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Video System Adjustments; Video Sync Level Adjustment; (Control Switch Block (Fk) ); Video Burst Level Adjustment - Sony DSC-F505 Service Manual

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1-3.

VIDEO SYSTEM ADJUSTMENTS

1. Video Sync Level Adjustment

(Control Switch Block (FK) )

Adjust the sync level of the composite video signal output.
Mode
PLAY
Signal
Arbitrary
Measurement Point
Video terminal of AV OUT jack
(75Ω terminated)
Measuring Instrument
Oscilloscope
Adjustment Page
F
Adjustment Address
65
Specified Value
A = 290 ± 5mV (NTSC)
A = 305 ± 5mV (PAL)
Adjusting method:
1)
Select page: 0, address: 01, and set data: 01.
2)
Select page: 5, address: F1, and set data: 04.
3)
Select page: F, address: 65, change the data and set the sync
level (A) to the specified value.
4)
Select page: 5, address: F1, and set data: 00.
5)
Select page: 0, address: 01, and set data: 00.
H
Fig.5-1-10.

2. Video Burst Level Adjustment

(Control Switch Block (FK) )
Adjust the burst level of the composite video signal output.
Mode
Signal
Measurement Point
Measuring Instrument
Adjustment Page
Adjustment Address
Specified Value
Adjusting method:
1)
Select page: 0, address: 01, and set data: 01.
2)
Select page: 5, address: F1, and set data: 04.
3)
Select page: F, address: 66, change the data and set the burst
level (A) to the specified value.
4)
Select page: 5, address: F1, and set data: 00.
5)
Select page: 0, address: 01, and set data: 00.
A

3. Video Y Level Check

(Control Switch Block (FK) )
Confirm the Y level of the composite video signal output.
Mode
Signal
Measurement Point
Measuring Instrument
Specified Value
Adjusting method:
1)
Select page: 5, address: F1, and set data: 04.
2)
Check that the white (100 IRE) level (A) satisfies the specified value.
3)
Select page: 5, address: F1, and set data: 00.
5-21
PLAY
Arbitrary
Video terminal of AV OUT jack
(75Ω terminated)
Oscilloscope
F
66
A = 286 ± 5mV (NTSC)
A = 300 ± 5mV (PAL)
H
Fig.5-1-11.
PLAY
Arbitrary
Video terminal of AV OUT jack
(75Ω terminated)
Oscilloscope
A = 710 ± 20mV (NTSC)
A = 695 ± 20mV (PAL)
White (100 IRE)
H
Fig.5-1-12.
A
A

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