Television tube
Cathode ray tube (in English: cathode ray tube or CRT), invented by Karl Ferdinand Braun, is the appearance of a tube that is widely used in computer screens, video monitors, televisions and oscilloscope. CRT developed from Philo Farnsworth is working on all the television until the late 20th century, and is the basis for the development of plasma screens, LCD TV technology and other forms of its cathode. 14-inch tube television.
CRT
CRT is a cold-cathode diode, a modification of the Crookes tube (X-rays) with a phosphor coated screen, sometimes called Braun tube. The first version uses a hot cathode was developed by JB Johnson (who is the origin of the term Johnson noise) and HW Weinhart from Western Electric and became a commercial product in 1922. Cathode ray is a high-speed stream of electrons emitted from the heated cathode of a vacuum tube. In cathode ray tubes, electron carefully directed to be emitted, and the light is on "deflection" by the magnetic field for the "scan" the surface at the end of the pandanus (anode), a line with berfosfor material (usually based on transition metals or rare earth . When the electrons in the material is touching the screen, then the electrons will lead to light. Theoretically, CRT, and LCD are different in which CRTs use an electron is fired at the screen so that the color becomes an image. LCD has light behind the constant in different brightness intensity because of the closure / blockage of the molecules to light passing through the panel.
Circuit tuner
This series consists of the amplifier high frequency (HF amplifier), mixer (mixer) and local oscillator. Tuning circuit functions to receive incoming television signals and turning them into IF frequency signal.
The amplifier circuit IF (Intermediate Frequency)
This series serves as a signal amplifier to 1000 times. The resulting output signal tuning (tuner) signal is weak and highly dependent on the distance transmitter, receiver position and landscape. Red circle indicates that some IF circuits are within the tuner.
Circuit AGC (Automatic Gain Control)
AGC circuit functions to stabilize the input television signal itself changing, so the output becomes constant. Red circle indicates AGC component which resides in some IC and some tuner.
Recipient stabilizer circuit television waves.
Stabilizer circuit TV receiver such waves is AGC and aft. Automatic Fine Tuning controls the picture carrier frequency of IF amplifier automatically.
Synchronization deflection circuit
This series consists of four blocks namely: synchronization circuits, vertical deflection circuits, horizontal deflection circuit and high voltage generating circuit.
Voice circuit
The voice we hear is the work of this series, the sound IF carrier signal is detected by the frequency modulator (FM). Previously, this signal is separated from the picture carrier signal.
Power Supply circuit (Power Supply)
Function to convert AC current into DC and then distributed to the entire series.
In the picture, the power supply circuit is limited by the white line and red box. Areas within the white lines is a series of inputs that are high-voltage area (Live Area). Meanwhile, the region in the red box is the output power supply which then distributes the DC voltage to the entire TV series.
Amplifier chrome
This amplifier strengthens 4.43 MHz frequency for a modulated signal in chrome V signal (RY signal) and the signal U (BY signal). Amplifier bandwidth 2 MHz.
Synchronizing Color
In a series synchronization color, the color synchronization burst signal issued from the composite color video signal.
Automatic Color Control (ACC)
If the explosion signal amplitude rises, the ACC issued a wheel that minimize stress in the strengthening of colors.
Color Killer
This circuit is useful to suppress the color amplifier, if no signal was chrome entered. This happened at the time of acceptance of black and white signal.