Panasonic AJ-D610WBp, Service Manual

Page: 92 / 363

ELE-36
7. SERVO
7-1. Reel Torque Offset
Adjustment
BOARD SERVO
TP
TP301[S], TP302[T]
TG300[GND]
TP116[5V], TP505, Sensor LED
ADJUST VR502[S], VR501[T]
MODE PLAY
TAPE -
M. EQ. DVM
SPEC.
20mV +/- 2mV
1. Confirm the power of Camera Recorder is OFF
and shorten TP116 and TP505 .
2. Turn the power ON, then cover the cassette tape
detection LED by black tube, and make a loading
without a cassette.
3. Pinch and Hold the S reel and make PLAY mode.
4. Connect a DVM to
TP301[S] and adjust VR502[S]
so that the voltage is in the specification.
5. Connect a DVM to TP302[T] and adjust VR501[T]
so that the voltage is in the specification.
6. Turn the power OFF after adjustment, and remove
the short pin and the black tube.
<Note>
Please prepare the black tube locally.
7-2. Tension Offset Adjustment
BOARD SERVO
TP TP402
ADJUST VR402
MODE EJECT
TAPE -
M. EQ. DVM
SPEC. 2.5V +/- 0.1V
1. Connect a DVM to TP402 and adjust VR402 so
that the voltage is in the specification.
7-3. Tape End Detect Level
Confirmation
BOARD SERVO
TP
TP503(P620-9pin)
TP504(P620-12pin)
ADJUST VR503, VR504
MODE -
TAPE
VFK1423(Tape End Detect
Adjustment Cassette)
M. EQ. Oscilloscope
SPEC. Vs, Vt = 3.2V+/-0.8V
1. Insert an adjustment cassette VFK1423 .
This cassette can insert same as a normal
cassette.
2. Connect a scope to
TP503[Vs]
and adjust
VR503
so that the voltage is in the specification.
3. Connect a scope to TP504[Vt] and adjust VR504
so that the voltage is in the specification.
Vs , Vt
GND