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Technical Index Aerial+LNB 1 Cable Aerial amplifier Aerial Filters Aerial Groups Aerial Points Aerial - Which? Amp Adder Analogue Switch-Off A18QR aerial Arcon Dish Atticbox Audio Adapter USB AV equipment BBC/ITV outside UK Bedroom sound Best aerial Cable Kinked Cable specs Cable-Thin Coax Cable - Which? CAMs etc. Capacitor Kits Channels Chimney Brackets Coaxial Cable Cooling fan Compass use Cupboard Control DAT45 aerial DC inserter Decouple cable Denso Tape Digibox in loft Digisender Digital Ariel Diplexers DirecTV Disconnect safely Disguise a dish Dish indoors Dish Painting Dish Sharing Dish Size E-books Electric shocks Electronic Kits Electronic Parts Epoxy resin glue Extend cable Extender Plate F1 for Free Filter-notch Fire Hazard Fit F Connectors Fit TV plugs Foxsat HDR Free channels Freeview/Freesat Freeview Problem Freesat Install DIY French sat TV German sat TV Greek sat TV Heatshrink Sleeving Hole Cover Humax PSU Inside Sky Digibox Instructions Interference Invacom LNB Italian sat TV IR sensor-locate Large Dishes Lightning Protect Liquid Spilt LNBs - about LNBs - add more LNB amplifier LNB Boots LNB Fitting LNB-Replace Sky LNB Reset LNB skew LNBs-Switching two LNBs 2 in 1 cable LNB-waterproof your Loft Boxes Magic eyes Make Fly-Lead Multiroom phone Multiswitches No Satellite Signal Omnisat Semitronic Orbital dish Phone Socket Wires Phone surge protect Plate-Twin-F Plugs-which? Plug-Top PSUs Plus Combiner Powermid+cable TV Powermid XL Reed Switches Remote Codes Remote Eyes Remote extenders RJ45 plugs Satellites-where Scart leads Self-Amalg Tape SelfSat Antenna Signal Combiners Signal Meter Silicone Grease Sky x2 same room Sky+ batteries Sky Digital Sky in Europe Sky Install DIY Sky LNB Sky LNB-extra Sky Multiroom Sky Remote Probs Sky room wiring Sky Plus Solder - How to Split Digibox RF Split Dish cable Split satellite signal Stacker-Destacker Stuck in standby Thomson Problems Tree blocks signal Triax minidish TV/VCR faults TV Links tvLINKplus TV set New TV eyes USALS Videosenders VisionLink Wall Plates WF125 Plugs What Channels Which plugs Wire my house 304114 wall plate Shop Index Checkout All Aerials Aerial Amplifiers Aerial Attenuators Aerial Boosters Aerial Filters Aerial Hardware Aerial Meters Aerial Splitters Audiophile Bargains Books to download Boosters, Amps Cable & Extensions Cable Joint Cable on Reels Capacitors Caravan/motorhome Car Radio Adapters CAT5-HDMI Components Computer Batteries Computer Leads Digibox spares DiSEqC Switches Dishes Dish Hardware DVD Players Earth rod Electrical - mains Electronic components Electronic Kits Electronic Kits 2 Extension - Coax Extension - mains Faceplates Filters electrical F Plugs Fly Leads Freeview cable Freesat Digiboxes FTA Digiboxes Freeview receivers Fuses Gaming Accessories German Sat TV HDMI / Audio Headphone Amp Home Cinema Installation kits Leads + Plugs LED Torches LNB cable LNBs for Sky LNBs 40mm LNBs C120 LNB switches LNB amplifiers Loft Boxes Magic Eyes Mains Electrical Meters Motorhome Motorised dish bits Multiswitches Power supplies Remote Controls Remote extenders Resistors RF Cable RF Modulators Satellite Cable Satellite Meters Scart Leads Screen Cleaning Signal Combiner Sky Digiboxes SkyLink Amplifiers SkyLink Bypass Splitters Telephone cable Thomson PSU Tools Grease Glue Transistors TV Eyes TV Plugs TV Wall Brackets Videosenders Video/Leads Wall plates 1 Wall plates 2 Technical Index FAQs BLOG Contact Us		My Sky Digibox says 'No Signal' or 'Technical fault'! With any "no signal" fault be sure to inspect the dish. Make sure it's still there and isn't loose. Make sure the LNB is still on the end of the arm and that the connections look all right. (Check them close-up if you can.) Make sure nothing is obstructing the signal, such as new scaffolding, a tall structure, vehicle or tree. If the fault affects only a few channels, check for a source of local interference, such as a DECT wireless telephone or "Snooper" radar detector in a car parked very close by. It could also be an LNB cable fault (kinked or water inside) or tree branches in the signal path. With any possible Sky Digibox fault, the first thing to try is a "reboot". To do this, you simply switch off power to the Digibox at the wall socket. In the case of a model which has recording capability, first switch it to standby (if possible) and wait for the Hard Drive to stop spinning. Allow a minute for this before switching off the power at the socket. DO NOT pull the small plug out of the power socket at the rear of the Digibox while the cable is still live. This will cause arcing inside the small socket and may blow the internal fuse or even cause serious damage to the internal circuits. Before switching power back on, remove the card and inspect it. If it looks burnt do not replace it in the slot. Switch the power back on and wait for the Digibox to reboot. If it has a hard drive, this may take a couple of minutes. Check for the "no signal" fault. (You don't need the card for this.) If it appears to be OK, replace the card in the slot, sliding it firmly but carefully as far as it will go. Be sure to put it in the viewing card slot. (If the card looks as burnt as this one, contact Sky and ask for a replacement but NOTE: the moment you request a new card, they will disable your existing card and it may take several days before the replacement arrives!) Note: if somebody suggests you to "wipe the card", don't bother. This will do nothing. (Obviously if a Sky employee tells you to do this, just pretend that you have. No point in upsetting them.) Note: if somebody tells you to "reset the LNB", don't bother. Refer them to the explanation of why this is a waste of time. In any case, the procedure of "resetting the LNB" does nothing that you haven't already done by rebooting the Digibox. (Obviously if a Sky employee tells you to do this, just pretend to do it. No point in upsetting them.) What you can do is to access the "secret" Installer Setup Menu and make sure that the settings are correct. Occasionally these can get corrupted by a power cut or by small fingers playing with a Sky remote! Press [services] 401 [select] or, if you have a Sky+HD Digibox, press [services] 001 [select] If you pressed this complete sequence on the remote control (pointing it at the Digibox) you should now see the Installer Setup Menu on your TV screen. Select the LNB setup menu and reset the parameters by pressing the yellow button then save the settings. (If you live outside the UK and have a very large dish, you may have a customised "default transponder frequency". Be sure to check this and re-enter it manually if necessary.) Press [backup] three times to return to the programme. Assuming that the "no signal" fault is still present, we need to investigate further. Firstly, if it's a Thomson Sky Digibox, look no further than the ubiquitous Power Supply capacitor fault. If the Digibox has two LNB cable connections, try unscrewing them and swapping them. (This should be done only while the mains power is switched off at the wall socket.) If that makes a significant difference, then the culprit could be the relevant cable, connection or a faulty LNB on the dish arm. If your Digibox is a Sky+HD model, try setting the menu for "single input" (see Installer Setup Menu, above) and connect each cable in turn to LNB input number 1. If one cable fails to give a signal, that cable is probably faulty - or the LNB is faulty. Try swapping the cable to a different output on the LNB if it is accessible. If none of this leads to a conclusion, take your Digibox to the house of a friend, or to a satellite TV specialist, and test it on a known good dish system. If it fails to work there, it is faulty. If it works OK, the fault probably lies with your cable, connections, dish or LNB. If you are unable to check these by substitution (cable and LNB) and to check the dish alignment, then it's time to call in a professional. Send this page address - CLICK HERE - to a friend ! Return to SatCure index page Send this page address - CLICK HERE - to a friend ! Copyright ©2011 Martin Pickering Version 1.0 updated on August 9, 2011 This file may be downloaded for private and personal use but NO part of it may be published in any form without the prior permission of the author.   poor satellite signal?