Sony SRW-5000, Руководство по обслуживанию, Страница: 193 / 438

3-99
SRW-5000/5500
For Automatic Adjustment Failure
Check according to the procedures below when the
massage “NG” is displayed in the adjustment menus
[F2]
(RF ALL ADJ) to
[F9]
(AD GAIN).
(1) Confirm whether the specified alignment tape is used.
If the specified alignment tape is not used, execute the
automatic adjustment by the specified one.
When no abnormality is found, the adjustment is
completed.
(2) Clean the drum (rotary heads) according to the “For
Check Failure NG” in “3-3-7. RF CHECK Menu”.
This operation is not required when the drum has been
already cleaned.
(3) When message “NG” is displayed during execution of
menus other than the
[F2]
(RF ALL ADJ) or
[F6]
(PLAY PLL), perform the
[F2]
(RF ALL ADJ).
When no abnormality is found, the adjustment is
completed.
If the message “NG” is still displayed, the possible cause
below are considered.
.
Servo system adjustment defect or circuit defect
8
Readjust the servo system. (Refer to Section 3-4-2.)
[F2]
(AUTO ADJ) of the SERVO ADJUST menu.
8
Check the servo system. (Refer to Section 3-3-4.)
.
Brush/slip ring assembly defect or its part installation/
connection defect
8
Replace or reinstall the brush/slip ring assembly.
.
Harness (between the EQ-94 board and drum assembly)
connection defect
.
RF system adjustment defect
8
Readjust the RF system.
[F2]
(RF ALL ADJ)
.
Worn PB head in the drum assembly
8
Replace the drum assembly as required.
.
In the tape transport system adjustment defect or compo-
nent part installation defect
8
Readjust the tape transport system or reinstall the
part.
.
EQ-94 board defect
.
Drum assembly defect