Servo System Alignment - Sony AV-3600 Service Manual

SECTION
6
SERVO SYSTEM ALIGNMENT
The
servo
system alignment procedure and sequence
is
shown
in
Chart 6-1.
Drum-Speed
Control
System
Phase Control System
FREE-RUNNING SPEED CHECK
(Sec.
6-1)
I
VERTICAL SYNC SEPARATOR CHECK
(Sec.
6-2)
I
2:
1
FREQUENCY
DIVIDER
CHECK
(Sec.
6-3)
Complete
Drum-Speed
Control
System
30-Hz
PULSE
ADJUSTMENT
(Sec. 6-4)
i
30-PG
PULSE LOCK PHASE
ADJUSTMENT
I
(Sec. 6-5)
SERVO RESPONSE-TIME
ADJUSTMENT
(Sec.
6-6)
I
PLAYBACK SERVO CHECK
(PB) (Sec. 6-7)
i
30 PG
PULSE POSITION
CHECK
(30
PG
Coil Position) (Sec. 6-8)
I
30
PG
PULSE PHASE
CHECK
(Sec. 6-9)
i i
SERVO REFERENCE SERVO REFERENCE
DELAY
MV(REC)
DELAY MV
(PB|
(Sec.
6-10)
(Sec. 6-11)
'
—
i
—
-
1
TRACKING CONTROL CHECK
(Sec.
6-12)
Camera
Control
System
VERTICAL
SYNC FORMER CHECK
(Sec.
6-13)
Chart 6-
/.
Servo system alignment
5- 1