The Hidden Fault Behind Your Inverter AC Display Failure!
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- Опубликовано: 15 сен 2024
- In this video, I dive deep into the mysterious failure of an inverter AC indoor display and uncover the hidden fault causing the problem. After facing various challenges and situations, I traced the issue to a faulty microcontroller within the display itself. Unfortunately, without a replacement programmed microcontroller, I couldn't fully repair it. However, I'll show you the step-by-step process I used to diagnose and identify the fault, and I'll explain why replacing the entire display might be the best option. If you're dealing with inverter AC issues or curious about how to troubleshoot and repair AC PCBs, this video is for you! Watch as I share insights, tips, and detailed analysis to help you understand and possibly fix similar problems in your own AC units.
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#forevertech #acrepair #inverterac #microcontroller #pcbrepair #diyrepair #airconditioner #troubleshooting #electronics #technicalanalysis
आपका प्रेजेंटेशन बहुत जबरदस्त है आप बहुत अच्छी तरीके से समझते हो और हमें एक ही बार में समझ में आ जाता है यूट्यूब पर ऐसे कंटेंट की जरूरत है ऐसे कंटेंट लेट रहे हम आपके साथ हैं मैंगुजरात से हूं
आपकी सराहना के लिए धन्यवाद बहुत मायने रखता है
Ustad ji tusi great ho ❤
Thanks
Nice video sir. And how to enabled auto restart pel non inverter ac.
Nice Sharing Sir
Thanks
sir, please EK video for microscope discuss current
ok
Hoga ho sakta he Kisi cheez mein shorting ho
Sir क्या DIRECT DRIVE WASHING MACHINE me gear box problem कम आती है.
Will make a video on it, when i get one.
Aoa brother Haier AC hai us indoor mea E7 error hai plz us KO bi explain k day
Video already maded
@@ForeverTechh ok
Ye hua he mere sath swing motor short thi wo nikali to pcb on gya tha gree DC inverter new model tha
yes hota hai shorting sai problem...
May be an amazing video for a layman..... But technically useless video😂
How is it technically useless, elaborate?
@@ForeverTechh You did not check the +5 volt supply of the display PCB and declared the Micro Controller IC faulty after checking two small and one Electrolytic capacitors in the circuit . Absence of Five volt supply may be the cause of the fault.
I think you don't get it then, after removing the ceramic and one electrolytic capacitor, i think you didn't notice that the capacitor soldering pads were still showing short with each other, which is a big indication of MCU being faulty. The voltages were passing through the display circuit but due to the short it was not letting the main board to work. I have experienced such shortages in many PCBs when the microcontroller goes bad, the whole board will show short, as all pins are eventually interconnected with the MCU. I think you might be cleared now. And yes I have fixed such boards after replacing Microcontroller. Also do notice that short was disappeared after removing the MCU.
@@ForeverTechh
Shorting or shortages are commonly used in English but both words are not suitable to be used here in this case of Electronic circuits.
Coming to the topic, Let me elaborate it in Urdu.
کسی الیکٹرانک سرکٹ کی ٹربل شوٹنگ کا آغاز اس کی پاور سپلائی سے کیا جاتا ھے۔ یہ ایک یونیورسل تھمب رول ھے۔ اس بورڈ میں Well Regulated سرخ(+)5v اور کالی (-) Gnd ھے. اور باقی دو تاریں ڈاٹا Transmit & Receive کیلئے ھیں۔ یہ 5 وولٹ IR اور ICs کو سپلائی دینے کے علاوہ ڈسپلے کے 17 عدد LEDs کو بالترتیب روشن کرنے کیلئے ھے۔ اور ڈسپلے کی ان تمام LEDs کو Drive کرنے کیلئے 5 وولٹ سپلائی Q1-Q2 اور Q3 کے کولیکٹرز سے کنٹرول ھوکر ملتی ھے۔ اگر ان مذکورہ ٹرانزسٹرز میں پارشل یا مکمل شارٹ سرکٹ ھو جائے تو نہ ڈسپلے آن ھوگا اور نہ ھی AC. آپ کو سٹیپ بائی سٹیپ proceed کرنا چاہیئے تھا نا کہ جمپ کرکے سیدھا .I.C خراب ھے کہہ کرھینڈز اپ کر دینا چاہیئے تھا۔ جن سرامک اور الیکٹرولائٹک 47uf کپیسٹرز کو ڈی سولڈر کیا اس کی ضرورت نہیں تھی۔ آپ کی وڈیو ھم جیسے شاگردوں کو سکھانے کیلئے ھوتی ھے اس لئے جمپ/ سٹارٹ مفید نہیں ھوتا۔
امید ھے آپ سمجھ گئے ھونگے۔ میں پرانا سبسکرائبر بھی ھوں۔
Sir,
Well replied
In India
One song is there of Rajesh Khanna
Kuch tuh log kahege
Logon kaam hai kahena
And so on
We love you ❤❤