background image

HT-DP3000

– 18 –

A

B

C

D

E

F

G

H

1

2

3

4

5

6

Figure 18 WIRING OF P.W.BOARD (2/7)

R748

R716

R785

R784

R796

R797

R798

R783

R710

R708

R726

R728

R706

R788

D621

R718

C749

C782

C783

C706

C712

C704

C716

IC705 

IC702 

IC703

L705

– 

D630

L702

C467

C472

C483

C477

C474

C475

C478

C458

C460

C496

C495

C492

C479

C480

C583

1 2 3 4

8 7 6 5

C584

C587

C588

C586

C459

C577

C455

C453

C484

C485

C488

C489

C487

C486

C490

C491

C493

C457

C463

C569

C570

C578

C430

C431

C436

C434

C433

C432

C562

C561

C623

B
C
E

E
C
B

1
2
3

R589

R58

6

5

4

3

2

1

R590

R459

R471

R472

R460

R435

R434

R433

R566

R598

R440

R432

R622

R621

ZD621 

R555C 

R554B 

CN

IC581 

IC431 

CNP1B 

IC561 

Q622

R437

R436

R734

C722

R751

C746

Q782

Q781

R795

C791

C790

C634

ZD630 

R620

R704

C708

R702

R781

C784

R782

C630

C631

D622

D624

C620

C621

D623

R789

C788

R793

R594

IC452 

C635

23

22

21

20

19

18

17

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

C622

C566

R554C 

C567

D452

C624

R596

C470

C468

R465

R474

R475

R476

R623

R787

R714

R747

C633

D708

D702

C748

D704

R570

1 2 3 4

8 7 6 5

R568

R564

D451

C464

R464

C466

C465

C476

C789

C427

R753

C720

R600

C497

C494

C568

C570C 

C565

C564

R438

1 2 3 4

8 7 6 5

C570B 

C471

R461

C429

C428

Q784

E  C  B

E  C  B

E  C  B

3  2  1

3  2  1

3  2  1

3  2  1

Q706

Q621

R791

C786

C785

R792

C787

C714

R752

C747

BI602

D625

C702

C781

11

10

9

8

7

6

5

4

3

1

2

BI581

CNP5

R53

Q532

R533

C554

R794

X451

R749

Q754

Q752

Q751

R754

C745

R730

R469

R470

C469

R562

R561

R565

R563

R567

C563

C569C

R569

R462

R463

C473

C456

C454

1

5

16

10

15

20

25

30

35

40

45

50

55

60

17

32

33

48

49

64

C462

C461

C581

C585

11

10

9

8

7

6

5

4

3

1

2

8

7

6

5

4

3

1

2

CNS

FROM TUN

P17 

CNP581

TO HEADPHONES

PWB

P20 1-H

CNS5

FROM DISPLAY PWB

P21 12-A

CNP1A

TO DISPLAY PWB

P21 8-D

BK
BK

WH

BK
BK

1
2
3
4
5

CNP602

TO POWER PWB

P21 10-H

1
2
3
4
5
6
7

CNS581

CNS602

1

5

BK
BK
BK
BK
BK
BK
BR

FC1

MAIN PWB-A1

1

7

B C

23

1

Содержание HT-DP3000

Страница 1: ...ly The contents are subject to change without notice CP SR3000 CP F3000 CP SW3000 CP C3000 HT DP3000 CP F3000 CP SR3000 Manufactured under license from Dolby Laboratories Licens ing Corporation DOLBY the double D symbol and PRO LOGIC are trademarks of Dolby Laboratories Licensing Corporation HT DP3000 home theater system consisting of HT DP3000 home theater system CP F3000 CP SW3000 CP C3000 and C...

Страница 2: ... the audio product to the owner TO EXPOSED METAL PARTS CONNECT TO KNOWN EARTH GROUND TEST PROBE 0 15 µ F 1 5k ohms 10W VTVM AC SCALE General Type Home theater system Power source AC 120 V 60 Hz Power consumption 110 W Dimenslons Width 16 15 16 430 mm Height 4 5 8 116 mm Depth 12 11 16 322 mm Weight 13 7 lbs 6 2 kg Output power Front 25 watts minimum RMS per channel into 8 ohms from 100 Hz to 20 kH...

Страница 3: ...al 23 Antenna Ground Terminal 24 FM Antenna Terminal 25 VCR 1 Input Output Sockets 26 VCR 2 Aux Input Sockets 27 Surround Speaker Socket 28 Front Center Speaker Sub Woofer Socket 29 AC Power Cord Remote Control 1 Remote Control Transmitter LED 2 Dolby Pro Logic Button 3 Eqalizer Button 4 Extra Bass Button X BASS 5 Preset Balance Button 6 Balance Buttons 7 Test Tone Button 8 Center level Buttons 9 ...

Страница 4: ...HT DP3000 4 CP C3000 CP SR3000 CP SW3000 1 Woofer 2 Speaker Cord 1 Woofer 2 Speaker Cord 1 Woofer 2 Bass Reflex Duct 3 Speaker Cord CP F3000 1 Tweeter 2 Woofer 3 Speaker Cord 1 2 3 1 2 2 1 3 1 2 ...

Страница 5: ...n incluidas 8 20 0 2m 6m 0 2m 6m Speaker wire x 1 Surround speakers Cable de altavoz x 1 Altavoces de sonido perimétrico 15 15 1 2 3 AM Loop Antenna Antena de cuadro de AM FM Antenna Antena de FM RIGHT DERECHO LEFT IZQUIERDO FRONT SPEAKER ALTAVOZ FRONTAL Black Negro With a white line Con la línea blanca Black Negro With a white line Con la línea blanca Black Negro With a white line Con la línea bl...

Страница 6: ... AUX VCR 1 VCR 2 AUX POWER 5 Switch the audio signals Cambio entre señales de audio 6 Listening to the radio Audición de la radio Press the TUNING UP or DOWN button to tune in to the desired station Pulse el botón TUNING por arriba o abajo para sintonizar la emisora deseada 3 Set the POWER button on the main unit to ON Ajuste el botón POWER de la unidad principal en ON 1 Press the TUNER BAND butto...

Страница 7: ... the power supply plug from the wall outlet before starting to disassemble the unit 3 Take off nylon bands or wire holders where they need be removed when disassembling the unit After servicing the unit be sure to rearrange the leads where they were before disassembling 4 Take suff cient care on static electricity of integrated circuits and other circuits when servicing DISASSEMBLY Figure 7 2 Figu...

Страница 8: ...L R L R L R JK401 AUIDO INPUT OUTPUT MUTING Q411 Q412 L R L R AMP IC411 NJM4565D BUFFER AMP 5 6 2 3 4 8 A 12V A 12V GRAPHIC EQUALIZER L L L R R R VOLUME VOLUME IC501 LC75396N AUDIO PROCESSOR LTIN RTIN CENTER REAR IN FRONT IN L R R L L R R L DI CE CL VSS VDD C OUT L MIX OUT R MIX OUT S OUT L IN R IN S IN C IN L OUT R OUT VCR1 VCR2 TUNER AUX VCR1 IN VCR1 OUT VCR2 IN 4 5 44 43 42 16 33 34 17 31 20 28...

Страница 9: ...3 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 TUN DO TUN DI TUN CK TUN CE TUN MUTE TUN SD TUN ST VDD OSC2 OSC1 VSS XI XO MMOD VREF KEY1 KEY2 KEY3 AREA SP LEVEL MODEL POSISTER RESET V DATA POW SW R RLAY C RLAY PROTECT FAN LED1 1G 2G 3G 4G 5G 6G 7G 8G 9G 10G P1 P2 P3 P4 P5 P6 P7 P8 P9 P10 P11 P12 P14 P15 P16 NC NC NC NC DAPD ADPD AC...

Страница 10: ... DC O DC O D N A VD OS OS CLK DATA ENABLE DATA CLK OSC NS BPF2 NS BPF1 GND C MODE DC OUT LT IN RT IN L BPF3 DC OUT3 R RECT L RECT DC OUT4 DC OUT2 DC OUT1 VLR TH VLR 1 VLR 2 VCR 2 VCR 1 VCR TH L R RECT L R RECT R BPF3 RSELO RINVIN1 R5 R4 R3 R2 R1 VDD L1 L2 L3 L4 L5 LINVIN1 LSELO LF4C1 LF3C3 LF3C2 LF3C1 LF2C3 LF2C2 LF2C1 LF1C3 LF1C2 LF1C LTIN RF4C2 RF4C1 RF3C3 RF3C2 RF3C1 RF2C3 RF2C2 RF2C1 RF1C3 RF1...

Страница 11: ... D GND SW MUTE H P SW V CK V DATA V LATCH F MUTE FRONT L C MUTE R_MUTE A 12V A GND A 12V SW_GND R GND C GND FR GND FL GND L OUT AC GND L IN R IN S IN VCC DET IREF GND S OUT R OUT L OUT DC OUT DC OUT D A NS A D VDD OSC OSC VSS CLK DATA ENABLE DATA LF4C3 LF4C2 LF4C1 LF3C3 LF3C2 LF3C1 LF2C3 LF5 LTOUT LFIN LFCOM LRIN LRCOM VSS CL DI CE LVREF VREF RVREF RROUT RRIN RFOUT RFCOM RFIN RTOUT RF5 RF4C3 RF4C2...

Страница 12: ... D701 1N4148 C750 0 1 R760 4 7 C751 0 1 R778 56K C720 0 1 C722 0 1 R734 4 7 C770 0 1 C771 0 1 R780 4 7 C762 33P C763 100 35 R764 1K C713 10 50 C714 10 50 C712 10 50 C767 10 50 C766 10 50 R726 22 R728 22 L702 0 3µH C717 47 50 R731 56K Q708 KTC3199 GR Q707 KTC3199 GR D703 1N4148 C715 0 022 R717 6 8K R729 56K R725 22 R727 22 L701 0 3µH C746 10 50 C747 10 50 C742 33P R747 0 2 C749 47 50 C743 100 35 Q7...

Страница 13: ...GR R622 47 R611 1 C611 100 50 C613 47 63 C612 100 50 R612 1 D611 1N4004 D612 1N4004 D613 1N4004 D614 1N4004 ZD611 MTZJ330C R613 2 2K R614 100 C614 220 63 R617 220 C617 100 35 R615 12K Q611 KTA1266 GR C616 47 50 R616 220 VF_ POW_1 POW_2 D_GND POW_SW VPP VF1 µ COM5V SP SUB WOOFER SP SUB WOOFER GND SP CENTER GND SP CENTER SP REAR Rch SP REAR Rch GND SP REAR Lch GND SP REAR Lch 1 2 3 4 5 6 7 8 1 2 3 4...

Страница 14: ...L SP_LEVEL AREA VREF MMOD OSC1 OSC2 V_DATA V_CK V_LATCH RESET TUN_MUTE TUN_SD F_MUTE POWER SYS_STOP REMOCON VDD KEY3 KEY2 KEY1 VSS XO XI 75 74 73 72 71 70 69 68 67 66 65 64 63 62 1 6 60 59 58 57 56 55 54 53 52 51 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 21 0 2 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 25 24 3 2 22 38 37 36 35 30 29 28 27 26 34 33 32 31 VREF 0V 5V 0V ...

Страница 15: ...LEEP C B A 1G 1G F2 F2 TIMER LED DOLBY PROLOGIC LED1 CD AUX VOLUME DOWN ENTER VCR 1 X BASS TUNING DOWN TUNING UP MEMORY SET VOLUME UP PROTECT POSISTOR SW_MUTE C_MUTE JOG_UP JOG_DOWN ALC V_DATA V_CK V_LATCH F_MUTE POWER SYS_STOP REMOCON 54 53 52 51 25 24 23 22 38 37 36 35 34 3 H P MUTE 2 1 LED2 L1154HDB R42 1K 1 1 2 2 3 3 0V 0V 0V 0V 1 2 3 1 2 3 1 2 3 R154 1K R153 1K R152 1K R151 1K 42 4 8V 4 8V 4 ...

Страница 16: ...IF MPX C231 22P C232 0 001 C275 100 10 C276 0 022 C230 0 022 CF203 AM IF C228 0 1 R238 2 2K C262 15P C261 12P X202 4 5MHz AM_ANT FM_ANT FM OUT AM OUT SD AM OSC IN VSM IF OUT VCC REQ TP302 X OUT X IN VSS A OUT A IN PD VDD FM IN AM IN IF IN IO1 BO4 DO CL DI CE AM OSC OUT AM RF IN AM IF AM MIX AM FM FM AFC FM DET FM IF IN GND STEREO PHASE L CH R CH MPX IN 9 8 7 6 5 4 3 2 1 9 8 7 6 5 4 3 2 1 9 10 16 1...

Страница 17: ... C222 C221 C224 C237 C248 C244 C272 VD201 1 VD201 2 T203 L201 T202 L202 IC203 CF203 T204 3 2 1 CNS201 SOC201 ANTENNA TERMINAL IC202 X202 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 C208 C264 C213 D202 C247 R253 C232 C231 R221 R209 R239 R240 C274 C270 L203 R210 R208 VD202 C281 T201 Q202 C252 C250 R230 C243 C218 CF201 Q201 R204 C251 C202 C239 TP301 C254 C253 C242 J202 R244 R207 R213 L20...

Страница 18: ...23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 C622 C566 R554C C567 D452 C624 R596 C470 C468 R465 R474 R475 R476 R623 R787 R714 R747 C633 D708 D702 C748 D704 R570 1 2 3 4 8 7 6 5 R568 R564 D451 C464 R464 C466 C465 C476 C789 C427 R753 C720 R600 C497 C494 C568 C570C C565 C564 R438 1 2 3 4 8 7 6 5 C570B C471 R461 C429 C428 Q784 E C B E C B E C B 3 2 1 3 2 1 3 2 1 3 2 1 Q706 Q621 R791 C78...

Страница 19: ...516 R406 R747 R713 C632 C518 D706 R624 C513 C550 R502 R520 R518 R516 R514 R512 C414 R418 C438 C553 R555B C406 E C B E C B C545 C547 C543 C537 C541 D501 C504 R438 2 3 4 7 6 5 C405 R448 R717 C715 C437 E C B B C E E C B E C B 3 2 1 3 2 1 3 2 1 3 2 1 Q774 Q412 R752 C747 R720 C713 C743 R733 C707 R729 C721 C719 L701 R727 R725 R479 R480 C435 C569B R430 R552 R551 R553 R550 ZD632 R626 R627 C641 C701 C741 C...

Страница 20: ...8 R75 C3 C4 D604 D614 D613 D612 D611 D603 C613 Q603 C611 C612 CNP4 R612 R611 ZD612 C617 R615 Q601 C616 C602 C601 C614 1 2 3 4 5 6 7 8 R617 R616 R604 R603 R613 R614 Q611 C615 ZD611 C605 C604 C607 ZD601 C606 ZD602 Q602 D607 R606 R605 1 2 3 4 5 J581 HEADPHONES D4 D7 CNP581 D601 D602 C610 R610 C609 C618 C619 Q12 R158 Q11 R157 R156 R41 R40 R90 Q4 D1 C12 R138 C13 Q8 Q13 Q7 R145 LED1 STAND BY ZD1 R608 R6...

Страница 21: ...R1 CNP1A Q5 C1 7 L1 IN OUT GND R122 T601 RANSFORMER BI601 T602 POWER TRANSFORMER CNP602 1 2 3 4 5 6 7 1 2 R601 C5 R125 R71 R69 R165 R164 R163 R162 C3 C4 BI5 1 2 3 EMORY SET TIMER SLEEP EQUALIZER F611 800mA 125V POWER B PWB C3 POWER A PWB C2 DISPLAY PWB C1 FC1 CNP1B TO MAIN PWB P18 1 E CNS602 FROM MAIN PWB P18 1 G CNP601 2 2 1 1 CNS601 1 2 3 4 5 CNP603 A B C SUB WOOFER VOLUME 1 3 CNP5 TO MAIN PWB P...

Страница 22: ... C4 D604 D614 D613 D612 D611 D603 C613 Q603 C611 C612 CNP4 R612 R611 ZD612 C617 R615 Q601 C616 C602 C601 C614 1 2 3 4 5 6 7 8 R617 R616 R604 R603 R613 R614 Q611 C615 ZD611 C605 C604 C607 ZD601 C606 ZD602 Q602 D607 R606 R605 1 2 3 4 5 J581 HEADPHONES D4 D7 CNP581 D601 D602 C610 R610 C609 C618 C619 Q12 R158 Q11 R157 R156 R41 R40 R90 Q4 D1 C12 R138 C13 Q8 Q13 Q7 R145 LED1 STAND BY ZD1 R608 R607 REMOC...

Страница 23: ... CNP1A Q5 C1 7 L1 IN OUT GND R122 T601 RANSFORMER BI601 T602 POWER TRANSFORMER CNP602 1 2 3 4 5 6 7 1 2 R601 C5 R125 R71 R69 R165 R164 R163 R162 C3 C4 BI5 1 2 3 EMORY SET TIMER SLEEP EQUALIZER F611 800mA 125V POWER B PWB C3 POWER A PWB C2 DISPLAY PWB C1 FC1 CNP1B TO MAIN PWB P18 1 E CNS602 FROM MAIN PWB P18 1 G CNP601 2 2 1 1 CNS601 1 2 3 4 5 CNP603 A B C SUB WOOFER VOLUME 1 3 CNP5 TO MAIN PWB P18...

Страница 24: ...ch section is the one measured by Digital Multimeter between such a section and the chassis with no signal given 1 In the tuner section indicates AM indicates FM stereo 2 In the main section VCR1 3 In the power section VCR1 Parts marked with are important for maintaining the safety of the set Be sure to replace these parts with specified ones for maintaining the safety and performance of the set S...

Страница 25: ...lindrical type without lead wire VC TV Square type without lead wire VC TQ Square type without lead wire VC CY Square type without lead wire VC CZ Square type without lead wire VC J The 13th character represents capacity difference J 5 K 10 M 20 N 30 C 0 25 pF D 0 5 pF Z 80 20 If there are no indications for the electrolytic capacitors error is 20 Resistors VRD Carbon film type VRS Carbon film typ...

Страница 26: ...DB1F J AH LED Red L1154HDB VD201 VHCKV1236Z23F J AS Variable Capacitance KV1236Z23F VD202 203 VHCKDV147C 1 J AH Variable Capacitance KDV147C ZD1 VHEMTZJ3R9B 1 J AC Zener 3 9V MTZJ3 9B ZD201 VHEMTZJ5R1B 1 J AC Zener 5 1V MTZJ5 1B ZD601 VHEMTZJ6R8A 1 J AA Zener 6 8V MTZJ6 8A ZD602 VHEMTZJ5R6B 1 J AD Zener 5 6V MTZJ5 6B ZD611 VHEMTZJ330C 1 J AB Zener 33V MTZJ33C ZD612 VHEMTZJ6R8C 1 J AA Zener 6 8V MT...

Страница 27: ...rolytic C473 VCQYKA1HM823J J AC 0 082 µF 50V Mylar C474 VCKYPA1HB332K J AA 0 0033 µF 50V C475 VCQYKA1HM823J J AC 0 082 µF 50V Mylar C476 RC GZA227AF1C J AB 220 µF 16V Electrolytic C477 VCKYPA1HB681K J AA 680 pF 50V C478 VCTYPA1CX473K J AA 0 047 µF 16V C479 VCKYPA1HF223Z J AB 0 022 µF 50V C480 RC GZA474AF1H J AA 0 47 µF 50V Electrolytic C483 RC GZA476AF1H J AB 47 µF 50V Electrolytic C484 RC GZA474A...

Страница 28: ...470J J AA 47 ohms 1 4W R149 VRS TV2AB151J J AA 150 ohms 1 10W R150 VRS TV2AB222J J AA 2 2 kohms 1 10W R151 154 VRS TV2AB102J J AA 1 kohm 1 10W R156 VRS TV2AB472J J AA 4 7 kohms 1 10W R157 VRS TV2AB103J J AA 10 kohm 1 10W R158 VRS TV2AB223J J AA 22 kohms 1 10W R162 VRS TV2AB473J J AA 47 kohms 1 10W R163 165 VRS TV2AB103J J AA 10 kohm 1 10W R170 VRS TV2AB102J J AA 1 kohm 1 10W R175 VRD ST2EE562J J A...

Страница 29: ...ms 1 6W R752 VRD ST2CD273J J AA 27 kohms 1 6W R753 VRD ST2CD472J J AA 4 7 kohms 1 6W R754 VRD ST2CD104J J AA 100 kohm 1 6W R756 757 VRD RT2HD220J J AA 22 ohms 1 2W R758 VRD ST2CD563J J AA 56 kohms 1 6W R760 VRD RT2HD4R7J J AA 4 7 ohms 1 2W R761 VRD ST2CD102J J AA 1 kohm 1 6W R762 VRD ST2CD332J J AA 3 3 kohms 1 6W R763 VRD ST2CD122J J AA 1 2 kohms 1 6W R764 VRD ST2CD102J J AA 1 kohm 1 6W R765 VRD S...

Страница 30: ...2000 J AA Screw ø3 12mm ACCESSORIES QANTL0001SJZZ J AK AM Loop Antenna QANTW0001SJZZ J AH FM Wire Antenna QCNWG0001SJZZ J AX Front Center Speaker Sub Woofer Cord Ass y QCNWG0002SJZZ J AX Surround Speaker Cord Ass y QCNWG0003SJZZ J AR Connecting Cord RCA Type Audio TINSE0016SJZZ J AG Operation Manual TINSZ0021SJZZ J AD Quick Guide For U S A Only 9GDYFY910Q016 J AE Label Feature Front Speaker RRMCG0...

Страница 31: ...2 602x2 605 PWB C2 226 607x8 609 611x5 IC705 IC702 IC703 IC701 IC704 D630 Q622 603 603 225 225 603x2 PWB C1 PWB A3 PWB A2 PWB A1 224 223 FL1 608x2 607 PWB C4 PWB C5 209 604 217 212 2 212 1 212 3 x2 212 4x2 212 216 210 213 214 219 218 Within Volume 211 603x3 604 215 207 603x2 206x2 603x3 603 603x4 610x4 229 228 208 603 PWB B 205 603 204 603x3 612 203 601x9 601x2 601 201 221 x2 ...

Страница 32: ... Figure 7 SPEAKER EXPLODED VIEW 1 3 CP F3000 7 RD BK BK RD Capacitor C1 C2 C1 C2 Capacitor 3 3µF 50V WOOFER SP1 L CH SP2 R CH WOOFER SP1 L CH SP2 R CH TWEETER SP3 L CH SP4 R CH TWEETER SP3 L CH SP4 R CH 702 705 SP1 2 701 704x4 704x2 SP3 4 703 ...

Страница 33: ...HT DP3000 33 CP SW3000 Figure 8 SPEAKER EXPLODED VIEW 2 3 A B C D E F G H 1 2 3 4 5 6 RD BK WOOFER SP1 SP1 705 707x4 704x4 706 703 702 701 708 8 ...

Страница 34: ...HT DP3000 34 A B C D E F G H 1 2 3 4 5 6 Figure 9 SPEAKER EXPLODED VIEW 3 3 CP C3000 9 CP SR3000 RD BK SP1 704x4 701 702 WOOFER SP1 703 705 RD BK WOOFER SP1 2 705x2 704 702 701 703x4 SP1 2 706 ...

Страница 35: ... Woofer SSAKH0005SJZZ Polyethylene Bag Accessories SSAKA0002SJZZ CP F3000 CP SR3000 CP SW3000 CP SR3000 FRONT FRONT Front Speaker Cord Ass y Surround Speaker Cord Ass y Polyethylene Bag Unit SSAKH0002SJZZ FRONT FRONT Polyethylene Bag Accessories SSAKA0002SJZZ AM LOOP Antenna FM Wire Antenna Operation Manual Quick Guide RCA Audio Cord Packing Add Left Right SPAKA0005SJZZ Remote Control Packing Case...

Страница 36: ...trieval system or transmitted in any from or by any means electronic mechanical photocopying recording or otherwise without prior written permission of the publisher A9902 1760NS HA C SC LAG SHARP CORPORATION Communication Systems Group Quality Reliability Control Center Higashihiroshima Hiroshima 739 0192 Japan Printed in Japan ...

Отзывы: