AMSTRAD fidelity SRD400 Скачать руководство пользователя страница 7

Heat

Mount the receiver on a smooth surface so that air can go beneath. Never place it on a
carpet or cloth. If possible, put small spacers beneath it to allow better air flow
underneath.
Do not put anything on top of it. There should be at least 3 inches (75mm) clearance
above it.
Do not place it on or near anything which becomes at all warm.
Shield it from sunlight and heat from a fire.
If you must put it on top of other equipment, make a small shelf out of plywood or
hardboard, painted to match. Put spacers beneath the shelf to allow air to circulate. If the
receiver is in an enclosed cabinet you must fit a small fan to keep the air circulating.

Moisture

Don’t put drinks on your receiver. Don’t use polish on it. If you must have it looking clean
and shiny, use a water repellent spray such as WD-40™ or Duck Oil™. Spray this onto a
polishing cloth, not directly onto the receiver. Stains and marks can be removed by
applying a little windscreen De-icer spray to a rag and wiping the receiver with this.
Disconnect it from the mains electricity first!

Mains Surges

Your Receiver has an internal fuse designed to melt in the event of a power surge. You
can avoid problems by ensuring that you do not plug in a vacuum cleaner, lawnmower,
etc. near to the receiver (or unplug it first) and by unplugging it during a storm. You can
also fit a “spike suppressor” mains plug to it.

Faults

If your receiver appears to be faulty, the first thing you should do is to unplug it from the
mains power for a few minutes. If this cures the fault then it was probably caused by a
mains surge. Make sure that no wires inside the mains plug are loose – all screws tight –
and that the outer plastic sheath of the mains cable is clamped firmly where it enters the
plug.
Read the section about mains surges.

If unplugging it for a few minutes does not cure the fault then overheating may be to
blame. Try leaving the receiver unplugged for an hour or two. If this cures the fault tem-
porarily then it is suffering from an intermittent fault and must be repaired and upgraded
before it becomes worse.

No decoder messages: if unplugging the receiver from the mains for a minute does not
cure this then the decoder board may need to be replaced. However, decoders are not
cheap. See if you can find another one in a car boot sale or send yours for repair.

Page 7

Содержание fidelity SRD400

Страница 1: ...to PDF October 18 2000 All rights reserved Amstrad is a registered trademark of Amstrad plc Videocrypt is a registered trademark of Ferguson plc All other trademarks are acknowledged DISCLAIMER The information given in this booklet is given in good faith and is believed to be correct at the time of writing Neither the author nor the publisher will accept any liability for death injury loss or liti...

Страница 2: ...tener and watcher you are unlikely to notice the difference In fact compared with the average terrestrial television picture the SRD400 satellite pictures are superb So no matter whether you bought this receiver new or at a car boot sale you may be assured that you have got good value for money Now read on to find out how to use and improve on your purchase If your SRD400 is not already installed ...

Страница 3: ... equipped for stereo You can also link the Left and Right stereo outputs to the Auxiliary or CD input on your Hi Fi system It s not obvious to most people but your video recorder has a built in TV tuner In fact it is a TV except that it has no screen You can prove this by unplugging your TV set whilst recording a TV programme The video still works This is why you must tune the video recorder in to...

Страница 4: ... shown about 0960 If you overshoot simply press Tune until the number is displayed then press PRESET twice to store this frequency as channel 1 Then press the following sequence repeatedly PRESET Tune PRESET then Channel Make sure that each time you press Tune the H V light changes from on to off or vice versa if it does not change immediately press Tune again then carry on with the sequence This ...

Страница 5: ...el carries the radio that you like and tune the picture in Then press the AUDIO button to get the radio sound track and store it by pressing PRESET twice FINE TUNE This setting determines the fine tuning ofALL channels to match a particular LNB on the dish You may need to adjust it if some channels seem slightly off tune despite their frequencies being displayed correctly in the menu you will see ...

Страница 6: ...but can not be relied upon and may damage your decoder Channel Lock facilities Press H V H V Recall on the front panel You will see four dashes in the display Use the handset to enter a four digit number Press Recall The receiver will now be locked on the currently selected channel If you unplug the power cord then plug it back in the receiver will remain locked in Standby To unlock the receiver P...

Страница 7: ...es Your Receiver has an internal fuse designed to melt in the event of a power surge You can avoid problems by ensuring that you do not plug in a vacuum cleaner lawnmower etc near to the receiver or unplug it first and by unplugging it during a storm You can also fit a spike suppressor mains plug to it Faults If your receiver appears to be faulty the first thing you should do is to unplug it from ...

Страница 8: ...lacing the 630mA fuse inside your receiver If the fuse melts again then you probably have a short circuit in your cable screw connectors If the fuse is intact but you can measure no LNB voltage use a volt meter with one test probe held on the cable input connector thread and one touching the centre then the 6R8 resistor may be damaged and need replacing Can t Tune receiver to TV Sometimes the rece...

Страница 9: ...display three was chosen as being ideal in that it lights only for channels 40 through 48 see Fig 1 The initial enthusiasm was dampened when a glance at the circuit showed that the LED segments are multiplexed They are actually pulsed by the display driver IC which in turn receives serial data from the microcontroller that would be difficult to interpret In addition the common cathode of each seve...

Страница 10: ... collector is point 2 and IC151 pin 16 is point 3 The 12 volts is derived from point 4 on the small regulator board which is bolted to the heatsink in the SRD400 A minor drawback of the system is that the chosen segment will light while you are tun ing the receiver To overcome this nuisance disconnect the wire and switch the ADX ON while tuning Once the channels are tuned and stored switch the ADX...

Страница 11: ...e sure to include your e mail address so I can say thanks o See our web sites at http www satcure co uk Sky Digibox only and http www netcentral co uk satcure Packed with FAQ information about common faults and cures for faulty satellite receivers and decoders Repair kits upgrade kits spare parts surplus compo nents plus links to other satellite information sites Also Valve tube Audio stuff Electr...

Отзывы: