3-5. IR TRANSMITTER ADJUSTMENTS2. IR Video Deviation Adjustment (MR-44 board)
ModeVTR stop
Adjust using a IR receiver jig (J-6082-383-A).
SignalArbitrary
Measurement PointVIDEO OUT terminal of IR receiver jig
Switch setting:(Terminated at 75 W )
LASER LINK ................................... ON (Red LED is lit)
Measuring Instrument Oscilloscope
1. IR Video Carrier Frequency AdjustmentAdjustment PageC
(MR-44 board)
Adjustment Address29
ModeVTR stopSpecified ValueA = 1.00 ? 0.05 V
SignalArbitrary
Measurement PointPin 5 of CN003 of IR receiver jig (RF)Connection of Equipment:
(Or Pin qh of IC7501 of MR-44 board)Connect the measuring device as shown in the following figure,
Measuring Instrument Frequency counterand adjust.
Adjustment PageCOscilloscope
Adjustment Address28
Specified Valuef = 11.85 ? 0.05 MHzMain unitIR receiver jig75 1
VIDEO
OUT
Connection of Equipment
Connect the measuring device as shown in the following figure,75 1 (1-247-804-11)
and adjust.
Fig. 5-3-12.
Main unitIR receiver jig
CN003Frequency counter
pin 5Adjusting 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.
Fig. 5-3-11.3) 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.
Adjusting method:5) Select page: 3, address: 0C, set data: 00, and press the PAUSE
1) Select page: 0, address: 01, and set data: 01.button of the adjustment remote commander.
2) Select page: 3, address: 0C, set data: 08, and pr6) Select page: 0, address: 01, and set data: 00.ess 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.A
6) Select page: 0, address: 01, and set data: 00.
H
Fig. 5-3-13.
5-55 |
ACEC
