Reply With QuoteIf you unwhack the HDD, is ABC OK then?
DVX555U Pixelating
Hi
Just bought one of these devices, whacked in a HDD, works fine , except for all the ABC channels are pixealting, stop, starting jittering etc. Only ABC channels, anyone k now what I may be able to do this resolve this.
Have another SD st box and all channels work finee and so does the HD tuner in one of my TV's, problem is just this DVDX555U.
Many Thanks,
NB
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If you unwhack the HDD, is ABC OK then?
Digital interferance on ABC?
2 channels, analog or digital can not live in the same space
If (for example) your ABC is in CH37UHF, and you have a VCR or Sat box etc with a modulator, and it outputs on 36, 37 or 38, and that modulator loops through to your DVX555U, then you would get digital breakup.....
Reality is an invention of my imagination.
ಠ_ಠ
ColinOriginally Posted by Colin 2905
U r on the money, works fine when HDD out. Any reason why this would be happening?
Cheers
Shitty caps...
Ya gotta keep 'em regulated
Reality is an invention of my imagination.
ಠ_ಠ
Excuse my ignorance, caps on the board/tuner? Replacing it fix it?Shitty caps...
Ya gotta keep 'em regulated
Also noticed when it is on, it emits a whistling/hissing noise. Would this be the caps?
Cheers
Electrolytics..
Like car batteries go crook.....
The plates buckle & touch the plates next to them
It gets worse after that
Reality is an invention of my imagination.
ಠ_ಠ
SO wot u say above is what is making the noise? Causing ABC pixelating issues? Or both? Why does ABC only pixelate with HDD connected?
Cheers
The ripple hits a harmonic that causes the inductive reactance to throw the circuit design specs out the window
Reality is an invention of my imagination.
ಠ_ಠ
Maybe the extra electrical noise freaks out that particular channel? On my PVR's, the very slight whistline/humming noise is the HDD spinning.
Mick
It is whistling without the HDD in.
Fernbay
Maybe I have had too much to drink tonight, but you are miles ahead of me in the lingo, im confused
**** Winks & yanks chain
Fernbay
Maybe I have had too much to drink tonight, but you are miles ahead of me in the lingo, im confused
Still serious tho..
Change the caps
Reality is an invention of my imagination.
ಠ_ಠ
Change the caps? No way, its going back to get a replacement !!!**** Winks & yanks chain
Still serious tho..
Change the caps
just change the HDD to another model/make to determine if it is the HDD/STB first! I have a 555 with an 80g hdd, never had an issue.
Agree, some hard drives can cause this problem
Thanks guys will do so. But the "whistling" noise is this common on this model? Is it faulty?
Cheers
Fernbay's on the money.
It is a power supply issue, the hard drive is loading it more and causing spurious effects. The ABC problem could be caused by the generation of interfering signals arising from plugging the hard drive in, which is why another hard drive may work fine.
There is something to be said for getting an off the shelf item, although even these can be plagued with there own idiosyncracies.
The whistling is most likely coming from the power supply, they normally operate in the inaudible range unless overloaded or faulty.
There again, it might be tinnitus - it can get worse after a few drinks.
I personally dont have any problem with ABC and pixelation but the stock batteries for the remote leaked acid all over the remote and now it doesnt work
hiya
has the acid leaked on the circuit board. the company i used to work for use pcb cleaner to remove stuff like that even from terminals
rgds
jmaes
Took it back, and got another, havent tested a HDD in it yet, the whistling noise is also evident in the replacement but nowhere to the extent the first on was. Can only hear it if u put the ear to it and no sounds around u.
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