'17-'18 V7III tach failures

[Ronkom]

My '17 V7III Special had it's Tachometer just quit some time ago. New one is $500.00+ (yikes!). No luck finding a used one. I remember seeing a post where the writer identified the offending electronic part inside the tach. I don't remember which list it was on (I'm on several).  I'm about ready to open my tach up & replace the dead component,  IF I can find out what it is. Any help much appreciated.
Ron

[kballowe]

My '17 V7III Special had it's Tachometer just quit some time ago. New one is $500.00+ (yikes!). No luck finding a used one. I remember seeing a post where the writer identified the offending electronic part inside the tach. I don't remember which list it was on (I'm on several).  I'm about ready to open my tach up & replace the dead component,  IF I can find out what it is. Any help much appreciated.
Ron

I looked around, an this is the only thread that i could find.

https://wildguzzi.com/forum/index.php?topic=115710.0