I PURHASED THIS PRODUCT BECAUSE I WAS HAVING PROBLEMS WITH MY CDR20 HARMAN KARDON RECORDER. WHICH I PURCHASED NEW 12 YEARS AGO. AFTER REVIEWING THE MANUAL, I WAS ABLE TO ADJUST THE TENSIONER IN THE SYSTEM. WORKS LIKE A CHAMP!.
SAVED ME AT LEAST 100.00 WHICH WAS WHAT A SERVICE REPAIR STATION WANTED. GREAT MANUAL EASY TO READ. SPECIALLY AFTER I PRINTED THE PAGES WHICH DEALT WITH MY RECORDER. THANKS A LOT!!!!!!!!
I have never bought a service manual which is as competely readable as this althogh it was a scanned pdf. Thank you for this succesful manual also cheaper than other sites.
Text excerpt from page 40 (click to view)
NC-500 ADJUSTMENT & CONFIRMATIONS OF OPERATIONS
ADJUSTMENT OF FREQUENCY a) Turn C702 CCW to set minimum position before POWER ON. b) Set the frequency at P702 to 32768Hz by adjusting C702 under the condition of no input and no load, immediately after POWER ON. c) After 4 ~ 6 minutes of heat running, re-adjust by following b.
OPERATIONS OF SPEAKER RELAYS The relay shall be ON about 5 seconds after POWER is ON and shall be OFF immediately after POWER is OFF. INITIAL SETTING FOR SHIPPING 1. Initialization of memories Press STANDBY/ON button while pressing down INPUT button when the unit is POWER ON, then the FLT displays "CLEAR", and turn to STAND-BY. Remove power cord from power line. 2. Other settings Pull out the AC cord at the standby mode.