Rectification of No Colour Fault and Operation of a TV Receiver:
To rectify the no colour fault and operate the given colour TV Receiver.
Components Needed:
S. No.
Name of Component/Apparatus
Quantity
1.
2.
Colour TV Receiver
Multimeter
1
Identification of the Fault given in a TV Receiver:
1. Very the TV receiver is switched ON firstly.
2. The image on the screen with no colour.
3. Adjust the colour Control. There is on the screen No Colour picture.
4. Switch OFF the TV Receiver instantaneously and confirm No Colour Picture fault on the Receiver, along with colour control adjustment.
Test the stages of the TV receiver:
1. The TV receiver is switched ON firstly
2. There on the picture is no colour
3. First test the antenna and its parts
4. Test the RF socket and related parts
5. Test the fine tuning control in the tuner
6. Test the chromo band pass amplifier
7. Test the working condition of colour killer circuit
Figure: BLOCK DIAGRAM OF COLOUR PICTURE STAGE
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