Toshiba TDP- T80 Service Manual page 36

3-4.5 CW index delay menu (includes the DMD bias voltage)
(Press Hot Keys, then press "Return"+"Left" key simultaneously
Key :
a.) CW index adjustment
Procedure :
b.) DMD bias voltage adjustment
Procedure :
c.) Save data to EEPROM
Procedure :
Push Up / Down / Left / Right at the same time.
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