Sony DVW-522 Maintenance Manual page 112

5-2. Servo/DT System Check Mode
a) C050: DT DRIVER CHECK
This mode checks the bimorph drive control circuit (on the SS board) by the
loopback in a bimorph drive amplifier (on the DT-34B board).
(1) Set the "*" mark to "Start auto check" using a search dial (JOG mode).
(2) When the SET button (or switch S300 on the SS board) is pressed after the
"Push SET button" message is displayed, this check is initiated.
(3) Confirm that the check is completed and that the "CHECK COMPLETE"
message is displayed on the monitor screen.
In case of NG; (The screen at right is one example.)
When the "CHECK COMPLETE" message is not displayed on the monitor
screen.
Check bimorph drive amplifier (DT-34B board) and slip ring.
Also check the bimorph drive control circuit (SS board).
5-30
DIGITAL DT CHECK
C050:DT DRIVER CHECK
*No operation
Start auto check
(1) DIAL
(2) [SET] or [S300]
DIGITAL DT CHECK
C050:DT DRIVER CHECK
No operation
*Start auto check
CHECKING......
During check
DIGITAL DT CHECK
C050:DT DRIVER CHECK
No operation
*Start auto check
CHECK COMPLETE
Check completed (OK)
DIGITAL DT CHECK
C050:DT DRIVER CHECK
No operation
*Start auto check
# CHECK INCOMPLETE #
A/Bch
Check completed (NG)