DCR-TRV940, DCR-TRV940E, DCR-TRV950, DCR-TRV950E (serv.man4) - Sony Movie Service Manual (repair manual). Page 64

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Before perform the video system adjustments, check that the speci-
fied values of “66MHz/54MHz Origin Oscillation Adjustment” of
“1-3. CAMERA SYSTEM ADJUSTMENTS” is satisfied.
Check that the data of page: 0, address: 10 is “00”.
If not, select page: 0, address: 10, and set the data “00”.

Adjusting Procedure:
1. Chroma BPF f

0

 adjustment

2. S VIDEO OUT Y level adjustment
3. S VIDEO OUT chroma level adjustment
4. VIDEO OUT level check

Set the center frequency of IC7001 chroma band-pass filter.

Mode

CAMERA

Subject

All black
(Cover the lens with the lens cap)

Measurement Point

CH1: Chroma signal terminal of
S VIDEO jack (75 

Ω

 terminated)

CH2: Y signal terminal of
S VIDEO jack (75 

Ω

 terminated)

Measuring Instrument

Oscilloscope

Adjustment Page

C

Adjustment Address

28

Specified value

A = 100 mVp-p or less
B = 200 mVp-p or more

 Check that the data of page: 0, address: 10 is “00”.

Order Page Address Data

Procedure

1

0

01

01

2

Check the that the burst
signal (B) is output to the
chroma signal terminal.

3

3

0C

04

Press PAUSE button.

4

C

28

Change the data and for
minimum amplitude of the
burst signal level (A). (The
data should be “00” to “0F”)

5

C

28

Press PAUSE button.

6

3

0C

00

Press PAUSE button.

7

Check the burst signal (B) to
the specified value.

8

0

01

00

CH1

CH2

A

H

CH1

H

B