Hitachi C1422R Manuel D'entretien page 23

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Service Parameters
The following values assume you are watching a tuned in picture, on RF. (On other sources, or with no
signal, some values may differ.)
Service parameters 00 to 1A apply to the control registers of I501 as shown in the following table.
No.
Value
14"
20"
00
02
02
01
D0
D0
02
1F
1F
03
20
1D
04-07
00
00
08
20
1F
09
10
0B
0A
44
4A
0B
2B
1B
0C
29
38
0D
29
38
0E
29
38
0F
1C
1C
10
5C
5C
11
9C
9C
12
1C
1C
13
13
13
14
0A
0A
15
50
50
16
19
19
17
20
20
18
81
81
19
08
08
1A
00
00
Table 4 Service Parameter Functions
Parameters above 1A are designated by two-letter codes (except text contrast on a teletext set). These
control configuration.
Text Mode
Ex
AV
It is advisable to make a note of the existing values prior to commencing servicing. (See adjustments
section).
Function
21"
02
System control
D0
System control
1F
Hue (SCART NTSC 4.43
playback only)
27
Horizontal shift
00
E-W control
1E
Vertical slope (linearity)
1A
Height
4A
S-correction
1B
Vertical shift
3D
White point - Red
3D
White point - Green
3D
White point - Blue
1C
Peaking (sharpness)
5C
Brightness
9C
Saturation
1C
Contrast
13
AGC take-over point
0A
Volume
50
IF PLL adjustment
19
Vertical zoom
20
Vertical scroll
81
Control 2
08
Control 3
00
Control 4
Text (OSD) contrast
Export (VHF/UHF) setting
AV socket configuration
Action
Do not adjust
Do not adjust
Use picture menu control instead
Adjust to centre picture horizontally
Not used on this chassis
Adjust for vertical linearity
Adjust for correct picture height
Adjust for best vertical S-correction
Adjust to centre picture vertically
See adjustments section
Use picture menu control instead
Use picture menu control instead
Use picture menu control instead
Use picture menu control instead
See adjustments section
Set to 50 hex.
Not used on this chassis
Not used on this chassis
Do not adjust
Do not adjust
Do not adjust
Set as preferred, see notes below
00 for UHF-only, 01 if multi-band tuner
00 single SCART, 01 single SCART plus
phono inputs
23

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