Two vertical scrolling white lines, plus distortion static noise on my tv

[[email protected]]

This problem just started the other day, I am not sure what it is.

It only happens when the cable tv is used (not dvd etc).

Nothing has been changed on the system, any idea how to fix this?

Thanks

 

[sofie]

nymphetamine:
Do tell us just what exactly are you talking about here:
please fill in the blanks......

Television?_____________
Make?__________
Model Number?__________
Chassis Number?__________

Tuner problems?
Cable company problems?
Does the problem exist when you feed a VCR into the television using the RF
coax... and viewing the VCR on channel 3 or 4 ?

 

[[email protected]]

Tv is Sony KV32S20

What I know of the problem is that it only happens on most cable tv
channels, not dvds or games or videos.

Connecting the cable through the vcr doesn't change it, still just two
slowly scrolling lines and static noise.

 

[steve]

This problem just started the other day, I am not sure what it is.

It only happens when the cable tv is used (not dvd etc).

Nothing has been changed on the system, any idea how to fix this?

Thanks

Have you called your cable company to have your line checked. It's
picking up interference from somewhere. A damaged line could be the
culprit.

 

[sofie]

nymphetamine:
How does the picture look when using the VCR as a tuner to select cable
television channels and feeding the television with the A/V inputs? If the
cable television channels look good then it is just about certain that the
Sony tuner and/or IF modules are bad.... maybe cracked solder joints.....
not that expensive at most shops unless a newbie do-it-yourself botched
repair attempt is made first.
You can either get them fixed or just continue using the VCR tuner to get
your channels and view them via the A/V inputs on the television... thus not
using the Sony tuner.
--
Best Regards,
Daniel Sofie
Electronics Supply & Repair
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

snipped:

 

[sofie]

nymphetamine:
......now some IMPORTANT QUESTIONS:
How does the television picture look when PLAYING A TAPE on your VCR through
the RF coax to the television on channel 3 or 4 ???
If it looks OK, the television tuner is probably OK and the fault could be
the Cable TV company.... if it looks bad then the Sony Tuner or IF Block is
bad... maybe cracked solder joints in those modules.
How does the picture look when using the VCR as a tuner and feeding the
television with the A/V inputs? If the cable television channels look good
(using the VCR tuner to select them) then it is just about certain that the
Sony television tuner and/or IF modules are bad.

You can either get them fixed or just CONTINUE using the VCR tuner to get
your cable TV channels and view them via the A/V inputs on the television...
thus not using the Sony tuner.
This is something that a service shop can fix for you..... not a fix for the
technically inexperienced.... expensive damage to those module can easily
occur if the job is botched by poor workmanship due to inexperience. I
have seen similar jobs come into my shop that should have been much less
than $100 that now became more than twice or 3 times that amount due to the
owner trying to save some money by performing an at home do-it-yourself
repair. You don't have to be a rocket scientist to do this work but you
need to know what your are doing with the proper equipment and tools. At
the very least, if the television needs repair you should TAKE the
television to a service shop to get a repair cost estimate so you can make
an intelligent repair decision with facts instead of Internet or telephone
wild guesses.

Best Regards,
Daniel Sofie
Electronics Supply & Repair

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

 

[mike]

This problem just started the other day, I am not sure what it is.

It only happens when the cable tv is used (not dvd etc).

Nothing has been changed on the system, any idea how to fix this?

Thanks

Vertical lines scrolling sideways is one of the symptoms of co-channel
interference.
At least two possibilities
1) loose connection lets RF from local broadcast get in with the cable.
2) overload in front end, try an attenuator on the RF input.
Oh, and bad cable signal, but you've already complained to the cable
company yes???
mike

--
Return address is VALID but some sites block emails
with links. Delete this sig when replying.
..
Wanted, PCMCIA SCSI Card for HP m820 CDRW.
FS 500MHz Tek DSOscilloscope TDS540 Make Offer
Wanted 12" LCD for Compaq Armada 7770MT.
Bunch of stuff For Sale and Wanted at the link below.
MAKE THE OBVIOUS CHANGES TO THE LINK
ht<removethis>tp://www.geocities.com/SiliconValley/Monitor/4710/

 

[[email protected]]

Vertical lines scrolling sideways is one of the symptoms of co-channel
interference.
At least two possibilities
1) loose connection lets RF from local broadcast get in with the cable.
2) overload in front end, try an attenuator on the RF input.
Oh, and bad cable signal, but you've already complained to the cable
company yes???
mike

The cable company is saying the signal is fine, and the problem just
started even though nothing has changed for years.

It doesn't happen in every channel, so how do I prevent the local
broadcast from getting in?

What is "an attenuator on the RF input" ?

Thanks

 

[[email protected]]

nymphetam:
.......one more time here:
View and switch the cable channels through your VCR tuner and feed the
television with the A/V inputs, thus bypassing your Sony television's
tuner. If all the channels are OK then you know that the television's
tuner is bad... but if the same channels are still bad using the A/V
inputs then call the cable company again and have them show you that
the signals are clear on their television that they bring to your
home.... maybe they need to check the signal levels and tighten
connectors coming to your television and home from their "drop" at the
pole. Either way you need them to check the signal with a CATV signal
level meter so that no one is guessing here. To blindly add
attenuators or other devices is wild guessing..... call your cable
company and have them come to your home and straighten this out. This
is what you are paying for.
electricitym
..
..

 

[Vic]

nymphetam:
......one more time here:
View and switch the cable channels through your VCR tuner and feed the
television with the A/V inputs, thus bypassing your Sony television's
tuner. If all the channels are OK then you know that the television's
tuner is bad... but if the same channels are still bad using the A/V
inputs then call the cable company again and have them show you that
the signals are clear on their television that they bring to your
home.... maybe they need to check the signal levels and tighten
connectors coming to your television and home from their "drop" at the
pole. Either way you need them to check the signal with a CATV signal
level meter so that no one is guessing here. To blindly add
attenuators or other devices is wild guessing..... call your cable
company and have them come to your home and straighten this out. This
is what you are paying for.
electricitym
.
.

Are in the UK? If so, then don't call the cable company to your home as they
will bill you if the fault is not in their equipment. Are you using a scart
connection from the cable box to your tv? If yes, then remove the aerial
from your tv and see if the problem goes. If you still have the problem with
just one scart cable connected to your tv and nothing else, then test it
with another scart cable. If you still have the problem then you have
eliminated everything except your tv and the cable company's equipment. To
eliminate your tv try borrowing another tv and connecting that to your cable
box. If you still have the problem then it must be the cable company's
equipment and you can safely call them out to fix it. Hope this sorts out
your troubles..........

 

[[email protected]]

Connecting the cable through the vcr doesn't change anything when i hit
"vcr-tv", still just two slowly scrolling lines and static noise.

I also double-checked all connections, and this is the cable that i use
for the internet, and that still seems to be working fine.

the cable that plugs into the box, the metal thing came off, its just
the metal wire in the center. once in awhile that caused a problem, but
all you had to do was set it in better and everything was fine.

i have this thing the cable-tech put in between my cable modem and the
cable, i will remove that and put it between the cable-box and the
cable and see if that stops the 'interference'.

 

[[email protected]]

I am in the US, and its actually two HORIZONTAL scrolling lines.

 

[[email protected]]

One more time, please read the prior posts and do EXCATLY what is said
and post the results.

What happens when the vcr is connected to the Video input (not cable
tuner input) on the tv set and you tune those same channels?

What happens when you disconnect everything except for the cable line
and send it directly to the tv set?

If it is a cable company provided cable internet box, it could be
causing the problem.

What metal thing are you talking about coming off? Sounds like you
have at least one bad cable connection that needs replaced.

 

[[email protected]]

nymphetam:
Evidently we have a communication problem here..... re-read the
previous reply posts by me and the reply posts by sofie and follow the
exact instructions....
i.e. ..... comparing the picture on the Sony television when using the
VCR's tuner to select channels and then feeding the signal to the
television via the A/V inputs thus bypassing the television's tuner
circuitry..... the television should not be on channel 3 or 4 for this
test, it should be switched to the A/V input. If the picture is good
on channels that were bad when being tuned directly by the television
tuner without the VCR then you have verified that the Sony television's
tuner is faulty and not the cable company. Again, read all the reply
postings and conduct the various tests exactly and post the various
test results so we can help you with a diagnosis.
electricitym
..
..

 

[[email protected]]

nymphetam:
If the coax cable is not securely grounded with the "metal thingy that
came off".... that could certainly cause symptoms similar to what you
are seeing.... get a new cable or a new connector "metal thing"
installed correctly.Don't bother to perform further tests or seek additional repair
solutions until the above "metal thing" is properly replaced. It is
not an optional "thing".
Once the connector is replaced or a replacement cable is used then you
should re-read all of the reply posts by electricitym, sofie, dkuha,
etc.... and perform the test exactly as posted.... reply with the
results.
electricitym
..
..

 

[kip]

Why bother with this Clown.