Sony HDW-750 Maintenance Manual page 119

SLACK-23
Contents : Abnormality is detected in the rotating direction of capstan.
Detecting conditions : Direction command of the capstan rotation does not match with the detected
direction of capstan rotation for the specified period of time.
Suspected cause : . Capstan motor drive circuit (MDC-13 board) is defective.
. Capstan FG detector circuit (MDC-13, SS-92 boards) is defective.
. Capstan motor is defective.
SLACK-24
Contents : Abnormality is detected in the capstan speed.
Detecting conditions : The measured capstan speed does not reach the specified speed even when the
specified time has elapsed. (Only in the x1 speed or more)
. Mechanical load to the capstan motor is so high that the capstan motor cannot
Suspected cause :
reach the specified speed. (Mechanical reason)
. Capstan motor drive circuit (MDC-13 board) is defective.
. Capstan FG detector circuit (MDC-13, SS-92 boards) is defective.
. Capstan motor is defective.
SLACK-32
Contents : Abnormality is detected in the S-reel FG signal.
Detecting conditions : The S-reel FG counter does not count up nor down while the tape is running. (Only
in the x1 speed or more)
. Pressure force of the pinch arm is insufficient.
Suspected cause :
. Mechanical driving force is not transmitted to the S-reel. (Mechanical reason)
. S-reel FG detector circuit (MDC-13, SS-92 boards) is defective.
. Tape is being broken.
. Tape tension is so high that the tape cannot run.
SLACK-42
Contents : Abnormality is detected in the T-reel FG signal.
Detecting conditions : (1) The T-reel FG counter does not count up nor down during unthreading.
(2) The FWD tape movement at the end of threading cannot be completed.
(3) The reel tightening operation during cassette-in and cassette-out cannot be
completed.
(4) The T-reel FG counter does not count up nor down while the tape is running.
(Only in the x1 speed or more)
Suspected cause : . Cassette tape is not inserted. (Cassette-in sensor is defective.)
. Pressure force of the pinch arm is insufficient.
. Mechanical driving force is not transmitted to the T-reel. (Mechanical reason)
. T-reel FG detector circuit (MDC-13, SS-92 boards) is defective.
. Tape is being broken.
. Tape tension is so high that the tape cannot run.
SLACK-61
Contents : Time-over of the function cam forward rotation is detected.
Detecting conditions : The function cam cannot complete its forward rotation within the specified time.
Suspected cause : . Mechanical load to the gear block is so high that it cannot drive the function
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.
HDW-750/750CE V1
3-1. When Does the Error Code Appear?
3-5