Evr Initial Data Input; Pco Adjustment (Vf-110 Board) - Sony CCD-TRV32 Service Manual

19-2.

EVR initial data input

Mode Stop
Signal Any video signal
Adjustment page F
Input procedure:
Order Page Address
1 6 00
2 CC
CD
CE
CF
D0
D1
F D2
D3
D4
D5
D6
D7
3 6 00
19-3.

PCO adjustment (VF-110 board)

Purpose : To make the TG frequency constant
(amplitude).
Adjustment error : VF picture will lose sync when error is large.
Mode VTR stop
Signal No signal
VF-110 board CN702 pin !º (PCO)
Measurement Point
Measuring Equipment Oscilloscope (DC range)
Adjustment Page F
Adjustment Address D2
A=1.80 ± 0.05V
Specification Value
Adjustment procedure:
Order Page Address
1 6 00
2
3 F D2
4
5 6 00
Data
01 Set the data.
A0
AE (75)
95 (50)
7A
6A
70
90 After setting the data, press the PAUSE button.
40
7A
7A
70
05
00 Set the data.
Data
01 Set the data. (Preparation)
Check the GND level on an oscilloscope in DC mode.
Change the data until the PCO voltage (A) becomes the specification value.
Press the PAUSE button.
00 Set the data. (End)
Procedure
Procedure
6-29
No mark : NTSC/PAL
( ) : PAL
PCO
A
GND level
(0Vdc)