Sony CCD-M8, Руководство по обслуживанию

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1 - 1 8.
R B1 / R B2 GAI N ADJ U STM E NT
Equipment required: Oscilloscope
VC-5 Board
C H I TP804 ( RBo)
( a ) C H2 TP805 ( RB 1 )
C H I
( b) CH2
Mode - ADD. Polarity - INV
Object:
White Pattern ( see Fig. 1 -23)
Adjust Procedure:
TP804 ( RB11)
TP806 ( RB')
I ) Set the oscilloscope probe a t ( a). and by turning R822 on
MX-2 Board. adjust for straightly linear waveform ( see Fig.
1 -25).
2)
Next. set the oscilloscope probe at ( b). and by turning
RV824 on MX-2 Board. adjust for a straightly linear
waveform ( see Fig. 1 -25).
Fig. 1-25
1 - 1 9 .
SET- U P ADJ U STM ENT
Equipment required: Oscilloscope
VC-6 Board TP952
Object:
Totally Bl ack ( Lens covered with a black cap)
Adjusting Procedure:
By turning RV883 on E D- 1 1 Boa rd.
adjust the signal level at 65±5 mVp-p ( see Fig. 1 -26).
Fig. 1-26
Median
Black Level
Median
Pedestal
1 -20.
Y LEVE L ADJUSTMENT
Equipment required: Oscilloscope
VC-6 Board TP952
Object: Color Bar Chart ( i n Standard Pattern Fra me)
Adjusting Procedure: By w rn i ng RV88 1 on ED-I I Board.
adjust the signal level at
720�J8
m Vp-p (see Fig.
1 -2 7).
Fig. 1-27
1 -2 1 .
A P E RTU R E ADJ U STM ENT
Equipment required: Oscilloscope
ME- I Board TP7 1 I
Median
White Level
Median
Pedestal
Object: Color Bar Chart ( i n Standard Pattern Frame)
Adjusting Procedure:
1 ) Preset RV888 on ED- 1 1 Board at its mechanical center.
and RV889 at its extreme counterclockwise position ( see
Fig. 1 -28).
ED- 1 1
Board
Mechanical Extreme
Center
Counterclockwise
Position
Fig. 1-28
-20-