3-6. IR TRANSMITTER ADJUSTMENTS2. IR Video Deviation Adjustment (CB-61 board)
ModePlayback
Adjust using a IR receiver jig (J-6082-383-A).
SignalAlignment tape:
For audio operation check
Switch setting:(XH5-3 (NTSC))
LASER LINK ................................................ ON (Red LED is lit)(XH5-3P (PAL))
1. IR Video Carrier Frequency AdjustmentMeasurement PointVIDEO OUT terminal of IR receiver
(CB-61 board)jig (Terminated at 75 W )
Measuring Instrument Oscilloscope
ModeVTR stop
SignalArbitraryAdjustment PageD
Adjustment Address91
Measurement Point5Pin of CN003 of IR receiver jig
(RF) (Or Pin !¤ of IC8401)Specified ValueA = 1.00 ? 0.05 V
Measuring Instrument Frequency counter
Connection of Equipment:
Adjustment PageDConnect the measuring device as shown in the following figure,
Adjustment Address90
Specified Valuef = 11.85 ? 0.05 MHzand adjust.
Oscilloscope
Connection of EquipmentMain unitIR receiver jig75 1
Connect the measuring device as shown in the following figure,
and adjust.VIDEO
OUT
Main unitIR receiver jig75 1 (1-247-804-11)
CN003Frequency counter
pin 5Fig. 5-3-21
Adjusting method:
1) Select page: 0, address: 01, and set data: 01.
Fig. 5-3-202) Select page: D, address: 91, and change the data, set the video
signal amplitude (A) to the specified value.
Adjusting method:3) Press the PAUSE button of the adjustment remote commander.
1) Select page: 0, address: 01, and set data: 01.4) Select page: 0, address: 01, and set data: 00.
2) Select page: 2, address: 12, set data: 10, and press the PAUSE
button of the adjustment remote commander.For NTSC modelWhite (100%)
3) Select page: D, address: 90, 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: 2, address: 12, set data: 00, and press the PAUSE
button of the adjustment remote commander.
6) Select page: 0, address: 01, and set data: 00.
A
H
For PAL model
White (100%)
A
H
Fig. 5-3-22
5-29 |
ACEC
