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INDUSTRIAL TRAINING ATBHARAT ELECTRONICS LTD. : 

INDUSTRIAL TRAINING ATBHARAT ELECTRONICS LTD.

ABOUT BEL : 

ABOUT BEL The wireless set STARS-V was used in OPERATION VIJAY in KARGIL by the Indian Armed forces. It manufactures advanced electronic products for the defense. It has total employee strength of about 12000 people spread across 9 manufacturing units, and few regional offices.

PRODUCTS OF BEL : 

PRODUCTS OF BEL VHF/UHF TRANSERECIVER (LVP322) CNR (COMBAT NET RADIO) STARS-V (Secure Tactical Army Radio System-VHF) SECTEL ( SECURE TELEPHONE)

VHF/UHF TRANSERECIVER (LVP 322) : 

VHF/UHF TRANSERECIVER (LVP 322) 100-156 MHZ & 225-400 MHZ LED display of frequency BITE facility HIGH reliability LOW lifetime cost Remote control Automatic Radio broadcast. Ground to ground/Air Communication.

CNR (COMBAT NET RADIO) : 

CNR (COMBAT NET RADIO) Single channel FM operation in the 30-88MHZ VHF band 10 preset channel Selective calling Remote control Programmable Frequency Hopping Voice as well as data communication

STARS-V (Secure Tactical Army Radio System-VHF) : 

STARS-V (Secure Tactical Army Radio System-VHF) 2 Versions: 5 W / 25 W. Man pack and Vehicular applications. Secure communication and 32code options. Whisper mode for communication. Remote broadcast operation with RCU. Selective call facility.

SECTEL(Secure Telephone) : 

SECTEL(Secure Telephone) Compact , high-grade speech secrecy Subscriber End Secrecy Device (SESD). multifunction keypad for different functions Connectivity over standard two wire telephone line 230 V AC mains supply and AC/DC converted required

THE SMT LINE : 

THE SMT LINE

THE SMT LINE : 

THE SMT LINE Screen preparation. PCB loading. Glue solders application. Component placement. Reflow Oven. Automatic Optical Application. Good & Bad PCB separator

FEATURES OF SMT LINE : 

FEATURES OF SMT LINE Mount Flip Chip BGA (ball grid array), MELF (metal Electronic filament). Mount component on both sides of the PCBs. Automatic built-in 2D inspection facility of solder paste print area.

ADVANTAGES OF SMT : 

ADVANTAGES OF SMT Smaller, lighter component. Simpler automated assembly. Components can be fitted to both sides of the circuit board. SMT parts generally cost less than through-hole parts.

DISADVANTAGES OF SMT : 

DISADVANTAGES OF SMT More sophisticated than through-hole boards. Raising the initial cost and time of setting up for production. Difficulty in manual handling. Manual prototype assembly extremely difficult.

PCB CLEANING MACHINE : 

PCB CLEANING MACHINE

DESCRIPTION OF WORKING : 

DESCRIPTION OF WORKING Manually , isopropyl alcohol is used. Tank 1 consist of HC EL20 (hydrocarbon) & HFE 71 (hydro-flour- ether). HFE 71 is an expensive solvent i.e. Rs. 5000/L. With 60% of HCEL 20 and 40% of HFE 71. Tank 2 consist of HFE 71. The moveable Trans can lift up to 30 Kg. Temperature of operation is 65 degree Celsius .

TESTING : 

TESTING Important stage in production. PCB level testing. Main testing. Check the stability of the characteristics of the PCB as well as its components. This process is done for approximately 80 hours. This is called Ageing process.

VARIOUS KINDS OF TESTS : 

VARIOUS KINDS OF TESTS BUMP TESTING VIBRATION TESTING ENVIORMENTAL TESTING ALTITUDE TESTING IMMERSION TESTING LEAKAGE TESTING

INSPECTION : 

INSPECTION Done after environmental testing. Check the values of various components. Check visible characteristics of the various active devices. Various interconnections. Whether the BEL standards are being maintained or not.

Slide 18: 

THANKS

Slide 19: 

QUERIES


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