Zenith DVP7771 Manual page 19

F. Picture abnormal
PICTURE ABNORMAL
Check the disc.
Refer to Servo part
If OK
Check MPEG_CLK Signal
of MPEG part
YES (If OK)
Check DSP
YES (If OK)
Check MPEG
YES (If OK)
Replace B/D
H. Open/Close abnormal
Check the connection of MD.
YES
Refer to SERVO part.
OPEN/CLOSE ABNORMAL
YES (If OK)
Check the
connection of CON 901
YES
NO
Check IC303 Pins 89, 82
YES
G. Disc Error
DISC ERROR
Check Disc
YES (If OK)
Refer to Servo part
YES (If OK)
Replace B/D
NO
Reconnect it.
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