it's functioning correctly.

The speaker checks for any loose connections or bad soldering points.

A 3.3-volt supply is confirmed to be present, which is essential for the screen.

A capacitor is identified as potentially causing the issue.

The speaker mentions that the screen's brightness调节 is not working properly.

The repair process includes checking the screen's voltage and current readings.

A jumper is used to bypass a potential issue in the circuit.

The speaker discusses the possibility of a fuse being blown.

The laptop's display issue is suspected to be due to a blown fuse or tension problem.

The repair concludes with the laptop's display functioning correctly after addressing the identified issues.

Transcripts

है

जैसे कि आप देख सकते हैं आप मेरे पास

साइकिल कस्टमर का लेनोवो का लैपटॉप है डेल

आईडिया पैड स्लिम तीन इसमें जो प्रॉब्लम

हुए दे डिस्प्ले जो है वह चैनल पर आता है

लेकिन स्क्रीन पर नहीं आता है

यह स्क्रीन में जो अगर हम गौर से देखें तो

स्क्रीन में डिम्ड इस कारण यहां पर मुझे

यहां लिनोलिक करा रहे पूरा मतलब पूरा

प्रोजेक्ट सब आ रहे हैं लेकिन जो बैक साइड

होती है वह नहीं आ रही है आप देख सकते हैं

यहां पर मैं

तरफ फोल्ड करके देख रहा हूं और तैयार है

ए पोस्टर ने किसी इंजीनियर को दिखाया उसने

स्क्रीन भी चेंज करके देखा लेकिन से ही

प्रॉब्लम था

हैं तो आज हम चेक करेंगे कि स्क्रीन की जो

बैक ले जाती है

कि वह कैसे रिपेयर होती है ठीक है तो सबसे

पहले हम इस लैपटॉप को खोलेंगे

कि

मैं

[संगीत]

तो खोलने के बाद सबसे पहले हम बेटी को

डिसकनेक्ट करेंगे ताकि जो भी सप्लाई है

ई वांट जय हटने के बाद दो

अरे यार देख सकते हो तो

तो यहां पर जो है यह अवैध फैक्ट्री लगी

हुई है

है तो सबसे पहले हम आटे को निकाल देंगे

ताकि

अब से कुछ सुनाओ

कि पुलिस करने करने के बाद यहां पर आप देख

सकते हैं कि यहां पर जो यह इसका डिस्प्ले

के बल दिया हुआ है आप नींद से दिखा दो यह

जरिए डिस्प्ले के टेबल गया हुआ है और यहां

से ही वायर है यह है वाईफाई का आप यहां पर

देख सकते हो यह वेरीफाई कराएगा

है तो

अब हम इसको चेक करेंगे ठीक है ना

कि

निद्रा चर्च और कॉन्वेंट

स्कूल में कनेक्ट कि यहां पर

कुछ इस तरह में कर दो

कि यहां पर देख सकते हैं यह मैंने लगा

दिया हूं और यहां पर एमपी f-35 बोलता रहा

है

35mm मतलब नहीं एंपियर आ रहा है 0.2

यहां पर ऑन करने के बाद

हैं तो जहां पर

कि जोहेब सबसे पहले हम स्किन यू विल

सरप्राइज हुए स्क्रीन को मिल रही है मिलते

हैं

है तो यहां पर आप देख सकते हैं यह रजिस्टर

है जीरो मिश्रा

कि इस प्रकार है सिरफ यहां पर तुम बारिश

से जो है

कि सुजैन

मैं आपको मैं दिखाता हूं पहले में चेक कर

लूं तो यह देखिए यहां पर वह नोरता रहा है

और

एक तरफ

स्पर्म देखिए यहां पर

0.91 चाहिए जो कि इस तरफ लेफ्ट उसके नोट

आना चाहिए और इस तरह शहद

ए माइटी मोटे आप यूज करें इस तरफ जो

10 मिनट जहां पर मुझे दिक्कत लग रही है और

भी चेक करेंगे यह जो है धोइए

कि जो स्क्रीन को 3.3 वोट मिलना चाहिए

है तो यहां पर भी ये 3.3 ओल्ड तो

मिल रहा है अब क्या देख सकते हो

में वृद्धि 3.3 चौगी जो है यह पालिका

कैपिसिटर होता है वह है ऐसी होती है

मांसपेशियों इसको बोलते हैं यह फाइल लगता

है

है तो दो

है तो सबसे पहले हम इस पीस को चेक करेंगे

थे

मोस्ट आपको एकदम क्लियर दिखा दो ना

हैं जैसे कि मैं आपको दिखा दूं कि अ

है

यह हमारे जो है इस पर कनेक्ट करें

है इसलिए कमिटल जो है डिस्टिक कलेक्टर के

यह पॉइंट आश्रम

की सप्लाई आ रही हूं मोस्ट किसी यह पर

मजबूर है इस विभिन्न शिक्षण के थ्रू हिस

साइट आ रहे हैं बट यहां से यह पीसकर यहां

से कि फिर यह साईट नहीं आ रहे कि तो यह अ

कि जो मैं आपको चेक करा दूं

कि

यह आर्म होल

मैं तेरा हीरो म्यूजिक साउंड और उसके लिए

माफी चाहता हूं

कि

जैसे के

तो यहां पर देखिए यहां पर नाम सिंह उल्टा

अब देखिए Maggi में शर्म यह साइड यहां पर

मिल जाएंगी बोलता रहा है

है लेकिन

एक सुखद त्यौहार फिनिश करेंगे इन योर

टॉयलेट यह शेड्यूल यह साइड देखिए आप यहां

पर वॉन्टेड नोल्स नहीं आ रहे जो कि प्याज

जो है वह डाइरैक्टली आगे सप्लाई कर देता

है यहां पर नोटिस नहीं आ रहा है तो कहीं

ना कहीं देख सकते हैं यहां पर प्रॉब्लम है

है तो हम इस

कि चीज को धीरे जंप कर देंगे ठीक है तो

की प्रॉब्लम कॉपी भेजिए जो कि लगता बड़ा

है

कि

अभिषेक की यहां से मिलने स्कूल चंपल दे

दिया यह ट्रैक से उतर सकते हैं

है

अब हम इसे चेक करते हैं

ई

एम चार्जर लगा दी है

कर दो

999 देखते हैं आता है या नहीं यह देखिए

बैकलेट होंगे अब देख सकते हैं यहां पर

लैपटॉप जोक ऑफ हो गया था

में चुप तो ऐसा यह जो भी नोट मीटिंग जो

होता है यह टेंशन से होता है जहां तक नौ

मैच खेले जो है वह ज्यादा डिस्प्ले का जोश

आ जाता है जो फ्यूज उड़ जाता है तभी वे

दिक्कत देता है और उपवास क्या होता है कि

एंड लीडर्स जो है इस क्रीम को नहीं मिलती

है ना तो इसका भी कभी-कभी इशू आता है डेल

के लैपटॉप इसमें जो है इस उसका भी आता है

कि जब रियल पायलट का इस उददेश्य और देख

रहे आप तो यहां पर 300 मीटिंग हो जाता है

तो इसे पर हमेशा थ्री लेटर वर्ड्स जंपर

देखकर हम इसको भी ऐड कर सकते हैं ठीक है

यहां से भी दिक्कत देती है जैसे कि आप देख

लीजिए हो गया अब कस्टमर को जो भी है बोल

सकते हैं ओं थिस सब्जेक्ट है

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