Sony GY-8240UWD Maintenance Manual page 372

5-13. Troubleshooting
3x0E
Description:
Excessive S tension
Possible cause: . Failure of cassette compartment, or improperly installed
* Reel does not rotate because cassette is raised from standard position
. Failure of S tension sensor or related circuit (SV-205 board)
. Failure of S reel motor
. Improper adjustment of servo related to S reel, S tension sensor
. Failure of S reel brake
. Failure of S reel brake solenoid drive circuit (SV-205 board)
. Disconnection of harness
3x12
Description:
Drum could not lock.
Possible cause: . Failure of drum motor
. Failure of drum control IC (IC805 of SV-205 board)
. Failure of drum motor drive circuit (SV-205 board)
. Failure of drum PG/FG waveform shaping circuit (SV-205 board)
3x14
Description:
Abnormal capstan speed
Possible cause: . Failure of capstan motor
. Failure of capstan control IC (IC805 of SV-205 board)
. Failure of capstan motor drive circuit (SV-205 board)
. Failure of FG sensor in capstan motor
. Failure of capstan FG amplifier (SV-205 board)
. Improper adjustment of capstan servo
3x15
Description:
Abnormal T reel speed
Possible cause: . Failure of cassette compartment, or improperly installed
* Reel does not rotate because cassette is raised from standard position
. Failure of T reel motor
. Failure of T reel motor drive circuit
. Failure of FG sensor in T reel motor
. Failure of T reel motor FG amplifier (SV-205 board)
. Improper adjustment of T reel servo
5-156
GY-8240UWD
GY-8240FC