The Defpom’s Blog

I have been working on the fluke some more, I have been going through its basic calibration procedure (doing a video it of course).

I can see that TP5 on the oscillator control board is noisy, so this could be a clue to where the noise is originating.

As it is a closed loop system, I will need to inject my own signal at some point of the circuit to see if the noise is before or after that point.

#346 Fluke 5200A AC Calibrator Repair Part 15 - Power Amplifier A7 Continued

Part 15

#344 Fluke 5200A AC Calibrator Repair Part 14 - Power Supply A5 Yet Again

Part 14

#341 Fluke 5200A AC Calibrator Repair Part 13 - Power Amplifier A7

Part 13

#339 Fluke 5200A AC Calibrator Repair Part 12 - AC to DC Converter A8

Part 12

#332 Fluke 5200A AC Calibrator Repair Part 11 - Oscillator Control A9

Part 11

#324 EEVBlog Guest - The Defpom

Supplemental information on testing the oscillator board.

Supplemental info

#321 Fluke 5200A AC Calibrator Repair Part 10 - Reference Assembly A12 MAGIC SMOKE

Part 10

#317 Fluke 5200A AC Calibrator Repair Part 9 - Regulator PCB SubAssembly A5A2

Part 9

#313 Fluke 5200A AC Calibrator Repair Part 8 - Oscillator A10

Part 8

#305 Fluke 5200A AC Calibrator Repair Part 7 - General Component Tests

Part 7

#300 Fluke 5200A AC Calibrator Repair Part 6 - Regulator PCB SubAssembly A5A2

Part 6

#297 Fluke 5200A AC Calibrator Repair Part 5 - Power Amplifier A7

Part 5

#295 Fluke 5200A AC Calibrator Repair Part 4 - Regulator PCB A5A2 and Reference Assembly A12

Part 4

#294 Fluke 5200A AC Calibrator Repair Part 3 - Regulator PCB SubAssembly A5A2

Part 3

#291 Fluke 5200A Programmable AC Calibrator Repair Part 2

Part 2

#289 Fluke 5200A Programmable AC Calibrator Repair Part 1

Part 1