-11-
Service Adjustments with Replacing Memory IC (IC802)
[2] Required Service Adjustments
Readjust the following service adjustments.
Adjustments Service Mode No. & Item
RF AGC Item 01, RF AGC
Horizontal centre Item 02, H-PHA
Vertical size Item 04, V-SIZ
Vertical-S correction Item 05, V-SCO
Vertical linearity Item 06, V-LIN
Gray scale Item 14-17, 19-21
Further adjustment please refer to page 14 and 15.
Following table shows the initial values which have been stored in the CPU ROM, and items for the service adjustments.
Service mode adjustments table in CPU ROM
NO.
ITEM
DATA
RANGE
INITIAL
DATA
DESCRIPTION
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
RF AGC Adj.RF AGC
00~63
22
H-Phase (H-Centering) Adj. (50Hz)H-PHA
00~31
5
V-Position (V-Centering) Adj. (50Hz) Fixed.V-POS 00~63
40
V-Size Adj. (50Hz)V-SIZ
00~127
74
V-S Correction (50Hz). Strech or shrink at center of screen
V-SCO
00~31
16
V-Linearity Adj. (50Hz)
V-LIN 00~31
21
H-Centering Adj. (60Hz) H-P60
-16~+15
+3
V-Size Adj. (60Hz)
V-S60
-64~+32
-2
OSD H-Position Adj.
OSDHP
00~255
26
OSD Contrast Adj.OSDC
00~127
40
Correction of the V-size accompanying brightness change.
V-SCP
00~07
7
Correction of the H-size accompanying brightness change.H-SCP
00~07
7
Sub Bias Adj.SBIAS
00~127
105
Red Bias Adj.RBIAS
00~255
0
Green Bias Adj.GBIAS
00~255
0
Blue Bias Adj.BBIAS
00~255
0
Red Drive Adj.RDRIV
00~127
64
Green Drive Adj.GDRIV
00~15
8
Blue Drive Adj.BDRIV
00~127
64
1-LINE APPEAR
21
DRV
White Balance Adj.
22
B-YD
00~15
8
B-Y DC level Adj.. Colour compensation (PAL)
23
R-YD 00~15
8
R-Y DC level Adj.. Colour compensation (PAL)
24
B-YDN
-16~+15
0
NTSC B-Y DC level Adj. (Difference value from PAL.)
25
R-YDN
-16~+15
0
NTSC R-Y DC level Adj. (Difference value from PAL.)
26
SBDC
-16~+15
- 8
SECAM B-Y DC level Adj. (Difference value from PAL.)
27
SRDC
-16~+15
- 5
SECAM R-Y DC level Adj. (Difference value from PAL.)
28
G-YA
0,1
0
G-Y angle Adj. (Colour Phase G-Y Demodulation 0=240 degree, 1=253 degree)
29
RBGB
00~15 8
R-Y, B-Y Gain Blance Adj. (Do not change.)
30
RBAG
00~15
8
R-Y, B-Y Angle Adj. (Do not change.)
31
G-YAN
0,1
0
NTSC G-Y Angle Adj. (Difference value from PAL.)
32
RBGBN
-16~+15
0
NTSC R-Y, B-Y Gain Balance Adj. (Difference value from PAL.)
33 RBAGN
-16~+15
0
NTSC G-Y, B-Y Angle Adj. (Difference value from PAL)
34
COGV
00~03
0
Coring Adj. (Base colour)
35 BLKS
00~03 3
Black stretch effective point selection, 0=OFF, 1-3=FREE
36
BLKG
00~03
3
Setting of Black stretch gain. 0=OFF, 1-3=FREE
37
BRTA
0,1
0 On and off of ABL. 0=ON, 1=OFF
38
BRST
0,1
0
ABL Effect Limit SW. 0=With Limitter, 1=Without Limitter
39
BRTH
00~07
0
ABL Threshold Pint.
(Do not change)
40
41
42
43
44
White peak limitter. 0=OFF, 1-3=With LimitterWPL
00~03
2
Y Gamma setting. 0=OFF, 3=Max (Do not change)YGAM
00~03
0
Switching of Pre-shoot and Over shoot in AV mode. 0=Pre, 1=Over
PORW
0,1
0
Pre-shoot/Over shoot Adj. in AV mode.PORS
00~03
2
RF Coring Gain Adj.
RFCO
00~03
0
OBJECT
IC201
IC201
IC201
IC201
IC201
IC201
IC201
IC201
IC201
IC201
IC201
IC201
IC201
IC201
IC201
IC201
IC201
IC201
IC201
IC201
IC201
IC201
IC201
IC201
IC201
IC201
IC201
IC201
IC201
IC201
IC201
IC201
IC201
IC201
IC201
IC201
IC201
IC201
IC201
IC201
IC201
IC801
To Next Page
Loading...
