Arcam Delta 150 NICAM User's Manual
Contents
1. R or will have a red plug for the right channel and a black or white plug for the left channel The audio output should be connected to your amplifier s A V or AUX inputs or to the audio input of your hi fi VCR using the supplied phono lead The very best sound quality will be obtained by using the fixed outputs However by using the variable output you can take advantage of the remote volume facility on your handset If you are connecting the Delta 150 directly into your VCR we recommend the use Pin 1 Audio out right Pin 3 Audio out left Pin 4 Audio ground Pin 8 Status CVBS Pin 17 Video ground Pin 19 CVBS out Pin 21 Shielding Delta 150 NICAM stereo TV tuner handbook If you have a VCR TV or A V amplifier which is fitted with a SCART socket you can connect it to the Delta 150 using the appropriate SCART lead With a suitable hybrid lead the outputs from the Delta 150 s SCART socket may also be fed directly to the appropriate BNC or phono sockets of a VCR TV or A V amplifier The Delta 150 s remote volume facility may be assigned to the SCART audio outputs by adjusting the small blue SCART audio Switch located immediately to the left of the main audio output sockets For fixed outputs use the tip of a ball point pen or pencil to push the switch in for variable outputs push the switch again so that it springs back flush with rear panel Composite Video Output The CVBS output2. merely of the practice of the broadcasting station L1 L2 Dual language mode LEDs The L1 LED will glow green when a dual language programme is transmitted English is always transmitted as the main language L1 and the second language is transmitted as L2 The English language will be received automatically there is no need to select it However if you wish to receive the second language simply press the NICAM button once and the second language will be received instead The L2 LED will now glow green Pressing the NICAM button a second time will return the programme to L1 When a dual language programme is transmitted the stereo LED is not illuminated Note When a dual language programme is transmitted both languages are in mono although the chosen language will automatically be heard through both loudspeakers of your TV or hi fi system It is not possible to receive English on the left channel and the second language on the right channel simultaneously Channel buttons These two buttons select any of the 8 preset channels by pressing the up Button to change sequentially from channels 1 to 8 and the down button to change sequentially from channels 8 to 1 NICAM button and LED The NICAM LED uses a traffic light sequence to indicate the status of the sound track of the programme being transmitted If the LED glows red only a mono FM programme is being transmitted This is automatically routed equally to bo
3. Cambridge Limited Pembroke Avenue Denny Industrial Centre Waterbeach Cambridge CB5 9PB England Telephone 0223 861550 and 0223 440964 Fax 0223 863384 In either case you should state clearly your name and address the date and place of purchase together with a brief description of the fault In the event of equipment being returned which after having been tested is found to comply with the published specification the manufacturers reserve the right to charge a reasonable fee for testing the equipment and for the return carriage Enquiries The manufacturers are happy to answer any queries you may have regarding the use of this equipment on the condition that this enquiry is by letter and a stamped addressed envelope is provided You should state clearly the serial number of the unit the dealer from whom it was purchased and the date of purchase THIS GUARANTEE IN NO WAY VARIES OR REMOVES A PURCHASER S STATUTORY RIGHTS Part No SHO34 JULY 1990 E amp OE Designed by Carrods Design and Communications Cambridge
4. NICAM broadcasts may be obtained from Independent Broadcasting Authority Engineering Information Crawley Court Winchester Hants SO21 20A Telephone 0962 822444 see also ORACLE p 697 and British Broadcasting Corporation Engineering Information Department Broadcasting House London WIA 1AA Telephone 071 580 4468 Extension 5040 Delta 150 NICAM stereo TV tuner handbook Arcam Delta 150 NICAM Decoder UHF TUNER RF RF VIDEO AUDIO OUT AUDIO OUT OUT IN BNC Sx SCART SOCKET VARIABLE PHONO SOCKETS O FEEDTHROUGH REMODULATOR VIDI AUDIO OUT EO OUT T au f dn FIXED SWITCHING FILTER FM AUDIO DEMODULATOR NICAM DECODER QPSK DEMODULATOR VIDEO DEMODULATOR VOLUME CONTROL TWIN 16 BIT D A CONVERTERS 4xO S DIGITAL FILTERS le FILTER CONTROLLER SWITCHES STATUS LEDs 7 SEGMENT DISPLAY POWER SUPPLY O A amp R CAMBRIDGE LTD 1990 Delta 150 NICAM stereo TV tuner handbook Technical specifications Suitable for CCIR TV system UK RF input Frequency range 471 25 855 25 MHz Channels E21 E69 Impedance 75 Ohms Input signal for onset of video noise SOdBuV NICAM drop out point 28dBuV Maximum input signal 75dBuV Locked picture and sound 20dBuV RF system characteristics AFC hold in 1 25 MHz
5. up 4 the audio leads between the Delta 150 and your amplifier are properly connected 5 the loudspeakers are connected correctly Sound from one channel only Check that 1 the balance control on the amplifier is positioned centrally 2 the audio leads are fitted correctly and the wiring is not faulty Check by interchanging left and right leads 3 both loudspeakers are connected correctly to the amplifier s output terminals Sound OK but no picture Check that 1 your TV set is selecting the correct channel 2 if using SCART SCART lead Eurocable the external input has been selected on the TV VCR 3 the video cables to the TV are plugged in and connected correctly Sound OK but poor picture Check that 1 all the aerial RF plugs are pushed home firmly in their sockets and are correctly fitted to their co axial cables If the outer braiding earth of the cable is allowed to come into contact with the central core of the cable or the centre pin of the plug this will result in a very poor picture 2 mutual interference is not being caused between TV stations broadcasting between channels 30 40 and the remodulated outputs from the Delta 150 VCR or a satellite receiver Careful retuning of some or all of the remodulators fitted to these devices may be necessary to effect a cure 3 patterning of an otherwise clear picture may be caused by 2 above or by cross modulation distortion in the tuner head of your D
6. AFC pull in 1 25 MHz UHF modulator booster Boost gain 0 dB 3 dB Carrier frequency 543 25 615 25 MHz E30 E39 Carrier level 73dBuV 3dB Test signal 2 vertical bars line sync only IF section Employs dual surface wave filter Vision frequency 39 5 MHz FM sound frequency 33 5 MHz Video section both SCART and BNC outputs Output level 1 V peak to peak into 75 Ohms Output impednce 75 Ohms Audio section Minimum load 5kOhms Nominal output level 500mV FM mono audio Frequency response 40 Hz 12 kHz 2dB Signal to noise ratio 70dB CCIR De emphasis 50uS NICAM audio Frequency response 30Hz 14kHz 1dB THD NICAM OGB reference 0 0296 Signal to noise ratio 83 dB CCIR De emphasis CCIR J17 Channel balance 1dB Dimensions Width 430mm Height 64mm Depth 265mm excluding rear panel connections Weight Net 3 1 kg Packed 4 5 kg Delta 150 NICAM stereo TV tuner handbook Guarantee for UK sales This equipment has been fully tested and a full record of these tests made before despatch from the factory Both the workmanship and the performance of this equipment are except as set out below guaranteed against defects for a period of two years from the date of purchase provided that it was originally purchased from an authorised UK dealer under a consumer sale agreement The words consumer sale shall be construed in accordance with Section 15 of the Supply Of Goods Implied T
7. Audiophile products from A amp R Cambridge EAE SE EE Delta 150 NICAM stereo TV tuner handbook Addendum The following points were omitted from the Delta 150 handbook The MUTE function on the CR50 remote control handset will only work when the VARIABLE AUDIO OUTPUT is connected When switching the Delta 150 on from the STANDBY mode the last selected channel number will appear on the front panel display If the Delta 150 is switched on with the power switch on the front panel it will default to channel 1 When the Delta 150 is connected to your hi fi VCR using a SCART or separate audio video leads it will be necessary to switch the VCR to the AUX mode in order to record stereo transmissions Please refer to the VCR s handbook Figure 1 Simple configuration using the Delta 150 s remodulated output AUDIO VARIABLE Figure 3 Configuration making use of TV set fitted with a SCART socket Erratum AUDIO VARIABLE Q Oo SCART VIDEO SCART 1 VIDEO SCART 2 Figure 4 Configuration making use of TV set fitted with two SCART sockets Please refer to these diagrams when installing your Delta 150 NOT the diagrams on page 11 These have been incorrectly labelled Please accept our apologies for any inconvenience this may have caused Delta 150 NICAM stereo TV tuner handbook Introduction The Arcam Delta 150 is a NICAM Near Instantaneously Companded A
8. ance may then be obtained as soon as the unit is switched on again Delta 150 NICAM stereo TV tuner handbook Rear panel connections POWER SETUP aie AERIAL c omose OUTPUTS VARIABLE FIXED 2i MOT sca m OO R CC 750 750 o o VARIABLE The Arcam Delta 150 NICAM stereo TV tuner is equipped of the direct output in order to avoid inadvertently adjusting the with numerous inputs and outputs to ensure compatibility with other volume level when recording a programme audio and video equipment It has also been designed so that it can be Both pairs of audio outputs may be used simultaneously used in many different configurations Please refer to the diagrams on if required page I1 The rear panel connections are as follows SCART socket e This is a 21 pin socket also known as a CENELEC Peritel or Audio outputs Euro connector It contains both audio and composite video CVBS Two pairs of audio outputs one fixed and one variable are outputs and a logic voltage CVBS status which is either OV Delta 150 provided via RCA phono connectors These sockets are marked L for the off or in standby mode or 12V Delta 150 on This can be used to left channel and R for the right channel with the left channel sockets control the TV AV switching function on certain models of TVs nearer the top of the cabinet Your connecting leads will be marked The output pins are connected as follows either L or
9. ed channel on the TV eg channel 5 and adjust the TV tuning until the test signal appears on the screen two white vertical bars on a black background The television should be tuned in to give the best picture i e good definition on the edges of the white bars and uniform brightness in the centre of the bars Test signal Now select the normal position on the set up switch and tune the Delta 150 as described on page 8 ADJ If the test signal cannot be obtained properly when tuning your TV into the remodulated output of the Delta 150 then it may be necessary to adjust this screw This will alter the channel i e frequency on which the test signal is transmitted Insert a small screwdriver through the hole in the back panel and carefully make small adjustments about Vo of a turn at a time until a clear picture is received The range of adjustment is from channels 30 to 39 It will probably be necessary to make this adjustment if you use a satellite receiver as well as a VCR in conjunction with the Delta 150 In fact it is possible that some re adjustment of the channels allocated to all these remodulated outputs may be necessary This is to ensure that they do not interfere with each other or compromise the reception of any TV transmissions broadcast within the range of channels 30 to 39 Power socket Plug the supplied mains lead into the power socket making sure it is pushed firmly home Delta 150 NICAM stereo TV t
10. elta 150 VCR or TV This is due to excessive signal levels and may usually be controlled with simple in line co axial attenuators fitted in the aerial leads between the units 4 persistent hues near the corners of your TV picture may be caused by your hi fi speakers being too close to the TV screen The speakers powerful magnets affect the colour purity of the TV tube Move the speakers further away and turn the TV on and off again in order to activate its degaussing circuits until the problem is solved Picture OK but interference crackling on NICAM sound The NICAM digital signal is very robust and can normally be received cleanly even with a weak signal which gives an unacceptably noisy picture Delta 150 NICAM stereo TV tuner handbook However the NICAM signal is susceptible to adjacent channel interference This is a particular problem when trying to pick up a distant NICAM TV transmission in the presence of a strong local transmitter which uses similar channel numbers The problem manifests itself as a severe crackling on the NICAM sound channels FM sound is unaffected and in severe cases the Delta 150 will switch back automatically from NICAM to FM sound as the NICAM signal degrades There is no cure for this except to null out the interfering signals Careful re orientation of your aerial may help as may a more directional aerial array If in doubt consult your local aerial contractor Further information on the availability of
11. er most hi fi VCRs can be used to record long duration radio programmes if you wish Please observe the following precautions when siting the Delta 150 Do not place the Delta 150 close to a source of heat e g direct sunlight a radiator or a powerful amplifier Ensure that air can circulate freely around the unit Do not place the Delta 150 directly underneath or on top of a turntable cassette deck or VCR The mains transformer of the Delta 150 may in some circumstances induce a level of background hum into the sensitive circuits of these units Do not expose the Delta 150 to rain or moisture Delta 150 NICAM stereo TV tuner handbook Connections and warming up There are several points that should be noted before using your Delta 150 In particular it is advisable to switch off your system before Connecting it up to the Delta 150 This will avoid possible damage to your loudspeakers At the very least ensure that the volume control on your amplifier is turned down or an unused input is selected Although the Delta 150 will receive broadcasts within seconds of switching on in common with other audiophile products its internal circuits take some time to fully stabilise We have found that the very best sound quality may not be obtained until the unit has had some time maybe an hour or two to warm up Note When the Delta 150 is switched to standby mode these critical circuits remain energised The optimum audio perform
12. erms Act 1973 The manufacturers can accept no responsibility for defects arising from accident misuse abuse wear and tear heglect or through unauthorised adjustment and or repair neither can they accept responsibility for damage or loss occurring during transit to or from the person claiming under this guarantee This guarantee covers both labour and parts and is transferable to subsequent purchasers but the liability of the manufacturers is limited to the cost of repair or replacement of the defective parts at the discretion of the manufacturers and under no circumstances extends to consequential loss or damage Claims under this guarantee This equipment should be packed in the original packing and returned to the dealer from whom it was purchased or failing this to any other authorised Arcam dealer If it is not possible to return the equipment by hand then it should be sent carriage prepaid by a reputable carrier If the original packing is not available replacement packing can be purchased from the manufacturers The equipment should not be sent by post DO NOT CONSIGN THE EQUIPMENT TO ARCAM UNLESS YOU HAVE BEEN SPECIFICALLY REQUESTED TO DO SO BY THE MANUFACTURER S TECHNICALSALES OR SERVICE DEPARTMENTS DO NOT UNDER ANY CIRCUMSTANCES ATTEMPT TO DISASSEMBLE THE EQUIPMENT BEFORE DESPATCH If you have any difficulty complying with these requirements please contact the manufacturers at the following address ARCAM A amp R
13. fused fit a 3 amp fuse The AC supply inlet to the Delta 150 uses a standard IEC chassis mounting plug The IEC line socket on your mains lead and the IEC plug on the Delta 150 are a tight fit before first using the Delta 150 it is therefore important to ensure that the socket is firmly pushed home into the chassis plug Under no circumstances should the Delta 150 top cover be removed unless the supply is first disconnected at the wall socket Notice 1 Please retain the carton and all packaging materials provided with this equipment so that it may be repacked correctly if it ever becomes necessary to transport the unit or to return it for service 2 If servicing is required then the equipment should be properly packed and returned to the dealer from whom it was purchased It is essential to include a covering letter giving your name and address and a brief but thorough description of the fault Positioning the Delta 150 In general we believe you will find the Delta 150 to be most useful if it is placed alongside your hi fi equipment rather than your television The various audio cables required can then be kept short to ensure the highest sound quality If you own a hi fi video cassette recorder there is also a strong case for moving this closer to your hi fi system The VCR s audio record and replay functions are then more easily integrated with the Delta 150 and the rest of your sound system Connected to your FM radio tun
14. he CR50 handset has a range of about 5 metres and should always be pointed towards the centre of the unit Take care not to obstruct the remote receiver located next to the channel number LED orthe tuner will not receive the handset s commands When using the handset hold each button down for about 1 second Do not attempt to press more than one button at a time Note 1 If the remote control becomes lost or accidentally disabled it is possible to remove the Delta 150 from its standby or mute modes by briefly switching the unit off and on again with the mains power switch 2 The two unmarked buttons on the CR50 have no function Connecting cables When dealing with high quality hi fi components such as those with the resolving power of the Delta 150 the question of connecting cables becomes of paramount importance We strongly recommend that only first class interconnect cables are used such as those from the AudioQuest range Detailed information on the AudioQuest range of video and audio interconnect cables can be obtained from your dealer or the factory As a rule of thumb you might consider budgeting to spend between 5 and 20 of the cost of your system on cable Surprising though it may seem this can be one of the most effective upgrades you can carry out We suggest that you discuss the matter of video and audio interconnect cables and loudspeaker cables with your dealer Delta 150 NICAM stereo TV tuner handboo
15. is also available on a BNC socket as well as the SCART socket described above The two outputs may be used together if required for example to feed the composite video inputs of both a VCR and a TV monitor at the same time Good quality 75 ohm co axial cable or a specialist video cable must be used for this purpose Note that teletext information is preserved on this output but not sound In general the CVBS outputs will provide better video quality than that obtained by using the remodulated RF output see below Aerial input This utilises a UK standard 75 ohm co axial socket Your existing TV aerial lead which is presently connected to your TV set or VCR should be connected to this input As with any audio or video system the best results will only be obtained with a good quality outdoor aerial correctly oriented towards the appropriate transmitter s To avoid unnecessary degradation of the signal the aerial downlead must be UHF co axial cable of the very highest quality such as low loss type RG59 We also recommend against the use of aerial preamplifiers or distribution amplifiers whenever possible as these can often introduce more problems such as noise and cross modulation distortion than they solve Your local dealer or aerial contractor should be able to provide suitable advice on all of these topics RF aerial output The Delta 150 is equipped with a male co axial RF output socket similar to those used in VCRs This perf
16. k Typical A V system connections incorporating the Delta 150 E Figure 1 Simple configuration using the Delta 150 s remodulated output Figure 2 Simple configuration connecting your TV and VCR to the Delta 150 using remodulated outputs VIDEO SCART OR BNC VIDEO SCART 1 RF RF VIDEO SCART 2 Figure 3 Configuration making use of TV set fitted with a SCART socket Figure 4 Configuration making use of TV set fitted with two SCART sockets Delta 150 NICAM stereo TV tuner handbook Faults and their likely causes No picture or sound Check that 1 the unit s are turned on and plugged into working mains outlets 2 the Delta 150 is not in the standby mode all lights off except the green power LED If so press the standby button on the remote control or briefly switch the unit off and on again with the power switch on the right side of the front panel 3 your Delta 150 and or TV has stored the TV station correctly 4 the chosen TV station is broadcasting at the time Picture OK but no sound Check that 1 the Delta 150 is not in the mute mode If so press the mute button on the remote control or briefly switch the unit on and off again with the mains power switch 2 the variable audio output of the Delta 150 if in use is turned up use the remote control 3 the amplifier is switched on set to the correct input and that the volume is turned
17. nit itself or via the supplied CR50 remote control handset This also provides remote control operation of the volume mute and standby functions Please study this handbook carefully to ensure that you get the best possible results from your Delta 150 NICAM tuner It will probably be necessary to refer to the handbooks of your video cassette recorder VCR and TV in order to find the configuration that suits you best If in doubt consult your dealer He is there to help Delta 150 NICAM stereo TV tuner handbook Installing and using your Delta 150 NICAM tuner Mains Supply The Arcam Delta 150 is supplied to work on 220V 240V AC mains A detachable mains lead is supplied with the Delta 150 The cores Of this lead are coloured in accordance with the following code Green and yellow Earth Blue Neutral Brown Live If the colours in the mains lead do not correspond with the coloured markings identifying the terminals in your plug proceed as follows y The wire which is coloured green and yellow must be connected to the terminal on the plug which is marked by the letter E or to the safety earth symbol or to the terminal coloured green and yellow The wire which is coloured blue must be connected to the terminal which is marked by the letter N or coloured black or blue The wire which is coloured brown must be connected to the terminal which is marked by the letter L or coloured red or brown Fuses If the mains plug is
18. orms two functions Firstly it provides a clean feed of all the UHF TV channels picked up by the aerial to other equipment further down the chain Therefore if the RF output is connected to the aerial inputs of your TV or VCR these units can be operated normally independent of what the Delta 150 is being used for A suitable lead is provided with the Delta 150 for this purpose Secondly the socket is connected internally to a remodulator unit This re broadcasts on or around channel 36 whichever TV station is selected on the Delta 150 n b The remodulated output includes the video signal with teletext and FM mono sound but not NICAM sound If you tune your TV to the remodulated output channel then the Delta 150 can be used for normal selection of up to 8 channels of sound and vision either directly or via its CR50 remote control handset Note The RF output does not work if the Delta 150 is turned fully off If it is left in the standby mode then the clean feed circuit will be operative The remodulated output only functions when the Delta 150 is switched fully on Delta 150 NICAM stereo TV tuner handbook Set up switch The set up normal switch works in the same way as ona VCR and is used to provide a test signal which helps tune in your TV or VCR to the remodulated output of the Delta 150 When the Delta 150 is installed switch the power on and select the set up position on this switch Select an unus
19. procedure for as many other channels as you wish up to 8 Please note that the Delta 150 employs a powerful Automatic Frequency Control AFC This circuitry is used to compensate for minor tuning drift with time and temperature The AFC function is defeated during tuning and remains defeated for approximately 1 second after a channel has been tuned S The effects of this are noticeable as the Delta 150 will pull in a slightly mistuned programme back into the optimum position This means that it is possible to obtain a good picture ona programme that is badly tuned in When tuning the programme in care should be taken to ensure that the initial effects of the AFC are minimised this is done by tuning the programme in and waiting for about 1 second for the AFC function to be enabled If the picture does not change when the AFC is enabled then the programme will be close to its optimum tuning point To achieve precise tuning you may find it helpful to use two fingers to rock between the tune up and down buttons If this is done quickly then the AFC remains disabled making it easy to see when optimum tuning i e the best picture has been achieved Delta 150 NICAM stereo TV tuner handbook Stereo LED This LED light emitting diode will glow green when the stereo flag is switched on at the transmitter You may find that the stereo LED will be illuminated even when a mono broadcast is transmitted This is not indicative of a fault
20. set To access the battery compartment slide the whole bottom panel forwards approximately 5cm 2 inches Take care to insert the batteries the right way round We recommend that the batteries are removed from the handset if the unit is not to be used for some time Remote functions The CR50 allows remote operation of the volume mute standby audio mode NICAM or FM and channel change functions Pressing the volume button increases the volume Pressing the volume button reduces the volume The system takes about 10 seconds to go from minimum to maximum volume or vice versa When the Delta 150 is first turned on the volume level is automatically set for a quiet listening level i e about 30 dB below the maximum output Pressing the mute button mutes the audio output fully Pressing the mute button a second time restores the output This is particularly useful for answering the phone or when the door bell rings Pressing the NICAM button selects the audio mode either FM or NICAM Pressing the NICAM button when a dual language programme is transmitted selects either L1 or L2 Pressing one of the 8 channel preset buttons selects the desired channel directly Pressing the standby button puts the Delta 150 into the standby mode The audio video and remodulated RF output signals are muted and all LEDs are extinguished except the power LED Pressing the standby button again restores all functions to their pre standby status T
21. th the left and right audio outputs If the LED glows amber a NICAM encoded programme is being transmitted but the tuner is switched to mono FM reception Press the NICAM button once and the LED will now glow green to indicate that the NICAM version of the transmission is being routed to the audio outputs Press the NICAM button again to revert to the mono FM mode Only if the LED glows green are you receiving and listening to a NICAM broadcast Tuning tip When tuning in the channels of your Delta 150 please observe the status of the NICAM LED If it glows amber press the NICAM button before pressing the store button so that the NICAM LED now glows green This will ensure that every time this channel is selected it will be automatically received in NICAM when transmitted Similarly if a programme which was originally available only in mono FM red LED is now available in NICAM you may find that every time this programme is selected the NICAM LED glows amber If this is the case simply press the NICAM button so that the LED now glows green and then press the store button Power switch This switches the unit on and off The LED above the switch will glow green when the unit is on Delta 150 NICAM stereo TV tuner handbook Remote control handset The Delta 150 is supplied with the CR50 remote control handset It is powered by 4 x manganese alkaline AAA cells supplied which are inserted in the base of the hand
22. udio Multiplex stereo TV tuner which offers the enthusiast near compact disc quality stereo sound from terrestrial TV broadcasts in the UK The Delta 150 is a stand alone unit built to the highest standards It is designed to be used in conjunction with a television or video system and complements the existing range of Arcam Delta hi fi separates Although there are many stereo TV sets currently available the quality of the TV s own speakers will not realise the full potential of the Delta 150 Best results will be achieved when the Delta 150 is connected to an amplifier and a pair of good quality hi fi loudspeakers We recommend positioning your television set midway between your speakers and turning down the volume on the TV set If your room layout does not permit this and your amplifier is capable of driving two or more pairs of speakers you might choose simply to place a second pair of speakers either side of the TV and use these when watching the television Your main pair of speakers can then be left in their existing location and used exclusively for the hi fi system The Delta 150 is also equipped with a high quality composite video output This can be used to enhance picture quality provided your TV has a suitable composite video input usually found on a SCART or Peritel A V socket Because of its design the Delta 150 s 8 presets can be tuned and operated in much the same way as a conventional TV set either from the u
23. uner handbook Front panel functions DELTA 150 MONITOR STANDARD TV TUNER I I CEST II II STORE TUNE STEREO L L2 CHANNEL NICAM POWER iil NICAM STEREO DIGITAL DECODING inl Store and Tune buttons up amp down These controls are not for everyday use They are needed to tune the Delta 150 to the required TV channels in your area By pressing down one of the tune buttons all the available TV channels from 21 to 69 are scanned in a period of approximately one minute after which the cycle repeats itself Most people will wish to assign BBC 1 to preset 1 on the Delta 150 BBC2 to preset 2 ITV to preset 3 and so on To do this speedily when first setting up the Delta 150 proceed as follows Use the set up procedure described on page 7 to tune your TV into the remodulated output of the Delta 150 Then use the TV normally to check the programme content of a desired station e g Channel 4 Now use the Delta 150 s channel buttons or remote control to select preset number 4 shown by the display on the front panel Switch the TV back to channel 5 displaying the Delta 150 s remodulated output and hold down one of the tune buttons on the Delta 150 until the same programme appears on the TV screen When the picture is tuned in as clearly as possible press the store button on the Delta 150 Preset number 4 on the Delta 150 is now assigned to your local Channel 4 transmitter Repeat the
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