1. WORKING PRINCIP OF RECEIVER TELEVISION REPAIRING RECEIVER TELEVISION SYSTEM By Sarbini, S.Pd SMK Muh 3 Yogyakarta

2. Teknologi dan Rekayasa THE MEANING TELEVISION  Tele : far  Vision : see/view  Television : see from far distance  Television : Electronic instrument that can be broadcast / show an object from a far distance

3. Teknologi dan Rekayasa SUB SYSTEM TELEVISION  TRANSMITTER : Transmit video signal with the modulation signal (carrier)  RECEIVER : Receive video signals and conver to video and sound  CONDUCTION MEDIA (AIR,CABEL) : Conduction elektromagnetik waves from transmitter to the television receiver

4. Teknologi dan Rekayasa THE WORKING PRINCIPLES

5. Teknologi dan Rekayasa

6. RECEIVER TELEVISION BLACK WHITE BLOCKS

7. Teknologi dan Rekayasa RECEIVER TELEVISION COLOUR BLOCKS

8. Teknologi dan Rekayasa DETAIL RECEIVER TELEVISION COLOUR BLOCKS

9. Teknologi dan Rekayasa 1. TUNER / PENALA  Penala : receive input sinyal (TV wave) from antena and convert to frecuency IF sinyal.

10. Teknologi dan Rekayasa PART OF TUNER RF Amplifier : amplifi sinyal that receive antena Lokal Osilator :generating sinyal high frekuency that value higher comparated RF frekuency RF from antena (FO= frekuency RF+IF). Mixer :Mixing sinyal from RF amplifier and osilator local until produced IF frekuency (IF video PAL=38,9MHz, IF Sound = 33,4 MHz) dan NTSC= 42,75 MHz)

11. Teknologi dan Rekayasa 2. AUDIO PROCESSING FUNCTION Separated information sinyal (audio) from signal audio carrier and amplifiying until can listening by audience.

12. Teknologi dan Rekayasa AUDIO PROCESSING PARTS  Sound IF (IF Suara) amplifier : amplifying audio signal that demodulated wave FM (5,5 MHz).  Detector FM (Frequency Modulation) : separate audio frekuency from carrier that modulated FM.

13. Teknologi dan Rekayasa  Power Amplifier (Sound Output) : Amplifying audio signal until be able vibrate loudspeaker.  Loudspeaker : convert audio signal audio to sound.

14. Teknologi dan Rekayasa 3. PROCESSING VIDEO SIGNAL  Amplifier IF (Intermediate Frequency)  Video Detektor  Video Amplifier  AGC (Automatic Gain Control)

15. Teknologi dan Rekayasa VIDEO AMPLIFIER BLOCK

16. Teknologi dan Rekayasa WORKING PRINCIPPLES OF AGC

17. Teknologi dan Rekayasa AGC TYPE  AGC AVERAGE  PICK LEVEL AGC  KEYED AGC

18. Teknologi dan Rekayasa 4. SYNCRONIZATION AND DEFLEKTION  Synkronization  Horisontal Deflection  Horisontal Osilator : generate pulse horisontal frekuency (system CCIR 15.625 Hz,FCC 16.750Hz).  Horisontal Driver : Amplifying Signal horisontal frekuensi from osilator so be able suplies enought electric current for push horisontal output transistor (HOT).  Horisontal Output (HOT) : provide power electric sawtooth (arus gigi gergaj) for forward to horisontal deflektion yoke.

19. Teknologi dan Rekayasa  High Voltage Generate Produce high voltage for activate CRT until be able to produce electrons for video display.

20. Teknologi dan Rekayasa Horizontal Deflection Yoke  Produce enough electric current for scaning electric beam horizontal direction.  Generate high voltage pass sekunder fly back transformator, for forward to electrode anoda CRT and elektroda fokus.

21. Teknologi dan Rekayasa  Defleksi vertikal Part 1.vertikal Osilator : generate vertikal frekuency (50 HZ) 2.Driver Osilator : Amplifying signal from osilator so can provide electric current enough for push vertikal output transistor. 3.Output Osilator : amplifying signal from Vertikal driver for forwarded to deflection vertikal yoke.

22. Teknologi dan Rekayasa 5. Power Supply  Power Supply : convert AC voltage to DC voltage for distributed to all part that need.  2 system power supply: 1.Konvensional System 2. Switching System

23. Teknologi dan Rekayasa TELEVISION MACHINE