NAD T531B - Page 15

3-4
B. Audio abnormal
D. Open/Close abnormal
Check the
connection of P5901.
Check IC501 Pins 13, 14.
Check Audio jack.
YES (If OK)
YES
NO
NO
YES
YES
(If OK)
YES
YES
(If OK)
YES (If OK)
YES (If OK)
Check MPEG_CLK Signal
of MPEG part.
Refer to Audio part.
Refer to MPEG part.
Replace B/D.
Check Front.
Reconnect it.
Refer to SERVO part.
Check the connection of MD.
AUDIO ABNORMAL
OPEN/CLOSE ABNORMAL
C. Video abnormal
Check Video jack.
YES (If OK)
YES (If OK)
YES (If OK)
YES (If OK)
Refer to Video part.
Refer to Encoder part.
Refer to MPEG part.
Replace B/D.
VIDEO ABNORMAL