Gauge Cluster Calibrator

[Heineken]

Nice to see someone else making gadgets and widgets to test nsx systems. With the age of the car now, the knowledge base for original test equipment, and the availability of original test equipment will be naturally falling off, so it's good to see people developing new kit. Now you have the basics sorted, can control the pulse levels at will, it's a small programming step to a showboat sweep display or automatic stepping between defined levels!!!

Oh, and note that 2 caps in the dash are bipolar electrolytics....

There are certainly options for a little extra Bling but probably won't increase usability
Maybe adding a "long-press" demo-mode in the future .. who knows .. ?

PS: The caps have been identified and the BP ones detected successfully

[britlude]

There are certainly options for a little extra Bling but probably won't increase usability
Maybe adding a "long-press" demo-mode in the future .. who knows .. ?

I was thinking more along the lines of once the calibration process has been carried out, it would be a nice satisfying double check for it to sequence automatically between the 1000's rpm levels or 10/20mph on the speedo....

It'll also be interesting how much changing the electrolytic caps makes on the calibration, or if they are just for power rail smoothing and heavy duty signal conditioning

[ozon02]

it's great that you wanted to share the idea on the forum and shared the documentation.
Congratulations!!!

[Heineken]

it's great that you wanted to share the idea on the forum and shared the documentation.
Congratulations!!!

Thanks, hopefully it's going to be helpful

[Heineken]

I was thinking more along the lines of once the calibration process has been carried out, it would be a nice satisfying double check for it to sequence automatically between the 1000's rpm levels or 10/20mph on the speedo....

It'll also be interesting how much changing the electrolytic caps makes on the calibration, or if they are just for power rail smoothing and heavy duty signal conditioning

Once the caps are exchanged, maybe some of these questions can be answered.
One large cap is very likely for stabilization, most of the others seem to be part of the pulse-to-voltage converters that are used to drive the dials. The remaining ones could be related to the timing of some of the warning lamps (brake light circuit), maybe?

To bad we don't have the full schematics. That would be a nice reverse engineering job but if we start with that my caps will probably be never exchanged ..