Chip Systems

Introduction:

• What is LCD&LED TV?
• Types of LCD & LED TV
• Various sizes of LCD and LED TV and its difference
• What is the difference between LCD & LED TV?
• How TV works?

LCD TV PARTS IDENTIFICATION:

• LCD TV disassembling and assembling practical

• LCD TV various parts identification

• • 1.LCD screen
  • 2.Power supply board-SMPS
  • 3.CCFL Backlight inverter board
  • 4.T-con board
  • 5.MOTHERBOARD
  • 6.Speakers
  • 7.Power switch and other switch board

BASIC ELECTRONICS:

• introduction
• what is difference between electrical and electronics
• What is current and volt?
• What is difference between AC and DC? AC current/volt,DC current /volt
• Difference between normal electronics and SMT electronics What is multimeter? How use multimeter?

Resistor:

• What are resistor and its working function?
• Types of resistor
• Resistor colour coding
• Difference between normal resistor and SMT resistor
• How find smd resistor value? And its checking method
• Resistor soldering practice

Capacitor:

• What are capacitor and its working function?
• Types of capacitor
• Difference between normal capacitor and SMT capacitor
• How find capacitor value? And its checking method
• Capacitor Farad checking method
• High volt capacitor soldering practice

INDUCTOR AND TRANSFORMER:

• What are inductor and its working function?
• Types of inductor
• Inductor checking method
• What are transformer and its working function?
• Types of transformer
• Step-down transformer checking method
• Step-up transformer checking method

DIODE:

• What are diode and its working function?
• Types of diode-rectifier diode,zener diode,LED,schottky diode
• What is bridge diode? and its function
• Difference between normal diode and SMT diode
• Diode checking method and soldering practice
• How remove bridge diode from SMPS?
• How remove and fixing Schottky diode from SMPS?

TRANSISTOR:

• What are transistor and its working function?
• Types of transistor-mosfet,PNP and NPN
• Difference between normal transistor and SMT transistor
• Mosfet and NPN checking method and soldering practice

LED TV PARTS IDENTIFICATION:

• LED TV disassembling and assembling practical

• LED TV various parts identification

• LED light string replace method

• • 1.LCD screen
  • 2.Power supply board-SMPS
  • 3.LED Backlight DRIVER board
  • 4.Backlight LED string
  • 5.T-con board
  • 6.MOTHERBOARD
  • 7.Speakers
  • 8.Power switch and other switch board

LCD & LED TV SMPS:

• 1.SMPS power supply board
• 2. What is SMPS?
• 3.Various types of LCD-LED TV smps power supply
• 4.Smps functional block diagram
• 5.External AC-DC Adapter circuit diagram and its troubleshooting tips

SMPS SECTION:

• 1.LCD TV SMPS complete circuit diagram explanation/tracing and fault finding with troubleshooting tips
• 2.SMPS Primary rectifier circuit tracing and fault finding
• 3.SMPS Secondary rectifier circuit tracing and fault finding
• 4.STR type SMPS and PWM type SMPS difference and explain
• 5.SMPS troubleshooting tips

• a. Power Fail for LCD TV or LED TV [TV Dead condition]
• b.LCD TV stand by light not ON
• c.SMPS Standby LED Blinking
• d.SMPS Standby LED ON then OFF

Student Practical:

SMPS Board Voltage checking:

• How clear SMPS excess Dc current through Test bulb?
• How check SMPS primary section high voltage?
• How check SMPS low output DC voltage?

LCD TV Backlight problem-CCFL LIGHT:

• What is inverter? And CCFL light
• LCD TV backlight inverter circuit fault finding with troubleshooting tips
• CCFL LIGHT replacing from LCD Screen
• LCD TV CCFL Backlight checking by Universal inverter

LED TV LED Backlight problem:

• What is LED backlight Driver
• How work LED Backlight Driver Circuit? And its tracing with troubleshooting method
• LED Backlight driver circuit output voltage checking method
• How Remove and Fix LED Light from LED STRING?
• How check LED Backlight through power supply?

SMPS TROUBLESHOOTING TIPS:

• Backlight inverter troubleshooting tips
• Students smps board circuit tracing practical

STUDENT SMPS BOARD SOLDERING AND DE SOLDERING WITH CHECKING PRACTICAL:

• Remove and fixing Transformer/Bridge rectifier diode/Fuse/Schottky Diode/Power Mosfet and High volt capacitor

Smps doubt clearing class

• • What is LCD TV Motherboard? and its various Brands of motherboard parts identification [Samsung/LG/sony/Panasonic etc.]
  • LCD TV Motherboard Functional Block diagram explain
  • LCD TV motherboard IC’s List
  Power supply ic’s

• • 1.Stand by LDO regulator ic [5V to 3V] Ic part number-1084/1085/AZ1117
  • 2.Tuner DC-DC controller ic
  • 3.DDR RAM LDO Regulator
  • 4.MAIN CPU [MCU+SCALER+VIDEO PROCESSOR]
  • 5.ROM IC
  • 6.DDR RAM IC
  • 7.AUDIO AMPLIFIER IC
  • 8.HDMI CONTROLLER IC and etc…

• Motherboard IC’s datasheet download and explain
• How to trace motherboard tuner circuit problem with troubleshooting tips

• a. How to check motherboard standby regulator circuit with troubleshooting tips
• b.how to check and tracing memory and audio regulator circuit with troubleshooting tips

• How check and tracing LCD screen power supply circuit with troubleshooting tips

• a. Vertical lines
• b.Horizantal lines
• c.poor LCD Images
• d.How check LCD screen panel through -LVDS TESTER
• e.LCD Screen Datasheet explain

• • a.How check CPU clock crystal through CRO? [14.3Mhz/24Mhz]
  • b.How check CPU core voltage?
  • c.How check motherboard various section voltage?

• • • a.No display problem for LCD-LED TV
    • b.When switch ON TV-but TV company logo still shows[Samsung/LG or sony]
    • c.LCD Tv Setting menu problems
    • d.LCD Tv standby LED ON, but motherboard image are not processing
    • e.LCD Screen resolution problem
    • f.LCD screen Ghost image problem
    • g.LCD Screen double image problem
    • h.Unknown faults
  How flashing ROM chip through ROM PROGRAMMER

• a. what is T.con board
• b.T.con board general fault finding
• c.various T.con board and its parts identification
• d.various T.con board common problems and symptoms