MR Electronics

MR Electronics Any Brand of LCD LED, OLED, QLED, Smart, Android, 4K / 8K UHD TV, Parts Sales & Electronics Equipment Repair Service center in Dinajpur Sadar.

✅ MR Electronics – Professional TV Repair & Electronics Service in Dinajpur

MR Electronics is a trusted and professional TV Repair & Electronics Service Center in Dinajpur Sadar. We provide expert repair solutions for All Brands LCD, LED, OLED, QLED, Smart, Android, 4K & 8K UHD TVs. Our experienced technician ensures fast diagnosis, original parts replacement, and long‑lasting repair solutions at affordable prices.


✅ Our Services:

✔ LCD / LED TV Repair
✔ OLED / QLED TV Service
✔ Smart & Android TV Software Fix
✔ 4K / 8K UHD TV Repair
✔ TV Motherboard & Panel Repair
✔ TV Parts Sales (Original & Compatible)
✔ Electronics Equipment Repair
✔ Same‑Day Home Service Available in Dinajpur


✅ Why Choose MR Electronics?

✅ Skilled & Experienced Technician
✅ Affordable Service Charge
✅ Quick & Reliable Repair
✅ Genuine Parts Support
✅ Trusted Local Service in Dinajpur


👨‍🔧 Service Technician:
MD. Mamunur Rashid

📞 Mobile: 01788188133

📍 Address:
Buti Babur Mor – Lily Mor Road
Opposite Bank Asia (2nd Floor)
Dinajpur Sadar, Bangladesh

📌 Call now for professional TV repair & home service in Dinajpur.

Types of Wrenches01. Open End WrenchFeatures an open U-shaped jaw designed to grip nuts and bolts.02. Combination Wrench...
05/10/2026

Types of Wrenches

01. Open End Wrench

Features an open U-shaped jaw designed to grip nuts and bolts.

02. Combination Wrench

Combines an open end on one side with a box end on the other for versatile use.

03. Box End Wrench

Uses enclosed ring ends to provide a secure grip on fasteners.

04. Adjustable Wrench

Its adjustable jaw accommodates various sizes of nuts and bolts.

05. Ratcheting Wrench

A built-in ratcheting mechanism allows continuous turning without removing the wrench after each turn.

06. Torque Wrench

Applies a specific amount of torque, helping fasten bolts to the required tension.

07. Allen Wrench

L-shaped hex keys designed for hex socket screws.

08. Pipe Wrench

Designed to grip and turn pipes and round fittings securely.

09. Impact Wrench Socket

Designed for use with impact tools in high-torque applications.

10. Strap Wrench

Uses a flexible strap to grip and turn round or irregularly shaped objects.

11. Chain Wrench

Uses a chain loop to grip pipes or other round objects securely.

12. Spanner Wrench

Its hooked design is used for gripping round nuts and collars.

Quick Tips

Use the right wrench for the job.

Make sure the wrench fits properly to help avoid damage.

Apply steady force for safer handling.

Keep your tools clean and well-maintained.

Disclosure: This content was created or enhanced using AI tools for creative and educational purposes.

SMD Transistors: Quick Reference GuideWhen you need to identify an SMD transistor quickly, the marking on the package ca...
05/10/2026

SMD Transistors: Quick Reference Guide

When you need to identify an SMD transistor quickly, the marking on the package can save a lot of time. This reference groups common PNP and NPN transistors with their corresponding SMD markings, VCEO ratings, and maximum collector current.

PNP Transistors

- A09T — VCEO: -20V, IC: -500mA, Type: PNP
- A19T — VCEO: -20V, IC: -500mA, Type: PNP
- A29T — VCEO: -20V, IC: -500mA, Type: PNP
- A79T — VCEO: -20V, IC: -500mA, Type: PNP

NPN Transistors

- S9012 = 2T1 — VCEO: 20V, IC: 500mA, Type: NPN
- S9013 = J3 — VCEO: 20V, IC: 500mA, Type: NPN
- S9014 = J6 — VCEO: 45V, IC: 100mA, Type: NPN
- S9015 = M6 — VCEO: 45V, IC: 100mA, Type: NPN
- S9018 = J8 — VCEO: 15V, IC: 45mA, Type: NPN
- S8050 = J3Y — VCEO: 40V, IC: 700mA, Type: NPN

Package Pinout

The SMD package pinout shown is the Top View:

Pin 1: Emitter
Pin 2: Base
Pin 3: Collector

The guide also defines VCEO as Collector-Emitter Voltage and IC as Collector Current (Max). Keep the package orientation in mind when checking a transistor on a PCB, because a correct marking with the wrong pin orientation can still lead to a very incorrect repair. Humanity did invent datasheets for a reason.

Disclosure: This content was created or enhanced using AI tools for creative and educational purposes.

05/10/2026

Automatic Voltage Stabilizer
Zero-cross transfer technology

Types of Fuses: Common Fuse GuideFuses are designed to protect electrical and electronic circuits from excessive current...
05/10/2026

Types of Fuses: Common Fuse Guide

Fuses are designed to protect electrical and electronic circuits from excessive current. Different fuse types use different construction methods and are suited to different applications.

1. Glass Fuse

A glass tube with metal end caps and an internal fuse element. Common sizes include 5×20 mm and 6×32 mm. These are commonly used in general electronics.

2. Ceramic Fuse

This type uses a ceramic body with metal end caps. The 5×20 mm size is common, and ceramic construction is typically used where a higher breaking capacity is required.

3. SMD Fuse

An SMD fuse is a surface-mount device with metal end caps. Common series include 1206, 0603, and 2410 (varies). It is used for PCB overcurrent protection.

4. Automotive Fuse (Blade Type)

A blade-type automotive fuse has a plastic body with two metal blades. The current range shown is 2 A–40 A. These fuses are commonly used in automotive electrical systems.

5. Thermal Fuse

A thermal fuse opens the circuit when the temperature exceeds a set point. Its typical application is overheat protection, where the fuse responds to excessive temperature rather than simply relying on current.

6. Time Delay Fuse

A time-delay fuse contains a time-delay element designed to withstand inrush current. It is commonly used with motors, transformers, and power supplies, where temporary starting current can be higher than normal operating current.

7. PTC Resettable Fuse

A PTC resettable fuse can reset automatically after the fault is cleared. It is commonly used for overcurrent protection in electronic circuits, providing a reusable alternative to a conventional one-time fuse.

8. High Power Fuse (Bolt-In / Strip)

This fuse is built for high-current applications and uses bolt-in or strip terminals. Typical applications include inverters, power distribution, and industrial equipment.

Quick Reference

A fuse should always be selected with the appropriate current rating and voltage rating for the application. The right fuse acts as a controlled interruption point when circuit current or temperature exceeds its intended limit.

Disclosure: This content was created or enhanced using AI tools for creative and educational purposes.

Types of Inductors: Essential Guide to Inductor Types and Their UsesInductors come in many forms, and their construction...
04/10/2026

Types of Inductors: Essential Guide to Inductor Types and Their Uses

Inductors come in many forms, and their construction helps determine where they work best. This guide covers 12 common inductor types, along with their listed inductance ranges, current capabilities, and typical applications.

1. Air Core Inductor

Inductance: 10 nH–1000 nH

Current: Up to several amps

Uses: High-frequency, RF circuits

2. Iron Core Inductor

Inductance: 10 µH–10 mH

Current: Up to several amps

Uses: Power supply filters

3. Ferrite Core Inductor

Inductance: 1 µH–100 mH

Current: Up to several amps

Uses: EMI suppression, filters

4. Toroidal Inductor

Inductance: 1 µH–10 mH

Current: Up to several amps

Uses: Power supplies, EMI filters

5. Drum Core Inductor

Inductance: 10 µH–100 mH

Current: Up to several amps

Uses: RF circuits, filters

6. Variable Inductor

Inductance: 10 pH–1000 µH

Current: Up to 1 A

Uses: Tuning, RF applications

7. Choke Inductor

Inductance: 1 µH–10 mH

Current: Up to several amps

Uses: Power filtering

8. SMD Inductor

Inductance: 10 nH–100 µH

Current: Up to several amps

Uses: Power, RF circuits

9. Coupled Inductor

Inductance: 1 µH–10 mH

Current: Up to several amps

Uses: Power, noise filters

10. Power Inductor

Inductance: 0.1 µH–100 µH

Current: Up to tens of amps

Uses: DC-DC converters

11. Common Mode Inductor

Inductance: 1 mH–100 mH

Current: Up to several amps

Uses: EMI suppression

12. Axial Inductor

Inductance: 1 µH–10 mH

Current: Up to several amps

Uses: General purpose

Understanding the Key Ratings

Inductance (L): Measured in henry (H), inductance indicates an inductor's ability to store energy in a magnetic field.

Current (I): The maximum current the inductor can handle without saturation or overheating.

Uses: Common applications where each inductor type is used.

Disclosure: This content was created or enhanced using AI tools for creative and educational purposes.

Types of Electrical SwitchesElectrical switches come in many forms, and each one is designed for a particular way of con...
04/10/2026

Types of Electrical Switches

Electrical switches come in many forms, and each one is designed for a particular way of controlling or detecting a circuit. Here’s a clear guide to the switch types shown in the reference:

Toggle Switch
A simple ON/OFF switch operated with a lever.

Rocker Switch
A rocker-style switch that tilts back and forth to change its state.

Push Button Switch
A momentary switch that activates when pressed.

Rotary Switch
A rotary k**b selects between different positions.

Illuminated Switch
A switch with a built-in light that indicates its status.

Slide Switch
The actuator slides from one position to another to change the switch state.

Micro Switch
A small, precise switch commonly used for detection and logic applications.

Limit Switch
A switch used to detect motion or position limits in machinery.

DIP Switch
A group of small switches packaged together for setting multiple options.

Selector Switch
A selector k**b is used to choose one of multiple operating modes.

Key Switch
A key is used to turn the switch ON or OFF.

Float Switch
A float rises or falls with the liquid level and changes the switch state.

Different switch designs suit different control, detection, and selection tasks. Choosing the right type depends on how the circuit needs to be operated or monitored.

AI Disclosure: This content was created or enhanced using AI tools for creative and educational purposes.

Basic Electronic ComponentsElectronic circuits are built from a relatively small set of fundamental components. Each one...
02/10/2026

Basic Electronic Components

Electronic circuits are built from a relatively small set of fundamental components. Each one has a specific job, from controlling current and storing energy to switching signals and providing power.

1. Resistors (R)

Resistors limit current and divide voltage within a circuit. Common forms include through-hole resistors and SMD resistors.

2. Capacitors (C)

Capacitors store and release electrical energy. Electrolytic capacitors are polarized, while ceramic capacitors are non-polarized.

3. Inductors (L)

Inductors store energy in a magnetic field and resist changes in current. They are available in both through-hole and SMD forms.

4. Diodes (D)

Diodes allow current to flow primarily in one direction. A standard diode has an Anode (+) and Cathode (−), and both through-hole signal diodes and SMD diodes are widely used.

5. Transistors (Q)

Transistors are used to amplify or switch electronic signals. Common transistor configurations include NPN and PNP, with terminals identified as B (Base), C (Collector), and E (Emitter).

6. LEDs

LEDs, or Light Emitting Diodes, emit light when current flows through them. Common LED colors include Red (620–750 nm), Green (495–570 nm), and Blue (450–495 nm). Like a standard diode, an LED has an Anode (+) and Cathode (−).

7. Integrated Circuits (ICs)

Integrated circuits perform complex electronic functions within a compact package. They are available in different package formats, including DIP and SMD IC packages.

8. Switches

Switches manually open or close a circuit. A Toggle Switch and Push Button are two common examples used to control electrical connections.

9. Power Sources

Power sources provide electrical energy to a circuit. Common examples include a Battery and DC Adapter.

10. Circuit Boards

Circuit boards provide mechanical support for components while also providing the electrical connections needed to build a working circuit. Through-Hole PCB and SMD PCB are two common board assembly styles.

Disclosure: This content was created or enhanced using AI tools for creative and educational purposes.

Types of Batteries: A Practical GuideBatteries come in many shapes, sizes, and chemistries, and each type is designed fo...
01/10/2026

Types of Batteries: A Practical Guide

Batteries come in many shapes, sizes, and chemistries, and each type is designed for a different job. Here’s a straightforward guide to 12 common battery types and their typical uses.

1. Lead Acid Battery
Automotive / 12V
Commonly used in cars and trucks. Lead acid batteries are reliable and cost-effective.

2. Alkaline Battery
AA, AAA, C, D, 9V
Widely used in everyday devices. These batteries are not rechargeable.

3. Lithium-Ion Battery
3.7V / Rechargeable
Lightweight and known for high energy density. Commonly used in electronics and power tools.

4. Lithium Polymer Battery
Li-Po / Rechargeable
Flexible and lightweight, making this battery type common in drones and other gadgets.

5. Nickel Metal Hydride Battery
NiMH / Rechargeable
Rechargeable and described as environmentally friendly. Used in many types of devices.

6. Nickel Cadmium Battery
NiCd / Rechargeable
Known for durability and performance in demanding or extreme conditions.

7. Button Cell Battery
3V / Coin Type
Small and compact. Commonly used in watches, calculators, and remote controls. The example shown is a CR2032 3V coin cell.

8. Zinc Carbon Battery
AA, AAA / 1.5V
An affordable option for low-drain devices. It is not rechargeable.

9. Lithium Primary Battery
9V
Designed for long shelf life and high performance in 9V devices. This is a primary, non-rechargeable battery type.

10. GEL Battery
Deep Cycle / 12V
Sealed and maintenance-free, with applications that require deep-cycle operation.

11. AGM Battery
Maintenance Free / 12V
Spill-proof and reliable. Commonly used in vehicles and backup power applications.

12. Deep Cycle Battery
Solar / 12V
Designed for repeated charging and discharging. Common applications include solar systems and RVs.

Knowing the battery type, voltage, and intended application helps you choose the correct power source and avoid treating every battery like it came from the same mysterious drawer in the workshop.

Disclosure: This content was created or enhanced using AI tools for creative and educational purposes.

MR Electronics.All types of electronics repair service center near Dinajpur Sadar Upazila.LCD and LED TV repair technici...
30/09/2026

MR Electronics.

All types of electronics repair service center near Dinajpur Sadar Upazila.

LCD and LED TV repair technician of any brand.

Service technician:
Md. Mamunur Rashid.

01788188133.

Address: Buti Babur Mor - Lily Mor Road, Opposite Bank Asia (2nd Floor), Dinajpur Sadar Upazila.

Address

Dinajpur

Telephone

+8801788188133

Website

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