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Verfügbare Sprachen
Verfügbare Sprachen
TAPE RUNNING ADJUSTMENT
1.
Making use of the master plance and reel disk height
adjusting jig, check and adjust the reel disk height and
cassette stay height.
. Making use of the retaining guide pole height adjusting
Jig, check and adjust the height of the retaining guides
poles (take-up side and supply side).
check
and adjust the position
and verticality of the
tension pole.
. Use
a special-purpose
(rough-adjustment)
tape
and
play it back; roughly adjust the guide roller's height
by using
a bladed
screwdriver
(specialized
for this
purpose)
and
allow the low edge of the tape to run
along the drum's
lead.
Then check that the tape is
not curled at the flange of the take-up and/or supply
guide roller.
guide roller so that the envelope
of the reproduced
output signal will be as flat as possible.
Simultaneous-
ly, check
flantness
with
a rotation
of the tracking
knob.
In addition, adjust it so as to have the switching
point be at "6.5 + 0.5 H".
Video head (2-CH)
Lead (red)
@-
®
©
Lead holder
Lead
(yellow)
© Reassembly
1,
Set in place the new upper drum as shown in Fig. 74,
and position the leads.
Note:
Pay special attention to the yellow/brown leads (CH-1)
and yellow/red leads (CH-2).
Note:
The soldering must be done quickly.
two screws (3P + 4S).
running.
(1) Adjustment of playback switching point.
Adjust the height, tilting and azimuth of the A/C head.
Set the tracking knob first at the "preset" position,
slightly loosen the two machine screws (WSP3P + 8P)
shown
in Fig. 74 inserting the X-position
adjusting
into its hole, and
shift the A/C head
fully towards
the capstan side and get it back until the envelope of
the
reproduced
output
signal
becomes
maximum.
With
a recording
on
a standard
tape, check for the
envelope flatness and audio effect.
and nuts.
REPLACEMENT OF THE UPPER DRUM
@ Replacement
WN
Ee
wn
Figure 74,
Withdraw the upper drum and replace.
Note:
Avoid touching the drum surface.
A) Lead (Yellow)
@
Lead (brown)
Video head (1-CH)
(2) Adjustment of record switchint point
(3) Checking of tracking pre-set
(4) Checking of tracking volume
(5) Checking of playback preamp. adjustment
(6) Checking of FM channel balance
TAPE RUNNING ADJUSTMENT
© Cassette tape setting
1.
2:
3.
4.
Remove the front cabinet.
Load a standard tape in the cassette housing.
Connect
the
power
supply
cord,
monitor
output
cord and video input cord to their respective positions.
Connect
one
end
"CH1"
of an oscilloscope
to RF
envelope output and another "'CH-2" to the test point
of switching pulse.
:
. Put the unit in PLAY mode.
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