Re: Troubleshooting a 9845C
Hi Dave,toggle quoted messageShow quoted text
What is the health of the color monitor power supply ?
On the 9845C, the PSU inside the monitor is usually the "hard to solve" problem. You should check the 98770 service manual and the 98770 schematics for more information and for how to check if the PSU is working correctly. At least, there are no RIFA capacitors on the 98770 monitor PSU (at least none on mine).
If you know for a fact that your monitor PSU is ok then you could try to swap boards if you have another working 9845. If not then maybe the internal ROMs have gone bad and should be replaced.
Good luck with this project ! At least you have a chance to make it work. I am missing to many parts in my 98770 monitor to even start thinking about fixing it. :-(
On Jan 31, 2020, at 17:12, Dave via Groups.Io <dfnr2@...> wrote: