What make and model cable box do you have? Many let you in to their diag menus to see the signal strength you are getting. I highly doubt they damaged your TV, sounds like they screwed up the signal though.
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Originally Posted by JC-TX /forum/post/15445518
It is a SA 8300HD. I swapped it tonight and they gave me a 8240 HDC and it looks much worse. They claim that it is the newest one and it does show a manufacture date of 7/08. TWCable tested the signal strength and said it was not the signal, but what about SNR or BER could this be an issue? They even mentioned voltage damaging a TV. I am bummed to the point i won't even turn on the TV. Seems like I should start over and run all new lines and fittings.
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Originally Posted by BeachComber /forum/post/15452499
Internet (OBVIOUSLY) needs 2 way communication. Actually, so does the TV STB to ask and receive authorization etc. An original cablecard is the only thing that does not need 2 way communications.
I find it difficult to believe you only had 1 way communication on your internet as it would have never worked - so there seems to be something more to this story than what you have stated here.
But I sure would not have the Power Inserter running through the 4 way splitter, regardless of how it may be labelled with a DC pass through (especially as the amp will take a direct remote power input).
But regardless, if there really was damage, the way you have it connected up, it would have damaged the STB or your Receiver - not the Plasma.
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Originally Posted by JC-TX /forum/post/15452751
This is TWC's wiring not mine. Power amplifiers concern me especially when you have techs that are trained a day or two then sent out to folks house to work on customer lines who have thousands of dollars worth of equipment hooked to them.
The tech unplugged the coax(at the 4-way splitter) that receives voltage from the wall and powers the cable amp then plugged it back in while the STB, receiver, and plasma was turned on. I threw a fit and told him that equipment needs to be powered down before he unplugs anything. What do you think the chances are that the receiver has been damaged
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Originally Posted by JC-TX /forum/post/15452751
or do you think it is more likely that this is a wiring/signal issue?
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Originally Posted by JC-TX /forum/post/15452751
Is there a way to test for damage on the receiver.
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Originally Posted by JC-TX /forum/post/15452751
I have the pioneer Elite VSX84 and I know it does some video conversion (not to 1080p) but I currently have it turned off. The picture quality on a small HDTV with a straight coax feed (no STB) also went down to the point we have to turn up the contrast and brightness all the way up for it to be light enough to see the picture. Would this make you think it is a signal/wiring issue?
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Originally Posted by JC-TX /forum/post/15452751
How would you recommend I change the wiring? Thanks I appreciate all the advice i can get at this point I pretty bummed and will not even turn the Plasma on.