JPS6488264A - In-circuit tester - Google Patents
In-circuit testerInfo
- Publication number
- JPS6488264A JPS6488264A JP62246007A JP24600787A JPS6488264A JP S6488264 A JPS6488264 A JP S6488264A JP 62246007 A JP62246007 A JP 62246007A JP 24600787 A JP24600787 A JP 24600787A JP S6488264 A JPS6488264 A JP S6488264A
- Authority
- JP
- Japan
- Prior art keywords
- integrated circuit
- state
- voltage
- moa
- switch
- 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
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
PURPOSE:To make it possible to measure the mounted state of an integrated circuit without fail, by connecting first and second contacting means to a first terminal to which a power line of the integrated circuit is connected, or to a second terminal to which the power line is not connected. CONSTITUTION:When relay switches RL1 and RL2 are put in the ON state by the control of a control element CT, a power VS is supplied to an integrated circuit IC through a bus line BS1, the switch RL1, a probe pin CP1, a test land TL1 and a lead pin LP1. Since the switch RL2 is in the ON state, an output voltage V0 of an operational amplifier MOA for measurement turns to be as expressed by an equation V0=-Rref.VS/R. Since a conversion resistance Rref and the voltage VS are already known, a resistance value between test lands TL1 and TL2 can be determined by measuring the voltage V0 of the amplifier MOA by the control element CT, and it can be discriminated therefrom whether the mounted state of the integrated circuit IC1 is normal or not.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62246007A JPS6488264A (en) | 1987-09-30 | 1987-09-30 | In-circuit tester |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62246007A JPS6488264A (en) | 1987-09-30 | 1987-09-30 | In-circuit tester |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6488264A true JPS6488264A (en) | 1989-04-03 |
Family
ID=17142073
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62246007A Pending JPS6488264A (en) | 1987-09-30 | 1987-09-30 | In-circuit tester |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6488264A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0689990A (en) * | 1992-04-29 | 1994-03-29 | Motorola Inc | Gate array |
-
1987
- 1987-09-30 JP JP62246007A patent/JPS6488264A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0689990A (en) * | 1992-04-29 | 1994-03-29 | Motorola Inc | Gate array |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ATE30998T1 (en) | ELECTRICAL MONITORING SYSTEMS. | |
GB1497667A (en) | Apparatus for detecting and indicating the presence in a fluid environment of a potentially dangerous constituent | |
JPS5743296A (en) | Measuring device having plural measuring points connected via cable | |
JPS562569A (en) | Insulating resistance measuring instrument | |
JPS6488264A (en) | In-circuit tester | |
EP0330148A3 (en) | Circuit breaker | |
JPS6453045A (en) | Device for inspecting at least two electric load of automobile | |
JPS6454379A (en) | Probe substrate for measuring semiconductor integrated circuit | |
EP0165796A2 (en) | An instrument for measuring resistance | |
SU1698795A1 (en) | High-voltage checker | |
JPS57201040A (en) | Semiconductor device | |
SU870926A1 (en) | Device for contact diagnostics | |
JPS57124264A (en) | Burn-in testing equipment | |
JPS6421375A (en) | In-circuit testing apparatus | |
JPS6488263A (en) | In-circuit tester and manufacture of electronic apparatus using said tester | |
SU1191847A1 (en) | Apparatus for checking logic circuits | |
SU932705A1 (en) | Method of determining level of metal in crusible of magnetodynamic pump | |
SU1029101A1 (en) | Device for checking ac mains insulation | |
SU1684720A1 (en) | Active resistance measuring device | |
SU568027A1 (en) | Circuit for continuously monitoring insulation resistance of ac mains | |
SU393697A1 (en) | DEVICE FOR THE MEASUREMENT OF TRANSITION RESISTANCE | |
SU824082A1 (en) | Device for electric wiring checking | |
JPS573019A (en) | Burn-out detector for resistance thermometer | |
SU563649A1 (en) | Device for controlling resistor resistance deviation from determined | |
JPH048380Y2 (en) |