1. Television 1 Jess Role @ UEAB Picture Tube

2. Television 1 Jess Role @ UEAB Other names CRT cathode ray tube Screen Picture tube Picture bulb

3. Television 1 Jess Role @ UEAB

4. Materials used Glass Phosphor Stainless plate Steel Iron Tungsten Aluminum

5. Television 1 Jess Role @ UEAB

6. Television Phosphor number designation P 22 designated for color P 4 for black and white P 7 greenish-yellow light output P 1 CRT for oscilloscope P 11 for photographic application that emit blue light

7. Television 1 Jess Role @ UEAB Worldwide type designation system (WTDS) Type A – for television Type M – monitor AAA-DZZ designation for US tubes EAA-HZZ – European tubes JAA-MZZ – Japanese Tubes X – represent a color picture tube example of WTDS A6AAAOOX

8. Television 1 Jess Role @ UEAB Picture tube length and deflection Angle Length 9 – 25 inches 50- 114 degrees deflection angle 105 degrees horizontal deflection angle

9. Television 1 Jess Role @ UEAB

10. Picture tube bases

11. Television 1 Jess Role @ UEAB Picture tube parts

12. Television 1 Jess Role @ UEAB

13. Electrostatic focus

14. Television 1 Jess Role @ UEAB Picture tube PS

15. Television 1 Jess Role @ UEAB Flat picture tube

16. Television 1 Jess Role @ UEAB Porta TV

17. Television 1 Jess Role @ UEAB

19. Gun Arrangement

20. Television 1 Jess Role @ UEAB

38. Problem and Symptoms Low picture clarity No picture filament light ok high voltage ok Picture tube face turn to white Black spot on the middle of the picture tube Low phosphor Blurred picture

39. Television 1 Jess Role @ UEAB Tube testing Isolation technique Picture tube tester Variable Filament voltage supply Observation and analysis Second opinion

40. Television 1 Jess Role @ UEAB Picture Tube Replacement Cost effectiveness Availability Substitution (use tube manual) Picture tube size Brand Model number or serial numbers Structure and mounting Make or production code

41. Television 1 Jess Role @ UEAB