JPS57148475A - Equipment for inspecting tolerance of purity adjustment of color tv - Google Patents
Equipment for inspecting tolerance of purity adjustment of color tvInfo
- Publication number
- JPS57148475A JPS57148475A JP3400281A JP3400281A JPS57148475A JP S57148475 A JPS57148475 A JP S57148475A JP 3400281 A JP3400281 A JP 3400281A JP 3400281 A JP3400281 A JP 3400281A JP S57148475 A JPS57148475 A JP S57148475A
- Authority
- JP
- Japan
- Prior art keywords
- color
- tolerance
- purity
- cpu18
- inspected
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
Abstract
PURPOSE: To inspect tolerances of purity adjustment in a short time, by measuring and storing luminances of many points on the picture of color TV CRT to be inspected within one field period of scanning.
CONSTITUTION: Vertical magnetic fields 3-a and 3-b are installed as a equalized magnetic field by mangetic field generating coils 3 and 3' which are installed above and below a color TV CRT CPT1 which has been adjusted for the purity at the same distance, respectively. Then, a raster signal generating mode of a TV signal generator 7 is selected by a command from a CPU18 issued based on the program stored in an ROM17, and control signals of red, green, and blue to be displayed are given to a chassis 2. Thereafter, a motor 27 is driven from the CPU18, and the resistance value of a variable resistor 23 is changed, and thus, the landing condition of a fluorescent screen of an electron beam is changed. In this way, the maximum value of the luminance of the CPT to be inspected is found and the tolerance of the reduced value of the luminance from the maximum value is also found.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3400281A JPS57148475A (en) | 1981-03-11 | 1981-03-11 | Equipment for inspecting tolerance of purity adjustment of color tv |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3400281A JPS57148475A (en) | 1981-03-11 | 1981-03-11 | Equipment for inspecting tolerance of purity adjustment of color tv |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57148475A true JPS57148475A (en) | 1982-09-13 |
Family
ID=12402231
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3400281A Pending JPS57148475A (en) | 1981-03-11 | 1981-03-11 | Equipment for inspecting tolerance of purity adjustment of color tv |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57148475A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU673887B2 (en) * | 1993-03-04 | 1996-11-28 | Kabushiki Kaisha Ace Denken | Slot machine |
-
1981
- 1981-03-11 JP JP3400281A patent/JPS57148475A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU673887B2 (en) * | 1993-03-04 | 1996-11-28 | Kabushiki Kaisha Ace Denken | Slot machine |
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