It's great to be able to obtain a precious technical information for a real old equipment. The one I got helps me a lot in the area of wiring diagram to repair my antique. PDF gave me clear enough information to find out thr details. Thanks for giving me the oppotunity to be able to access to almost vanished informations.
Good quality for the scan, complete, but as usual for Tascam, not so comprehensive !
Text excerpt from page 6 (click to view)
KRC-478R/RV/RY/RYV
TEST MODE
1. How to enter the test mode � Reset the unit while holding the �FM� key and preset �6� key. � All indication segments go ON at the beginning of the test mode. 2. How to check the test mode � Cancel the blank skip (B.S). � Push the �ATT� key. � The eject function works. 3. How to release the test mode � Simply reset the unit. � (NOTE) The test mode is not canceled by ACC OFF, power OFF, momentary power down or the panel off. 4. Audio adjustment � Set the volume level to -10dB (which is shown as �30� on the display). � Loudness OFF. � The BASS/TREBLE and BALANCE/FADER can be set to the full-boost/full-cut and full-front/full-rear each by pressing the �Track UP� / �Track DOWN� keys. � Sound coordination doesn't appear for the feed.