Panasonic DVCPRO AJ-D455P Service Manual page 74

4-14.Component Y-Pb Timing
Adjustment
BOARD
V OUT (F2)
TP Y OUT (CH B1), Pb OUT (CH B2)
ADJ. VR302 (Pb DL)
TAPE 525(NTSC): VFM3580KM (L)
Alignment Tape (Bowtie portion)
INPUT -----
MODE PLAY
M. EQ
Analog WFM (Bowtie mode)
Y Pb Timing : 0 ± 5nsec
SPEC.
1. Adjust VR302 so that the crossing point of the
Bowtie signal becomes a center (Timing = 0 ±
5nsec).
<Note>
Incase of WFM does not have "Bowtie mode" (Y-Pb
timing adjustment mode), if the oscilloscope has
"ADD" and "INVERT" switch, it is possible to make the
following waveform by those switch.
Y OUT
+
Pb OUT
(CH B1-CH B2)
Center
0 ± 5nsec
4-15.Component Y-Pr Timing
Adjustment
BOARD
V OUT (F2)
TP Y OUT (CH B1), Pr OUT (CH B3)
ADJ. VR303 (Pr DL)
TAPE 525(NTSC): VFM3580KM (L)
Alignment Tape (Bowtie portion)
INPUT -----
MODE PLAY
M. EQ
Analog WFM (Bowtie mode)
Y Pr Timing : 0 ± 5nsec
SPEC.
1. Adjust VR302 so that the crossing point of the
Bowtie signal becomes a center (Timing =
).
5nsec
<Note>
Incase of WFM does not have "Bowtie mode" (Y-Pb
timing adjustment mode), if the oscilloscope has
"ADD" and "INVERT" switch, it is possible to make the
following waveform by those switch.
Y OUT
+
Pr OUT
(CH B1-CH B3)
ELE-17
Center
0 ± 5nsec
0±