Sanyo CP21SA1 Service Manual page 9

Service Adjustments with Replacing Memory IC(IC802)
[2] Required Service Adjustments
Readjust the following service adjustments.
Adjustments
RF AGC
Horizontal centre
Vertical size
Vertical-S correction
Vertical linearity
Gray scale
Further adjustment please refer to page 12 and 13.
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
DATA
INITIAL
NO.
ITEM
RANGE
DATA
01 RF AGC 00~63 30
02
H-PHA 00~31 5
03
V-POS 00~63 40
04 V-SIZ 69
00~127
05
V-SCO 00~31 15
06
V-LIN 00~31 19
07 H-P60
-80~+70 +5
08
V-S60 -32~+31 0
09
00~255 29
OSDHP
10 OSDC 45
00~127
11
V-SCP 00~07 7
12
H-SCP 00~07 7
13 SBIAS
00~127 105
14
RBIAS 00~255 0
15
GBIAS 00~255 0
16 BBIAS 0
00~255
17
RDRIV 00~127 64
18
GDRIV 00~15 8
64
19 BDRIV
00~127
20
1-LINE APPEAR
21 DRV
22 10
B-YD 00~15
23
10
R-YD 00~15
0
24 -08~+07
B-YDN
0
R-YDN
25 -08~+07
26 SBDC -08~+07
-8
SRDC
27 -08~+07 -5
28 0
G-YA 0,1
29
RBGB 00~15 8
30 00~15
RBAG 8
0,1
31 G-YAN 0
32 RBGBN -08~+07 0
RBAGN -08~+07
33 0
0
34 COGV 00~03
35 BLKS 00~03 3
36 00~03 3
BLKG
37 0,1 0
BRTA
38 0
BRST 0,1
39 BRTH 00~07 0
40 WPL 00~03 2
41 YGAM 0
00~03
42
PORW 0,1 0
43
PORS
00~03 2
44
RFCO 00~03 0
Service Mode No. & Item
Item 01, RF AGC
Item 02, H-PHA
Item 04, V-SIZ
Item 05, V-SCO
Item 06, V-LIN
Item 14-17, 19-21
DESCRIPTION
RF AGC Adj.
H-Phase (H-Centering) Adj. (50Hz)
V-Position (V-Centering) Adj. (50Hz) Fixed.
V-Size Adj. (50Hz)
V-S Correction (50Hz)
V-Linearity Adj. (50Hz)
H-Centering Adj. (60Hz)
V-Size Adj. (60Hz)
OSD H-Position Adj.
OSD Contrast Adj.
Correction of the V-size accompanying brightness change.
Correction of the H-size accompanying brightness change.
(Do not change)
Sub Bias Adj.
Red Bias Adj.
Green Bias Adj.
Blue Bias Adj.
Red Drive Adj.
Green Drive Adj.
Blue Drive Adj.
White Balance Adj.
B-Y DC level Adj.. Colour compensation (PAL)
R-Y DC level Adj.. Colour compensation (PAL)
NTSC B-Y DC level Adj. (Difference value over PAL.)
NTSC R-Y DC level Adj. (Difference value over PAL.)
SECAM B-Y DC level Adj. (Difference value over PAL.)
SECAM R-Y DC level Adj. (Difference value over PAL.)
G-Y angle Adj. (The reproducibility of a colour is changed.)
R-Y, B-Y Gain Blance Adj. (Do not change.)
R-Y, B-Y Angle Adj. (Do not change.)
NTSC G-Y Angle Adj. (Difference value over PAL.)
NTSC R-Y, B-Y Gain Balance Adj. (Difference value over PAL.)
NTSC G-Y, B-Y Angle Adj. (Difference value over PAL)
Coring Adj.
Setting of Black stretch start.
Setting of Black stretch gain.
On and off of ABL.
Setting of ABL.
Setting of ABL.
White peak limitter.
Y Gamma setting.
Switching of Pre-shoot and Over shoot in AV mode.
Pre-shoot/Over shoot Adj. in AV mode.
RF Coring Gain Adj.
DATA
INITIAL
ITEM
NO.
RANGE
DATA
45
PORWN 0,1
46 PORSN
00~03
47
TINT -16~+15
48
TINT 443 -16~+15
49 SHRF
-32~+31
50
TEXTC -128~+127
51
VOLUM
00~255
52 DEEM
0,1
53
VIFSW 00~03
54
SIFSW
00~03
55 V-LVL
00~07
56
FMLVL 00~31
57
IF-TE
0,1
58 IF-T1
0,1
59
IF-T2 0,1
00~255
60 IF-T3
61 H-FRQ 00~63
62
FBTS 0,1
63 00~07
COOP
HBLKL
64 00~07
65 HBLKR 00~07
AFCRF
66 0,1
67
VSURF 0,1
68
CDMRF 00~07
69 0,1
AFCAV
0,1
70 VSUAV
71 00~07
CDMAV
HLVDRF 0,1
72
73 HLVDAV 0,1
74 VCO-SW 0,1
75
VCO-ADJ 00~03
CROSS-BW 00~03
76
77
AVNCON 00~127
78 AVNBRI 00~127
POMT 00~255
79
80 CHMT 00~255
81 SYST 00~15
82 S-STE
0,1
VOLTBL 00~03
83
84 CHIP818 0,1
300 00~255
R00
R01
301 00~255
302 R02 00~255
-9-
DESCRIPTION
0 Switching of RF Pre-shoot and Over shoot.
0
RF Pre-shoot/Over shoot Adj.
0 RF Tint Adj.
-12 NTSC 4.43 Tint Adj.
0 RF Sharpness Adj.
0 OSD TEXT Contrast.
127 Volume Control Adj.
De emphasis TC.
0
0 VIF System Switch.
1 SIF System Switch.
4 Video Level Adj.
16
FM Level Adj.
0 IF Test.
1 IF Test-1.
1
IF Test-2
136
IF Test-3
34
Correction of Horizontal Frequency.
0
Switching of H-blanking and Flyback Pulse.
7
Setting of Colour Killer Level.
7
H-Blanking Control. (Left)
3
H-Blanking Control. (Right)
0 RF AFC Gain & Gate Adj.
0
RF V-Sync. Separation Adj.
0
RF V-Countdown Circuit Adj.
1 AV AFC Gain & Gate Adj.
0
AV V-Sync. Separation Adj.
0 AV V-Countdown Circuit Adj.
1 Incorrect operation prevention at the time of a special signal (RF mode)
1
Incorrecr operation prevention at the time of a special signal (AV mode)
0 C-VCO Adj. Switch.
3
C-VCO Adj.
0
Pattern Output.
64 Contrast Adj. of the blue back in AV mode.
64 Brightness Adj. of the blue back in AV mode.
25 Power Mute Time Adj.
Channel Change Mute time Agj.
10
5 Selection of the number of times of a Colour system judgment.
0 Stereo/Mono Option. Stereo=1, Mono=0
Selection of the change characteristic of volume.
2
Option of 818(1:TINT Control reversal)/
0
828(2:TINT through control) selection.
112
CPU Debug Date.
64
CPU Debug Date.
92 CPU Debug Date.