NAD T572C Service Manual page 31

E. Picture abnormal
PICTURE ABNORMAL
Check the disc.
Refer to Servo part
If OK
Check DSP
YES (If OK)
Check PANTERA
YES (If OK)
Replace B/D
F. Disc Error
DISC ERROR
Check Disc
YES (If OK)
Refer to Servo part
YES (If OK)
Replace B/D
3-5