Ir Audio Deviation Adjustment (Mi-041 Board) - Sony HANDYCAM DCR-TRV130E Service Manual

Digital video camera recorder
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3. IR Audio Deviation Adjustment (MI-041 Board)

Mode
VTR stop
Signal
Video : Color bar, VIDEO IN jack of
Audio : 400Hz, –7.5dBs, AUDIO IN
Measurement Point
AUDIO L terminal and AUDIO R
terminal of IR receiver jig
(Terminated at 47k )
Measuring Instrument
Audio level meter
Adjustment Page
F
Adjustment Address
7F
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.
Pattern generator
VIDEO OUT
(75 )
AUDIO IN
R
L
Audio oscillator
600 : 270
Adjusting method:
Order Page Address Data
1
0
01
01
2
3
F
7F
4
F
7F
5
6
F
7F
7
0
01
00
DVMC-DA1
L and R jack of DVMC-DA1
Media converter
DVMC-DA1
DV
IN/OUT
VIDEO IN
DV
IN/OUT
Attenuator
600
(1-249-410-11) + 330
Procedure
Set the data.
Connect the audio level meter to
the AUDIO L terminal of the IR
receiver jig.
Change the data and set the
400Hz audio signal level to the
specified value.
Press PAUSE button.
Connect the audio level meter to
the AUDIO R terminal of the IR
receiver jig.
Check that the 400Hz audio
signal level is within the
specified value. If outside, repeat
from step 2.
Set the data.
Main unit
Audio Left
(White)
Audio Right
(Red)
(1-249-411-11)
47k
47k
Fig. 5-3-14.
5-48
IR receiver jig
AUDIO OUT
L
R
Audio level meter
(1-249-437-11)

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