Insane

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মুখ্যপৃষ্ঠা যাবলৈ ইয়াত ক্লিক কৰক
মোবাইল ফোনৰ পিচিবি (PCB)

যেতিয়া এটা মবাইলফোন মেৰামতি কৰিবলৈ শিকা হয়, তাৰ আগতে আমি তাৰ যন্ত্ৰাংশ আৰু পিচিবি(PCB printed circuit board)ৰ অংশ সমুহৰ বিষয়ে ভালদৰে জনাতো অতি গুৰুত্বপূৰ্ণ । এই অংশ তথা উপাদান সমুহৰ বিষয়ে ভালদৰে জানিলে এটা মোবাইল ফোন মেৰামতি কৰা ইমান কঠিন নহয় ।


Nokia, Samsung, Motorola, China Mobileকে আদি কৰি সকলো ধৰণৰ মোবাইল ফোনৰ পিচিবি দুটা ভাগত বিভক্ত । ভাগ কেইটা হৈছে (1) Network Section আৰু
(2) Power Section । ইয়াৰ চিত্ৰ তলত দিয়া হৈছে । এটা মোবাইল ফোনৰ পিচিবিৰ অংশসমূহ , ইলেক্টনিক কম্পনেন্ট আৰু IC সমুহ চিনাক্তকৰণৰ ক্ষেত্ৰত এই ভাগ দুটাৰ ভূমিকা আছে ।


IMG 20160717 130418 2

How to Identify Parts and Components on the PCB of a Mobile Cell Phone:

1. Antenna Point: The point where antenna is connected is called antenna point. It is normally located at the top of the PCB of a mobile phone.


Network Section : The section below
antenna point and above power section is called network section.


2. Antenna Switch : It is found in the
network section. It is made from metal and non-metal. It has 16 points or legs. In some mobile phones, the antenna switch is merged with PFO.


IMG 20160717 181059 1

3. PFO: Power Frequency Oscillator. It is present beside the antenna switch.


IMG 20160717 181257
4. Network IC: It is below or beside the antenna switch and PFO. In some mobile phones, the Network IC is merged with the CPU. E.g.: Nokia 1200, 1650, 1208, 1209 etc.
IMG 20160717 184749
Power Section : This section is below the Network Section.
5. Power IC: In the Power Section, the IC around which there are several brown-colored capacitors is called Power IC. In some mobile phones there are 2 Power ICs.
IMG 20160717 184858

6. CPU: Central Processing Unit. In the power section, the largest IC is the CPU. In some sets there are 2 CPU.
IMG 20160717 211150

7. Flash IC: This IC is found beside the CPU.
IMG 20160717 211235

8. Logic IC: The IC with 20 legs is the Logic IC.
IMG 20160717 211315

9. Charging IC: In the Power Section, the IC beside R22 is the Charging IC.
IMG 20160717 214024

10. Audio IC: The IC parallel to Power IC is the Audio IC.
IMG 20160717 212855


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✓ Parts of a Mobile Cell Phone and Their Function (Big Parts)
✓ Small Parts / Electronic Components of Mobile Phone and Their Function
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