JPS5578259A - Failure diagnosis method for unit of which operation is controlled with microcomputer - Google Patents
Failure diagnosis method for unit of which operation is controlled with microcomputerInfo
- Publication number
- JPS5578259A JPS5578259A JP15295678A JP15295678A JPS5578259A JP S5578259 A JPS5578259 A JP S5578259A JP 15295678 A JP15295678 A JP 15295678A JP 15295678 A JP15295678 A JP 15295678A JP S5578259 A JPS5578259 A JP S5578259A
- Authority
- JP
- Japan
- Prior art keywords
- rom
- failure diagnosis
- unit
- pins
- microcomputer
- 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
- Tests Of Electronic Circuits (AREA)
Abstract
PURPOSE: To enable to diagnose the various operations of unit and operation of MC, by operating failure diagnosis ROM in place of ROM in the microcomputer MC for operation control of unit such as copy machines.
CONSTITUTION: As the failure diagnosis ROM' in which failure diagnosis program is stored, that given by the first potential to the pin corresponding to the chip selection pin predetermined for ROM provided in the microcomputer MC is prepared. If the pins other than the chip selection pins predetermined in ROM are connected to the pins other than the chip selection pins predetermined in ROM', the second potential required for disabling ROM to the pins of ROM of MC is automatically given to make operative the ROM' for failure diagnosis and the failures of unit can be diagnosed.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15295678A JPS5578259A (en) | 1978-12-10 | 1978-12-10 | Failure diagnosis method for unit of which operation is controlled with microcomputer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15295678A JPS5578259A (en) | 1978-12-10 | 1978-12-10 | Failure diagnosis method for unit of which operation is controlled with microcomputer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5578259A true JPS5578259A (en) | 1980-06-12 |
Family
ID=15551829
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15295678A Pending JPS5578259A (en) | 1978-12-10 | 1978-12-10 | Failure diagnosis method for unit of which operation is controlled with microcomputer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5578259A (en) |
-
1978
- 1978-12-10 JP JP15295678A patent/JPS5578259A/en active Pending
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MANN | Optimal outlier tests for a Weibull model- to identify process changes or to predict failure times[Technical Paper, 1 Jul. 1980- 1 Jun. 1981] |