Sony DCRTRV900 - MiniDV Handycam Digital Video Camcorder, Руководство по обслуживанию

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5-53
3-6. IR TRANSMITTER ADJUSTMENTS
Adjust using a IR receiver jig (J-6082-383-A).
Switch setting:
LASER LINK ................................... ON (Red LED is lit)
1. IR Video Carrier Frequency Adjustment
(VI-151 board)
Mode VTR stop
Signal Arbitrary
Measurement Point Pin
5
of CN003 of IR receiver jig (RF)
(Or Pin
!§
of IC1403)
Measuring Instrument Frequency counter
Adjustment Page C
Adjustment Address 28
Specified Value f = 11.85 ± 0.05 MHz
Connection of Equipment
Connect the measuring device as shown in the following figure,
and adjust.
Fig. 5-3-9.
Adjusting method:
1)
Select page: 0, address: 01, and set data: 01.
2) Select page: 3, address: 0C, set data: 08, and press the PAUSE
button of the adjustment remote commander.
3) Select page: C, address: 28, change the data, and set the video
carrier frequency (f) to the specified value.
4) Press the PAUSE button of the adjustment remote commander.
5) Select page: 3, address: 0C, set data: 00, and press the PAUSE
button of the adjustment remote commander.
6) Select page: 0, address: 01, and set data: 00.
2. IR Video Deviation Adjustment (VI-151 board)
Mode VTR stop
Signal Arbitrary
Measurement Point VIDEO OUT terminal of IR receiver jig
(Terminated at 75
Ω
)
Measuring Instrument Oscilloscope
Adjustment Page C
Adjustment Address 29
Specified Value A = 1.00 ± 0.05 V
Connection of Equipment:
Connect the measuring device as shown in the following figure,
and adjust.
Fig. 5-3-10.
Adjusting method:
1)
Select page: 0, address: 01, and set data: 01.
2) Select page: 3, address: 0C, set data: 02, and press the PAUSE
button of the adjustment remote commander.
2) Select page: C, address: 29, and change the data, set the video
signal amplitude (A) to the specified value.
4) Press the PAUSE button of the adjustment remote commander.
5) Select page: 3, address: 0C, set data: 00, and press the PAUSE
button of the adjustment remote commander.
6) Select page: 0, address: 01, and set data: 00.
Main unit IR receiver jig
CN003
pin
5
Frequency counter
Main unit IR receiver jig
VIDEO
OUT
75
Ω
75
Ω
(1-247-804-11)
Oscilloscope
H
A
Fig. 5-3-11