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Note:
¢
Set the REC/PLAY SPEED button to indicator panel in the
SP mode.
Start of play
= REC button
*
Self-recording means "Record any broadcasting or video
back display
ON
signal and playback the just-recorded portion."
("Within 3
Within
2-ypereit Adjusting —,
secs.
—
SeCS.
period
|
ab
15secs.
!
Measuring Point | Measuring Equipment}
Adj. Condition
TP101
Oscilloscope
PLAY (SP) mode
(VIDEO OUT)
Alignment tape
TP183
VHJ-0009
(RF SW-P)
(PM-S6)
Fig. 2-1-3
=
+
Adj. Location
Adj. Value
T=6.5H £0.5H
REC button
CHANNEL (A/¥) button
'6.5H+0.5H
PLAY button
1.
At playback starts, press the REC button 3 times within 3
seconds after the playback picture comes out. However,
Front edge of
these 3-push must be done within 2 seconds, and last push
mortem sytem
must be kept pressed for 0.5 seconds. (Fig. 2-1-3)
| Fall
RF. SW PULSE
2.
"P 0:00" is appeared in FLD, and it becomes the adjustment
y
u
mode. This indication value changes automatically, and
Fig. 2-1-4
6.5 H adjustment is done. When this value stops, adjust-
ment value almost becomes 6.5 H.
3.
Observe the video output signal by the oscilloscope,
2-1-4. SP STILL V-LOCK ADJ.
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.
Picture of
Monoscope pattern | Self-recording
2-1-4)
monitor
(SP mode)
4.
After the adiustment data is fixed (it should be within 15
STILL mode
seconds from the adjustment mode start), press the PLAY
Adi. Val
button more than 1 second. Then the indication changes to
JEOCeuOR
eee
"P —:-—", it writes the data (delay quantity) to the E7PROM.
CHANNEL A or ¥ buiton
The minimum vertical shake
(If it passes through 15 seconds before pushing the PLAY
button, the intake of the data isn't done, and it finishes the
1.
Set the REC/PLAY SPEED button to the SP mode.
adjustment mode.)
2.
Play back the own recorded portion of the tape and then set
5.
Ifitis notin 6.5 H + 0.5 at the time of the confirmation by the
the VCR in the STILL mode.
above 3., make manual fine adjustment by pressing the
3.
Press the CHANNEL Aor Whutton so that the vertical shake
CHANNEL buiton, and do the operation of 4.
of picture becomes its minimum.
2-2. IF CIRCUIT ADJUSTMENT
¢
inthis model, the circuits of the TUNER,
IF, and RF
Note: The 3 in tuner dose not need any adjustments, because
converter have been made into one. Therefore, should one
precise adjustments were down before shipment.
circuit malfunction, the whole unit must be replaced.
¢
The adjustments for the IF (RF AGC) circuit of the 3 in 1
tuner are described below.
2-2-1. TEST EQUIPMENT AND STANDARD REQUIRED
Monitor TV
—10—
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