Sony HDW-F500 Maintenance Manual page 182

4-4. Alternative Maintenance Menu
4-4-2. DT SYSTEM Adjustment
[F3] (CAPSTAN FG LVL) Key :
Measures the maximum and the minimum value of analog
voltage of capstan FG necessary in the detection of minute
rotational phase of the capstan. Using the value, the unit
continuously performs the conversion of the analog voltage
of capstan FG to the rotational phase.
(1) Press [F3] key from DT ADJUST menu to enter to
CAPSTAN FG LEVEL menu.
(2) Set the alignment tape HR5-1A to the unit. The unit
automatically starts the adjustment. During the
process of adjustment, message ADJUSTING....
continues to appear on the display.
(3) When the adjustment normally completed, message
ADJUST COMPLETE appears on the control panel
display.
(4) To save the adjustment data to NVRAM, press [F1]
key to execute NVRAM CTL command.
(5) Press [F10] (EXIT) key to end the adjustment. Also,
the alignment tape is automatically ejected.
When message #ADJUST INCOMPLETE# appears on the
display, check the following:
(The maximum and the minimum voltages of capstan FG
amp (on DR-307 board) is out of specification, or the unit
failed to achieve servo lock when the adjustment.)
• Check the capstan FG amp (on DR-307 board).
• Check the SS-88 board.
• Check the capstan motor.
• Check the servo system.
• Check the alignment tape HR5-1A.
• If there is a possibility of miss-operation, perform
re-adjustment.
4-66
CH.COND
N V R A M
C T L
DT ADJU ST
CAP STAN FG LEVEL
SE T
C A P S T N
H R5-1 A AL IGNM ENT TAPE
F G L V L
D R I V E
G A I N
H E A D
O F F S E T
D T AD J
TCR 00:0 0:00 :02
E X I T
HDW-F500E MMP1