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5-54
3. IR Audio Deviation Adjustment (VI-151 board)
Mode
VTR stop
Signal
Video : No signal
Audio : –400Hz, –7.5dBs, Audio left
and right terminal of AUDIO/VIDEO
jack
Measurement Point
AUDIO L terminal and AUDIO R
terminal of IR receiver jig
(Terminated at 47k
Ω
)
Measuring Instrument
Audio level meter
Adjustment Page
C
Adjustment Address
2A
Specified Value
Signal level: –7.5 ± 1.0 dBs
Level difference of L and R: Below
2dB
Connection of Equipment:
Connect the measuring device as shown in the following figure,
and adjust.
Fig. 5-3-12.
Adjusting method:
1)
Select page: 0, address: 01, and set data: 01.
2)
Connect the audio level meter to the AUDIO L terminal of the
IR receiver jig.
3)
Select page: C, address: 2A, change the data and set the 400Hz
audio signal level to the specified value.
4)
Press the PAUSE button of the adjustment remote commander.
5)
Connect the audio level meter to the AUDIO R terminal of the
IR receiver jig.
6)
Check that the 400Hz audio signal level is within the specified
value. If outside, repeat from step 2).
7)
Select page: 0, address: 01, and set data: 00.
Main unit
Audio oscillator
Audio Left
(White)
Video
(Yellow)
Audio Right
(Red)
Attenuator
AUDIO/
VIDEO
IR receiver jig
AUDIO OUT
L
R
Audio level meter
47k
Ω
600
Ω
600
Ω
: 270
Ω
(1-249-410-11) + 330
Ω
(1-249-411-11)
47k
Ω
(1-249-437-11)
Содержание DCRTRV900 - MiniDV Handycam Digital Video Camcorder
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Страница 64: ...DCR TRV890E TRV900 TRV900E SECTION 3 BLOCK DIAGRAMS 3 1 OVERALL BLOCK DIAGRAM 3 1 3 2 3 3 3 4 ...
Страница 65: ...DCR TRV890E TRV900 TRV900E 3 2 POWER BLOCK DIAGRAM 3 5 3 6 3 7 3 8E ...
Страница 67: ...DCR TRV890E TRV900 TRV900E FRAME SCHEMATIC DIAGRAM 2 4 5 4 6 4 7 4 8 FRAME SCHEMATIC DIAGRAM 2 ...