Sony EVO-720P - Page 237

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2-6,
Switching
Position
Adjustment
(SE-7P
Board)
8-27.
Tracking
Adjustment
(SE-7P Board)
Mode
Playback
Mode
Piayback
|
Alignment
tape
:
Signal
Self-recorded
tape
in
SP
|
Signal
For
operation
confirmation
mode
)
(WRS-SCSP)
Measurement
Point
|
Pin
@
of
CNO06
(PB
V
RF)
|
CHI
:
TP103
on
HK-3
board
Measuring
Instrument
|
Oscilloscope
:
(LINE
OUT:
Adjusting
Element
_|
RV2i0
(TRACK)
\Measurement
Point
|
ogo,
Fin,
@
of
CN203)
=
Value
Maximum
RP
signal
level
'
(SV
RF
sw:
i
Pin
@
of
1C204)
[Measuring
Instrument
Oscilioscope
| Adjusting Element RV201
Specified
Value
6.5£0,3H
(416419
usec)
Lajusting method :
') Adjust to 6.5 £0.3H (416 £19 usec) with RV201,
1
iN
!
er = y _
Enlargement
Vertical SYNC signai
on
UT
a
|-65+0.3H--
(416219 usec)
CH2
Fig. 8-4, Switching position adjustment
Adjusting method :
1)
Adjust
RV2i0
so
that
PB
V
RF
signal
level
is
maximum,
2)
Play
back
in
reverse
direction
at
normal
speed
a
tape
self-recorded
on
the
same
unit
in
LP
mode,
and
confirm
that
no
noise
appears
on
the
monitor
screen
at
the
head
switching
position
(turn
RV210
if
necessary),
Maximize
amplitude
(
a TOP of screen
/*s Head switching
Ja~position
“Bottom of screen
Fig. 8-5,
—315—