Yd Out Level Adjustment - Sony CCD-TRV32 Service Manual

3-8.

YD OUT LEVEL ADJUSTMENT

Purpose : Minimizes the residual chroma component of
Y comb filter output signal.
Adjustment error : Chroma flicker at video out (pin jack) of VTR
overall characteristics. Color variations also
significant.
Mode Playback
Signal Alignment tape : Normal mode
WR5-5CSP (PAL)
WR5-5NSP (NTSC)
IC201 pin @¢ or CN102 pin 5
Measurement Point
Measuring Instrument Oscilloscope
Adjustment Page F
Adjustment Address 3C
A=0.50 ± 0.01Vp-p
Specification Value
Note : Minimize the residual chroma to the smallest amplitude
Adjustment procedure:
Order Page Address
1 6 00
2 F 3C
3
4 6 00
PAL MODEL
H
Related Adjustments:
"Emphasis input level adjustment", "PB Y level adjustment", "Y
FM carrier frequency adjustment"
Data
01 After setting the data, press the PAUSE button.
(Preparation)
Change data using PLAY and STOP buttons so that the
Y signal level (A) satisfies the specification.
Press the PAUSE button.
00 After setting the data, press the PAUSE button. (End)
White (100%)
A
Fig. 6-3-2
Procedure
NTSC MODEL
H
6-66
White (100%)
A