Read Sony DSC-P52 (serv.man4) Service Manual online
6-13
DSC-P52
1-3.
VIDEO SYSTEM ADJUSTMENTS
1. Video Output Level Adjustment (SY-91 board)
Adjust the sync level of the composite video signal output.
Mode
PLAY (
)
Signal
Arbitrary
Measurement Point
Video terminal of AV OUT jack
(75
(75
Ω
terminated)
Measuring Instrument
Oscilloscope
Adjustment Page
4F
Adjustment Address
A0
Specified Value
Sync level:
A=286
±
5mV (NTSC mode)
A=300
±
5mV (PAL mode)
Burst level:
B=286
±
30mV (NTSC mode)
B=300
±
30mV (PAL mode)
SETUP setting:
VIDEO OUT (SETUP 2) ............................ NTSC (NTSC mode)
VIDEO OUT (SETUP 2) ............................ NTSC (NTSC mode)
.................................. PAL (PAL mode)
Adjusting method:
Order Page Address Data
Procedure
1
00
01
01
Set the data.
2
60
C1
Read the data, and check it is “01”.
3
4F
02
03
Write the data.
4
40
F1
04
Write the data.
5
4F
A0
Change the data and set the sync
level (A) to the specified value.
level (A) to the specified value.
6
4F
A0
Write the data.
7
Check that the burst level (B)
satisfies the specified value.
satisfies the specified value.
8
4F
02
00
Write the data.
9
40
F1
00
Write the data.
10
00
01
00
Set the data.
B
H
A
Fig.6-1-9.
COVER
COVER
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