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Television 1 Jess UEAB Picture Tube. Television 1 Jess UEAB Other names CRT cathode ray tube Screen Picture tube Picture bulb.

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Presentation on theme: "Television 1 Jess UEAB Picture Tube. Television 1 Jess UEAB Other names CRT cathode ray tube Screen Picture tube Picture bulb."— Presentation transcript:

1 Television 1 Jess UEAB Picture Tube

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

3 Television 1 Jess UEAB

4 Materials used Glass Phosphor Stainless plate Steel Iron Tungsten Aluminum

5 Television 1 Jess 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 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 UEAB Picture tube length and deflection Angle Length 9 – 25 inches degrees deflection angle 105 degrees horizontal deflection angle

9 Television 1 Jess UEAB

10 Picture tube bases

11 Television 1 Jess UEAB Picture tube parts

12 Television 1 Jess UEAB

13 Electrostatic focus

14 Television 1 Jess UEAB Picture tube PS

15 Television 1 Jess UEAB Flat picture tube

16 Television 1 Jess UEAB Porta TV

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19 Gun Arrangement

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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 UEAB Tube testing Isolation technique Picture tube tester Variable Filament voltage supply Observation and analysis Second opinion

40 Television 1 Jess 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 UEAB

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