Rec/Pb (F4); Setting; V-Blk Teletext Offset Level Adjustment; V-Blk Teletext Level Adjustment - Panasonic DVCPRO50 Service Manual

6. REC/PB (F4)

6-1. Setting

< User Menu & Front Switch Setting>
1. Open the User Menu and set the items as shown
below.
MENU
012 SYS FORMAT
013 PB FORMAT
803 TELETEXT DET
804 BLANK LINE
2. Set the Front Switch as shown bellow.
MODE SW
TCG SW
SUPER
6-2. V-BLK TELETEXT OFFSET
LEVEL Adjustment
BOARD REC/PB (F4)
TP VIDEO OUT 1
ADJ. VR701 (TXT OFST)[B-2]
TAPE 525(NTSC): VFM3380KM
Alignment Tape (Color bar 0:00-4:00)
INPUT -----
MODE Playback
M. EQ Analog WFM or Oscilloscope
SPEC. Average 5mV± 5mV
1. Adjust VR701 so that the TELETEXT offset level
is in the specification as shown in figure.
VIDEO OUT 1
10mV
5mV
0mV
(Pedestal)
OFFSET LEVEL
Setting
50M
AUTO
AUTO
THRU
EE
INT REGEN
ON
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6-3. V-BLK TELETEXT LEVEL
Adjustment
BOARD REC/PB (F4)
TP VIDEO OUT 1
ADJ. VR700 (TXT LEVEL)[B-2]
TAPE 525(NTSC): VFM3380KM
Alignment Tape (Color bar 0:00-4:00)
INPUT -----
MODE Playback
M. EQ Analog WFM or Oscilloscope
SPEC.
1. Adjust VR700 so that the TELETEXT level is in
the specification as shown in figure.
VIDEO OUT 1
445mV
450mV
445mV
440mV
ELE-55
Average 445mV± 5mV
(Pedestal-maximum portion of teletext)
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