Service manual

5-56
3-5. IR TRANSMITTER ADJUSTMENTS
(CCD-TRV43/TRV46/TRV46PK)
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-215 board)
Mode Camera standby
Subject Arbitrary
Measurement Point Pin 5 of CN003 of IR receiver jig (RF)
( Or Pin !§ of IC751 of VC-215 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.
Fig. 5-3-17.
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.
2. IR Video Deviation Adjustment (VC-215 board)
Mode Camera standby
Subject Arbitrary
Measurement Point VIDEO OUT terminal of IR receiver jig
(Terminated at 75Ω)
Measuring Instrument Oscilloscope
Adjustment Page F
Adjustment Address 66
Specified Value A = 0.87±0.04V
Connection of Equipment
Connect the measuring device as shown in the following figure,
and adjust.
Fig. 5-3-18.
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.
Fig. 5-3-19.
Main unit IR receiver jig
Pin
5
of CN003
Frequency counter
Main unit
IR receiver jig
VIDEO
OUT
75
Ω
75 Ω (1-247-804-11)
Oscilloscope
A
H