PARTS AND FUNCTION IN THE SYSTEM

RECEIVER BLACK WHITE TV TELEVISION

REPAIRING RECEIVER TELEVISION SYSTEMBy Sarbini, S.Pd SMK Muh 3 Yogyakarta

Teknologi dan Rekayasa

RECEIVER TELEVISION BLACK WHITE BLOCKS

Teknologi dan Rekayasa

1. TUNER

Tuner : receive input sinyal (TV wave) from antena and convert to frecuency IF sinyal.

Teknologi dan Rekayasa

2. IF AMPLIFIER

Functions brave as a signal coming from the tuner up to 1000 times. Ouput signal generated penala (Tuner) is a weak signal and is highly dependent on the distance relay, the position of the recipient and the expanse of nature.

Teknologi dan Rekayasa

3. Video Detektor Series

Function detection composite video signal exit of the IF video amplifier. It also serves to muffle the sound signal will result in poor quality images

Teknologi dan Rekayasa

4. Video Amplifier Series

Functions This series is brace as a signal from the detector luminan coming from the detector so that it can run a picture tube or CRT (Catode Ray Tube)

Penguat IF (Intermediate Frequency)

Detektor Video

Video Amplifier

Teknologi dan Rekayasa

5. Stabilizator Receiver TV Wave Series.

Rangkaian penstabil penerima gelombang TV diantaranya adalah AGC dan AFT. Automatic Fine Tuning berfungsi mengatur frekuensi pembawa gambar dari penguat IF secara otomatis

Teknologi dan Rekayasa

6. Sinkronization Deflection Series

Rangkaian ini terdiri dari empat blok yaitu:

Sinkronization Series, Vertikal deflection series, Horizontal deflection

series, High Voltage Generate

Teknologi dan Rekayasa

7. Sound Series

Separated information sinyal (audio) from signal audio carrier and amplifiying until can listening by audience.

Teknologi dan Rekayasa

IF sound carrier signal will be detected by the frequency modulator (FM).

Power Amplifier (Sound Output) : Amplifying audio signal until be able vibrate loudspeaker.

Loudspeaker : convert audio signal audio to sound.

Teknologi dan Rekayasa

8. Power Supply series

Function to convert AC to DC current which is distributed to the all series need.

Area in the white line is the series of input which is a regional high-voltage (Live Area). Meanwhile, the area in a red box is the power output portion of the DC voltage distribution to the all TV series

Teknologi dan Rekayasa

Power Supply Series

Teknologi dan Rekayasa

9. High Voltage Generator

Produce high voltage for activate CRT until be able to produce electrons for video display.

Teknologi dan Rekayasa

10. Horizontal Deflection Yoke

Generate enough current deflection for used scanning electric beam horizontal direction.

Generate high voltage through the coil secunder fly back to continue to the anoda electrode and CRT focus electrode .