Ir Video Carrier Frequency Adjustment (Vc-260 Board); Ir Video Deviation Check (Vc-260 Board) - Sony DCR-TRV15E Service Manual

3-5. IR TRANSMITTER ADJUSTMENTS
Adjust using the IR receiver jig (J-6082-383-A).
Switch setting:
SUPER LASER LINK ........................... ON (Red LED is lit)
1. IR Video Carrier Frequency Adjustment
(VC-260 board)
Mode VTR stop
Signal Arbitrary
Measurement Point Pin 5 of CN003 of IR receiver jig (RF)
(Or Pin qh of IC901 of VC-260 board)
Measuring Instrument Frequency counter
Adjustment Page F
Adjustment Address 6E
Specified Value f = 11.50 ± 0.05 MHz
Connection of Equipment:
Connect the measuring device as shown in the following figure,
and adjust.
36 25
37 24
48 13
1 12
IC901
Fig. 5-3-10.
IR receiver jig
Main unit
Fig. 5-3-11.
Adjusting method:
Order Page Address Data
1 0 01 01
2 3 0C 08
3 F 6E
4 F 6E
5 3 0C 00
6 0 01 00
VC-260 board
Frequency counter
CN003
pin 5
Procedure
Set the data.
Set the data, and press PAUSE
button.
Change the data, and set the video
carrier frequency (f) to the specified
value.
Press PAUSE button.
Set the data, and press PAUSE
button.
Set the data.

2. IR Video Deviation Check (VC-260 board)

Mode
Signal
Measurement Point
Measuring Instrument
Specified Value
Connection of Equipment:
Connect the measuring device as shown in the following figure,
and adjust.
Main unit IR receiver jig
Adjusting method:
Order Page Address Data
1 3 0C
2
3 3 0C
5-47
VTR stop
Arbitrary
VIDEO OUT terminal of IR receiver
jig (Terminated at 75Ω)
Oscilloscope
A = 1.00 ± 0.05 V
Oscilloscope
75 Ω
VIDEO
OUT
75 Ω (1-247-804-11)
Fig. 5-3-12.
Procedure
02 Set the data, and press PAUSE
button.
Check that the video signal
amplitude (A) satisfies the
specified value.
00 Set the data, and press PAUSE
button.
H
Fig. 5-3-13.
A