XTRAView and SD PVR

S

shearder

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Hi all

A question if i may: i have bought the HD PVR, i already have an SD PVR and i have also a roll of cable, multiswitches etc etc. So now I am ready to do the installation HOWEVER, when i was buying the necessary equipment the guy at the supplier said you do not need DC blocks because when passing through a splitter it automatically "removes" the voltage.

OK my immediate response would be K@K give them to me but they didn't have stock anyhow. BUT I believe i DO need them because the SD PVR needs the eyelink active which feeds voltage into the "system" and so I still need to protect the HD-PVR and TVs - am i correct???

Thanks in advance.
 
OK i have phoned Multichoice, Zak Speed, Communica etc etc and NO one has a DC block. Right so the assumption is that the DC block would be a simply resistor-ed item. This means i could get simply get a splitter box, open it modify the circuit at the point where the RF OUT of the SD-PVR connects with a resistor and this would also negate a DC block at EVERY TV and HD-PVR?

Would this work? Theoretically yes, i recon, but then what ohm resistor would be in-line?
 
Ok I have seen a DC block which has a "load" of 75ohm which means i could modify a splitter to have a "built in" 75ohm DC block - a simple resistor in series, and it should work meaning that ALL items in the circuit, HD PVR and TVs do not need their own DC block. Logically this makes sense.

Any ideas? thoughts?
 
I have the SD & HD PVR in extraview mode, but I use blasters & not the eyes. So I dont have any DC Blocks. I go RF out from SD to RF in on HD (for heartbeat). RF out from HD goes to all my non HD TV's.
As ost says, my setup would not require the TV Link to be on.
 
Hey ost

Yes this i know BUT according to the installation guide you need the Eyelink circuit tuned ON for the heartbeat to work on the SD-PVR. SO this means i need the DC blocks in place. Other decoders not. I am actually NOT using the eyelink at all. Perhaps i can just put the eyelink in line between the SD-PVR and the splitter even if it isn't being used... hmmmm there's an idea!
 
Hey IRG - so i take it your eyelink is off and you STILL have a heart beat? I haven't started my installation because i didn't have DC blocks as per the xtraview manual v3.1 on page 4 - which states
On the SD PVR the TV (and heartbeat) receive circuitry is on the RF OUT port and it cannot be changed. In an XtraView installation the TV eye option in the TV Installation (SD PVR) menu must be active (On) for the decoder to receive a heartbeat signal.
Click to expand...
 
I had such a long argument with the DSTV guys, but my heartbeat works fine... Just dont put the two decoders anywhere near each other (too much heat), it interferes with the heartbeat. Screw the manual ;) TBH, I must check my SD PVR's settings (been ages since I looked at them) I presume at this point the TV Link is off cause I dont use the eyes. I'll post a follow up later today for you.
 
Last edited:
Thanks IRG. Yeah i don't use the eyes either. I have blasters and the HD is downstairs with the 42" and the SD is upstairs which serves the bedrooms. Thanks for your assistance.
 
shearder said:
Ok I have seen a DC block which has a "load" of 75ohm which means i could modify a splitter to have a "built in" 75ohm DC block - a simple resistor in series, and it should work meaning that ALL items in the circuit, HD PVR and TVs do not need their own DC block. Logically this makes sense.

Any ideas? thoughts?
Click to expand...

The 75 ohm value is the impedance. Don't do what you just suggested It does not make "logical sense".
 
Quantum Theory said:
The 75 ohm value is the impedance. Don't do what you just suggested It does not make "logical sense".
Click to expand...

Hey Quantum, I have a bit of electronics know how LOL so yes it is impedance and would therefore reduce the voltage BUT again it's a crude "fix" and not recommended. :)
 
You said you are not using TV links, so what was said above is correct... Just switch of the TV link voltage for both decoders. Then you will not need that DC block.
 
Thanks Quantum. Yeah, IRG said he would confirm so i don't need the eyelink active but still get a heartbeat - that is good!

I will continue my installation tonight as i need to get my smartcard upgraded this afternoon.
 
My Settings :

HD PVR:
Relay Commands Off
Receive commands Off

SD PVR:
Relay Commands Off
Receive Commands on
SD Remote only
 
IRG said:
My Settings :

HD PVR:
Relay Commands Off
Receive commands Off

SD PVR:
Relay Commands Off
Receive Commands on
SD Remote only
Click to expand...
Thanks IRG. So is your eyelink on or off?
 
IRG said:
those are my only settings for extraview ...
Click to expand...

AH great. Thanks IRG. I basically rewired my whole house with new cable yesterday late! Added in the splitters and 2x4 multiswitch and moved the SD PVR around upstairs to a better place. Now all i have left to do is run 2 cables from the multiswitch to the HD-PVR tonight from upstairs to downstairs. NOT iin the mood!! Over the years the route i need to use has desks and computers, music equipment and cables AND a xmas tree stashed there LOL - means i have to take EVERYTHING out and then open the box skirting which is about 8m long and 2 screws every 500mm ahhhhgggggg - the things we get ourselves into!!
 
shearder said:
Thanks IRG. So is your eyelink on or off?
Click to expand...

You can switch it off. I've never heard that it has to be on with the SD PVR. Only limitation with all decoders is that your communication port for XtraView and the one for the TVlink has to be the same input/output. That is why the RF out + RF out setup with T-piece, SLx splitter and TVlinks is so popular (you need DC block for this setup). Gives you full viewing and control of both decoders, from all screens... but you're not using TVlinks...
 
In my configuration I can see all channels on the RF side (2 X SD + 1 X HD) but honestly only ever stays on TV1 of the SD PVR. BTW check my HDD mod on my SD PVR... search for PVR mod in the forumn...
 
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