Sony DCR-TRV103 Service Manual page 155

3-5. IR TRANSMITTER ADJUSTMENTS
Adjust using a IR receiver jig (J-6082-383-A).
Switch setting:
LASER LINK ......................... ON (Red LED is lit)
1. IR Video Carrier Frequency Adjustment
(VC-213 board)
Mode VTR stop
Signal No signal
Pin 5 of CN003 of IR receiver jig (RF)
Measurement Point
(Or Pin !§ of IC644 of VC-213 board)
Measuring Instrument Frequency counter
Adjustment Page F
Adjustment Address 68
Specified Value f = 11.85 ± 0.05 MHz
Connection of Equipment
Connect the measuring device as shown in the following figure,
and adjust.
IR receiver jig
Main unit
Fig. 5-3-18.
Adjusting method:
1) Select page: 0, address: 01, and set data: 01.
2) Select page: 3, address: 0C, set data: 08, and press the PAUSE
button of the adjustment 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.
5) Select page: 3, address: 0C, set data: 00, and press the PAUSE
button.
6) Select page: 0, address: 01, and set data: 00.
Frequency counter
Pin 5 of
CN003
2. IR Video Deviation Adjustment (VC-213 board)
Mode
Signal
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: 0C, set data: 01, and press the PAUSE
button of the adjustment 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.
5) Select page: 3, address: 0C, set data: 00, and press the PAUSE
button.
6) Select page: 0, address: 01, and set data: 00.
White
A
5-66
VTR stop
No signal
VIDEO OUT terminal of IR receiver jig
(Terminated at 75Ω)
Oscilloscope
F
66
A = 0.82 ± 0.04 V
Oscilloscope
75 Ω
VIDEO
OUT
75 Ω (1-247-804-11)
Fig. 5-3-19.
H
Fig. 5-3-20.