HDMI kvarovi?

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i televizor spojen preko HDMI kabela.







Re: HDMI kvarovi?
On 25.9.2014. 9:20, Zoltan wrote:















http://www.te.com/en/products/circuit-protection/browse-products/overvoltage-devices.html


HDMI, koje crknu umjesto TVa, pa, daj si truda.



Re: HDMI kvarovi?
On 25.9.2014. 13:51, miha wrote:
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na procesor.










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Re: HDMI kvarovi?

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Mogla bi to biti dobra sudska sapunica!-:)  



Re: HDMI kvarovi?

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ani

im ako na
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iB9%kove i
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iode  =

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am  =

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spojen  =

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Kod jeftinih ureF0%aja moguE6%e je da je spojen direkt ali to se viB9%e =
ne bi  =

smjelo raditi,
postoje npr. varistori za takvu zaB9%titu, konkretno su u 0402 kuE6%iB9%
tu,  =

kapacitet im se kreE6%e
oko 0,3-0,9 pF jer u suprotnom BE%dere korisni signal.
Napon voF0%enja oko 150V (jer navodno svi kontroleri imaju internu zaB9%
titu  =

za statiE8%ki el. do 200V). Mada je namjena tih varistora prvenstveno  =

zaB9%tita od statiE8%og elektriciteta, energetski su slabi,
max. energija apsorpcije je u kontra korelaciji sa gore spomenutim  =

kapacitetom.

http://www.epcos.com/epcos-en/529942/products/product-catalog/protection=
-devices/voltage-protection/ceradiodes/search-results---ceradiodes?so3D%


Re: HDMI kvarovi?


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smjelo raditi,






max. energija apsorpcije je u kontra korelaciji sa gore spomenutim
kapacitetom.

http://www.epcos.com/epcos-en/529942/products/product-catalog/protection-devices/voltage-protection/ceradiodes/search-results---ceradiodes?so =

----------------------------





Re: HDMI kvarovi?

wrote:

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olirani
e na
C2%B9, osim ako  =

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C2%BEeljne viC2%B9kove i
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titne diode   =

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li sam  htio
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rektno spojen
 viC2%B9e ne bi
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A6%iC2%B9tu,
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zaC2%B9titu
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no
on-devices/voltage-protection/ceradiodes/search-results---ceradiodes?so3D%

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koliko volti


VeC4%87ina kontrolera ima na svim portovima zaC5%A1titne diode (znam d=
a miccrochip  =

ima) i trebao
bi izdrC5%BEati viC5%A1estruko veC4%87i napon na I/O portu od samog n=
apajanja pod  =

uvjetom da struja izvora ne prelazi par mA.

Re: HDMI kvarovi?
On 25.9.2014. 20:04, - Zoki - wrote:

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izvodi se na konektor ili izlazi putem kabela.







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Z

Re: HDMI kvarovi?

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e ne bi
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 tj.  =

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B9%tu,
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B9%titu
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ion-devices/voltage-protection/ceradiodes/search-results---ceradiodes?so=
3D%
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a. Ako  =

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puno.  =

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.  =

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U tom sluE8%aju nisam siguran da ti moBE%e iB9%ta pomoE6%i, jaE8%e zaB9%
titne  =

energetske kompenente
u pravilu imaju veE6%i kapacitet a on BE%dere HDMI signal

Re: HDMI kvarovi?


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STB, to mora dosta blizu udariti.

--  

Re: HDMI kvarovi?
On 29.9.2014. 9:49, [.Night.] wrote:
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3.b TV i STB mrtvi


su prisutni i dobro spojeni, uzemljenje je ok.

Z

Re: HDMI kvarovi?

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Re: HDMI kvarovi?
On 29.9.2014. 17:36, vaso wrote:
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Re: HDMI kvarovi?

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sustav?  



Re: HDMI kvarovi?
On 30.9.2014. 15:42, vaso wrote:



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Naponi su provjereni na na?in da je od jedne uti?nice do druge dovu?en  

Razlika napona postoji samo u odnosu faza-nula i faza-zemlja (L--L=0V,  
N--N=0V, E--E=0V, N--E=0V, L--N23%0V)


Re: HDMI kvarovi?

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Osigurac u primaru?! Ako je onda je to ozbiljan kvar (proboj SMPS-a), moguce  
cak podlozan tuzbi jer kod koristenja neuzemljene opreme (a masa TV-a nema  
uzemljenje) moze iazvati i smrt.
Sto se zastite tice IMHO HDMI je diferencijalan pa bi se mozda mogli  
koristiti transformatori za UTP ethernet...  



Re: HDMI kvarovi?
Dana 30.09.2014 13:08, megamusic je napisao:

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STB, barem oni od HT-a imaju vanjski, odvojeni SMPS adapter 12V/2A i ak  
je on probio, onda se moram zamisliti. Naime, ganjam s njih nekoliko LED  
rasvjetu po kuci, pa ak moze probiti primar na sekundar samo tak, bude  
veselo.

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