B&K AVR101 Скачать руководство пользователя страница 15 | Manualshive

Страница: 15 / 60

background image

SPEAKER OUTPUTS

Five-way binding posts are provided, one pair for each channel. They are designed to accept a banana-type plug
or spade lug connector (shown below) and are color coded for easy identification. The red (+) post should always
be connected to the speaker’s red (+) jack. The black (-) post should always be connected to the speaker’s black
(-) jack.

Spade connector Banana jack

The amplifier section of the receiver will produce 105 watts / channel into 8 ohms. See SPECIFICATIONS for
more information.

Here is a typical receiver output setup

:

P L U S

C E N T E R

R E A R R I G H T

R E A R L E F T

Rear Right

Rear Left

Center

M I N U S

P L U S

M I N U S

P L U S

M I N U S

Front Right

Front Right

P L U S

M I N U S

Front Left

Front Left

P L U S

M I N U S

SUB 1 CENTER 1 REAR L FRONT L

SUB 2 CENTER 2 REAR R FRONT R

S U R R O U N D O U T P U T S

P O W E R E D

S U B W O O F E R

Subwoofer Output - your receiver does not include a power amplifier for a subwoofer speaker. Most subwoofers
contain their own internal amplifier, so none is needed in the receiver. Connect an RCA cable from one of the
receiver’s two SUB outputs (part of the surround outputs). You may connect a second subwoofer to the other SUB
output if desired. If your subwoofer does not contain its own amplifier you will need to purchase an external B&K or
other power amplifier. Connect the receiver’s SUB output to the audio input of the external amplifier. Connect the
external amplifier’s speaker output to your subwoofer.

12

p/n 12699 Rev. 9812C

«
...
13
14
15
16
17
...
»

Содержание AVR101

Страница 1: ...B K Components Ltd AVR101 series 100 AVR202 series 200 A V Receiver Owner s Manual p n 12699 Rev 9812C ...

Страница 2: ...B K Components Ltd 2100 Old Union Road Buffalo New York 14227 2725 Phone 716 656 0026 Fax 716 656 1291 http www bkcomp com E mail info bkcomp com p n 12699 Rev 9812C ...

Страница 3: ...usting the Volume 33 Tuner Operation 33 Choosing a source 32 Sleep 32 Power On Off 32 Operation 31 Memory Backup 30 FM Tuner Settings 29 AM Tuner Settings 29 Source Levels 28 Speaker Calibration 24 Speaker Size and Delay 24 Setup Configure 22 Surround Mode Operation 21 Edit Preset Options 17 Display Setup 17 User Preference Setup 16 The Menu System 16 Setup 14 Frequently Asked Questions 13 Control...

Страница 4: ...S digital sound and coherent acoustics logos are trademarks of DTS Technology LLC All rights reserved Motorola Powered by Motorola Motorola name and logo are registered trademarks of Motorola Inc The AVR101 series 100 may be used to process Dolby Pro Logic and Dolby Digital The AVR202 series 200 may be used to process Dolby Pro Logic Dolby Digital and DTS Accessories included Owners manual Remote ...

Страница 5: ... place heavy objects on its top cover The receiver is equipped with raised feet to provide ventilation reduce acoustic feedback and provide protection against scratching the surface the unit is resting on We advise against removing or altering feet Do not stack anything on top of the receiver processor source etc Leave a minimum of 3 clearance from the top of the receiver to the next shelf or comp...

Страница 6: ...hannels Analog inputs outputs seven A V inputs and five A V outputs all with stereo audio composite video and S video plus one set of 5 1 channel surround outputs Digital inputs outputs seven coaxial inputs and one coaxial output plus five optical inputs and one optical output Control Outputs four 12 VDC 50 mA outputs for controlling external systems such as a projection screen or B K amplifier IR...

Страница 7: ... are modified using a process called compression to squeeze more information into limited space DTS squeezes 5 1 channels into the space normally required for two uncompressed channels while Dolby Digital squeezes 5 1 channels into about the space required for two channels Your receiver automatically detects the bitstream currently being provided from the source and performs the required decompres...

Страница 8: ...en referred to as 5 1 channels Dolby Digital is a digital format only It must be delivered to your receiver over a coaxial or optical digital cable As of the writing of this manual Dolby Digital is commercially available on DVD Also see Dolby Digital RF below It is also possible to create your own Dolby Digital CDs and DATs if you have the recording equipment You can t directly record Dolby Digita...

Страница 9: ...ically includes the capability to decode one or more surround formats and convert between digital and analog as required Your receiver includes a high quality processor capable of decoding the surround formats described above Zone A zone is usually a room that has speakers installed in it Your receiver includes a full preamp processor for zone 1 plus an additional analog stereo preamp for zone 2 T...

Страница 10: ...cts MASTER CENTER REAR and SUBWOOFER level Also allows ZONE 2 operation 3 Main power switch Removes all power to the receiver Normal operation of the receiver requires the power switch to remain on Use the Sleep button for daily on and off of the receiver It places the unit in standby mode that allows turning back on with the remote control Turn the receiver off with the main power switch when not...

Страница 11: ... to an audio or video recorder 9 Zone outputs Variable level outputs to your video monitors and external amplifiers 10 IR in Accepts input from external IR receptors Connect an IR repeater home run to IR IN for controlling the receiver This method of control is useful when the front IR receptor is blocked for example by a cabinet door or to control the receiver from another room This input is typi...

Страница 12: ...play see SETUP SOURCE NAMES y Also note the length of the cable for each component s connection and describe how it should be routed or draw your routing scheme below your list You may want to label each cable with a name or number at both ends Use high quality connections to maintain high quality audio and video y Think about the type and length of cable you need and obstacles in the cable s path...

Страница 13: ...der then omit the video connections LINE INPUTS Right audio input from VCR output Composite video input from VCR output S Video input from VCR output V1 Left audio input from VCR output LINE OUTPUTS Right audio output to VCR input Composite video output to VCR input S Video output to VCR input V1 Left audio output to VCR input Attach one end of the audio interconnect cable to the left audio output...

Страница 14: ...d to convert and select between the Laser s AC 3 RF and PCM DTS signals The output from a DT 1 will automatically select between the connected PCM DTS bitstreams and the converted AC 3 RF Dolby Digital signal Other AC 3 RF to Dolby Digital decoders may not make this switch automatically Connect the laserdisc s AC3 RF output to the DT 1 s AC 3 RF input Connect either the laserdisc player s PCM coax...

Страница 15: ...NUS PLUS MINUS Front Right Front Right PLUS MINUS Front Left Front Left PLUS MINUS SUB 1 CENTER 1 REAR L FRONT L SUB 2 CENTER 2 REAR R FRONT R SURROUND OUTPUTS POWERED SUBWOOFER Subwoofer Output your receiver does not include a power amplifier for a subwoofer speaker Most subwoofers contain their own internal amplifier so none is needed in the receiver Connect an RCA cable from one of the receiver...

Страница 16: ...c in zone 2 Control 3 Z1 Z2 On 12 VDC when zone 1 zone 2 or both zones are turned on Off 0 VDC when both zones are off Control 4 REMOTE It will repeat a received 38 kHz modulated IR signal The receiver will transmit received IR signals even in sleep mode Note The control outputs can output a maximum of 50 mA Check to see that the source you are connecting to the control out requires 50 mA or less ...

Страница 17: ... an AC 3 RF demodulator B K DT 1 or equivalent to playback Dolby Digital DVDs No this is required only for Dolby Digital AC 3 laserdiscs Do I need an AC 3 RF demodulator B K DT 1 or equivalent to playback DTS laserdiscs No this is required only for Dolby Digital AC 3 laserdiscs Do I need to connect both analog and digital audio from my DVD player or other digital audio source to the receiver In ge...

Страница 18: ...itors or VCRs may require you to physically disconnect S video before they will accept composite video Some monitors are capable of automatic switching between S video and composite but this may not work correctly using your receiver s Z1 output Refer to your monitor or VCR manual To assist you the receiver s on screen display will tell you what video is currently selected whenever you change sour...

Страница 19: ...WS to move to the desired menu line Pressing SEL or ENTER will activate the next menu NUMERIC KEYS remote only From the remote control you may also go directly to a menu line by typing the corresponding line number If there is another menu below that line it will be activated immediately no ENTER required LEFT RIGHT ARROWS remote or VOLUME KNOB front panel Some menu selections allow you to change ...

Страница 20: ...it menu system SEL MENU move to new line select menu page previous page SEL MENU 5 Memory Options activate USER PREFERENCE SETUP ENTER SEL or ENTER 4 move to User Preferences UP or DOWN PAUSE or STOP 3 activate menu system MENU MENU 2 turn on receiver A SLEEP AUD or POWER 1 Action From Front Panel From Remote Display Setup This menu allows you to setup various aspects of your video and front panel...

Страница 21: ...r S video on the selected source If it finds S video it will send it to your Z1 monitor If it finds no S video but does find composite video it will send composite video to your monitor It is up to you to set your monitor accordingly If it finds no video it will send its internal background screen to your monitor If S video was previously detected on the current source then the background screen w...

Страница 22: ...djust parameter previous page MENU 5 Z1 Monitor Aspect 4 3 change Overlay Type VOLUME KNOB REW or FF 2 move to Overlay UP or DOWN PAUSE or STOP 1 Action From Front Panel From Remote Set the intensity of the front panel display DISPLAY SETUP 1 Background Color Red 2 Overlay Opaque Bright 3 Front Display Bright 4 Z1 Monitor Video S Video 6 Z1 Tuner Video Last 7 Z2 Tuner Video TV V3 GLVSOD EULJKW mov...

Страница 23: ...work sports broadcast while listening to your local radio announcer You can set any of the seven external sources You can also choose last In last mode the tuner video will be from whatever source you watched before switching to TUNER The final choice for tuner video is off In zone 1 off will cause the background color to be displayed Zone 2 has no on screen display capability so off is truly off ...

Страница 24: ...NOB REW or FF 3 activate EDIT PRESET OPTIONS ENTER SEL or ENTER 2 move to Edit Preset Options UP or DOWN PAUSE or STOP 1 Action From Front Panel From Remote Edit Source Name From the factory your receiver will display source names that match those printed on the rear of the receiver and on the supplied remote However this menu allows you to change the displayed names to match the actual sources us...

Страница 25: ...ill get sound from the front and center speakers only When the disc changes to the DTS CD you will get sound from front center and rear When the third PCM CD starts the receiver returns to 3 STEREO Note that if a Dolby Digital or DTS source is currently playing and you change the surround mode the receiver will stay in the selected surround mode until you change to another disc In MANUAL mode the ...

Страница 26: ...ained in the receiver but still wish to use the receiver s converter for Dolby Digital and DTS material If this is your case then set STEREO OPERATION to DIRECT Make sure you have made both analog and digital connections from your source In this mode when you choose STEREO your receiver will ignore the digital inputs Note that direct mode also bypasses bass management so that you get the purest po...

Страница 27: ...enter channel speaker and you do not perform this setup procedure the center channel information will be lost If you perform this setup correctly the receiver will know that you have no center channel speaker and send this information to your front left and right speakers along with the normal front left and right information so no audio information is lost About Speaker Size Speaker size literall...

Страница 28: ... Subwoofer Front Hi Pass to Front Front Bass to Subwoofer Front Hi Pass to Front Small Subwoofer Off Subwoofer On Subwoofer Ultra Front L R setting Set the size for your center speaker SPEAKER SIZE SETUP 1 Front L R 17 5 60 2 Center 3 Rear L R 4 Subwoofer 5 LFE 6 Center Delay 7 Rear Delay adjust parameter previous page MENU move to new line Small Small Small Yes Normal 0 ms 0 ms choose speaker siz...

Страница 29: ...ll to Front Rear Bass to Subwoofer Rear Hi Pass to Front Rear Bass to Sub Rear Hi Pass to Front Off Subwoofer Off Front Small Subwoofer Off Front Large Subwoofer On Subwoofer Ultra Rear setting Setup your subwoofer SPEAKER SIZE SETUP 1 Front L R 68 22 5 6 2 Center 3 Rear L R 4 Subwoofer 5 LFE 6 Center Delay 7 Rear Delay adjust parameter previous page MENU move to new line Small Small Small Yes Nor...

Страница 30: ...rom the front distance Use this number for your delay setting 1 foot is roughly equal to 1 ms If the result is negative set the delay to zero If the result is greater than 5 feet set the delay to 5 ms Ideally your front and rear speakers will be the same distance away from your listening area If this is the case leave the Rear Delay set to 0 However physical limitations often require placing the r...

Страница 31: ...o select that speaker in the SPEAKER CALIBRATION menu Also note that the VOL on the remote will not function in this menu SPEAKER CALIBRATION 1 Left HIW GE SETUP MENUS 1 Speaker Size and Delay 2 Speaker Calibration 3 Source Levels 4 AM Tuner Channels 63 5 DOLEUDWLRQ move to new line select menu page previous page SEL MENU 5 FM Tuner Channels 2 Center 3 Right 4 Right Rear 5 Left Rear 6 Subwoofer ad...

Страница 32: ...SEL or ENTER 2 move to Source Levels UP or DOWN PAUSE or STOP 1 Action From Front Panel From Remote AM Tuner Settings This set up allows you to preset up to 20 AM tuner channels for fast access This is for your convenience only and need not be performed unless you wish to Direct Frequency Tuning Enter the frequency desired using the numeric keypad on the remote control Press CHANNEL UP to select t...

Страница 33: ...for AM Tuner above Stereo Mono Programming a channel to Stereo will play the channel in stereo if it is broadcast in stereo or in mono otherwise Programming a channel to Mono will force the channel to mono regardless of the broadcast Use mono to reduce background noise on weak channels FM TUNER SETTING 0 67 K change frequency previous page MENU FM Stereo 103 3 Channel 5 change channel SETUP MENUS ...

Страница 34: ...NU move to new line select menu page previous page SEL MENU 5 Memory Options activate USER PREFERENCE SETUP ENTER SEL or ENTER 2 move to User Preferences UP or DOWN PAUSE or STOP 1 Action From Front Panel From Remote MEMORY BACKUP AND RESTORE 1 Memory Operation Backup Save ALL memory settings in EEPROM 0 025 83 USER PREFERENCE SETUP 1 Edit Preset Options 2 Edit Source Names 3 Display Setup 4 Surro...

Страница 35: ...restores its internal memory You may want to turn off the main power switch when your receiver will be idle for extended periods of time or during periods of power line fluctuations Your receiver will not lose its memory while the main power switch is off 3 6 7 BK Powering Up Please Wait main power on off POWER ON OFF can t turn off main power from remote Action From Front Panel From Remote SLEEP ...

Страница 36: ...APE TAPE wait a few seconds while receiver analyzes selected source select desired source or TUNER source will appear on TAPE and V1 outs SOURCE step to source desired source Action From Front Panel From Remote Note The tape monitor loop only allows recording of analog inputs If you simply choose the source you wish to tape without then selecting TAPE MONITOR then you can make analog recordings of...

Страница 37: ...y well in a particular movie or a movie has too much bass etc You can temporarily adjust the center rear and subwoofer settings without changing the permanent settings you made in the SPEAKER CALIBRATION setup 17 5 Center Volume 0 dB CENTER LEVEL CENTER LEVEL adjust balance Note only in STEREO mode can t adjust from front panel REW or FF adjust rear delay can t adjust from front panel DELAY or DEL...

Страница 38: ... Stereo Pro Logic Dolby Digital 2 0 Dolby Digital 2 0 Stereo Dolby Digital 5 1 DTS 5 1 Surround 3 Stereo Hall 3 Stereo Stereo Hall Stereo F R Stereo Stereo Lt Rt Headphone L R LF C LR LFE RF C RR LFE L M M R M L R L R L M M R M L R L R L R L R L R L R L R L R L M M R M L R L R L M M R M L R L R L R L R L R L R LF C RF LR LFE RR LF C LFE LR RR RF C LFE LR RR M mono same information on both channels...

Страница 39: ... and DTS Your tape outputs contain the same audio information as your left and right front speaker outputs If you make a tape in a normal listening mode such as SURROUND then the center and rear information will not appear on the tape Since the center channel contains much of the dialog for movies the tape will be almost useless STEREO Lt Rt mode allows you to make a tape with little loss of infor...

Страница 40: ... will occasionally hear a short extraneous sound at the beginning of DTS CDs and laserdiscs or after fast forward pause etc We have provided an override to eliminate this extraneous sound at the cost of automatic bitstream detection If you find the extraneous sound unacceptable engage the DTS override before playing your DTS disc Remember that if you subsequently try to play any non DTS material y...

Страница 41: ...D Stereo Lt Rt 14 dB cancel MENU change title SEL save preset 0 A9 change preset save preset ENTER SEL or ENTER 4 rename preset if desired UP or DOWN VOLUME KNOB PAUSE or STOP REW or FF 3 activate preset save PRESET and ENTER simultaneously SAVE 2 prepare for saving preset make all settings you wish to save make all settings you wish to save 1 Action From Front Panel From Remote Recalling Saving P...

Страница 42: ...henever you change sources or whenever the source information changes The video type is very important if you are using mixed composite and S video sources since it will tell you how you must set your monitor for the best picture The bitstream and channel information is particularly important with DVDs since they may contain multiple soundtracks When you initially start the DVD you may get a Dolby...

Страница 43: ... may also wish to install a remote repeater system to allow zone 2 control from other rooms Via the Menu System You can control zone 2 from the menu system using either the front panel or zone 1 remote Choose Zone 2 Operation from MAIN MENU Be sure the remote is in AUDIO mode ZONE 2 OPERATION PXVLF YLGHR change character save preset previous page SEL MENU PRESET 0 Music Video POWER Off SOURCE INPU...

Страница 44: ...P MENUS Make sure your receiver is on and the remote is in AUDIO mode ADVANCED SECURITY OPTIONS 1 Advanced Menu Visible 2 Memory Lock No 9 1 9 6 move to new line previous page MENU adjust parameter Locking memory backs up data SLEEP DOWN SOURCE to restore set to Hidden recommended or Visible VOLUME KNOB REW or FF 3 move to Advanced Menu UP or DOWN PAUSE or STOP 2 enable advanced features A SLEEP U...

Страница 45: ...D ZONE SETTINGS ENTER SEL or ENTER 2 move to Zone Configuration UP or DOWN PAUSE or STOP 1 Action From Front Panel From Remote Z1 Product ID Each message transmitted from your remote includes a Product Code identifying the manufacturer and a product ID code from 1 to 16 The product ID code allows multiple B K products to be controlled from the same remote Your receiver actually uses two product ID...

Страница 46: ... Action From Front Panel From Remote V1 Output V1 output is normally set up as a tape loop The V1 and Z1 output are the current source V2 TV V3 CD DVD etc except when the current selection is V1 When V1 is selected as the source the Z1 output is V1 and the V1 output is off This prevents feedback when the V1 inputs and outputs are connected to a tape deck or VCR Feedback can cause high frequency os...

Страница 47: ... max level allows you to set a maximum volume level for zone 2 This is very useful if you are using speakers that can t handle the maximum power output from your external amplifier or if you simply wish to limit the volume that can be achieved using normal front panel or remote operation If you have chosen zone 2 level control fixed then this setting becomes the fixed level for zone 2 If you have ...

Страница 48: ...Z2 Level Control Variable adjust parameter WARNING Connecting a tape recorder to V2 in LINE mode can cause speaker damage set desired product ID VOLUME KNOB REW or FF 2 move to Zone 2 Zone ID UP or DOWN PAUSE or STOP 1 Action From Front Panel From Remote V2 Output V2 output is normally set up as a tape loop The V2 and Z2 output are the current source V1 TV V3 CD DVD etc except when the current sel...

Страница 49: ...4 move to Power On Line 1 UP or DOWN PAUSE or STOP 3 activate ADVANCED POWER ON TITLES ENTER SEL or ENTER 2 move to Power On Titles UP or DOWN PAUSE or STOP 1 Action From Front Panel From Remote CONTROL OUT SETUP Your receiver s control outputs allow you to control up to 4 external devices such as power amplifiers projection screens etc The control outputs can be programmed on off depending on whi...

Страница 50: ... on when that source is selected in zone 1 zone 2 or both zones If the source is selected in neither zone the control out will be off Control outs 2 3 and 4 can also be set to REMOTE In REMOTE mode your receiver acts like a remote repeater IR remote signals detected by your receiver are repeated on the control out REMOTE mode is a global override for all sources 9 21 CONTROL OUT SETUP for DVD move...

Страница 51: ... FACTORY RESET Should you ever need to completely reset the receiver to the original factory settings from the front panel press the SLEEP DOWN and LEVEL buttons simultaneously The receiver will perform a complete reset and erase all user programmed presets menu settings and the memory backup if you have performed one 48 p n 12699 Rev 9812C ...

Страница 52: ...eaker setup 5 Speakers phase wrong Surround sound does not sound correct 1 Check all connectors and repair as necessary 2 Check ground of outlet Have it checked by qualified serviceman 3 Check ground 4 Reposition cables 1 Poor ground connection in interconnect cables 2 Poor ground in main AC supply 3 Poor ground on cable box 4 Cables running across back of TV Loud hum or buzz on one or more channe...

Страница 53: ...apture Ratio 28 dBf Sensitivity 20 Hz 15 kHz 1 3 dB Frequency Response Less than 0 3 Total Harmonic Distortion Less than 0 25 Total Harmonic Distortion 520 1670 kHz Frequency Range 87 5 107 9 MHz Frequency Range AM section Tuner Specifications FM Section Tuner Specifications 80 Hz 24dB per octave Low Pass Crossover 80 Hz 12dB per octave High Pass Crossover 1 1 Digital Outputs coax optical 7 5 Digi...

Страница 54: ...tion Auto Dolby Digital DTS 5 1 overrides MODE setting 2 Stereo Operation Normal STEREO MODE is digital Front L R speaker size move to new line adjust parameter previous page M E N U from speaker setup menu SPEAKER SIZE SETUP 1 Front L R 2 Center 3 Rear L R 4 Subwoofer 5 LFE 6 Center Delay move to new line adjust parameter previous page M E N U 7 Rear Delay Small Small Small Yes Normal 0ms 0ms SPE...

Страница 55: ...REAR PANEL ENLARGED VIEW 52 p n 12699 Rev 9812C ...

Страница 56: ... 2 Center 3 Rear L R 4 Subwoofer 5 LFE 6 Center Delay 7 Rear Delay ms ms SPEAKER CALIBRATION 1 Left 2 Center 3 Right 4 Right Rear 5 Left Rear 6 Subwoofer dB dB dB dB dB dB SOURCE LEVEL DEFAULT USER LEVEL dB CD dB DVD dB TAPE dB SAT dB TV V3 dB V1 dB V2 dB TUNER ...

Страница 57: ...nel 9 Channel 10 Channel 11 Channel 12 Channel 13 Channel 14 Channel 15 Channel 16 Channel 17 Channel 18 Channel 19 AM TUNER SETTING Channel 0 AM AM AM AM AM AM AM AM AM AM AM AM AM AM AM AM AM AM AM AM Channel 1 Channel 2 Channel 3 Channel 4 Channel 5 Channel 6 Channel 7 Channel 8 Channel 9 Channel 10 Channel 11 Channel 12 Channel 13 Channel 14 Channel 15 Channel 16 Channel 17 Channel 18 Channel ...

Страница 58: ... defect in material or workmanship of the unit during the terms of this warranty or thereafter Some States do not allow the exclusion or limitation of incidental or consequential damages and the foregoing exclusions may not apply to you This warranty gives you specific legal rights Your may also have other rights which vary from State to State No agent representative dealer or employee of B K has ...

Страница 59: ...NOTES 56 p n 12699 Rev 9812C ...

Страница 60: ...B K Components Ltd 2100 Old Union Road Buffalo New York 14227 716 656 0023 www bkcomp com 57 p n 12699 Rev 9812C ...

Отзывы:

Нет отзывов

Похожие инструкции для AVR101

Бренд: Jensen Страницы: 110

Бренд: Denon Страницы: 14

Бренд: FTE Maximal Страницы: 44

VM8013HD - Screen MultiMedia Receiver

Бренд: Jensen Страницы: 3

Бренд: Icom Страницы: 32

Бренд: Audi Страницы: 35

Бренд: Tecsun Страницы: 12

Бренд: Lanzar Страницы: 8

Бренд: Xantech Страницы: 3

Бренд: Icom Страницы: 54

Бренд: MFJ Страницы: 16

Бренд: Aiwa Страницы: 33

Бренд: steute Страницы: 28

Бренд: Videotec Страницы: 124

Бренд: GAMA Electronics Страницы: 5

Бренд: HTRONIC Страницы: 24

Бренд: Boss Audio Systems Страницы: 42

Бренд: Carver Страницы: 37

Бренды по названию

0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Популярные бренды

Загрузить еще бренды