3-4
1 PB switching
point adjust-
ment
Alignment tape,
VFK1842
color bar
recorded section
• PLAY
• ADJUST
MENU, 100.
PB SW
POINT
(1)Select ADJUST MENU No. 100, "PB SW
POINT".
(2)Playback the alignment tape. Confirm that the
compatibility adjustment has been performed
and the FM waveform at TP9 (ENV OUT) is flat
and stable.
(3)Press the [ SET ] button to cause the *
marking to blink. The PB switching point will
be adjusted automatically.
TP6 (SPA)
TP9 (ENV OUT)
TRIG: TP5 (HID)
GND: TP1 (GND)
[Rewrite board]
Auto adjustment
a and b = 126 µ sec
10 µ sec
Measuring
Measuring point ( )
No. Item instruments & Mode
Adjustment parts ( )
Adjustment procedure
Input signals
Adjustment level ( )
3.2 DVC UNIT ADJUSTMENTS
Preparation : Connect the Rewrite board (VFK1846) to
CN4004 on the Main board. Connect it in the ori-
entation shown in Fig. 3.2, so that the test point
surface (component mounting surface) faces to-
ward the rear.
NOTE : DVC UNIT ADJUSTMENTS can be completed if
NTSC mode is performed.
Set the NTSC/PAL switch of the rear panel to NTSC.
Fig. 3.2 Rewrite board connection method
REWRITE board
Fig. 3.2.1(1)
a
a, b : 126µ sec ±10µ sec
b
HID (TP5)
SPA (TP6)
ENV OUT
(TP9)
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