Ir Transmitter Adjustments (Ccd-Trv35/Trv65/Trv65Pk/Trv85/ Trv93/Trv615/Trv815); Ir Video Carrier Frequency Adjustment (Vc-195 Board); Ir Video Deviation Adjustment (Vc-195 Board) - Sony CCD-TRV15 Service Manual

3-5. IR TRANSMITTER ADJUSTMENTS
(CCD-TRV35/ TRV65/ TRV65PK/ TRV85/ TRV93/
TRV615/ TRV815)
Adjust using a IR receiver jig (J-6082-383-A).
Switch setting:
LASER LINK .................... (Red LED is lit)

1. IR Video Carrier Frequency Adjustment (VC-195 board)

Mode Camera standby
Subject Arbitrary
Pin 5 of CN003 of IR receiver jig (RF)
Measurement Point
( Or Pin !§ of IC751 of VC-195 board)
Measuring Instrument Frequency counter
Adjustment Page F
Adjustment Address 68
Specified Value f = 11.85±0.05MHz
Connection of Equipment
Connect the measuring device as shown in the following figure,
and adjust.
Main unit IR receiver jig
Fig. 5-3-18.
Adjusting method:
1) Select page: 0, address: 01, and set data: 01.
2) Select page: 3, address: 01, set data: 37, and press the PAUSE
button of the adjusting remote commander.
3) Select page: F, address: 68, change the data, and set the video
carrier frequency (f) to the specified value.
4) Press the PAUSE button of the adjusting remote commander.
5) Select page: 3, address: 01, set data: 00, and press the PAUSE
button of the adjusting remote commander.
6) Select page: 0, address: 01, and set data: 00.
Frequency counter
Pin 5
of CN003

2. IR Video Deviation Adjustment (VC-195 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: 3, address: 01, set data: 39, and press the PAUSE
button of the adjusting remote commander.
3) Select page: F, address: 66, and change the data, set the video
signal amplitude (A) to the specified value.
4) Press the PAUSE button of the adjusting remote commander.
5) Select page: 3, address: 01, set data: 00, and press the PAUSE
button of the adjusting remote commander.
6) Select page: 0, address: 01, and set data: 00.
5-55
Camera standby
Arbitrary
VIDEO OUT terminal of IR receiver jig
(Terminated at 75Ω)
Oscilloscope
F
66
A = 0.87±0.04V
Oscilloscope
75 Ω
VIDEO
OUT
75 Ω (1-247-804-11)
Fig. 5-3-19.
H
Fig. 5-3-20.
A