NAD C510 - Troubleshooting B

YES
Check 9VD
NONO
B
Check Q1007
YES
Play 1Khz sinewave track
YES
NO NO
F i n i sh
Line Output correct?
Apply signal to coax or optical
Output correct?
Check U1021
YES
5VR correct?
Mute relay open
After 5-8S?
Check J1003
Check Y1004, Y1005, U1000
Check U1006, U1008, U1012
Check driver on computer
TROUBLE SHOOTING B
8