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Now downloading free:Velleman Instruments PCS500  [report bad file]  

Download Velleman Instruments PCS500 docs - Oscilloscopes, digital oscilloscopes, Tektronix oscilloscopes, cathode ray ocilloscopes, pc oscilloscopes service manuals and repair information

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File name:PCS500_troubleshoot.pdf
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Descr:PCS500 Troubleshooting
Group:Electronics > Measuring equipment > Oscilloscopes >
Uploaded:2010-10-06 02:11:04
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PCS500_troubleshoot.pdfPCS500 Troubleshooting If there are any fails or problems when you run the PCS500_TST.EXE at the first time on a new oscilloscope unit please make the following checks: Test 1 Problem No power Check The voltage at pin 6 of optocoupler IC30 should go down at the startup for a moment. See images 1 and 2. Check IC4, IC21, IC30 and the associated components. 2, 3 No trace on the screen Check all the supply voltages of the digital and analog section. Check the voltages of the input amplifier section. See image A. Check the waveforms at the optocouplers. See images 2 ... 8. When measuring the waveforms use "Single" mode and keep triggering ON. 4 5 6 7 8 9 10 11 12 13 14 15 16 Calibration error Can't be adjusted Can't be adjusted Can't be adjusted Can't be adjusted Can't be adjusted Can't be adjusted Calibration error Can't be adjusted Can't be adjusted Test failed Test failed Power can't be switched off Open CALIBRATION.LOG file and check the failed test. Below there are more detail

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