Sony DNW-A75 Maintenance Manual page 128

4-2. TAPE Maintenance Mode (M0)
4-2-5. AUDIO/VIDEO CHECK Mode (C2)
C21 : VIDEO TEST SG
AUDIO/VIDEO CHECK MODE
C21:VIDEO TEST SG
*
OFF
This menu selects the operation in the maintenance mode
of a video test signal generator incorporated into this unit.
OFF: The video test signal generator operation
stops.
Except OFF: A video test signal generator outputs the
selected signals (below).
100% color bars
75% reverse color bars
Bowtie
Multi-burst
5-step
Shallow ramp
50% flat
Black burst
Pathological check code
NTC7 (NTSC) 7 Only for 525/60 system
Line330 (625) 7 Only for 625/50 system
Setting of video test signal generator
To set the video test signal generator, turn the search dial
while pressing the JOG button and display the desired
setting.
This setting is valid until the maintenance mode is termi-
nated. However, C21 : VIDEO TEST SG setting is reset to
OFF when C22 : MULTI LOOP (10TIMES) setting is
changed.
m
. This menu is set to OFF when the maintenance mode is
activated.
. The output signal of a test signal generator can also be
recorded on the tape. In this case, press the SET button
to display the white square in the upper-right position of
the superimposed display, before recording.
4-38
C22 : MULTI LOOP (10TIMES)
C22:MULTI LOOP(10TIMES)
This menu selects the multi-loop function enabled or
disabled in the maintenance mode, and additionally selects
a video test signal when the multi-loop function is enabled.
The video test signal that can be selected is output from an
internal video test signal generator. The video test signal is
the same in type as one described in C21 : VIDEO TEST
SG menu.
75% color bars
OFF:
Pulse and bar
H sweep Except OFF: The selected signal is output from a video
Ramp
Red signal
100% flat
Multi-loop function setting
To set the multi-loop function, turn the search dial while
pressing the JOG button and display the desired setting.
This setting is valid until the maintenance mode is termi-
nated. However, C22 : MULTI LOOP (10TIMES) setting
is reset to OFF when C21 : VIDEO TEST SG setting is
changed.
m
. This menu is set to OFF when the maintenance mode is
. The output signal during multi-loop operation can also
AUDIO/VIDEO CHECK MODE
*
OFF
Normal state (in which no multi-loop
operation is performed)
test signal generator for multi-loop opera-
tion.
activated.
be recorded on the tape. In this case, press the SET
button to display the white square in the upper-right
position of the superimposed display, before recording.
DNW-A75/A75P