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ELECTRICAL ADJUSTMENT
INTRODUCTION
Note:
It is necessary to pre-heat the TV during 15 minutes, before its calibration.
1) Important recommendations
2) Definitions of the terms
3) Geometry of the Image
4) White Balance
5) Screen adjustment
6) AGC adjustment
How to select the FACTORY MODE
a) Short to ground pin 24 of IC701 (momentarily) on the MAIN PWB or use a remote control with
protocol RC5 and system 7.
a1) Remote control reconstruction method.
Connection SW between pin13 and 16 of the IC: Pressing the SW will display the test mode screen
on TV.
b) Select the adjustment options pressing the key CH
television front panel.
Note: All the adjustment options can be selected directly by the remote control numeric
keys.
c) Adjust the selected option pressing the key VOL
television front panel.
c1) VOL
- increases registers (MAX.).
c2)
VOL - decreases registers (MIN.).
d) To exit the FACTORY MODE, use the key OSD/OUT of the remote control.
All manuals and user guides at all-guides.com
Service key
or CH
of the remote control or of the
or
VOL of the remote control or of the
33
1.
Important recommendations
1.1
Before beginning the adjustments, the TV set should be a pre-heated during at least 15
minutes.
1.2
The positioning of the TV set should obey the magnetic parameters of South America that
it is -120 vertical mG. In the practice, this is gotten with a relative precision, positioning the
TV set with the face (screen) of the CRT pointing to the geographical East.
2.
Definitions of the terms
Description of service and factory registers
Register
Name
Range
Description
00
HSh
0...63
Horizontal Shift
01
HWi
0...63
Not used
02
HPW
0...63
Not used
03
HCP
0...63
Not used
04
HTC
0...63
Not used
05
VSl
0...63
Vertical Slope
06
VAm
0...63
Vertical Amplitude
07
VSc
0...63
S-Correction
08
VSh
0...63
Vertical Shift
09
WPR
0...63
White point R.
10
WPG
0...63
White point G.
11
WPB
0...63
White point B.
12
AGC
0...63
AGC Take Over
13
PLL
0...127
IF-PLL adjustment
14
VZo
0...63
Not used
15
VSR
0...63
Not used
16
CT2
0...255
See description below
17
CT3
0...255
See description below
18
CT4
0...255
See description below
19
CT5
0...255
See description below
20
Bit
0...255
See description below
21
OP1
0...255
See description below
22
OP2
0...255
See description below
23
OP3
0...255
See description below
24
OP4
0...255
See description below
25
OP5
0...255
See description below
26
LA
0...15
Input level adjustment
27
ALS
0...31
Alignment for spectral
28
ALW
0...31
Alignment for wideband
29
STT
0...03
Stereo noise threshold
30
SPR
0...00
SAP noise threshold
31
BRI
0...99
Default Brightness
32
CON
0...99
Default Contrast
33
COR
0...99
Default Color
34
NIT
0...99
Default Sharpness
35
MAT
0...99
Default Hue
36
VOL
0...99
Default Volume
37
AAL
0..00
Not used
38
CHN
0...00
Change channel in
factory mode
39
InF
0...00
Initialize factory
parameters
40
Inc
0...00
Initialize channels
parameters
41
Scr
0...00
Vertical out on/off
After replacing EEPROM (IC702), set to the refeence adjustment value, and them perform.
Descrição
Reference adjustment value
Posição Horizontal
N o Usado
N o Usado
N o Usado
N o Usado
Aj. Linearidade vertical no "topo"
Aj. de altura
Aj. Linearidade vertical no "centro"
Posição Vertical
Ganho R
Ganho G
Ganho B
Aj. De atraso do AGC
Ajuste de IF-PLL
N o Usado
N o Usado
Veja a descri o a seguir
Veja a descri o a seguir
Veja a descri o a seguir
Veja a descri o a seguir
Veja a descri o a seguir
Veja a descri o a seguir
Veja a descri o a seguir
Veja a descri o a seguir
Veja a descri o a seguir
Veja a descri o a seguir
N vel de ajuste de udio
Aj. de separa o de est reo
Aj. de separa o de est reo
Aj. de sensibilidade de est reo
Aj. de sensibilidade SAP
Brilho
Contraste
Cor
Nitidez
Matiz
Volume
N o Usado
Seleção
de canais no modo fábrica
Inicialização da EEPROM
Inicialização dos canais
Deflexão Vertical L: gado/Desi: gado
34
42
-
-
-
-
34
27
10
38
31
31
31
15
32
-
-
136
07
168
04
00
01
145
255
33
14
07
15
15
08
08
58
99
55
45
50
00
-
03
00
00
00
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