NAD CI980, Service Manual, Page: 8 / 35

Connect AC from CI980
IS Red LED LIGH TED?
PRESSSTB TOUCH KEY MAKE THE
UNIT WORK NORMALLY?
IS PLAY NORMAL?
IS PREOUT NOLMAL?
OK
IS LED WHITE?
CHECK TRIGGER OFF ?
CHECK TRIGGER AUOT ?
CHECK TRIGGER ON ?
CHECK CONNECTER
YES
CHECK STB +5V
CHECK TRIGGER CIRCUIT
CHECK SIGNAL DETECTION CIRCUIT
YES
YES
YES
YES
NO
NO
NO
NO
NO
CHECK POWER FUS ?
CHECK ALL POWER
YES
YES
YES
YES
YES
IS 12V TRIGGER NORNAL?
NO
SUPPLIES OK?
CHECK ALL POWER
SUPPLIES OK?
TROUBLESHOOTING GUIDE
10