Arcam DT91 Car Stereo System User Manual
Contents
1. Data ETR W STR Start transmission 0x21 CC Command code the code for the command DL Data length the number of data items following this item excluding the ETR Data the parameters for the command ETR End transmission OxD Each response by the DT91 shall be at least six bytes long in the following format STR RC AC DL Data ETR STR Start transmission 0x21 RC Reply code command code AC Answer code answer code see below DL Data length the number of data items following this item excluding the ETR Data the information associated with this response ETR End transmission OxD Note that the DT91 shall transmit messages whenever its status changes State changes as a result of other inputs It is possible that the state of the DT91 may be changed as a result of user input via the front panel buttons or via the IR remote control Changes resulting from these inputs shall be relayed to the RC using the appropriate message type as they occur For example if the user changed the front panel display brightness using the DISP button on the remote control a display message defined below would be sent to the RC A similar action would be taken for all other state changes Answer codes The following answer codes are defined P Command OK 0x1 The command has been accepted and processed completely P Command Failed 0x0 The command has failed for some reason DT91 E 11 DT91 E2. Di If the current source is FM 0x00 Set the display to show frequency 0x02 Set the display to show RDS info 0x03 Set the display to show prog type If the current source is DAB 0x00 Set the display to show data rate 0x01 Set the display to show sig strength 0x02 Set the display to show DLS info 0x03 Set the display to show prog type 0x01 Set the display to show sig strength RESPONSE Byte Description RC OxOC Reply Code AC Answer code DL 0x01 Data length Di Response The new display setting COMMAND Byte Description CC 0x13 Command code DL 0x01 Data length Di 0x1 0x10 The selected preset RESPONSE Byte Description RC 0x13 Reply Code AC Answer code DL Ox1 Data length Dn Response The selected preset COMMAND Byte Description CC OxDE Command code DL 0x01 Data length Di DAB only OxFO Select the next DAB station OxF1 Select the previous DAB station DAB or FM OxF3 Request the current station name RESPONSE Byte Description RC OxDE Reply Code AC Answer code DL Data length Dn Response The service label of the radio station in ASCII characters DT91 E 13 DT91 E 14 Radio station information Informations sur la station radio Radiosenderinformationen Zenderinformatie GB Request information on the current radio station CF Demande des inf
3. 0x00 Stereo 0x01 Joint stereo 0x02 Dual mono 0x03 Mono Response to the DAB data rate request 0x00 OxEO 0 224kb s data rate Response to the signal strength request 0x00 0x10 signal strength D3 Response to the FM frequency request kHz 10 of current frequency Response to the DAB MPEG mode request 0x00 Response to the DAB data rate request 0x00 Response to the signal strength request 0x00 COMMAND Byte Description CC OxE4 Command code DL 0x01 Data length Di OxFO Increment the tuned frequency OxF1 Decrement the tuned frequency OxF3 Request the current tuned frequency RESPONSE Byte Description RC OxE4 Reply Code AC Answer code DL 0x02 Data length Di MHz of current frequency D2 kHz 10 of current frequency Radio programme type Type de programme radio Erh hen Verringern der FM Frequenzauswahl Radioprogramma type GB Request information on the current station programme type C Demande des informations sur le type de programme actuellement mis CDD Abfragen von Informationen zum aktuellen Senderprogrammtypus D Vragen naar informatie over het programmatype van de huidige zender Examples Exemple Beispiel Voorbeeld EB Command response sequence to request the programme type where the programme type is POP MUSIC CF S quence de commande r ponse pour demander le type de programme le type de programme tant POP MUSIC CDD Befehls
4. R ckmeldesequenz zum Abfragen des Programmtypus der Programmtypus ist POP MUSIC D Opdracht en responsreeks om te vragen naar het programmatype waarbij het programmatype POP MUSIC is COMMAND 0x21 OxE6 0x01 OxF3 0x0D RESPONSE 0x21 OxE6 0x01 0x09 0x50 Ox4F 0x50 0x20 Ox4D 0x55 0x53 0x49 0x43 0x0D COMMAND Byte Description CC OxE6 Command code DL 0x01 Data length Di OxF3 Request programme type RESPONSE Byte Description RC OxE6 Reply Code AC Answer code DL Data length Dn Response The programme type of the selected station in ASCII characters Request RDS DLS information Demande d informations RDS DLS Abfragen von RDS DLS Informationen Vragen naar RDS DLS informatie Request RDS DLS FM DAB information from the current radio station CF Demande des informations RDS DLS FM RAN sur la station radio actuelle CDD Abfragen von RDS DLS Informationen FM DAB vom aktuellen Radiosender D Vraag naar RDS DLS FM DAB informatie van de huidige zender Examples Exemple Beispiel Voorbeeld Command response sequence to request the RDS DLS information where the information is Playing your favourite music CF S quence de commande r ponse pour demander les informations RDS DLS les informations tant Playing your favourite music Ecouter votre musique favorite CDD Befehls R ckmeldesequenz zum Abfragen der RDS DLS Informationen
5. 12 Power Alimentation Betrieb Stroom GB Change the stand by state of the DT91 Permet de modifier l tat de veille du DT91 CDD ndern des Stand by Zustands des DT91 D De Stand by status van de DT91 wijzigen Example Exemple Beispiel Voorbeeld Command response sequence to bring the DT91 out of standby CF S quence de commande r ponse pour d sactiver le mode veille du DT91 CDD Befehls R ckmeldesequenz zur Aktivierung des im Stand by Modus befindlichen DT91 D Opdracht en responsreeks om de DT91 uit stand by te halen COMMAND 0x21 0x00 0x01 0x01 0x0D RESPONSE 0x21 0x00 0x01 0x01 0x01 0x0D Command Specifications Sp cifications des commandes Befehlsspezifikationen Opdrachtspecificaties COMMAND Byte Description CC 0x00 Command code DL 0x01 Data length Di 0x00 Enter stand by state 0x01 Power on OxF2 Toggle power state OxF3 Request power state RESPONSE Byte Description RC 0x00 Reply Code AC Answer code DL 0x01 Data length Di Response 0x00 The DT91 is in stand by state 0x01 The DT91 is powered on Source selection S lection de la source Quellenauswahl Bronkeuze GB Switch between DAB and FM Bascule entre les modes RAN et FM Wechsel zwischen DAB und FM D Schakel om naar DAB en FM Example Exemple Beispiel Voorbeeld EB Command response sequence to switch to FM CF S quence de com
6. COMMAND Byte Description cc OxED Command code DL 0x01 Data length Di OxF3 Request protocol version RESPONSE Byte Description RC OxED Reply Code AC Answer code DL 0x02 Data length Di 0x01 Major revision D2 Minor revision DT91 E 15
7. maximum data rate supported by the DT91 is 224kbps but most radio stations are broadcast at 128kbps or less The MPEG mode of the station indicates whether the station is broadcast in stereo or mono Signal quality The signal quality meter is a simple bargraph that gives a quick visual guide to reception quality For DAB transmissions it is an inverse measure of the Viterbi error rate with zero errors at full scale all segments are lit and 500 errors second with all segments off For FM transmissions the bar graph shows a simple analogue measurement of signal strength Secondary services DAB only Primary services can have one or more secondary services attached to them These tend to be temporary sporting events such as football matches for example may be broadcast as secondary services Services that have secondary services attached to them are indicated by a gt symbol Turning the rotary selector clockwise will then reveal these services The secondary services themselves are indicated by a lt symbol You need to select a main service in order to see if there are secondary services attached Note that only primary services can be attached to a preset The CR 389D remote control FM DAB MENU Use this button to switch between FM and This button has the same function as the DAB mode The LED above the FM DAB MENU button on the front panel of the tuner button is lit briefly when the button is pressed to
8. on and off When the tuner is switched on the status LED is green SEARCH STORE 1 8 STORE 9 16 In DAB mode pressing SEARCH scans for new DAB radio stations See Searching for radio stations DAB for These buttons are used when specifying a preset location 1 8 or 9 16 to store a radio station See Programming a preset Control knob In DAB mode rotate the DAB FM Switches between DAB control knob to cycle through stations until the one you wish to listen to is displayed In FM and FM mode DISPLAY MODE Press this button to change radio station for further information further information mode rotating the control knob changes the tuning frequency the type of information shown on the display such as scrolling text or signal strength Searching for radio stations DAB When using the DAB tuner section for the first time you should perform a search to find the available services in your area You may also wish to repeat the search periodically to discover if any new ensembles i e groups of services have gone on air or if you move the tuner to a different area To perform a search Ensure that the DT91 is in DAB mode by pressing the DAB FM button until DAB is shown on the display then press SEARCH or MENU the display shows DAB Setup Press SELECT to scan Press SELECT to start searching for new stations The current search frequency is sh
9. range Sensitivity IHF Signal to noise ratio THD n Aerial Connector Impedance Remote control interface Remote bus input Serial port General Supply voltage Power consumption Size Weight Supplied accessories E amp OE Technical specifications SPDIF co axial to gold plated phono sockets SPDIF optical to TOSLINK 48kHz DAB mode 32kHz FM mode 75 unbalanced Two pairs of stereo outputs to gold plated phono sockets 2 4Vrms at OdB FS DAB mode 0 9Vrms at full modulation FM mode 1009 6002 20Hz 20kHz 174 240MHz Band III 1452 1492MHz L band better than 91dBm typically 97dBm 224kbits s at MPEG protection level 3 87 108MHz 3yV typical 65dB at full modulation 1kHz 0 1 at full modulation 1kHz F type 500 36kHz modulated RC5 on 3 5mm mono jack socket RS232 to 9 way male D connector DTE pin out Remote control codes given in table on following page 115 or 230Vac set by rear panel voltage selector switch lt 20W W435 x D320 x H83mm 3 6kg net 6kg packed CR 389D remote control two x AAA batteries Mains lead Indoor ribbon aerial Note All specification values are typical unless otherwise stated Continual improvement policy Arcam has a policy of continual improvement for its products This means that designs and specifications are subject to change without notice DT91 E 9 Remote control codes The following table gives the IR commands accepted by the
10. D Byte Description CC 0x0A Command code DL 0x01 Data length Di OxFO Increase the display brightness OxF1 Decrease the display brightness OxF3 Request current display brightness RESPONSE Byte Description RC Ox0A Reply Code AC Answer code DL 0x01 Data length Di Response The new brightness level 0x00 off 0x02 full brightness Display information type Affichage du type d informations Display Informationstypus Display informatie type GB Set the display information type D finit l affichage du type d informations CDD Einstellen des Display Informationstypus ND Instellen van het display informatie type Example Exemple Beispiel Voorbeeld EB Command response sequence to set the display text to show the programme type CF S quence de commande r ponse permettent de r gler l affichage du texte pour afficher le type de programme CDD Befehls R ckmeldesequenz zum Einstellen des Display Texts f r die Anzeige des Programmtypus D Opdracht en responsreeks zodat de display tekst het programmatype weergeeft COMMAND 0x21 0x0C 0x01 0x03 0x0D RESPONSE 0x21 0x0C 0x01 0x01 0x03 OxOD Preset selection Pr r glage de station Preset Auswahl Selecteren van een voorinstelling Select a preset radio station CF M morise une station radio pr r gl e CDD Ausw hlen eines voreingestellten Radiosenders ND Selecteer een vooringestelde zend
11. DT91 The system code for the DT91 is 17 in common with other Arcam tuners Power commands Command Decimal Code Power on E23 Power off 124 Tuner control commands Command Decimal Code Select DAB 126 Select FM 127 MENU 61 or 125 DISP 18 or 71 1 9 dvor 9f 2 10 2 or 92 3 11 310m93 4 12 4 or 94 5 13 5 or 95 6 14 6 or 96 7 15 7105197 8 16 8 or 98 MODE 37 or 121 33 or 78 gt 321077 BAND 50 or 87 Guarantee Worldwide Guarantee This entitles you to have the unit repaired free of charge during the first two years after purchase at any authorised Arcam distributor provided that it was originally purchased from an authorised Arcam dealer or distributor The manufacturer can take no responsibility for defects arising from accident misuse abuse wear and tear neglect 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 the guarantee The warranty covers Parts and labour costs for two years from the purchase date After two years you must pay for both parts and labour costs The warranty does not cover transportation costs at any time Claims under guarantee This equipment should be packed in the original packing and returned to the dealer from whom it was purchased or failing this directly to the Arcam distributor in the country of residence It should be sent carriage prepaid by a reputable carrier n
12. HANDBOOK MANUEL HANDBUCH HANDLEIDING Arcam DT91 digital radio tuner Tuner radio num rique DT91 Arcam Digitaler Radiotuner Arcam DT91 Arcam DT91 digitale radio tuner DT91 Safety guidelines DT91 E 2 ATTENTION to qualified service personnel servicing instructions in the literature accompanying the product insert the plug fully into the socket CAUTION A SHOCK DO NOT OPEN NE PAS OUVRIR CAUTION To reduce the risk of electric shock do not remove cover or back No user serviceable parts inside Refer servicing WARNING To reduce the risk of fire or electric shock do not expose this apparatus to rain or moisture The lightning flash with an arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of uninsulated dangerous voltage within the product s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance CAUTION In Canada and the USA to prevent electric shock match the wide blade of the plug to the wide slot in the socket and Important safety instructions This product is designed and manufactured to meet strict quality and safety standards However you should be aware of the following installation and operation precautions 1 Take heed of warn
13. election CF Incr mente d cr mente la s lection de la fr quence FM CDD Erh hen Verringern der FM Frequenzauswahl D Selecteren van hogere lagere FM frequentie Example Exemple Beispiel Voorbeeld Command response sequence to decrement the station frequency where the new frequency is 97 9MHz CF S quence de commande r ponse pour d cr menter la fr quence de la station la nouvelle fr quence tant 97 9 MHz CDD Befehls R ckmeldesequenz zum Verringern der Senderfrequenz Die neue Frequenz ist 97 9 MHz D Opdracht en responsreeks om een lagere zenderfrequentie te selecteren met als nieuwe frequentie 97 9Mhz COMMAND 0x21 OxE4 0x01 OxF1 0x00 0x0D RESPONSE 0x21 OxE4 0x01 0x02 0x61 Ox5A 0x0D COMMAND Byte Description GE OxDF Command code DL 0x02 Data length D1 OxF3 Request station information D2 0x00 Request the station frequency FM only 0x01 Request the station signal strength 0x02 Request the station MPEG mode 0x04 Request the station data rate RESPONSE Byte Description RC OxDF Reply Code AC Answer code DL 0x03 Data length Di 0x00 Message contains station freq 0x01 Message contains signal strength 0x02 Message contains MPEG mode 0x03 Message contains data rate D2 Response to the FM frequency request MHz of current frequency Response to the DAB MPEG mode request
14. ening preferences and the local conditions If you listen exclusively to FM transmissions for example and the FM signal strength is strong in your area then a simple omni directional aerial mounted in your loft or on your roof may be sufficient Listening to DAB in a weak signal area will require a high gain roof mounted aerial For the best reception of both DAB and FM signals an aerial combiner box may be required as shown in the diagram above This combines the signals received by two aerials one for DAB the other for FM into one cable that then connects to the DT91 If an aerial combiner is not used the single aerial chosen for both DAB and FM reception may not give optimum performance in some regions For the best advice we recommend that you contact your local Arcam dealer or an aerial installation expert DT91 E 5 Using your tuner Front panel controls Preset station selection These buttons allow quick selection of up to 16 preset radio stations For a preset between 1 and 8 press and release the appropriate button for a preset between 9 and 16 press and hold the appropriate button MENU Opens the configuration menu for the DT91 See the sections Searching for radio stations DAB and Searching for radio stations FM for further information MENU e SELECT e SELECT The SELECT button confirms an action within the configuration menu POWER This switches the tuner
15. er Example Exemple Beispiel Voorbeeld Command response sequence to select preset 12 CF S quence de commande r ponse pour s lectionner la station pr r gl e 12 CDD Befehls R ckmeldesequenz zur Auswahl der Voreinstellung 12 D Opdracht en responsreeks om voorinstelling 12 te selecteren COMMAND 0x21 0x13 0x01 OxOC OxOD RESPONSE 0x21 0x13 0x01 0x0C OxOD Station selection S lection d une station RAN DAB Senderauswahl Selecteren van een DAB zender Increment decrement the DAB station selection CF Incr mente d cr mente la pr s lection de station RAN CDD Erh hen Verringern der DAB Senderauswahl ND Seleceteren van volgende vorige DAB zender Example Exemple Beispiel Voorbeeld Command response sequence to increment the DAB station selection where the new station is called DAB STATION 2 CF S quence de commande r ponse pour incr menter la s lection de station RAN la nouvelle station s appelant alors DAB STATION 2 CDD Befehls R ckmeldesequenz zur Erh hung der DAB Senderauswahl Der neue Sender hei t DAB STATION 2 D Opdracht en responsreeks voor het selecteren van de volgende DAB zender waarbij de nieuwe zender DAB STATION 2 wordt benaamd COMMAND 0x21 OxDE 0x01 OxFO 0x0D RESPONSE 0x21 OxDE 0x01 OxOD 0x44 0x41 0x42 0x20 0x53 0x54 Ox41 0x54 0x49 Ox4F Ox4E 0x20 0x32 0x0D COMMAND Byte Description CC 0x0C Command code DL 0x01 Data length
16. erviced by qualified service personnel when A the power supply cord or the plug has been damaged or B objects have fallen or liquid has spilled into the appliance or C the appliance has been exposed to rain or D the appliance does not appear to operate normally or exhibits a marked change in performance or E the appliance has been dropped or the enclosure damaged Safety compliance This product has been designed to meet the IEC 60065 international electrical safety standard Contents Using this handbook This handbook has been designed to give you all the information you need to install connect set up and use the Arcam DiVA DT91 The remote control handset supplied with the equipment is also described It may be that the DT91 has been installed and set up as part of your Hi Fi installation by a qualified Arcam dealer In this case you may wish to skip the sections of this handbook dealing with installation and setting up the unit and move directly to the sections dealing with using the player Use the contents list to guide you to these sections Safety Safety guidelines are set out on page 2 of this handbook Many of these items are common sense precautions but for your own safety and to ensure that you do not damage the unit we recommend that you read them This is a class 1 product and requires an earth connection ere lte ET Me E 2 Important safety instructions E Safetvacomplia
17. es wird Playing your favourite music angezeigt D Opdracht en responsreeks om naar de RDS DLS informatie te vragen met als informatie Playing your favourite music COMMAND 0x21 OxE7 0x01 OxF3 0x0D RESPONSE 0x21 OxE7 0x01 0x1C 0x50 Ox6c 0x61 0x79 0x69 Ox6E 0x67 0x20 0x79 Ox6F 0x75 0x72 0x20 0x66 0x61 0x76 Ox6F 0x75 0x72 0x69 0x74 0x65 0x20 Ox6D 0x75 0x73 0x69 0x63 Ox0D COMMAND Byte Description CC OxE7 Command code DL 0x01 Data length Di OxF3 Request RDS DLS information RESPONSE Byte Description RC OxE7 Reply Code AC Answer code DL Data length Dn Response The RDS DLS information of the selected station in ASCII characters Up to 128 characters may be returned Protocol version Version du protocole Protokollversion Protocol versie GB Request the RS232 protocol version of the DT91 CE Demande la version du protocole RS232 du DT91 CDD Abfragen der RS232 Protokollversion des DT91 D Vraag naar de RS232 protocol versie van de DT91 Examples Exemple Beispiel Voorbeeld EB Command response sequence to request the protocol version CF S quence de commande r ponse pour demander la version du protocole CDD Befehls R ckmeldesequenz zum Abfragen der Protokollversion D Opdracht en responsreeks om naar de protocol versie te vragen COMMAND 0x21 OxED 0x01 OxF3 0x0D RESPONSE 0x21 OxED 0x01 0x02 0x01 0x00 OxOD
18. ical solvents for cleaning We do not advise the use of furniture cleaning sprays or polishes as they can cause indelible white marks if the unit is subsequently wiped with a damp cloth 9 Power sources Only connect the appliance to a power supply of the type described in the operating instructions or as marked on the appliance This is a class 1 appliance and must be earthed 10 Power cord protection Power supply cords should be routed so that they are not likely to be walked on or pinched by items placed upon or against them paying particular attention to cords and plugs and the point where they exit from the appliance 11 Grounding Ensure that the grounding means of the appliance is not defeated 12 Power lines Locate any outdoor antenna aerial away from power lines 13 Non use periods If the unit has a stand by function a small amount of current will continue to flow into the equipment in this mode Unplug the power cord of the appliance from the outlet if left unused for a long period of time 14 Abnormal smell If an abnormal smell or smoke is detected from the appliance turn the power off immediately and unplug the unit from the wall outlet Contact your dealer immediately 15 Servicing You should not attempt to service the appliance beyond that described in this handbook All other servicing should be referred to qualified service personnel 16 Damage requiring service The appliance should be s
19. ings and instructions You should read all the safety and operating instructions before operating this appliance Retain this handbook for future reference and adhere to all warnings in the handbook or on the appliance 2 Water and moisture The presence of electricity near water can be dangerous Do not use the appliance near water for example next to a bathtub washbowl kitchen sink in a wet basement or near a swimming pool etc 3 Object or liquid entry Take care that objects do not fall and liquids are not spilled into the enclosure through any openings Liquid filled objects such as vases should not be placed on the equipment 4 Ventilation Do not place the equipment on a bed sofa rug or similar soft surface or in an enclosed bookcase or cabinet since ventilation may be impeded 5 Heat Locate the appliance away from naked flames or heat producing equipment such as radiators stoves or other appliances including other amplifiers that produce heat 6 Climate The appliance has been designed for use in moderate climates 7 Racks and stands Only use a rack or stand that is recommended for use with audio equipment If the equipment is on a portable rack it should be moved with great care to avoid overturning the combination 8 Cleaning Unplug the unit from the mains supply before cleaning The case should normally only require a wipe with a soft damp lint free cloth Do not use paint thinners or other chem
20. ly voltage agrees with the voltage setting 115V or 230V indicated on the rear panel of the unit If your mains supply voltage or mains plug is different or you require a new lead please consult your Arcam dealer PLUGGING IN Push the plug IEC line socket of the power cable supplied with the unit into the socket POWER INLET in the back of the unit Make sure it is pushed in firmly DT91 E 4 PROGRAM DIGITAL OUT RS232 REMOTE IN Remote control in If you are using this tuner with an amplifier that also features a remote bus such as the Arcam DiVA AVR300 you can connect the REMOTE OUT of the amplifier to the REMOTE IN of the tuner using a 3 5mm jack lead This allows the tuner to be positioned out of sight while still offering remote control since commands are passed through the amplifier It can also be used to route control signals for multi room use The remote control input requires a mono 3 5mm jack with the tip active and the sleeve grounded The remote control signals must be in modulated RC5 format with a voltage level of between 5V and 12V A AERIAL INPUT Aerial input socket AUDIO OUTPUTS L Analogue audio outputs The coaxial cable from the aerial should be fitted with a 50Q F type screw connector Connect this to the aerial socket on the back of this tuner pushing the pin into the centre of the socket then screwing on the cover t
21. mande r ponse pour basculer en mode FM CDD Befehls R ckmeldesequenz zum Umschalten auf FM D Opdracht en responsreeks om naar FM over te schakelen COMMAND 0x21 0x01 0x01 0x01 OxOD RESPONSE 0x21 0x01 0x01 0x01 0x01 OxOD Display brightness Luminosit de l affichage Helligkeit des Displays Helderheid van de display GB Set the display brightness CF D finit la luminosit de l affichage CD Einstellen der Helligkeit des Displays ND Instellen van de display helderheid Example Exemple Beispiel Voorbeeld EB Command response sequence to dim the display one level where the result is that the display brightness is at level 1 CF S quence de commande r ponse pour att nuer la luminosit de l affichage d un cran savoir la r gler au niveau 1 CDD Befehls R ckmeldesequenz zum Dimmen des Displays um eine Stufe Die Helligkeit des Displays ist anschlieBend auf Stufe 1 D Opdracht en responsreeks om het display n niveau te dimmen met als resultaat dat de display helderheid zich nu op niveau 1 weergeeft COMMAND 0x21 0x0A 0x01 OxF1 OxOD RESPONSE 0x21 Ox0A 0x01 0x01 0x01 OxOD COMMAND Byte Description CC 0x01 Command code DL 0x01 Data length D1 0x01 FM 0x02 DAB OxF3 Request current source RESPONSE Byte Description RC 0x01 Reply Code AC Answer code DL 0x01 Data length Di Response Source values as given above COMMAN
22. ncemm EHE E 2 UsinggitnaisshiamcbooKeee eee eee E BOSItIONIN ON eut elt E 4 Connecting UDe ranr areas rece RC E 4 TnstallatiQr eerte eme Ioue ero ennen E 4 Settingutpktheraeni a FA E 5 Using your tuner EEE EE ede ne pere Front panel controls Searching for radio stations DAB E 6 Search for radio stations FM E 7 Programming a preset radio station E Changing the display mode E 7 iie CR S89D remote cono EE E 8 el Deler E 9 Renmiote controlicodesp eere eee eee E 10 EE Tee E 10 Online registration eee EE E 10 Appendix Serial programming interface Ell Introduction nennen Ee Command and response formats Ee Command Specifications E 12 DT91 E 3 Installation Positioning the unit W Place the DT91 on a level firm surface avoiding direct sunlight and sources of heat or damp P Avoid placing the DT91 on top of a power amplifier or other source of heat W The DT91 may run warm during normal operation so avoid placing the DT91 in an enclosed space such as a bookcase or closed cabinet unless there is good ventilation W Make sure the remote control receiver in the centre of the front panel display is unobstructed otherwise remote control will be unreliable If line of sight is impractical a remote control repeater can be used with the rear panel connector see below P Avoid placing a record deck on top of this unit Reco
23. o lock in place Take care not to over tighten the F connector finger tighten only do not use tools as this may damage the circuit board behind the connector See Setting up the aerial for further information on the aerial type to use Two pairs of stereo analogue outputs are provided by the DT91 both of which provide the same signals Connect one pair of these outputs to your amplifier using a suitable stereo phono cable The second output pair may be connected to some other audio device as desired such as a cassette deck Note that interconnecting cables are not supplied with this tuner We recommend the use of high quality screened cables since inferior quality cables will degrade the overall quality of your system Use only cables that are designed for an audio application as other cables will have different impedance characteristics that will degrade the performance of your system for example do not use cabling intended for video use to carry audio signals All cables should be kept as short as is practically possible It is good practice when connecting your equipment to make sure that the mains power supply cabling is kept as far away as possible from your audio cables This avoids unwanted noise in the audio signals Setting up the aerial Your new Arcam tuner is capable of superb reception but only if it is receiving a good quality transmission signal If the transmission signal is strong in yo
24. ormations sur la station radio actuelle DD Abfragen von Informationen zum aktuellen Radiosender D Vraag naar informatie over de huidige zender Example Exemple Beispiel Voorbeeld GB Command response sequence to request the station frequency where the source is FM and the frequency is 105 2MHz CF S quence de commande r ponse pour demander la fr quence de la station la source tant FM et la fr quence 105 2 MHz CDD Befehls R ckmeldesequenz zum Abfragen der Senderfrequenz Die Quelle ist FM analog und die Frequenz 105 2 MHz ND Opdracht en responsreeks voor het vragen naar de zendfrequentie met als bron FM en de frequentie 105 2Mhz COMMAND 0x21 OxDF 0x02 OxF3 0x00 0x0D RESPONSE 0x21 OxDF 0x01 0x03 0x00 0x69 0x14 0x0D Example Exemple Beispiel Voorbeeld GB Command response sequence to request the signal strength where the current signal strength is 10 CF S quence de commande r ponse pour demander la puissance du signal la puissance du signal actuelle tant de 10 CDD Befehls R ckmeldesequenz zum Abfragen der Signalst rke Die aktuelle Signalst rke ist 10 D Opdracht en responsreeks om de signaalsterkte na te vragen waarbij de signaalsterkte 10 is COMMAND 0x21 OxDF 0x02 OxF3 0x01 0x0D RESPONSE 0x21 OxDF 0x01 0x02 OxOA 0x00 0x0D FM frequency selection S lection de la fr quence FM FM Frequenzauswahl Selecteren van FM frequentie GB Increment decrement the FM frequency s
25. orresponding button To select presets 9 to 16 press and hold the corresponding button for two seconds Changing the display mode The bottom line of the display can be set to different modes programme type transmission frequency dynamic label scrolling text data rate showing service data rate and stereo mono mode and signal quality a bar graph Press DISPLAY MODE on the front panel or MODE on the remote control to cycle through these display options Note that the display modes for DAB and FM are set independently Programme type The programme type label is a short description of the type of programme being transmitted and if selected is displayed below the station name Transmission frequency FM only The transmission frequency setting shows the station name if available together with the frequency the station is being transmitted on This can be useful in areas where the same station is transmitted on different frequencies in ensuring that the correct transmission of the station is selected Dynamic label DAB RDS FM This is a 128 character block of scrolling text used by most broadcasters to display programme information such as song titles useful phone numbers and website addresses Data rate DAB only The data rate setting allows the data rate of the station together with the MPEG mode to be seen The data rate is given in kbits second with a higher data rate indicating better audio quality The
26. ot by post No responsibility can be accepted for the unit whilst in transit to the dealer or distributor and customers are therefore advised to insure the unit against loss or damage whilst in transit For further details contact Arcam at Arcam Customer Support Department Pembroke Avenue Waterbeach CAMBRIDGE CB5 9QR England Problems If your Arcam dealer is unable to answer any query regarding this or any other Arcam product please contact Arcam Customer Support at the above address and we will do our best to help you On line registration You can register your Arcam product on line at www arcam co uk DT91 E 10 Appendix Serial programming interface Introduction This section of the document describes the remote control protocol for controlling the DT91 via the RS232 interface Conventions W The remote controller is referred to as the RC P All values in this section are hexadecimal values unless otherwise specified Data transfer format W Transfer rate 19 200bps W 1 start bit 8 data bits 1 stop bit no parity no flow control Command and response formats Communication between the RC and the DT91 takes the form of sequences of bytes with all commands and responses having the same basic format Communication between the two is full duplex The DT91 shall always respond to a received command Each transmission by the RC shall be at least five bytes long in the following format STR CC DL
27. own on the display as the search progresses A complete search may take three minutes or so to complete You cannot cancel a search once started If no service is found after the search then either your aerial is inadequate or you may be outside of the area covered by DAB broadcasts Please contact your Arcam dealer for further information or advice Selecting a service Turn the rotary controller or press gt or 4 on the remote control to work through the available stations and to choose the one you wish to listen to The service displayed will be selected automatically after a delay of about two seconds Deleting services Under normal circumstances you should not need to delete services from the DT91 If you move to a different region however or if a station ceases transmission stations may be shown as available that can no longer be received Individual stations cannot be deleted To remove stations from the selection list that can no longer be received first press the MENU button the display shows DAB Setup Press SELECT to scan Turn the control knob until the display shows DAB Setup Press SELECT to erase then press SELECT All services are deleted DT91 A delete operation should always be followed by a search for available stations as described previously E 6 otherwise no DAB radio stations will be available for selection Search for radio stations FM To perform a search Ensure that the DT91 is in FM mode by pres
28. rd decks are very sensitive to the noise generated by mains power supplies which will be heard as hum if the record deck is too close Connecting up RS232 interface The serial interface is available for controlling the DT91 from a computer or other controller The remote control protocol is described in the Appendix to this handbook Supply voltage Move the slider to 115V or 230V depending on the mains supply voltage in your area Digital outputs The DT91 is fitted with both optical and co axial digital audio outputs the two carry the same information at all times If you wish these can be connected to an external DAC or your AV receiver which may enhance the final audio quality Alternatively they can also be used to connect this tuner to a digital recording device such as a CD R or Minidisc recorder for direct recording When listening to a DAB radio station these outputs carry audio with a sample rate of 48kHz when an FM station is being received the sample rate is 32kHz SUPPLY VOLTAGE E ij POWER INLET 115 230V ce Mains lead The appliance is normally supplied with a moulded mains plug already fitted to the lead If for any reason the plug needs to be removed it must be disposed of immediately and securely as it is a potential shock hazard when inserted into the mains socket Check that the plug supplied with the unit fits your supply and that your mains supp
29. show which mode is selected This button toggles the tuner s display between on and off Preset memory buttons These buttons allow access to individual preset stations To select a preset press the corresponding button For presets 9 to 16 press and hold the corresponding preset button for two seconds MODE TUNE buttons These buttons enable you to scroll through the available stations For more information on tuning radio stations in see the sections Searching for radio stations DAB and Searching for radio This button has the same function as stations FM on page 6 and 7 DISPLAY MODE on the front panel BAND This button has the same function as SELECT on the front panel Amplifier controls These buttons offer basic control over Arcam amplifiers CD player controls These buttons offer basic control over Arcam CD players Note Remember to install the two AAA batteries supplied before trying to use your remote control Do not place anything in front of the tuner where the IR receiver is located or the remote control may not E 8 work Digital audio output Format Sample rate Output impedance co axial Analogue audio output Connectors Output level Output impedance Minimum load Frequency response 0 5dB RF performance DAB mode Tuning range Sensitivity VHF measurement to EN50248 Audio data rate maximum RF performance FM mode Tuning
30. sing the DAB FM button until FM is shown on the display There are two methods to search for stations in FM mode If you know the broadcast frequency of the station you want turn the control knob on the front panel until the desired frequency is displayed You should then hear the required radio station An alternative search method is to press and hold the gt or 4 keys on the remote control After a delay of about one second the DT91 begins scanning for the next available station On finding a station with a strong enough signal the DT91 stops scanning plays the station and displays the station details If no stations can be received then your aerial is not providing an adequate signal Please contact your Arcam dealer for further information or advice Switching to mono In some weak signal areas it can be beneficial to force the FM tuner to mono output as mono requires a much lower signal strength to produce acceptable results Press MENU then turn the control knob until Mono is displayed If the signal strength in your area is good leave this set to Stereo Programming a preset radio station Preset stations are available for both DAB and FM Up to 16 stations can be stored as presets First select the radio station you wish to assign to a preset Press STORE 1 8 or STORE 9 16 then press the appropriate preset button to store the service Selecting a preset To select presets 1 to 8 press and release the c
31. ur area then the supplied indoor aerial may be sufficient it should be hung on a wall with both wires fully stretched out vertically An external aerial is recommended in order to receive the highest number of services DAB transmissions can be in either Band III or the L band or both To determine the transmission frequency in your area contact your dealer or refer to www WorldDAB org In Band III transmission areas use a multi element Yagi aerial if you are a long way from a transmitter or use an omnidirectional or folded dipole aerial if you are close to more than one transmitter in the U K a Band III region this should be mounted with the elements vertically as the transmissions are vertically polarised If the DAB services in your area are transmitted on L band then consult your dealer for advice on the best aerial to use You may have noticed that although the DT91 supports both DAB and FM radio there is only one aerial connector on the rear panel If you wish to feed signals from both aerial types into the unit a low loss signal combiner must be used as shown in the diagram Otherwise choose the aerial type for the medium you use most often Whether you decide to install an external aerial or opt to use the supplied ribbon cable it should be connected to the F type screw connector labelled AERIAL INPUT on the rear of the unit Se Aerial combiner The type of aerial you should use depends on your list
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