AC Repairing Course | AC Repairing Institute in Delhi

Multitech Institute is the best AC Repairing institute in Delhi.We give practical based classes for AC Repairing course.
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1. (An ISO 9001:2015 Certified Institute)

29/4 A, 2ND FLOOR, BEHIND TILAK NAGAR METRO GATE NO. 3,
TILAK NAGAR, NEW DELHI-18
MOBILE: [phone]
EMAIL: [email protected]
Website: www.multitechinstitute.com

AC / Fridge / Washing Machine /
Microwave PCB Repairing Course
What will you learn in this course?
❖ Complete PCB Circuit Repair
❖ Inverter & Non-inverter PCB Repair
❖ Split & Window AC PCB repair
❖ Advance Level Training with advance tools
❖ Training with circuit diagram
❖ Power Supply - SMPS, Linear, Buck Converter
❖ All types of Problem Diagnosis & Solve
❖ All types of companies PCB repair
❖ Inverter & Non-Inverter Technology
❖ Latest Generation Inverter PCB Repairing Tricks
❖ Hidden Trick of Inverter & Non-inverter PCB Repair
❖ Making & Repairing Touch pad / Keypad

2. SYLLABUS

❖ Basic Electronics
• Introduction of (Volt, current, Watt)
• Introduction of (AC/DC)
• How to Use Digital Multimeter

❖ Identification of Electronics Components
• Resistor, Capacitor, Transistor, Mosfet, Diode, Crystal, IC,
Transformer, Fuse, Jumper, Thermistor, Switch, Coil, Relay,
TRAIC, Bipolar IC, IGBT, IPM, PFCM etc.
❖ Resistor
• Denoting Letter of Resistor
• Identification & testing
• Color Coding Concept
• SMD Resistor Value
• Type of Resistor
❖ Capacitor
• Denoting Letter of Capacitor, what is Symbol
• What is capacitor
• Types of capacitor
• Capacitor Testing
❖ Diode
• Denoting Letter and Symbol of Diode
• Working concept of Diode
• Types of Diode?
• Bridge Rectifier Diode Concept
• Testing of Diode
❖ Transistor
• What is symbol and denoting letter of transistor
• Working concept of transistor
• Types of transistor
• SMD and normal transistor identification
• Testing of transistor
❖ Mosfet
• What is denoting letter and symbol of Mosfet
• Working concept of Mosfet
• Types of Mosfet
• Testing of Mosfet

3. ❖ Components

1. IGBT
• Identification
• Working
• Testing

2. Triac
• Identification
• Working
• Testing

❖ Coil
• What is denoting letter and symbol of coil.
• Looking concept of coil (Inductor)
• Types of coil
• Testing of all types coil

❖ IC/chip
• Identification of IC
• Working concept of IC
• Testing of IC on board

❖ Transformer
• What is Denoting letter and symbol of Transformer
• Working Concept of Transformer
• Types of Transformer
• Testing of Transformer

❖ Crystal
• What is symbol of crystal
• Working concept of symbol
• Testing of crystal
❖ Fuse
• What is symbol and denoting letter of Fuse
• Working concept of Fuse
• Testing of Fuse
❖ Thermistor
• What is denoting letter and symbol of Thermistor
• Working of varistor
• Types of Thermistor
• Testing of Thermistor
❖ Varistor

4. • Denoting letter and symbol of Varistor
• Working of Varistor
• Testing of Varistor
❖ Battery
• Working concept of Battery
• Testing of Battery

❖ Switch
• Jumper
• Connector
• Regulator IC
• Opto coupler

❖ Main AC Electronics Components & Parts
• Compressor working, problem and solution.
• AC/DC Motor working, problem and solution.
• Contactor working, problem and solution.
• Relay working, problem and solution.
• Regulator IC working, problem and solution.
• TRIAC working, problem and solution.
• SSR- Solid State Relay working, problem and solution.
• Bio polar Liner IC working, problem and solution.
• 7 Segment LED Display working, problem and solution.
• Buck Converter IC working, problem and solution.
• IGBT- Insolated Gate Bipolar Transistor working,
problem and solution.
• IPM- Intelligent/Inverter power Module working,
problem and solution.
• PFCM- Power Factor Correction Module working,
problem and solution.

❖ Soldering & De-soldering Practice
• How to remove & sold all types components in AC
Like as – Resistor, Capacitor, Diode, Transistor, mosfet etc.
❖ Basic of AC
• About Details of AC Type
• What is ton in AC System

5. • How to Calculate Best AC Ton for Room Size
• Details of Non-Inverter AC
• Details of Inverter AC
• Details of Dual Inverter AC
• About AC related Parts
• About AC Basic Problem


AC PCB ALL SECTION

➢ Inverter And Non-Inverter Section

❖ Indoor
1. Power Supply
• Linear Power Supply
• SMPS Power Supply
• Buck Converter Power Supply
2. Regulation Section
3. Relay Section
4. Bipolar Linear IC ( 2003,2002 )
5. AC Swing Motor
6. DC Swing Motor
7. Buzzer Section
8. MCU ( Micro Controller Unit )
9. Crystal
10. Eeprom
11. Voltage Detector IC ( Low Voltage Detector )
12. Key Pad Section ( Window AC )
13. Power On-Off ( Split AC )
14. Display Section
15. Led- Indication Section
16. IR-Remote Section
17. Blower Motor Section
• AC Motor
➢ AC 3 Speed Motor
➢ AC PG Motor

6. • DC Motor
➢ BLDC Motor
➢ DC PG Motor

18. Zero Crossing
19. Comperator IC

❖ Types of AC
✓ Window AC
➢ Mechanical Section
1. Window AC Section details
2. Fan motor working, problem and solution.
3. Compressor working, problem and solution.
4. Capacitor working, problem and solution.
5. Swinger Blade working, problem and solution.
6. PCB Section working, problem and solution.

➢ PCB Section
• Power Supply (TFR (Linear) & SMPS)
• Regulation
• Relay Section
• Micro Controller
• Thermistor
• Power Relay
• Display / Keypad / IR / Indication
• Burzor Beep Sound

✓ Split AC
➢ Non-Inverter Section
• Indoor Unit working, problem and solution.
• Outdoor Unit working, problem and solution.
• Power / SMPS working, problem and solution.
• Regulation working, problem and solution.
• Relay working, problem and solution.
• Swinger Blade working, problem and solution.
• Power Relay working, problem and solution.
• Micro Controller working, problem and solution.

7. • BIOS / Crystal working, problem and solution.
• Display / Indication / Keypad / IR working, problem and solution.
• Outdoor Unit working, problem and solution.
• Connection working, problem and solution.
• Connector working, problem and solution.
• Outdoor Fan working, problem and solution.
• Compressor working, problem and solution.

INVERTER AC OUTDOOR PCB

➢ All Section
• Outdoor PCB Power Supply ( High Line )
• DC Convert Section
• PFC Section
• IGBT Gate Driver Circuit
❖ Opto-Couplor Base
❖ Transistor Base
❖ IC Base

• AC Link
• DC Link
• Pre DC Link
• DC Link
• Outdoor Power Supply
❖ SMPS Power Supply
❖ Buck Converter Power Supply

• Regulation Section
• Biplolor Linear IC Section
• MCU ( Micro Controller Unit )
• Eeprom
• Crystal
• Low Voltage Detector IC
• Outdoor Thermistor ( Sensor ) Section
❖ Ambient Sensor

8. ❖ Suction Sensor
❖ Discharge Sensor
❖ OLP( Over Load Protection )

• Outdoor Fan Motor Section
❖ AC Fan Motor
❖ DC Fan Motor

• EEV ( Electronic Expansion Valve)
• SPN ( Smart Power Module )
• Oad Indication
• OCP ( Over Current Protection )
• Communication

➢ Inverter AC
• Split AC Indoor & Outdoor Details
• Power Supply working, problem and solution.
• Regulation working, problem and solution.
• DC Fan Motor working, problem and solution.
• Controller working, problem and solution.
• Crystal / BIOS working, problem and solution.
• Bipolar Cleaner IC working, problem and solution.
• Display / IR / Keypad / Indication working, problem
and solution.
• Swinger Motor working, problem and solution.
• Thermistor (sensor) working, problem and solution.
• Communication Section working, problem and solution.

➢ Outdoor Section
• Power Supply working, problem and solution.
• Regulation working, problem and solution.
• PFC Section working, problem and solution.
• Micro Controller working, problem and solution.
• Sensor working, problem and solution.
• Invertor Section working, problem and solution.
• Communication working, problem and solution.

9. • Compressor working, problem and solution.
• Fan Motor working, problem and solution.


❖ AC esa dkSu - dkSu lk Problem vkrk gS
• AC Cooling ugha gks jgk gS |
• AC ckj - ckj Trip dj jgk gS |
• AC में Air Flow de vk jgk gS |
• AC Swinger Blade dke ugha dj jgk gS |
• AC Temp. de ;k T;knk ugha gks jgk gS |
• AC में ckj - ckj Gas Leakage Problem gksrk gS |
• AC में Coil dks Coating dSls djsa |
• AC ON ugha gks jgk gS |
• AC में Cooling Coil ij cQZ D;ks terk gS |
• AC का Remote dk;Z ugh dj jgk gS |
• AC में Error Code D;ks vkrk gS |
• AC में Error code dks Read dSls djs
• AC में Error code dh Problem Solve dSls djs |
• AC का Compressor ckj – ckj बंद होना |
• AC ON होकर कुछ सयम बाद बंद हो जाना |
• AC में से शोर आना |
• AC के Indoor में झाग बनान |
• AC की body में Current आना |
• AC ckj - ckj On-Off – On-Off होना |
• AC में Error code ckj – ckj Change होना |
• AC के Indoor से पानी ननकलना |
• AC में Display काम नहीं करना |

10. FRIDGE PCB

❖ All Section Single Door/Double Door
• Power Supply
➢ Linear Power Supply
➢ SMPS Power Supply
➢ Buck Converter Power Supply
• Regulation Section/DC to DC Converter
• Relay Section
• Bipolor Linear IC
• Buzzer Section
• Heater Section
• Thermistor Section ( Double Door )
• Thermistor Section ( Single Door )
• Fan Motor Section
➢ C-Fan
➢ F-Fan
➢ R-Fan
• MCU ( Micro Controller Unit )
• Crystal
• Eeprom
• Low Voltage Detector IC
• Test Button
• Led Indication
• Display Section
• AC Link
• DC Link
• IPM ( Intelligent Power Module )
• OCP ( Over Current Protection)
• Communication

11. ❖ Fridge
• Basic of Fridge
• Type of Fridge – Direct Cool & Non frost
• Type of Technology about inverter & Non-Inverter
• Type of PCB
• Logic Circuit working, problem and solution.
• Power Supply working, problem and solution.
• Linear IC working, problem and solution.
• SMPS working, problem and solution.
• Buck Converter working, problem and solution.
• Regulation working, problem and solution.
• Relay Section working, problem and solution.
• OLP Use, working, problem and solution.
• Thermistor Use, working, problem and solution.
• Heater – Section working, problem and solution.
• MCU working, problem and solution.
• Crystal – Section working, problem and solution.
• Thermistor Section working, problem and solution.
• Fan Motor Section working, problem and solution.
• Communication working, problem and solution.
• Led – Indication working, problem and solution.
• Display Section working, problem and solution
• Inverter & Non-Inverter Technology
• Inverter Circuit working, problem and solution.
• IPM working, problem and solution.
• All Type Sensor Use, working, problem and solution.
• Compressor Testing
• Over Current Section working, problem and solution.
• IPM Checking
• PCB Testing with Practical


❖ Fridge Inverter Circuit
• Regulation working, problem and solution.
• MCU & Crystal Section
• DC Link working, problem and solution.

12. • IPM working, problem and solution.
• Comparator IC / I-section / Over Current Circuit
• Led – Indication working, problem and solution.

❖ Washing Machine – WM
Non-Inverter
• Basic of Washing Machine Working.
• Wiring of washing machine
• Use, working, problem and solution of Inlet pump ,Gear motor ,Drain motor
,Main motor ,Door switch ,Water level / Pressor Switch.
• Power Supply – SMPS ,Linear ,Buck Converter.
• Relay Section
• MCU Working & Fault Dignosis.
• Crystal Section - working & fault
• Keypad Section - working & fault
• Door Switch - working & fault
• Level Switch - working & fault
• All motor / pump - working & fault
• TRIAC / SSR - working & fault
• Bipolar IC Circuit
• Hex – Inverter IC Circuit
• Problem Diagnosis & Solve

Inverter
• Basic of Inverter Washing Machine
• PSU – Power Supply Unit
• Relay
• Use, working, problem and solution.– Pump ,Switch ,Motor.
• DC Link
• Logic Circuit & Inverter Circuit
• Logic Circuit all Section
• Keypad Section working, problem and solution.
• Display Section working, problem and solution.
• Selector Switch working, problem and solution.
• Led Indication working, problem and solution.
• Power Regulation working, problem and solution.
• IPM Testing
• TRIAC /SSR / Relay Testing.
• Zero Crossing.

13. ❖ Microwave Oven / MW
• About of Microwave Oven
• Basic Working of Microwave Oven
• About all ,parts (Magnetron ,Transformer ,
Switch ,PTC ,Capacitor ) Testing & Working.
• PCB Circuit working, problem and solution.
• Power Supply working, problem and solution.
• SMPS working, problem and solution.
• Linear working, problem and solution.
• Zero Crossing working, problem and solution.
• Relay Section working, problem and solution.
• Display Section working, problem and solution.
• Door Switch working, problem and solution.
• Touch Keypad Diagram
• Making & Repairing Touch pad / Keypad.
• Motor Checking

WASHING MACHINE

❖ Top Load, Front Load, Fully Automatic, Inverter And Non- Inverter
• Power Supply
➢ Linear Power Supply
➢ SMPS Power Supply
➢ Buck Converter Power Supply
• Regulation Section
• Relay Section
• Bipolor Linear IC
• Buzzer Section
• MCU ( Micro Controller Unit )
• Crystal
• Eeprom
• Low-Indication
• Key-Pad Section

14. • Selector Switch
• Heater Switch
• Thermistor Section
• Door Switch
• Input Valve
• Main Motor
• Pressure Sensor
• DC Link
• IPM ( Intelligent Power Module )
• OCP ( Over Current Protection )
• Communication

MICROWAVE

❖ ALL SECTION
• Power Supply
➢ Linear Power Supply
➢ SMPS Power Supply
➢ Buck Converter Power Supply
• Regulation Section
• Relay Section
• MCU ( Micro Controller Unit )
• Crystal Section
• Low Voltage Detector IC
• Eeprom
• Buzzer Section
• Door Switch
• Zero Crossing
• Display Section
• Key Pad Section

15. CALL FOR FREE DEMO: 8929250332




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