Would it be feasable to use a PIC (in a monitor) for scan rate switching.

I have a Hitachi HM-4119 which scans at 50 to 64Khz. I'm considering
whether to use a PIC to detect if the scan rate is outside these limits
(mostly lower) and switch the appropriate internal components in the
monitor to allow it to scan at say 30 to 40 Khz and perhaps another
setting at say 40 to 50 Khz with (of course) some hysteresis.

I would expect most muti-sync monitors use this approach already.

My CTX1760 makes a click sound when it changes frequency - is this a
set of reed relays ?

Is this how its done or is my initial approach way off ?

If worth a try, what PIC variety would be a good starting point ?

Rgds

Mike

"OK Scotty - very funny - now beam up the clothes as well!"


Some say there is no magic but, all things begin with thought then it becomes
academic, then some poor slob works out a practical way to implement all that
theory, this is called Engineering - for most people another form of magic.
                                                                       Massen