E2Prom Replacement; Adjustment Items List - Mitsubishi Electric WS-48511 Service Manual

Projection television v21, v21+, v21++ chassis
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MODELS: WS-48511 / WS-55511 / WS-55711 / WS-65511 / WS-65611 / WS-65711 / WS-65712 / WS-73711 / WS-B55

E2PROM Replacement

IC7A01 stores some adjustment data. After replacing the IC, set the data to the values given in the following
tables. If good performance is not obtained, perform the Adjustments Procedures given in the Notes column.
List of Adjustment Items.
Function Display
NO.
Abbrev.
1
SCT
2
SBRT
3
SCOL
4
STIN
5
SCON
6
RDRH
7
GDR
8
BDRH
9
CTRH
10
CTGH
11
CTBH
12
RDRL
13
BDRL
14
CTRL
15
CTGL
16
CTBL
17
SCTL
18
SBRL
19
SCLL
20
SCNL
23
COL
56
VM
60
CRO1
61
CBO1
64
R-YR
65
R-YB
66
G-YR
67
G-YB
69
RON
70
GON
71
BON
JNGL Function (Jungle)
Display
No.
Abbrev.
1
HWID
Horizontal Width
2
HKEY
Horizontal Keystone
3
EWPT EW-PCC on top
4
EWCT Corner Pin (top)
5
EWPB EW-PCC on bottom
6
EWCB Corner Pin (bottom)
7
VHGT
Vertical Height
8
VLIN
Vertical Linearity
9
VSCN
Vertical S-Correction
14
H-POS Horizontal Position
20
V-POS Vertical Position
Adjustment
Description
Picture Gain (H-Temp)
Sub Brightness (H-Temp)
Sub Color (H-Temp)
Sub Tint
Sub Contrast (H-Temp)
R-Drive (high)
G-Drive
B-Drive (high)
R-Cutoff (high)
G-Cutoff (high)
B-Cutoff (high)
R-Drive (low)
B-Drive (low)
R-Cutoff (low)
G-Cutoff (low)
B-Cutoff (low)
Picture Gain (L-Temp)
Sub Brightness (L-Temp)
Sub Color (L-Temp)
Color Gain (L-Temp)
Color Gain
VM level
CR Offset 1
CB Offset 1
R-Y gain of R-Y
R-Y gain of B-Y
G-Y gain of R-Y
G-Y gain of b-y
Red On
Green On
Blue ON
Adjustment
Data
Description
Range HD
0~63
0~63
0~63
0~63
0~63
0~63
0~63
0~15
0~15
0~63
0~63
Data
Initial Data
Range
480i
480p 1080i VGA
0~63
42
42
0~63
26
26
0~15
7
5
0~15
6
10
0~15
2
3
0~63
30
30
0~63
35
35
0~63
40
56
0~63
25
25
0~63
55
55
0~63
40
20
0~63
35
35
0~63
40
40
0~63
25
25
0~63
55
55
0~63
15
15
0~63
42
42
0~63
26
26
0~15
2
2
0~15
0
0
0~63
31
31
0~3
2
2
0~15
10
7
0~15
10
7
0~15
2
7
0~15
10
2
0~15
10
8
0~15
6
11
0~1
1
1
0~1
1
1
0~1
1
1
48" Data
55" Data
65" Data
SD
HD
SD
HD
20
16
38
33
35
38
43
38
43
33
23
22
23
22
25
32
34
32
34
37
26
31
26
31
27
29
35
29
35
35
23
30
23
27
25
9
9
9
9
9
0
0
0
0
0
30
37
30
37
30
31
31
31
31
31
Page 34
Notes
42
42
Sub Contrast
26
26
Black Level
3
3
Preset
15
7
"
3
3
"
30
30
White Balance
35
35
Preset
56
56
White Balance
25
25
"
55
55
Preset
20
20
White Balance
35
35
"
40
40
"
25
25
"
55
55
"
15
15
"
42
42
Preset
26
26
User
2
2
User
0
0
"
31
31
2
0
"
7
7
Cb Cr Offset
7
7
Cb Cr Offset
7
7
Preset
2
2
"
8
8
"
11
11
"
1
1
"
1
1
"
1
1
"
IC4A01
73" Data
Notes
SD
HD
SD
31
36
33
Width
31
31
33
Preset
22
22
24
"
34
31
32
31
27
32
"
35
31
34
27
32
34
Height
9
9
9
Preset
0
0
0
"
37
30
37
"
31
31
31
"

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