Sony HDW-750 Maintenance Manual page 120

3-1. When Does the Error Code Appear?
SLACK-62
Contents : Time-over of the function cam reverse rotation is detected.
Detecting conditions : The function cam cannot complete its reverse rotation within the specified time.
. Mechanical load to the gear block is so high that it cannot drive the function
Suspected cause :
cam. (Mechanical reason)
. Reflection seal for detecting the cam position is dirty.
. Loading motor is defective.
. Loading motor drive circuit (MDC-13, SS-92 boards) is defective.
. Cam position detector circuit (MDC-13, SS-92 boards) is defective.
SLACK-63
Contents : Time-over of the tape top sensor is detected.
Detecting conditions : The short-forward tape movement after tape top detection cannot be completed
within the specified time.
. Tape tension is so high that the tape cannot run. (Mechanical reason)
Suspected cause :
. Tape position detector sensor circuit (MDC-13, SS-92 boards) is defective.
. Tape top sensor is defective.
SLACK-64
Contents : Time-over of the full top sensor is detected.
Detecting conditions : Tape full top is detected at the end of loading.
. Tape position detector sensor circuit (MDC-13, SS-92 boards) is defective.
Suspected cause :
. Full top sensor is defective.
SLACK-65
Contents : Time-over of the tape end sensor is detected.
Detecting conditions : The short-reverse tape movement after tape end detection cannot be completed
within the specified time.
Suspected cause : . Tape tension is so high that the tape cannot run. (Mechanical reason)
. Tape position detector sensor circuit (MDC-13, SS-92 boards) is defective.
. Tape end sensor is defective.
SLACK-70
Contents : Abnormality is detected in the servo EEPROM communication.
Detecting conditions : (1) The error in the communication with the servo EEPROM is detected.
(2) The checksum does not match.
. IC403 on the MDC-13 board is defective.
Suspected cause :
. Signal path between the MDC-13 board and the SS-92 board is defective.
SLACK-71
Contents : Abnormality is detected in the system control initialization command.
Detecting conditions : The initialization command is not completed within the specified time at the event
of power-on with a cassette being inserted.
. Signal path between the FP-121 board and the SS-92 board is defective.
Suspected cause :
3-6
HDW-750/750CE V1