My once working SMIQ04 would not pass internal alignment the other day citing errors on ALC and level preset. These were not the usual errors that surround the dead battery issues, instead the control voltages were 'OOT'.
Looking further, I found that test point 2109 (D_AMOD) tuning voltage AM modulation was at 13.95V. The expected range being 0.02 - 6.0V. Slightly horrible!
Checking out the AM modulation input from the convenient legend:
Further investigation:
Now my question to all of you out there who may own a SMIQ, have access to the board layout CAD files, and or schematic, could you please clue me into the values for the burnt components? I suspect they are all resistors for amp bias, but who knows. I tried extrapolating the component designations from the x-y coordinates from the service manuals online, but soon realized this was a great way to get to sleep.
Thanks!
Edit: Sorry about the image hosting.. I will find something better.