DCR-PC10, DCR-PC10E - Sony Movie Service Manual (repair manual). Page 119

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5-47
3-5.
VIDEO SYSTEM ADJUSTMENTS
3-5-1.
RF Block Adjustment (MR-39 Board)
1. Record Current Adjustment/
Frequency Response Check
Mode
VTR stop
Measurement Point
For ODD channel adjustment :
CH-1 : CN2708 pin 5 (CL2719)
CH-2 : CN2708 pin 6 (CL2718)
For EVEN channel adjustment :
CH-1 : CN2708 pin 3 (CL2721)
CH-2 : CN2708 pin 2 (CL2722)
Measuring Instrument
Oscilloscope
ADD mode
CH-2 INV mode
Adjustment Page
C
Adjustment Address
3E, 3F
Specification Value
A = 3.1 ± 0.1Vp-p
Connection :
Remove CN2708 and perform the following connection.
1)
For ODD channel adjustment, connect a resistor of 180
between CN2708 pin 5  (CL2719) and CN2708 pin 6
(CL2718).
2)
For EVEN channel adjustment, connect a resistor of 180
between CN2708 pin 3  (CL2721) and CN2708 pin 2
(CL2722).
180
 resistor (1-249-408-11)
Adjustment procedure:
Processing after Adjustments:
Order
Page
Address
Data
Procedure
1
Calibrate the VERT gain of CH-1 and CH-2 of an oscilloscope for unity gain.
Set the scope to ADD mode.  Set CH-2 to INV mode.
2
0
01
01
Set the data. (Preparation)
3
3
01
0C
After setting the data, press the PAUSE button.
4
3
34
01
After setting the data, press the PAUSE button.
5
C
3F
Change the following data until the signal voltage (A) satisfies the specification value
3E
and press the PAUSE button.
For ODD channel : Page C, Address : 3F
For EVEN channel : Page C, Address : 3E .
Order
Page
Address
Data
Procedure
1
3
34
04
After setting the data, press the PAUSE button.
2
3
01
00
After setting the data, press the PAUSE button.
3
0
01
00
Set the data. (End)
Fig. 5-3-7
0.1 
µ
sec
A
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