Contents
Intro
This is AC/DC thermal transfer box just like Fluke 792A, but automatic and with wider frequency range.
Image 1: Ballantine 1605B front panel
Disclaimer
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All information posted here is hosted just for education purposes and provided AS IS. In no event shall the author, xDevs.com site, or any other 3rd party, including Ballantine be liable for any special, direct, indirect, or consequential damages or any damages whatsoever resulting from loss of use, data or profits, whether in an action of contract, negligence or other tortuous action, arising out of or in connection with the use or performance of information published here.
If you willing to contribute or add your experience regarding instrument repairs or provide extra information, you can do so following these simple instructions
Manuals and documentation
Ballantine 1605B Operators Manual
Image 1: Ballantine 1605B
Teardown and preventive repairs
Before we start, unit was checked to be operating correctly.
Image 1: Ballantine 1605B
Image 1: Ballantine 1605B
Digital controller
Image 1: Ballantine 1605B
Image 1: Ballantine 1605B
A2 board
Image 1: Ballantine 1605B
A3 board
Image 1: Ballantine 1605B
A4 board
Image 1: Ballantine 1605B
Image 1: Ballantine 1605B
A5 board
Image 1: Ballantine 1605B
A6 board
Image 1: Ballantine 1605B
A7 board
Image 1: Ballantine 1605B
Image 1: Ballantine 1605B
A8 board
Image 1: Ballantine 1605B
A9 board
Image 1: Ballantine 1605B
Image 1: Ballantine 1605B
Thermal AC/DC transfer unit and low-voltage front end
Image 1: Ballantine 1605B
Image 1: Ballantine 1605B
Image 1: Ballantine 1605B
Image 1: Ballantine 1605B
Image 1: Ballantine 1605B
Image 1: Ballantine 1605B
Image 1: Ballantine 1605B
A16 High-voltage attenuator assembly
Image 1: Ballantine 1605B
Image 1: Ballantine 1605B
Image 1: Ballantine 1605B
Image 1: Ballantine 1605B
Image 1: Ballantine 1605B
Image 1: Ballantine 1605B
Image 1: Ballantine 1605B
Damaged N input connectors replacement
Image 1: Ballantine 1605B
Image 1: Ballantine 1605B
Image 1: Ballantine 1605B
Test results and benchmarks
TBD..
Summary
To be continued.
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Modified: June 10, 2020, 3:55 p.m.