1. Monochrome Television Block Diagram

2. Diagram Showing Input and Outputs
Speaker
Television
Receiver
All Section
Picture Tube
Power Supply
AC Input

3. Black and White Television
Sound IF
Amplifier
Sound Detector
Audio Amplifier
Speaker
Tuner
IF Amplifier
Video Detector
Video Amplifiers
AGC
Picture
Tube
All Stages
Vertical Sweep
AFC
Sync Separator
Low Voltage Power Supply
High Voltage Power supply
Horizontal Oscillator
Horizontal Output
AC line

4. Function of each Block Section
Low Voltage Power Supply – this power supply DC voltage in all section of the television. It is also a place used to convert AC voltage to DC voltage.
Sound IF Amp – received and synchronize Sound signal
Sound detector-

5. Continuation…
Sound detector – filter the signal received from the sound IF amp.
Audio Amplifiers- Amplify signal from the sound detector
Tuner – Select the station or channel that you desire.
Sound IF Amplifiers – received the signal emitted from the sound trap
Video Detector – filter the signal received from the video IF amp
Video Amplifier - Amplify the video received from the video detector section.

6. Continuation… AGC AFC Sync separator Vertical Sweep
Horizontal Oscillator
Horizontal Output
High Voltage Power Supply
Picture tube
Deflection Yoke

7. Color Television Speaker Picture Tube All Stages AC line Sound IF
Amplifier
Sound Detector
Audio Amplifier
Speaker
Tuner
IF Amplifier
Video Detector
Video Amplifiers
AGC
Picture
Tube
All Stages
Vertical Sweep
AFC
Sync Separator
Low Voltage Power Supply
High Voltage Power supply
Horizontal Oscillator
Horizontal Output
AC line

8. Details of Vertical and Horizontal Section
High Voltage rectifier
Horizontal Oscillator
Horizontal Driver
Horizontal Output
Flyback
Filament
coil
Yoke
To Filament
Coil 2
Coil 1
Picture
Tube
All Stages
Vertical Oscillator
Vertical Driver
Vertical Output
Low Voltage Power Supply
AC line

9. Horizontal Scanning Horizontal Scanning - 15.734 Hz
Vertical Scanning – 59 Hz pulse
Interlace scanning – Function of horizontal and vertical
deflection pulls the beam from left to right and the
other force pull from top to bottom. Composed of
525 lines to complete one picture called frame
1 lines = 262 lines
2 lines = 525 equivalent to 1 frame

10. Composite Video Signal is composed of the following
Video Signal –gives the right image information to the picture tube. ( 30 Hz – 4.2 MHz
Horizontal Blanking pulse – tell the receiver to blank the electron beam
Horizontal synchronizing Pulse
Vertical Blanking Pulse
Vertical synchronizing Pulse
Equalizing pulse