DCR-TR8000E, DCR-TR8100E, DCR-TRV120, DCR-TRV120E, DCR-TRV120P, DCR-TRV125E - Sony Movie Service Manual (repair manual). Page 127

Mode

Playback

Signal

Hi8/standard 8 mm alignment tape :
For checking operation
   (WR5-8NSE(NTSC))
   (WR5-8CSE(PAL))
Monoscope section

Adjusting Element

RV903

Specified Value

10 ± 3%

Adjustment method:
1)

Adjust RV903 so that the vertical direction over scan becomes
10 ± 3% (Top and bottom totals).

Mode

Playback

Signal

Hi8/standard 8 mm alignment tape :
For checking operation
   (WR5-8NSE(NTSC))
   (WR5-8CSE(PAL))
Monoscope section

Adjusting Element

RV904

Adjustment method:
1)

Rotate RV904, and adjust so that the bright/dark sections of
gray scale are displayed correctly. (The bright section should
be unsatisfactory till the cross hatch appears vague in the
monoscope circle. The dark section should be unsatisfactory
till the darkest section of the gray scale cannot be differentiate.)

“1-4-5. Horizontal Amplitude Adjustment” and “1-4-6. Vertical
Amplitude Adjustment” should be both satisfy the specified values.
If not, perform the adjustments from the beginning again. In this
case, perform “1-4-7. Brightness Adjustment” again.
Moreover, check the focus, and if it found to be vague, perform “1-
4-3. Focus Adjustment” and “1-4-4. Aberration Adjustment”.

100%

16.5%

16.5%

5%

5%

RV903

C909

CN902

IC901

F.B.T

W901

RV904

SOL901