kak da..
13 отговора
383 прегледа
kak da..
hi
nqkoi moje li da mi kaje kak da obyrna S-video kym RCA(video in na TV)
ako moje da mi date nqkakwi shemi kak da si naprawqt kabelite
nqkoi moje li da mi kaje kak da obyrna S-video kym RCA(video in na TV)
ako moje da mi date nqkakwi shemi kak da si naprawqt kabelite
Re: kak da..
не помня кое краче за какво беше,но са само 3 - маса,яркост и цвят
последните 2 сигнала ги смесваш през съпротивление 75 ома и подаваш този сигнал към тв
последните 2 сигнала ги смесваш през съпротивление 75 ома и подаваш този сигнал към тв
reshenieto
Eto kakvo namerih v mrejata:
-------------------
S-video to composite video adapter
I got this somewhere on the web a looong time ago.
Hope it helps
Hein
This simple adapter can be used to convert Y/C video (S-video) to a
composite video. This adapter is useful in cases where your video
output device has only S-video output but your signal source accepts
only composite video input. This circuit works with both PAL and NTSC
video standards.
Y-ground---------+
+---------- RCA/composite ground
C-ground---------+
Y-------------------+
+--------- RCA/composite video
C------------||-----+
470pF
This circuit can be quite easily build inside a the S-video connector
case if a physically small size 470 pF (ceramic) capacitor is used.
Larger capacitor values will also work, but cause picture to become
"softer". The voltage rating of cpacitor can be 10V or more.
This circuit works in practice quite well even though the circuit
operation is not ideal. This means that impedances and signal levels
not matched exactly right, but near enough to work accetably. The
picture quality you get from this circuit is is good, but not as good
as with best possible composite video output circuitry.
Here is the pinout of the S-video connector (picture is a view to
female connector on the equipment end):
V
4 o o 3
2 o o 1
_ == _
|__|
1 Y ground
2 C ground
3 Y (luminance+sync)
4 C (crominance)
V Notch on top
== Key hole
-------------------
-------------------
S-video to composite video adapter
I got this somewhere on the web a looong time ago.
Hope it helps
Hein
This simple adapter can be used to convert Y/C video (S-video) to a
composite video. This adapter is useful in cases where your video
output device has only S-video output but your signal source accepts
only composite video input. This circuit works with both PAL and NTSC
video standards.
Y-ground---------+
+---------- RCA/composite ground
C-ground---------+
Y-------------------+
+--------- RCA/composite video
C------------||-----+
470pF
This circuit can be quite easily build inside a the S-video connector
case if a physically small size 470 pF (ceramic) capacitor is used.
Larger capacitor values will also work, but cause picture to become
"softer". The voltage rating of cpacitor can be 10V or more.
This circuit works in practice quite well even though the circuit
operation is not ideal. This means that impedances and signal levels
not matched exactly right, but near enough to work accetably. The
picture quality you get from this circuit is is good, but not as good
as with best possible composite video output circuitry.
Here is the pinout of the S-video connector (picture is a view to
female connector on the equipment end):
V
4 o o 3
2 o o 1
_ == _
|__|
1 Y ground
2 C ground
3 Y (luminance+sync)
4 C (crominance)
V Notch on top
== Key hole
-------------------
Re: reshenieto
neshto takova , ne razbrah kakvo to4no ti trqbva no shte go ima na tozi sait[линк]
Re: reshenieto
ami w pF ne se seshtam kakwo drugo oswen kondenzator moje da e
Wsichki sme uiazvimi, ne pozvolqwaite na nikoi da vi ubejdawa w protiwnoto !!!
Wsichki sme uiazvimi, ne pozvolqwaite na nikoi da vi ubejdawa w protiwnoto !!!
Re: reshenieto
I az sam go probval, pone 3 kabela sam napravil - vsicki backat OK!
Ja se probvaj oste vednaj.
Tova 470 pF naistina e kondenzator, stojnostta mu ne e kritichna.
Stava i s 1 nF.
Ja se probvaj oste vednaj.
Tova 470 pF naistina e kondenzator, stojnostta mu ne e kritichna.
Stava i s 1 nF.
Re: reshenieto
не може да не работи,освен ако не си повредил изхода,или е забранен от някое меню
при обикновено свързване на двата сигнала без никакви допълнителни елементи трябва да дава картина със задоволително качество,иначе нещо не е наред
при обикновено свързване на двата сигнала без никакви допълнителни елементи трябва да дава картина със задоволително качество,иначе нещо не е наред
Re: reshenieto
znachi na vidioto mi izliza edna kartina... snejinki s nqkolko cherni iwitchii neshto kato che li ne si si nastroil kanala na telewizora no nqma tzwqt nishto... dori ne se razlichawat obrazite
probwal sym s 390pF i s okolo 4-10nF
probwal sym s 390pF i s okolo 4-10nF