TV Technician

A TV technician's process involves customer interaction, diagnosis, repair/replacement, and testing, starting with understanding the issue (no picture, sound, etc.), disassembling the set using schematics, identifying faulty components (like power supply boards, fuses, or PCBs) using tools, replacing or fixing them (soldering, realigning), and finally testing the TV for full functionality, ensuring clear audio/visuals before explaining proper usage to the customer. 

The Step-by-Step Process

1. Customer Interaction & Information Gathering:

   • Confirm the reported problem (e.g., "no power," "no picture," "lines on screen").

   • Ask about the TV's history, age, and if any recent events (like a power surge) occurred.

   • Check warranty/AMC status and estimate potential costs.

2. Diagnosis & Troubleshooting:

   • Initial Check: Verify basic connections (cables, input/source settings) and external devices (cable box, antenna).

   • Physical Inspection: Open the TV casing (bezels, metal frames) to access internal boards.

   • Schematic Study: Use manufacturer diagrams to trace circuits and find the fault's origin.

   • Component Testing: Use multimeters to test power supply (SMPS), mainboard, T-CON board, or backlights for issues like blown fuses or bad capacitors/ICs.

3. Repair/Replacement:

   • Component Swap: Replace defective parts like power boards (SMPS), mainboards, or LED strips.

   • Board Repair: Fix issues on boards, such as re-soldering dry joints or replacing specific capacitors/resistors.

   • Adjustment: Perform picture/focus adjustments or realign color balance if needed.

4. Testing & Finalization:

   • Reassemble the TV and test all functions (power, picture quality, sound, inputs).

   • Educate the customer on the fix, how to care for the TV, and any settings changes. 

Key Tools & Skills Used:

• Screwdrivers, pliers, soldering iron.

• Multimeter, oscilloscope (for advanced checks).

• Service manuals/schematics.

• Patience, problem-solving, and good communication. 

• It is a Full Time Technician job for candidates with 6 months - 6+ years Experience.