Kenwood CD-4900M? DPF-J9030 Service Manual page 7

3. Error code
DISPLAY
MECHA ERROR 01 No input of S3. The original position error of Disc Number.
MECHA ERROR 02 No input of S2. The turning direction error to counterclockwise.
MECHA ERROR 03 No input of S1. The turning direction error to clockwise.
MECHA ERROR 04 No input of main load sw.
MECHA ERROR 05 No input of main unload sw.
MECHA ERROR 06 No input of sub load sw.
MECHA ERROR 07 No input of sub unload sw.
MECHA ERROR 08 No backed up(AC power cord has disconnected).
S1-3: Mechanism address detector switch.
There are load and unload switches in the main pickup.
CD-4900M/DPF-J9030
CIRCUIT DESCRIPTION
ERROR CONTENTS
SENSOR PCB
S2
S3 S1
S1 DISC 1~9
S2 DISC 10~99
S3 DISC 100~200
7