LA76814 Ver la hoja de datos (PDF) - SANYO -> Panasonic
Número de pieza
componentes Descripción
Fabricante
LA76814
SANYO -> Panasonic
LA76814 Datasheet PDF : 35 Pages
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Input signal
Symbol
Drive adjustment
maximum output
RBout127
Gout15
Output attenuation
RBout0
Gout0
Gamma correction
Rγ
Gγ
Bγ
LA76814
Test point
19
20
21
19
20
21
Input signal
L-100
L-100
Test method
Measure the 100IRE amplitude of the R, B output
signals.
R output (pin 19) ···· DRVHR [Vp-p]
B output (pin 21) ···· DRVHB [Vp-p]
Measure the 0IRE DC levels of the G output
signals.
G output (pin 20) ···· DRVHG [Vp-p]
Measure the 100IRE amplitude of the R, B output
signals.
R output (pin 19) ···· DRVLR [Vp-p]
B output (pin 21) ···· DRVLB [Vp-p]
Measure the 0IRE DC levels of the G output
signals.
G output (pin 20) ···· DRVHG [Vp-p]
RBout0* = 20Log (DRVH*/DRVL*)
Gout0* = 20Log (DRVH*/DRVL*)
Measure the 100IRE amplitude of the RGB output
signals with Gamma Def being ON and OFF.
···· *A, *B [Vp-p]
Bus conditions
Brightness:
0000000
Brightness:
0000000
Red/Blue Drive:
0000000
Gamma Def: Off, On
B Gamma sel: 11, 00
*γ = 100*(*A/*B)
* : R, G, B
VIDEO SW Block Test Conditions
When measuring the VIDEO SW block, set the bus bit to 63(0111111) for Contrast, 63(0111111) for Brightness.
Input signal
Video signal input
1DC voltage
Symbol
VIN1DC
Test point
42
Input signal
L-100
Test method
Input signals to pin 42 and measure the voltage of
the pedestal.
Bus conditions
VIDEO SW: 1
Video signal input
2DC voltage
SVODC
L-100
44
Input signals to pin 44 and measure the voltage of VIDEO SW: 0
the pedestal.
SVO terminal DC
voltage
SVODC
L-100
40
Input signals to pin 42 and measure the voltage of VIDEO SW: 1
the pedestal at pin 40.
SVO terminal AC
voltage
SVOAC
L-100
40
Input signals to pin 42 and measure the voltage of VIDE0 SW: 1
the pedestal at pin 40.
No.A0253-20/35
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