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| Hardware Equipments for GSM All about Hardware Instruments and equipments like Soldering Stations, Hardware Tools, Oscilloscopes , Frequency Counters ..ext. |
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04-14-2007, 05:55
| #32 (permalink) |
| No Life Poster   Join Date: Aug 2005 Location: SILIGURI Age: 35
Posts: 907
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| Mobile Phone With A Display Problem We Changed Many Lcd But No Result, But We Are Not Sure That Either Track Is Open Or Display Ic Problem Or Lcd Dosen't Matches |
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04-14-2007, 06:49
| #33 (permalink) |
| No Life Poster Join Date: Aug 2005 Location: SILIGURI Age: 35
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| Display As For Example We Will Record It From Good Running Set As Per As Our Measurement Theory Put The Positive Prob In A Ground And Negative Prob In A Target Point Where To Measure Nokia 3310 Display Track As Follow |
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04-14-2007, 11:13
| #35 (permalink) |
| No Life Poster  Join Date: Nov 2005
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| ofcourse its old tips...anyway,keep going...bcoz,for a perfect idea in basic electronics..all these should be followd... i fully support u,my frnd... its worthy for all electronics service guys...not only for mobile service ppl good luck.. hai to all...kndly make this thread sticky.. share ur knowledge here&also ask ur tecnical doubts... |
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04-14-2007, 13:39
| #36 (permalink) | |
| No Life Poster  Join Date: Mar 2003 Location: India Age: 62
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| Quote:
Thanks yashtel ! BASIC but VERY GOOD WAY TO CHECK FOR BEGINNERS ! EXPERTS, PLEASE ENCOURAGE SUCH POSTS, NOT DISCOURAGE. | |
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04-15-2007, 07:18
| #37 (permalink) |
| No Life Poster Join Date: Aug 2005 Location: SILIGURI Age: 35
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| I think we need some notes regarding mobile hardware initially we should note regarding the common faults such as mic, speaker, ringer etc. As the procedure to measure positive prod of multimeter to ground and negative prod to a target point in a ohms range or buzzer range. In a good and running set we would measure the value of mic point, speaker point, ringer point, lcd point etc, according to the model and make and note it on a fair. In regarding to fault such as ringer from board in a set we mesure it and match it from our note and if singl or both the point differ from out note than it might be faulty from that track we should check it from first point to the last. If we follow these rules than the faults from board would be much more easy. |
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04-15-2007, 07:22
| #38 (permalink) |
| No Life Poster Join Date: Aug 2005 Location: SILIGURI Age: 35
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| Note: The value we have noted in our fair, would differ littlebit, our measurement is in approximate value. As per as i have seen it differ from climate. For example you will find the difference in measurement in Normal Room Temperature, and Air Conditioned Room. |
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04-15-2007, 07:49
| #39 (permalink) |
| No Life Poster  Join Date: Jun 2005 Location: Punjab , INDIA
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| you cannot check clock signal by this method this is only to check continuity. If you use wrong meter ( with low input impadance ) you can easily damage your phone. |
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04-15-2007, 08:42
| #40 (permalink) |
| No Life Poster Join Date: Aug 2005 Location: SILIGURI Age: 35
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| I think you are talking about the carrier signal and you hasn't read the total post this measurement is totally based on reverse bias. |
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12-25-2007, 15:24
| #45 (permalink) |
| Freak Poster  Join Date: Mar 2007
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| Really nice job you must continue it. plz can you share the information with us about, diode, ciramic capicitor, and more component which need to measurement in mobile phones how to take value. i think it will be also very help full for new learner. thanx |
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