Sony SRW-5000, Руководство по обслуживанию, Страница: 119 / 438

3-25
SRW-5000/5500
Capstan shaft
(Unthreading end state)
[F9]
(CAPSTN MOTOR) key
This menu checks the function of the capstan motor.
Checking
1. Press the
[F9]
(CAPSTN MOTOR) key of the SERVO CHECK menu to
display the CAPSTAN MOTOR menu.
2. Press the
[SET]
key.
.
Check to see that a capstan shaft rotates in the forward (
3
) direction.
.
Check to see that the capstan shaft stops after displaying a message
“FORWARD...OK” on the color display.
3. Press the
[SET]
key again.
.
Check to see that the capstan shaft rotates in the reverse (
2
) direction.
.
Check to see that the capstan shaft stops after displaying a message
“REVERSE...OK” on the color display.
4. To finish the check, press the
[F10]
(EXIT) key.
5. Press the
[F10]
(EXIT) key while pressing the
[SFT]
(SHIFT) key.
6. Press the
[F10]
(EXIT) key after the message “Check Complete” is displayed to
return to the SERVO CHECK menu.
In case of NG
.
Check the mechanical abnormality.
.
Check the capstan motor driver circuit on the DR-508 board.
.
Check the FG output from the capstan motor.
.
Check the capstan FG shaping circuit on the SS-95 board.
.
Check each circuit that processes the capstan FG on the SS-95 board.
.
Check the capstan motor.
Location of Capstan Shaft
F1
F2
F3
F4
DIAG
ALT F5 F6 F7 F8 F9 F10
CASSTT
SW
CASSTT
CMP SW
S REEL
MOTOR
CCM
MOTOR
EXIT
SERVO CHECK MENU
TE
SNSR
DEW
SNSR
T REEL
MOTOR
CAPSTN
MOTOR
THREAD
MOTOR
CAPSTAN MOTOR
Press SET key.
SERVO CHECK MENU
PUSH SET
FORWARD. . .
CAPSTAN: 2.65(r.p.s.)
SERVO CHECK MENU
PUSH SET
FORWARD. . .OK
CAPSTAN: 0.00(r.p.s.)
[SET]
After about 10 sec.