Sony GY-8240UWD Maintenance Manual page 374

5-13. Troubleshooting
3x1D
Description:
Illegal positional relationship among cassette compartment, thread, and reel shift
Possible cause: . Failure of unthread sensor
. Failure of thread end sensor
. Failure of threading end/unthreading end sensor input port (IC902 of SV205 board)
. Failure of threading motor
. Failure of threading motor drive circuit
. Threading mechanism problems
. Failure of S or L position sensor (SV-205 board)
. Reel shift mechanism problems
. Failure of reel shift motor
. Failure of reel shift drive circuit (SV-205 board)
. Failure of reel shift sensor input port (IC902 of SV-205 board)
3x26
Description:
Emergency eject was pressed
Possible cause: . Emergency eject was pressed.
3x28
Description:
Drum overcurrent
Possible cause: . Failure of drum drive circuit (SV-205 board)
. Failure of drum motor
. Failure of S tension sensor or related circuit (SV-205 board)
3x2A
Description: Checksum error of SV adjustment value data
Possible cause: . Failure of flash memory (IC816 of SV-205 board) for saving servo adjustment value
. Failure of peripheral circuits of bus
. Improper automatic adjustments
3x34
Description:
The reference signal from the FM-75 board is not detected during operating.
Possible cause: . Failure of FM-75 board
. Disconnection of harness (MB/SV, flat cable)
3x3A
Description: Capstan and T reel not synchronized in the speed rate.
Possible cause: . T Reel Brake trouble
. T Reel Motor trouble
. T Reel Driver trouble
. Tape Path trouble T side
. BOT not detectable due to T side Tape Path trouble, including T-draw guide
. BOT/EOT sensors or a detection circuit trouble
5-158
GY-8240UWD
GY-8240FC