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Television say check signal cable . I have a scientific atlanta cable box.What do I do?

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  • Televison & ... Master
  • 5,161 Answers

How is the TV connected to the cable box (HDMI, component video, etc.)? Make sure that the cables are securely connected and that the TV is on the correct input. Try swapping the current cables for new ones. (The HDMI cable has come loose on my entertainment system at times.) If you route HDMI cables via a sound receiver (cable box -> receiver -> TV), try a direct connection to the TV.

For my TV, I have to turn on one set-top box before I turn on the TV to get the signals to correctly synchronize. (Try turning off everything connected to the TV and then turn on the accessories first. Then turn on the TV.) For another set-top box, it needs to be turned on before the TV. (So try both options.)

Make sure that your set-top box is on and try a different TV or input if possible. If a second TV doesn't work with the box, contact the provider and check for a service outage. (Also try a different set-top box (like a blu-ray player) to check if it is the input on the TV.)

Note: I've had mice or other things damage wiring; this takes out the cable and phone lines. If this is outside damage, your service provider should repair the damage for free.

I hope this helps. Please add a comment with more information about your TV and the connections that you are using for additional support.

Cindy Wells

Posted on Apr 25, 2013

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Posted on Jan 02, 2017

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SOURCE: Picture, No Sound from HDTV Box

CON-YOU'VE DIAGNOSED YOUR OWN REPAIR.GET A NEW CABLE BOX.JOE TV

Posted on Dec 17, 2007

SOURCE: HD Cable Box; HD Plasma...........no picture or sound

Same problem, 42" lg plasma

Posted on Apr 30, 2008

  • 93 Answers

SOURCE: Television Won't Display Certain Cable Shows

Okay,i assumed this is what you have:
HD cable box with HDMI cable connection to the Samsung TV.
Listen careful as follow:
First you want to make sure using the same HD comcast box with HDMI connection for our Samsung TV as well as your other TV.Be sure the other TV do received the missing channels from the Samsung TV.You must be SURE you have tested both TVs with the same HDMI cable with the SAME HD cable box.
Now that you have confirmed the both TVS are using the same HD comcast box and the same HDMI cable but the connection that goes to the Samsung TV are missing some channels,at this point,use another HDMI connection behind your Samsung TV and see if you have the same problem.If so,please also try the left side of the HDMI connection and see if you could get the other channels.
Let me know!
solutiondoct

Posted on Nov 11, 2008

johncaman
  • 201 Answers

SOURCE: HDTV and cable box; no volume on channels higher than 99

Can you tell me, is the set top box connected directly to the tv? (i.e. not to a surround sound receiver or anything)

Posted on Mar 13, 2009

jerryg50
  • 1667 Answers

SOURCE: I have a Scientific Atlanta 3250HD cable box that

Did you call Scientific Atlanta to find out if this could be a software issue in their box, or if there is a failure occurring?
I have had cable boxes do similar things to what you are describing. It turned out to be the box was defective and had to be changed. They were not serviceable. I believe these cable boxes were made by Scientific Atlanta.

Jerry G.

Posted on Nov 14, 2009

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How do I connect a Sony DVD DVP-SR210P to a Scientific Atlanta Explorer 4240 HDC and a Sylvania TV C320SLX?


I am not sure you can connect your DVD player to your cable box. You should be able to connect both your cable box and DVD player to your TV set with two HDMI cables. This link is a pdf_usecares file of the TV manual that shows how to hook up your dad and cable box.

http://www.managemylife.com/mmh/pd_download/lis_pdf/OWNM/L0902617.pdf

Hope this helps.
Bob

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1 Answer

Front power indicator blinks, clicking/high pitch sound


  1. This how to is to repair hard drive, software and some firmware issues that can arise on specific cable DVR and DAC and DCT boxes, First instructions are for Scientific Atlanta hardware. Firstly, one should be certain that the cable box has the coax (cable antenna wire) hooked up to the CABLE IN or RF IN on the box itself and be connected to a "hot" outlet - one that you KNOW works. Test it by connecting a TV directly to outlet. If you get a weak signal, the box will too. Digital boxes require a clean SNR. Remove in-line "surge protectors" on the coax. These prevent the signal from being sent by your cable provider to your box.
  2. Scientific Atlanta DVR or High Def boxes:These need to be "booted" or reset when certain errors occur. No audio on certain channels when SAP is NOT set to ON and confounding error codes that one can't seem to get out of. Common yet confounding errors are : No Audio on DVR Playback. No Audio on Certain Various Channels (ruling out SAP which can be enabled through the box, OR the television set itself) there are easy ways to test. If some channels audio is in Spanish when they are normally in English...the obviously you will check SAP first.
  3. Disc errors. On screen error on your TV that says something like..."there are problems with your storage disc.." or upon DVR playback instead of playing your program it loops upon itself and plays nothing.
  4. two different steps to reboot box: Simultaneously press VOL+ VOL- and "INFO" buttons on box itself, not from remote. Box will then display "bOOt" and shut down totally. Do not press ANY buttons or try to power on said box. Wait for the correct time to display on the box. This process can take anytime from 40 seconds to hours, depending on how fast the cable company's servers are responding at that moment and whether or not you have enough of a cable signal to fire up the download process. If you call customer service for your provider if this does not work, most likely a truck roll will be run for a tech to come out to your residence to fix the signal issue.
  5. When the correct time display is on the Scientific Atlanta box, THEN power on box and problems should be solved. An alternate way to reboot box is to simply unplug unit from power supply and replugging it in. Simply powering it on and off with the POWER ON button will not solve anything.
  6. On a Motorola box and/or DVR, the easy VOL+ VOL- and INFO will not work to reboot. Remove AC power plug from wall socket and wait 30 seconds to a minute while box is powered ON. Plug back in to wall socket.Box will "do it's own thing" and power itself on on it's own after the cycle has been successful (30 - 60 seconds) and the box should power itself back to the ON without you doing anything. Time will not display on Motorola"General Instrument boxes unless you set it up to do so in the settings mode.
  7. Common IControl/On Demand errors:
  8. MOTOROLA BOX Error 225 : A billing lock to prevent you from ordering pay per views. If your account is past due, or if you have an order to move to a new address in the service provider's "system", this is a preventive measure to keep customers from loading up tons of expensive pay per views and skipping out. Your cable company cannot over-ride this error. If you are not in above situations, your provider can "up" the limit on the box and clear it so you can order PPV through your remote control.
  9. SCIENTIFIC ATLANTA: for above mentioned error code, your SA box will display not a code but a prompt to contact your provider by telephone. Same issue.
  10. MOTOROLA BOX ERRORS 204...203.. 207..these may be easily solved by simply reseating the coax and then rebooting box.
  11. SCIENTIFIC ATLANTA ERRORS 2207: reboot box. This is a general code meaning the box has lost contact with the server. All of your iControl /On Demand orders come through your local cable head-end's servers. If and when it gets overloaded and times out, error 2207/207 will happen. Most of the time this is temporary. Reboot box, try again in 15-20 minutes.
  12. DVR BOX not displaying/recording/playing items:
  13. Reboot. Good chance of fixing.
  14. If your TV displays "One Moment, Please. Your Channel Should Be Available Shortly..." this is a SIGNAL issue. Reseat the line running from wall to the CABLE/RF IN on the box and at the outlet at wall. If no joy, call cable operator.

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Looking for 'Scientific Atlanta Explorer 4250HD' code for Jumbo URC-152 remote


Check these codes. 004/ 009/ 172/ 175. If you wish to get four digit or five digit codes, check this link.

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1 Answer

Trying to program a universal remote to scientific atlanta 8300hd cable box. I can't find code for remote


If you have a URC-7800 the codes 0477, 0008, 0017 should work for the scientific atlanta cable box.

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1 Answer

I have a Scientific Atlanta 3250HD cable box that loses sound everytime a channel is changed. The box must be rebooted to get the sound back each time. I have no problems with the 4250HD boxes. Any...


Did you call Scientific Atlanta to find out if this could be a software issue in their box, or if there is a failure occurring?
I have had cable boxes do similar things to what you are describing. It turned out to be the box was defective and had to be changed. They were not serviceable. I believe these cable boxes were made by Scientific Atlanta.

Jerry G.

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1 Answer

Signal drops out, displays "No Signal"


My best guess is the signal to the Cable box. It is not a hardeware problem if you replaced the box it has to be the cable signal. Loose connections are sometimes the problem.

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Off Air?


The Scientific Atlanta box was a cable box and recieved CATV signals. The Direct TV box is satellite only. You might check if it has a built in ATSC tuner for off air digital signals. Direct TV in most locations offers the major networks in HD format.

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