ozcber,Hello Guitar_199, could you kindly re-scan just the circuit schematic diagram please, as I cannot read many of the values of the CM550 components.
Many thanks, thank you.
I got back and took a look at what I had..... and I am not scanning this. THIS is the official SAMS scan copy. This is what Howard SAMS would sell you if you ordered it.
One avenue that you may try.......
In this very forum .... right up at the top.... member Dan McClain has a fairly complete set of paper manuals.... and quite regularly is asked to scan items out of his library. If you follow this link and make a posting there..... telling him...
SMS CB-292 is the volume and that you are looking for the Motorola CM-550 information......
if he HAS that volume he will scan what you need from it and THAT will be a fresh scan that MAY be better. He scans them to PDF and posts them right back under the request.... and you can click-download it.
This link should take you straight to that resource.... just click, scroll all the way to the bottom and make your request like a whole new posting........
Sams PhotoFacts Collection
Look at this radio on flea bay and see if it looks similar https://www.ebay.com/itm/354517508382?mkcid=1&mkrid=711-53200-19255-0&siteid=0&campid=5336136228&customid=&toolid=10001&mkevt=1 73 Jeff It does not have the modulation lamp/indicator...... the color scheme is identical..... But it...
www.worldwidedx.com
I am hoping this gives you what you need.
Bob