| Products > Test Equipment |
| Keithley 2400 SourceMeter review and teardown |
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| kawal:
Great job TiN. I should send my unit to you. Do you offer calibration services ? |
| Minikisscool:
Hi all, I read all. I have a 2410 who is not working. When power off, display shows OVP. After diagnostics, the MAX EPM7160 on analog board is defect. He is heating hot. (picture of a thermal camera) The 5Volt and power supply is good. I check on capacitor C616 L603 is good. Heating a little due to current consummation of EPM160 Anyone tried to read the binary of this CPLD ? or has binary file 2400-801A01 ? I looked datasheet of components. There is 4 pins TDO, TCK, TDI and TDMS to program component. Anyone to help me. Thanks |
| Kleinstein:
CPLDs / PFPGAs do sometimes run quite hot. Also a shortet output or open inputs can drive the power consumption up. So a warm chip does not nedessary mean the chip is bad. The JTAG interface may be a way to check if there is still a response, though even a broken chip may still respond to JTAG. |
| inaxeon:
--- Quote from: Kleinstein on March 30, 2022, 10:40:58 am ---CPLDs / PFPGAs do sometimes run quite hot. Also a shortet output or open inputs can drive the power consumption up. So a warm chip does not nedessary mean the chip is bad. The JTAG interface may be a way to check if there is still a response, though even a broken chip may still respond to JTAG. --- End quote --- I would second that. I built something with one of those on a long time ago. It runs stupid hot. In the range suggested by that camera. |
| Le_Bassiste:
temp of CPLD is defo too high. also, tantalum capacitor at lower left corner of CPLD in your picture seems to be having a hard time. you may want to check frequency of clock lines that go into CPLD. CPLD is mostly controlling analog switches, so watch out for those as well. |
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