Sony GY-2120WD Maintenance Manual page 394

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6-3. Error Processing
2x 20
(ERROR 20) Cassette compartment driving overtime
Description:Malfunction of cassette compartment-up or down operation was detected.
Detection conditions:
Subcode:
Possible cause:
Protection operation:
2x 21
(ERROR 21) Reel shift driving overtime
Description:Malfunction of movement of the reel table corresponding to the cassette size was detected.
Detection conditions:
Subcode:
Possible cause:
Protection operation:
6-170
When no operation is completed even about six seconds after operation start
None (Displays 00.)
. Cassette compartment block trouble
. Cassette compartment motor drive circuit (DR-327 board or MS-54 board) trouble
. Cassette-down sensor (CL-29 board) trouble
. Cassette-down input port (MS-54 board) trouble
Stops the movement of the cassette compartment and reel table until a cassette eject
command is received.
When no operation is completed even about six seconds after operation start
None (Displays 00.)
. Reel shift mechanism trouble
. Reel shift motor trouble
. Reel shift motor drive circuit (DR-327 board or MS-54 board) trouble
. Reel position sensor (PTC-71 board) trouble (S position sensor or L position sensor)
. Reel position inpur port (MS-54 board) trouble
Stops the movement of the reel table and ejects the cassette during cassette loading.
GY-2120WD/WS

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