Sanyo VHR-VX400 Service Manual page 11

L
L
L
Note:
Set the REC/PLAY SPEED button to indicator panel in the
SP mode.
Self-recording means "Record any broadcasting or video
signal and playback the just-recorded oortion."
2-1-3.
SWITCHING POSITION ADJ.
Measuring Point Measuring Equipment Adj. Condition
TP101 Oscilloscope PLAY (SP) mode
(VIDEO OUT)
Alignment tape
TP183
VHJ-0009
(RF
SW-P)
(PM-S6)
Adj. Location
I
Adj. Value
I
REC button
CHANNEL A (+)/7(–) button 6.5 H * 0.5 H
PLAY button
1.
2.
3.
4.
5.
At playback starts, press the REC button 3 times within 3
seconds after the playback picture comes out. However,
these 3-push must be done within 2 seconds, and last push
must be kept pressed for 0.5 seconds. (Fig. 2-1-3)
"P 000 is appeared in FLD, and it becomes the adjustment
mode. This indication value changes automatically, and 6.5
H adjustment is done. When this value stops, adjustment
value almost becomes 6.5 H.
Obaervethe video output signal by the oscilloscope, triggered
by the fall down point of RF SW PULSE (TP183), and
confirm that a front edge of V-SYNC is delayed for 6.5 H *
0.5 H from the fall down point of RF SW PULSE. (Fig. 2-1-
4)
After the adjustment data is fixed (it should be within 15
seconds from the adjustment mode start), press the PLAY
button more than 1 second. Then the indication changes to
"P –: –", it wriies the data (delay quantity) to the E'PROM.
(If it passes through 15 seconds before pushing the PLAY
button, the intake of the data isn't done, and it finishes the
adjustment mode.)
If it is not in 6.5 H * 0.5 at the time of the confirmation by the
above 3., make manual fine adjustment by pressing the
CHANNEL button. and do the operation of 4.
Start of play
REC button
back display ON
I I
'More + Adjusting +:
,- Within 3
~l+~eign
2+lthan I
, sees.
I
,0s , period
Sees.
15 sacs. '
Fig. 2-1+
H
}
Front edge of
vertical sync elgnel
Fall
i
RF. SW PULSE
4
Fig. 2-14
2-1-4. SP STILL V-LOCK ADJ.
Measuring Point Measuring Equipment Adj. Condition
1
1
CHANNELA(+) or~(–) buttonlThe minimum vertical shake
1.
2.
3.
Set the REC/PLAY SPEED button to the SP mode.
Play back the own recorded portion of the tape and then set
the VCR in the STILL mode.
Press the CHANNEL A(+) or V(–) button so that the vertical
shake of picture becomes its minimum.
'L
–11-