(Ccd-Tr918E/Trv87E); Ir Video Carrier Frequency Adjustment; (Vc-234 Board); Ir Video Deviation Adjustment (Vc-234 Board) - Sony CCD-TR317E Service Manual

3-5. IR TRANSMITTER ADJUSTMENTS

(CCD-TR918E/TRV87E)

Adjust using a IR receiver jig (J-6082-383-A).
Note : If the distance between the IR receiver jig and the camcorder is
below 1m, cover the LASER LINK emitter with a ND filter. (For
example, when the distance is 30cm to 50cm, cover the LASER
LINK emitter with a ND filter 1.0.)
Switch setting:
LASER LINK ........................................ ON (Red LED is lit)

1. IR Video Carrier Frequency Adjustment

(VC-234 board)

Mode Camera standby
Subject Arbitrary
Measurement Point Pin 5 of CN003 of IR receiver jig (RF)
(Or Pin qh of IC751 of VC-234 board)
Measuring Instrument Frequency counter
Adjustment Page F
Adjustment Address 80
Specified Value f = 11.55 ± 0.05 MHz
Connection of Equipment
Connect the measuring device as shown in the following figure,
and adjust.
IR receiver jig
Main unit
Fig. 5-3-14.
Adjusting method:
1) Select page: 0, address: 01, and set data: 01.
2) Select page: 2, address: 01, set data: 37, and press the PAUSE
button of the adjustment remote commander.
3) Select page: F, address: 80, 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: 01, set data: 00, and press the PAUSE
button of the adjustment remote commander.
6) Select page: 0, address: 01, and set data: 00.
Frequency counter
Pin 5 of
CN003

2. IR Video Deviation Adjustment (VC-234 board)

Mode
Subject
Measurement Point
Measuring Instrument
Adjustment Page
Adjustment Address
Specified Value
Connection of Equipment
Connect the measuring device as shown in the following figure,
and adjust.
IR receiver jig
Main unit
Adjusting method:
1) Select page: 0, address: 01, and set data: 01.
2) Select page: 2, address: 01, set data: 39, and press the PAUSE
button of the adjustment remote commander.
3) Select page: F, address: 7E, 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: 2, address: 01, set data: 00, and press the PAUSE
button of the adjustment remote commander.
6) Select page: 0, address: 01, and set data: 00.
5-46
Camera standby
Arbitrary
VIDEO OUT terminal of IR receiver jig
(Terminated at 75Ω)
Oscilloscope
F
7E
A = 0.87 ± 0.04 V
Oscilloscope
75 Ω
VIDEO
OUT
75 Ω (1-247-804-11)
Fig. 5-3-15.
H
Fig. 5-3-16.
A