Question about Panasonic CT-27E13 27" TV

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Tuner problem? I have this TV hooked up to cable via the coax tuner. Everything worked fine until a couple of weeks ago. I get grainy picture on channels 20-48 but all other channels show flawless picture. I first thought it was the cable and replaced it. Same problem. Then I thought it's the splitter and hooked directly at entry with both old & new cable, same issue. I connected both old and new cable to another TV and everything works great. This is how I go to conclude it's the tuner at fault. Does anyone have any ideas?

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This is an indication of a bad ground connection. Since you have replaced the cable and splitter, it suggests an internal grounding problem. If you can solder and can get to the tuner, resolder the ground points within the tuner and update this with the results.

Dan

Posted on Sep 30, 2008

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If the set has the standard RCA audio and video jacks for input you can hook a cable box or even an old VCR to those and BYPASS the coax fitting--hook up to those inputs--select them on the set and leave set on that input and change channels with the box or VCR.

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RCA 27 inch ColorTrak Plus. TV is hooked to cable. I can produce the problem by wiggling the coax connector. The screen goes through various degrees of snowy-ness until I find the sweetspot on the coax....


The failure with this TV is due to faulty ground in the tuner that is why when you wiggle the cable connected to the tuner the picture clears up. If this failure is not repair, it will corrupt the data on the eprom until the TV will not power ON anymore.
Check the info from this link to find more info on the failure of your TV.
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If you go through these steps and you select the coax input on your TV your PIP will work on the lower channels. It MAY be possible to tell your TV to display the input from the composite cables on one of the PIP screens and the input from the coax on the other, but I kind of doubt it.

I know this sounds complicated and if you're not familiar with the way all this works it is complicated. The reason lots of people won't respond to this kind of question on this site is because there is no easy fix and by trying to help I run the risk of getting a bad rating. I don't get paid for this, I just like trying to help, so if I have not explained this in a way that's helpful to you please ask some additional questions before you give me a bad rating. Thanks.

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1 Answer

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1 Answer

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Its is a small 2 inch square block called a antenna block or the tuner its self that has to be replaced. If it is the tuner block assy. this should be available at almost any repair store and they should know what im taliking about too! If there is no tuner block, then the whole tuner inself is going to have to be replaced and this could be expensive. If you know how to solder and unsolder, great. You can get a replacement tuner from Http://www.ptscorp.com and simply unsolder the old tuner and replace it with a new one. But if you have no electronic repair experience, you should seek out a trained tech to assist you. Good luck anmd please get back to us if you need more assistance.

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