Camera System Adjustments; Mhz Origin Oscillation Adjustment (Vc-245 Board); Zoom Key Center Adjustment - Sony DCR-PC4E Service Manual

1-3.

CAMERA SYSTEM ADJUSTMENTS

Before perform the camera system adjustments, check that the
specified values of "VIDEO SYSTEM ADJUSTMENT" are
satisfied.
Note: NTSC model: DCR-PC5
PAL model: DCR-PC4E/PC5E
1. 36MHz Origin Oscillation Adjustment
(VC-245 board)
Set the frequency of the clock for synchronization.
If deviated, the synchronization will be disrupted and the color will
become inconsistent.
Subject Not required
Measurement Point Pin qs of IC702
Measuring Instrument Frequency counter
Adjustment Page F
Adjustment Address 12
Specified Value Pin qs of IC702:
Adjusting method:
Order Page Address Data
1 0 01 01
2 F 12
3 F 12
4 0 01 00
24
25
36
37
IC702
VC-245 board (SIDE B)
Fig. 5-1-6.
f=18000000 ± 90Hz
Procedure
Set the data.
Change the data and set the
frequency (f) to the specified
value.
Press PAUSE button.
Set the data.
13
12
1
48

2. Zoom Key Center Adjustment

Set the A/D value center of the microprocessor to the center voltage
of the zoom key.
If deviated, the zoom lens operates of itself ,even if the zoom key is
the center position.
Subject
Measurement Point
Measuring Instrument
Adjustment Page
Adjustment Address
Note: Don't touch the zoom lever during adjustment.
Adjusting method:
Order Page Address Data
1 0 01
2 6 50
3 F 13
4 0 01
5-16
Not required
Display data of page: 6, address: 50
Adjustment remote commander
F
13
Procedure
01 Set the data.
Read the data, and this data is
named D .
50
D Set the data, and press PAUSE
50
button.
00 Set the data.