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User Instructions for the
Amstrad Fidelity SRD400
© SatCure 1994
No part of this publication may be copied by any means, stored in a retrieval system or
transmitted in any form without the prior consent of the copyright holder.
First edition 1994
Converted 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 litigation which arises directly or indirectly as a result of the use of
information published in this booklet. It is the responsibility of the reader to check the
facts. In addition, it is recommended that work on satellite receivers be carried out only by
qualified personnel.
Page 1
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Summary of Contents for AMSTRAD fidelity SRD400
- Page 1 First edition 1994 Converted 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.
- Page 2 Introduction Amstrad plc made it possible for the “man in the street” to purchase a low-cost satellite receiver in order to watch satellite TV programmes from the Astra satellite designated “Astra 1A”. The first receiver produced was the 16 channel SRX100 which did not have an internal decoder.
- Page 3 So the line-up is as follows: • TV aerial connected into the satellite receiver “RF in” or “TV in”. • Satellite receiver “RF out” connected to video recorder “RF in” (or use a SCART – SCART cable from satellite receiver “SCART/ PERITEL” to the appropriate SCART socket on the video recorder).
- Page 4 whatever number you wish). To do this, select the video recorder channel with your TV remote and select a satellite channel with the satellite remote. Now follow the tuning instructions for your video recorder and tune it to see the satellite channel on the TV. (It is easier if you flip the TEST SIGNAL switch ON in order to see the test bars on the TV screen when the video is tuned).
- Page 5 appropriately polarised signal, reflected from the dish, according to the voltage it receives. In standby, the receiver turns off the LNB voltage. You will not need to change this setting for pre-programmed Astra channels but you may need to change it if you customise any channels to receive broadcasts from another satellite.
- Page 6 The video output comes from from the Baseband Phono socket at the rear of the receiver. For D2Mac decoders, a standard "D" to SCART lead will not work without modification. Modify a standard lead for your SRD400 as follows: Remove the cover from the Scart plug. Locate pin 19 in the plug and cut the wire. Solder a wire to this wire to extend it out of the socket and replace the cover.
- Page 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.
- Page 8 Sparkly pictures can have a multitude of causes. If sparklies are both black and white then a poor signal is the cause. The tuner module may be at fault but it is possible that the dish has moved out of line or the cable or LNB are faulty. Of course, very heavy rain or snow can also cause this fault, as can anything obstructing the dish (such as a tree).
- Page 9 Amstrad SRD400 Channel Expander Control The Amstrad SRD400 satellite receiver has proved to be a reliable workhorse since its introduction over six years ago. Despite its technological age and 48 channel limitation, it can still give excellent sound and picture quality. In fact the only real limitation is its tun- ing range.
- Page 10 Fig.2 Circuit The few components required cost very little and can easily be assembled onto a piece of “Veroboard”™ or similar. The complete assemby should be kept small. After attaching wires, insulate it and tuck it away beneath the decoder board. The sketch of the SRD400 front panel board, Fig.3, shows where to solder the three wires.
- Page 11 This system will also work for the Amstrad SRX200, the later version of which has 48 channels. You will have to hunt for the 12 volt supply (it’s on one of the ICs near the rear of the receiver) but the front panel connections are very similar.
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