Bose II CD Player User Manual
Contents
1. cushions 4 AR Q ase P wW Note f you hear a hiss or a low rumbling sound this may indicate an improper fit Extending the headband slightly should correct this condition Wearing glasses with thick temples or a hat may interfere with the fit and cause a problem Final adjustment is best accomplished in a noisy environment with the headset system turned on Then reposition both earcups until the headset seems quietest Using the Bose Aviation Headset Interconnect plug The headset interconnect plug connects the headset cable to a power source The power source can be an installed connector in the aircraft s control panel or an adapter cable connected to a portable battery pack The interconnect plug is designed for quick connection and removal To ensure correct pin alignment the plug has a keyway 2 Note The illustrations below show the insertion of the headset inter connect plug into the adapter cable To insert the interconnect plug into the aircraft control panel the same procedure would be used To insert rotate the plug until the keyway is aligned then insert until it locks in place Figure 2 Inserting the headset interconnect plug into the keyway p m To remove gently pull back on the sleeve of the connector This automatically unlocks the plug from the socket Figure 3 Pulling back on the sleeve to remove the interconnect plug Microphone placement For good communica2. earcup when the flanges face the earcup s outer side Make sure the arc of the boom curves in front of the headset Attach the clip to the headset by tightening the attachment knob until the clip is secure 2 Note The view shown is for the left earcup To install on the right earcup turn the clip and boom assembly over Figure 8 Relocating the mic boom 10 Using the Bose Aviation Headset 4 Plug the mic cable into the headband arm You may want to use the adjustment screw to tighten the tension of the clip on the boom mic The adjustment screw is on the flat end of the clip Use a in hex wrench to tighten it Do not over tighten Experience in using the headset helps establish your sense of how it should sound If you notice a problem refer to In Case of Difficulty page 20 If problems persist contact the Bose Aviation Headset Service Department to arrange for service page 23 Headset cable relocation Using the Bose Aviation Headset Powering the headset The Bose Aviation Headset Series Il may be powered in one of two ways a portable battery pack or a connector installed into the aircraft s instrument panel Portable battery pack The portable battery pack is available in two versions NICAD rechargeable and alkaline The NICAD rechargeable battery pack e Operates for 12 16 hours e Recharges in 90 minutes maximum CAUTION Be sure to use t
3. for Aircraft Audio Systems and Equipment e Transient RF Susceptibility per RTCA DO 214 Y 2 5 11 1 and RTCA DO 160C 1 20 0 Category T e Sustained RF Susceptibility per RTCA DO 214 1 2 5 11 2 and RTCA DO 160C 91 20 0 Category T Operational Advisories CE Declaration of Conformity We the offerer Bose Corporation The Mountain Framingham MA 01701 9168 USA acknowledge our sole responsibility that the product Kind of equipment Headset Type designation Bose Aviation Headset Series ll in accordance with EMC Directive 89 336 EEC and Article 10 1 of the Directive is in compliance with the following norms Technical regulations Electromagnetic Compatibility Emissions EN55011 EN55013 EN55022 Electromagnetic Compatibility Susceptibility EN50082 1 EN55020 Accredited by Bose Corporation 14 March 1997 Bose B V Anton A 1a Nijverheidstraat 8 1135 GE Edam General Manager Bose Europe The Netherlands Manufacturer s authorized EU representative Operational Advisories coonococconncccccnnncccccnnonncnnnnanncnnnnarncnnnnnnnn 2 INtroOdUCHON ita a ed cael 6 Description ai 6 Waranty cardoso eon eroticas dt aereo ent 6 Using the Bose Aviation Headset nnnene 7 For proper headset fll oocoooococconnccccononcccccconcccnnonarccnnonnncnnnns 7 interconnect plug ceeccecseeeeseeeeeeeeceneeneeseeeeseeneneneeeees 8 Microphone placement 244404444nnnnnnnnn
4. reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures e Reorient or relocate the receiving antenna e Increase the separation between the equipment and the receiver e Connect the equipment into an outlet on a circuit different from that to which the receiver is connected e Consult the dealer or an experienced radio television technician for help This apparatus does not exceed the class B limits for radio noise emis sions from digital apparatus set out in the Radio Interference Regulations of the Canadian Department of Communications It also complies with Canadian ICES 003 Class B Operational Advisories This headset meets or exceeds all requirements of EN352 4 1996 European Standard Hearing Protectors Safety Requirements and Testing Part 4 Level Dependent Ear Muffs e The wearer should ensure that i The ear muffs are fitted adjusted and maintained in accordance with the m
5. reduction the Clear Comfort cushions in the headset should be replaced periodically annual replacement is recommended As the cushions wear the silicone gel rings may spread apart causing uneven thicknesses and gaps in coverage This can lead to air leaks that result in reduced noise attenuation Popping or fluttering sounds are also common when wearing worn cushions If the gel leaks replace the cushion Frequent flying may require replacement more often To order a replacement cushion kit call the Bose Aviation Headset Service Department page 23 Before ordering remove the cushions and inspect the foam liners in the earcups If you note significant deterioration order foam liner replacements also To remove the cushion and foam liner Y Note Do not use a hard object such as a screwdriver which can mar the earcup 1 Unsnap the trim ring on one earcup by gently prying the edge loose with your fingers Figure 12 Unsnapping the trim ring from the earcup Once the trim ring has popped loose work your way around the earcups until the trim ring is completely free 2 Lift out the old cushion If you will be installing a new foam liner proceed to the next section Otherwise skip to To replace the i cushion page 19 Care and Maintenance To install a new foam liner d Note The left and right foam liners are different 1 Lift the old foam liner out of the earcup 2 Place the new foam liner in the earc
6. 0Q off Frequency response 20Hz 15kHz Sensitivity 90dB SPL measured at 1mW 1kHz full volume on flat plate coupler Microphone Bias Required 8 to 16VDC through 220Q to 2200Q Sensitivity Depends upon bias and radio AC input impedance Typical output is 300mV at 114dB SPL To assure proper modulation of your radio it is recommended that you have your avionics technician adjust its input to match the output of your headset s microphone Active noise reduction Active Noise Reduction Bandwidth 30Hz 700Hz Noise floor 28dBA SPL typical Maximum ambient noise level Approximately 118dB SPL at full cancellation Voltage 7 32VDC Current 60mA typical 120mA maximum operating Fuse breaker recommended 1 2 amp fast blow AGC 1 2 fuse 21 Technical Information 22 Headset Weight 22 oz 567 grams Temperature and Altitude Category A1 Operating Temperature 5 to 131 F 15 to 55 C Storage Temperature 67 to 158 F 55 to 70 C Altitude 15 000 ft maximum pressure altitude for full cancellation The Bose Aviation Headset Series Il headset adapter cables battery packs and boom microphone are FAA approved to TSO c 57a and c 58a The Bose Aviation Headset Series Il has been designed to function in or withstand exposure to the following environmental conditions Environmental categories cited refer to RTCA DO 160C 4 Dec 1989 and DO 214 4 Mar 1993 Condition Category AF
7. Bose Aviation Headset Series II Owner s Guide BOSE Operational Advisories As with any complex electronic device it is possible for this headset to experience a failure during operation Such a failure may include loud tones distortion and loss of communications signal in the headset when used in the active or on position The system is on when the rocker switch is up Note This failure could prevent continued use of the headset in the on position These loud tones and the related loss of communications can be elimi nated for the duration of the flight simply by switching the headset off The system is off when the rocker switch is down With the switch off the headset continues to function in the passive mode maintaining full communication capabilities We strongly recommend that as a responsible pilot you ensure you can hear and recognize typical aircraft sounds while you are using the headset Limit the volume of your headset to safe levels so it does not interfere with your ability to hear informational sounds such as those emitted by warning alarms i e stall warning gear up Avoid setting the volume controls at high levels that may affect your hearing during extended periods of headset use The Bose Aviation Headset Series Il has been tested and found to comply with limits for a class B digital device pursuant to part 15 of the FCC rules These limits are designed to provide
8. Conducted Susceptibility B Humidity B Magnetic Effect Z Power Input B RF Susceptibility T Vibration P amp S Voltage Spike A Shock drop 12 times 1 meter onto concrete Service and Warranty Information Service Bose Aviation Headset Service Department 145 Pennsylvania Avenue Framingham MA 01701 9168 U S A TEL 1 800 233 4416 U S 1 508 879 7330 ext 62006 outside U S FAX 1 508 820 3465 Contact the Bose Aviation Headset Service Department for e accessories e technical advice e installation information e warranty and repair information If your headset must be returned for service 1 Request a return authorization number from the Bose Aviation Headset Service Department See above 2 Securely pack the headset enclosing your name address daytime telephone number and a description of the problem 3 Clearly mark the outside of the package with your return authoriza tion number insure your headset and send it to the address above Warranty period Limited Two Year Warranty Bose Corporation Bose warrants this product to be free from defects in material and workmanship for a period of two years from the date of purchase The ear cushions are not included in this warranty annual replacement of cushions is recommended See Care and Maintenance page 18 23 Service and Warranty Information 24 Limited warranty Bose product What is covered All parts defective in material or w
9. The connector s small size allows it to be installed in a convenient location in the control panel for example near the head phone and mic jacks Installing the DC power connector Y Note This installation must be done by mechanics qualified to perform this type of avionics installation for the aircraft in which the installed connector will be used 1 Install the wires from the DC power connector into the plane The pinout for the connector is as follows Pin Wire Description 1 Red Headset power 7 32 Volts DC Use a 5 amp fuse or circuit breaker 2 Black System ground Connect to the existing audio ground 2 Plug the headset adapter power plug into the connector Figure 10 p Inserting headset plug Q into the connector Insert the headphone and microphone plugs into their receptacles in the aircraft s control panel Figure 11 Location of headphone and microphone receptacles in a typical plane s control panel Care and Maintenance Cleaning instructions Clean the headset exterior and cushions by wiping them with a moist cloth Mild soap may be used A CAUTION Do not immerse the headset in water The headband cover is made from leather and sheepskin If it becomes soiled it may be removed and cleaned using mild soap To remove the headband cover peel apart the hook and loop fastener along the flap Clear Comfort cushion replacement and maintenance To maintain good noise
10. anufacturer s instructions ii The ear muffs are worn at all times in noisy surroundings iii The ear muffs are regularly inspected for serviceability A WARNING If the above recommendations are not adhered to the protection afforded by the ear muffs will be severely impaired e This product may be adversely affected by certain chemical sub stances Further information can be sought from the manufacturer e Ear muffs and in particular cushions may deteriorate with use and should be examined at frequent intervals for cracking and punc tures for example EN352 4 also calls for HML Criterion Levels and other data to be provided to describe the hearing protection performance of level dependent devices At present no standard has been drafted or accepted defining how to measure the hearing protection provided by active noise cancelling headphones In the absence of an accepted method Bose Corporation has had the product s attenuation mea sured by an accredited U S testing laboratory using a combination of real head methods Based on this information the Bose Aviation Headset Series II provides sufficient hearing protection in any noise up to 108 dB A in sound pressure level For more information on the methods used and the results obtained please contact the Bose Aviation Headset Service Department page 23 This headset complies with RTCA DO 214 Audio Systems Characteris tics and Minimum Operational Performance Standards
11. earcup The cushion should sit on the earcup evenly without gaps e Check the holes at the bottom of each earcup to make sure they are not blocked If dust or dirt has built up here carefully use a small wire or the end of a paper clip to unclog the hole You may need to remove the microphone to clean the holes e Adjust the earcup fit to eliminate the sound e Inspect the seal between the cushion and the earcup The cushion should sit on the earcup evenly without gaps Check to see if the ear cavity foam liner is missing or severely damaged If so refer to Care and Maintenance page 18 Do not attempt to disassemble or service the inside of the earcups or other parts of the headset Only the microphone boom assembly Clear Comfort cushions trim rings foam liners headband cover and foam pad are designed for replace ment by the user For instructions on how to care for your headset and how to replace the cushions refer to Care and Maintenance page 18 If problems persist contact the Bose Aviation Headset Service Department page 23 Technical Information Sound pressure levels SPL are relative to 20 micro Pascal Earphones Damage could occur to avionics equipment if it was manufactured for use only with 600Q ohm headsets If in doubt consult the avionics equipment manufacturer Impedance In mono mode 480Q on and 190Q off at 1kHz In stereo mode left 500Q on 190Q off right 2000Q on 19
12. et environment Popping sound audible with headset turned on in a loud environment Squealing whistling or chirping sound when the system is turned on 20 What to do e Make sure that your headset is powered and that the power switch is ON e f using DC power from the aircraft check the aircraft fuse or breaker e If using the NICAD battery pack verify that it is charged e If using the alkaline battery pack verify that batteries are installed with the correct polarity The negative terminal of each battery attaches to the springs in the battery holder refer to step 4 on page 13 batteries are fully seated and in contact with the top and bottom contacts of the battery holder If necessary spin the installed batteries once with your thumbs to fully seat them refer to step 5 on page 13 batteries are fresh the headset plug is fully seated in battery pack refer to step 11 on page 14 Check to see if the volume controls are turned too low rotate up to increase the volume Check the holes at the bottom of each earcup to make sure they are not blocked If dust or dirt has built up here carefully use a small wire or the end of a bent paper clip to unclog the hole You may need to remove the microphone to clean the holes e Adjust the earcup fit to create a better seal to your head Be sure that a hat or eyeglasses do not interfere with the seal e Inspect the seal between the cushion and the
13. he correct charger Bose model numbers BC QC120 for 120V or BC QC230 for 230V Using the wrong charger may damage your charger or battery pack The alkaline battery pack e Operates for approximately 40 hours e Holds 6 AA alkaline batteries Charging the NICAD battery pack 12 Y Note Completion of the charging cycle is indicated by the flashing light on the charger The battery will not be damaged if left connected to the charger Using the Bose Aviation Headset Inserting batteries into the alkaline battery pack Spin the batteries once with thumb to seat them securely Using the Bose Aviation Headset Using the Bose Aviation Headset Installed connector An optional installed connector is available for pilots who want to hardwire the DC power incoming audio and outgoing microphone functions permanently into their plane The panel mount receptacle comes wired with a 6 foot harness to simplify the installation process To order this connector contact the Bose Aviation Headset Service Department page 23 The Bose Aviation Headset Series ll uses a self latching precision designed quick connector A mechanical keying system ensures greater ease in mating Installing the wire harness Y Note This installation must be done by mechanics qualified to perform thi
14. he internal solder joints 3 If the boom mic works on radio transmit but not through the intercom check Pin 6 It is probably miswired to the PTT segment of the mic jack 4 The wire connecting Pins 3 amp 4 and 5 amp 6 are shielded twisted pair with a shield termination exiting with a black wire for each pair Connect shields to existing audio wiring shields or audio ground if the existing wiring is not shielded 15 Using the Bose Aviation Headset 5 Approved adhesives for use with this connector are Ciba Geigy Uralane 5754 A B Lord 710 or VTCS 6 Vibratite Do not let any cyanoacrylate based adhesives e g Loctite flux remover or other caustic compounds come into contact with the installed connector body These chemicals will cause deterioration and or irreparable damage to the connector For information on chemical compatibility and connector part number contact LEMO USA Santa Rosa CA at 1 800 444 5366 PANEL HOLE REQUIRED Figure 9 Connector technical information RECEPTACLE PINOUT FRONT VIEW PIN 1 PIN6 AIRCRAFT INTERFACE SCHEMATIC RED gt 1 V IN Bug aT e 2GND Wa m 3COMML E e 4COMMR WEE e 5MICHI J BLU 4 1 ampio 16 Using the Bose Aviation Headset Installed DC power connector An optional installed connector is available for pilots who want to use their plane s DC power instead of the battery pack with the portable adapter cable
15. nnnnnnnnnnnnnnnn 8 Adjusting the VOIUMC uurssersnsensnnnnnnnnennnnnnnnnnn nennen 9 Fail resistant operation cccccessecceeeesessssseeeeeessssssaeees 9 Microphone boom relocation o cccccconcccocccnncnnnnnnnnnnos 10 Headset cable relocation ccccccceeeeeceeeeeeeteeeeeneeees 11 Powering the headset ceeeeceeeeeeeeeeeeeseeeeeeeneeeees 12 Portable battery pack oooooocccconiccccnonccccconncccnnnnnnnnnnns 12 Installed connector 22204444440nnnnnnnnnnnnnnnnnnnnn 15 Installed DC power connector uur2244n nenn 17 Care and Maintenance uu 22440u4nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn 18 Cleaning instructions serian naren 18 Clear Comfort cushion replacement and MAINTENANCE isian i aaan 18 In Case of Difficulty crne a a 20 Technical Information ooooconnnccccnnnocccnnnnononcnonancnnnannnnnnnnnnnnnncnns 21 Service and Warranty Information ooooncccinncconcccnncncnnnnnonnnonns 23 Introduction Description Congratulations on your purchase of the Bose Aviation Headset Series Il This headset uses an advanced combination of electro acoustical noise reduction circuitry and a patented cushioning system to signifi cantly reduce aircraft noise It actively reduces noise elements in addition to muffling noise The patented Clear Comfort cushions require only slight pressure to provide high passive noise attenuation As a result this headset can be worn comf
16. orkmanship For how long At least one year from the purchase date or longer if specified in your owner s manual but not longer than five years from the purchase date What we will do We will at our sole option repair or replace any defective parts free of charge What we will not do Pay shipping or transportation charges from you to us What you must do 1 Return product personally with proof of purchase from an authorized Bose dealer to your authorized Bose dealer or 2 Return product personally with proof of purchase from an authorized Bose dealer to the nearest Bose Service Agency or 3 Return product personally with proof of purchase from an authorized Bose dealer directly to the Bose organization in your country If you elect to return the product directly to a Bose organization A Contact the Bose organization in your country for specific return and shipping instructions B Properly pack the product in the original carton for shipping If you need a new carton contact the Bose organization in your country for a new carton available at a nominal charge C Label and ship freight prepaid to the address provided by the Bose organization in your country and D Place any necessary return authorization number prominently on the outside of the carton Cartons not bearing a return authorization number where required will be refused Other conditions This warranty is fully transferable provided the current owner f
17. ortably for extended periods The headset may be powered in one of two ways a portable battery pack or a connector installed into your aircraft ATTENTION With the headset s combination of both active and passive attenuation typical aircraft sounds for example those from engines propellers warning alarms and other sound sources may sound different to you We strongly recommend that you ensure you can hear and recog nize these sounds while you are using the Bose aviation headset while operating any aircraft In addition should you choose to listen to in flight entertainment through a Bose headset while piloting we remind you to limit the volume to safe levels so that it does not interfere with your ability to hear informational sounds such as those emitted by warning alarms Warranty card 1 Remove the headband cushion by pulling it away from the hook and loop fastener 2 Copy the serial number from the white label onto the warranty card 3 Complete the warranty card and mail it to Bose Figure 1 Adjusting the headset Using the Bose Aviation Headset For proper headset fit Note The headset must be worn with the Bose logo located on the earcups facing forward To achieve comfort and good performance adjust both sides of the headband equally to provide a comfortable fit To achieve a good seal lightly grasp both earcups and position them so that your ears are completely inside the Clear Comfort
18. s type of avionics installation for the aircraft in which the installed connector will be used A 5 in x 56 in 1 27 cm x 1 42 cm cutout is required to mount the connector as shown in Figure 9 There are 6 wires to connect 2 for microphone 2 for audio 1 for power and 1 for ground The audio and microphone wires should be con nected to the back of the existing microphone and phone jacks This leaves the existing jacks intact for use with conventional headsets and is usually the fastest installation method The pinout for the optional installed connector is as follows Pin Wire Description 1 Red Headset power 7 32 Volts DC Use a 5 amp fuse or circuit breaker 2 Black System ground Connect to the existing audio ground 3 White Phone communication left 4 Black Phone communication right 5 White Mic Hi audio Connect to the existing portion of the mic jack that corresponds to the ring position of a headset micro phone plug Do not connect to the tip PTT segment 6 White Blue Mic Lo ground Connect to the existing portion of the mic jack that corresponds to the barrel position of a headset microphone plug Y Notes 1 If used with a stereo intercom connect the left and right channels to their respective positions For mono operation connect Pins 3 amp 4 together to the tip portion of the existing phone jack 2 Do not bend or use excessive force on the installed connector Doing so may damage or break t
19. tion clarity and noise rejection locate the micro phone housing so that it just brushes your lips Figure 4 Placing the microphone Using the Bose Aviation Headset Adjusting the volume The volume for your headset is controlled by the grooved knobs located on the front side of the headband arms Avoid setting your volume controls at high levels that may affect your hearing during extended periods of headset use Y Note The volume controls and the active noise reducing circuitry work only when the headset is turned on Figure 6 d Note The volume cannot be turned off completely Figure 5 Adjusting the volume Figure 6 Turning the headset ON OFF Fail resistant operation The headset provides communication and the earcups block some noise even with the power switch on your headset turned off bypass ing all active noise reducing electronics Turn the headset off if you suspect there may be a problem for more information refer to In Case of Difficulty page 20 Using the Bose Aviation Headset Microphone boom relocation To suit your flying preference the headset boom can easily be moved from one earcup to the other 1 Unscrew the retaining knob on the boom mic mount 2 Unplug the mic cable from the headband arm Figure 7 Unplugging the mic cable 3 Find the crescent shaped flanges on the top and bottom of the boom s attachment clip Figure 8 The clip fits snugly on the
20. up With the correct foam liner in place nesting along the walls of the cavity its half moon shaped opening should cover the microphone and the small opening in the foam liner should fit over the small hole To clean the cushion Using a baby wipe or a cloth moistened with isopropyl alcohol gently wipe the side of the cushion that touches the ear Let the cushion air dry To replace the cushion 1 Place the holes in the new cushion onto the posts on the earcup Figure 13 Placing the new cushion onto the earcup Figure 14 Alignment of earcup foam liner cushion and trim ring Y Note If both old cushions have been removed note that there are left and right trim rings The left ring will not fit on the right earcup 3 Snap the trim ring down firmly along its entire circumference 2 Note Make sure that the trim ring is not grabbing or pinching the side of the cushion at any spot If it is remove the trim ring and reattach the cushion being sure the cushion skin is not pinched 4 Replace the foam liner and cushion on the other earcup in the same manner 19 In Case of Difficulty Problem Communication but no active noise reduction in both ears Active noise reduction but no or very low volume communication in both ears Reduced active noise reduction intermittent clicking sounds or communication distortion in a loud environment Low rumbling sound with the headset turned on in a qui
21. urnishes the original proof of purchase from an authorized Bose dealer THE PROVISIONS OF THIS WARRANTY ARE IN LIEU OF ANY OTHER WARRANTY WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE BOSE S MAXIMUM LIABILITY SHALL NOT EXCEED THE ACTUAL PURCHASE PRICE PAID BY YOU FOR THE PRODUCT IN NO EVENT SHALL BOSE BE LIABLE FOR SPECIAL INCIDENTAL CONSEQUENTIAL OR INDIRECT DAMAGES This warranty does not cover a defect that has resulted from improper or unreasonable use or maintenance accident improper packing or unauthorized tamper ing alteration or modification as determined solely by us This warranty is void if the label bearing the serial number has been removed or defaced Other law rights This warranty gives you specific legal rights and you may also have other rights which vary from state to state or country to country Some places do not allow limitations on implied warranties or the exclusion or limitation of incidental or consequential damages so the above limitations or exclusions may not apply to you 25 26 coreo 4 y fa Better sound through research O 1997 Bose Corporation The Mountain Framingham MA 01701 9168 USA JN97884 PN183953 Rev 01 AM183953 Rev 01
Download Pdf Manuals
Related Search