Subject	The third IC converts the signal to display either...
Posted by	DVDBURN (MD) on April 17, 2012 at 7:10 PM
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In Reply To	What all is that "third IC" doing? posted by EUGENE on April 17, 2012 at 05:09 AM
Message	MPH or KPH and then drives the gauge needle to display the result. There are four outputs from that IC that go to the four speedometer gauge coil winding inputs. After checking it it's apparently a stepper type configuration because the voltages to those coil wires are a pulse type in nature and not a linear voltage in relation to the amount of speed. I cannot find any data sheet info on this chip so tying to reproduce what it is doing would be a challenge. I found other ICs for speedometers that do the same thing but not outputting a stepper voltage in the way this one does. It's probably going to be easier to modify the signal before it goes into the cluster. www.mytwinturbo.com Nissan Data Voice - The first Nissan diagnostic software with a voice! Nissan Data Voice on YouTube Download my Nissan 300ZX Vin/Model Lookup. Watch an ECZA meet caravan!
Follow Ups	Good/Bad news regarding the new style 200 mph gauges. - DVDBURN (MD) 21:12:52 04/16/12 Ouch :( (n/m) - samsung-Z [Houston] 21:31:19 04/16/12 Would something like this work? - Ted (92TT) 21:51:22 04/16/12 It might. - DVDBURN (MD) 19:34:08 04/17/12 OH snap!!! - DVDBURN (MD) 20:00:24 04/17/12 Let me know if there is anything I can help you with (n/m) - KongZTT GT28RS MD 00:15:03 04/17/12 What all is that "third IC" doing? - EUGENE 05:09:04 04/17/12 The third IC converts the signal to display either... - DVDBURN (MD) 19:10:26 04/17/12 Cooling the third turbo.. duh! :) (n/m) - BigTDogg (MA) 08:58:37 04/18/12 ::zing!:: (n/m) - Ted (92TT) 10:34:56 04/18/12
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