Sony DNW-A100 Maintenance Manual page 102

3-1. Error Message
ERROR-22 REEL POSITION SENSOR TROUBLE
Description: The L and S cassette positions of the reel table were detected simultaneously.
Detection conditions: When the L and S position sensors detect the L and S cassette positions, respec-
tively at the same time
Sub error message: None
Possible cause: . S position sensor (PTC-71 board) trouble
. L position sensor (PTC-71 board) trouble
. Reel position input port (IC1 on MS-50 board) trouble
Protection operation: Ejects the cassette if possible when an error occurs during cassette insertion.
Prohibits the cassette insertion.
ERROR-23 TH/UNTH END SENSOR TROUBLE
Description: The thread end and unthread end states were detected simultaneously.
Detection conditions: When the thread end and unthread end sensors detect the thread end and un-
thread end states, respectively at the same time
Sub error message: None
Possible cause: . Thread end sensor (TR-79 board) trouble
. Unthread end sensor (TR-79 board) trouble
. Thread/unthread end input port (IC1 on MS-50 board) trouble
Protection operation: Ejects the cassette during cassette insertion or ejection.
Enters the protection mode during tape threading/unthreading.
Stops the tape transport and enters the rest state in cases except the above.
3-14
DNW-A100/A50/A45
DNW-A100P/A50P/A45P