3-14
DNW-A75/A75P
ERROR-20 CASSETTE COMPARTMENT MOTOR LOCK
(CASS COMP MOTOR)
Description: Malfunction of cassette compartment-up or down operation was detected.
Detecting condition: When no operation is completed within about six seconds after operation start.
Sub error message: None
Possible causes: . Cassette compartment block trouble
. Cassette compartment motor drive circuit (DR-315 board) trouble
. Cassette-down sensor (CL-29 board) trouble
. Cassette-down input port (IC1 on MS-58 board) trouble
Protecting operation: Stops the movement of the cassette compartment and reel table until a cassette
eject button is pushed.
ERROR-21 REEL SHIFT MOTOR LOCK
(REEL SFT MOTOR)
Description: Malfunction of movement of the reel table corresponding to the cassette size was
detected.
Detecting condition: When no operation is completed within about six seconds after operation start.
Sub error message: None
Possible causes: . Reel shift mechanism trouble
. Reel shift motor trouble
. Reel shift motor drive circuit (DR-315 board) trouble
. Reel position sensor (PTC-71 board) trouble (S position sensor or L position
sensor)
. Reel position input port (IC1 on MS-58 board) trouble
Protecting operation: Stops the movement of the reel table and ejects the cassette during cassette
loading.
3-2. Details of Error Messages
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