This service manual is a good copy of the original, complete and fully readable. It is really useful to repair my Tv set following its clear instructions.
I was having a hard time finding the problem with this Mackie 1604 unit. I didn't have a schematic. Went looking on the web and found your site and the price was more then reasonable. Ordered it and within the hour had the manual and within 15 minutes had the unit fixed. Best $4.99 I ever spent. Thank you.
Doug
Text excerpt from page 8 (click to view)
2. Insert a MD (either record/playback or playback only type) 3. After TOC reading, press [MD / ] button.
4. Press [STOP ] button. If an error is found, a self-diagnostic key appears on the display. If several errors are found, the display shows these keys when [STOP ] button is pressed repeatedly. (Ex.: MD F15 - MD F26 F22). If no error is found, only the message, "TEST" appears on the display.