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Kenwood KDC-MP208 - Radio / CD, Руководство по обслуживанию

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Kenwood KDC-MP208 - Radio / CD Скачать руководство пользователя страница 24

24

KDC-MP208/MP238/MP238CR/MP239

KDC-MP3039/MP339/MP339S/MP439

U

V

W

X

Y

1

2

3

4

5

6

7

4

KS3

KS4

RST

SRC

1

2

3

4

5

6

A

UT
O

B

.BOOST

A

UX IN

AM-

FM+

VO

L

AU
D

KI3

KS2

KI2

KI4

KI5

KI1

KS1

3

2

66

18

17

1

1

D2

D5

D7

ED1

J2

D9

D12

D15

D18

D21

S1

S2

S3

S4

S7

S

8

S9

S12

S13

S14

S15

S10

S11

S1
8

S16

S5

S19

S20

S17

D1

D3

D4

D6

D8

D10

D11

D13

D14

D16

D17

D19

D20

D23

IC3

SWITCH UNIT
X16-617x-xx (J76-0455-02)

R61

R34

R33

R78

R75

C15

C10

R74

R70

C21

R72

R81

R80

R18

R19

R11

R16
R15
R14
R13

R17

R96

R32

C25

C24

R23

R22

CP11 CP12

R31

C12

C11

R21

R62

61

60

80

1

20

21

40

41

11

9

20

2

SW5V

FIL+

FIL-

TDF-DET

A

UX-GND

A

UX-L

A

UX-R

KI2

KI4

KI1

KI5

KI3

KS4

KS1

KS2

GARD

ILL-D-GND

PAN5V

FL+B

ESD-GND

J1

D78

D79

D77

D71

D75
D74
D73

D72

D76

IC1

SWITCH UNIT
X16-617x-xx (J76-0455-02)

PC BOARD 

(COMPONENT SIDE VIEW)

 

(FOIL SIDE VIEW)

Refer to the sche-
matic diagram for 
the values of resis-
tors and capacitors.

X16-617x-xx

Ref. No.

Address

IC1

4X

X16-617x-xx

Ref. No.

Address

IC3

2V

Содержание KDC-MP208 - Radio / CD

Страница 1: ...MP82DCR KDC MP239 Y33 2820 61 TDF MP239 KDC MP3039 Y33 2820 62 TDF MP3039 Panel assy KDC MP239 A64 4282 02 Mounting hardware assy J21 9716 03 Remote controller assy RC xxx A70 xxxx xx Battery Not supplied KDC MP339 Y33 2820 63 TDF MP339 KDC MP339S Y33 2820 64 TDF MP339S Panel assy KDC MP238CR A64 4274 02 Lever D10 4589 04 x2 Screw set N99 1757 05 Screw 4x16 N84 4016 48 DC cord E30 6415 15 Escutche...

Страница 2: ...ANT ANALOG SW IC9 E2PROM SW5 BU MECHA CD CONT SW Q401 A8V A8V PRE OUT MUTE BU5 SW5 F AUX J2 PANEL DET Rx2 1 4W IC1 BU5 SW5 SW14V FL B IC4 POWER SUPPLY IC FL B J3 BU5 IC10 VFD DRIVER Q8 9 Q7 ELECTRIC UNIT X34 SWITCH UNIT X16 VREF 8EJE SW 12EJE SW LOS SW LOE SW MOTOR LO EJ A GND A8V A B C E F TR OUT FO OUT DM OUT FM OUT A3 3V LD SIGNAL S GND S7 5V FO OUT TR OUT DM OUT FM OUT DRV MUTE SO SRAMSTB SI B...

Страница 3: ...CC is applied Q102 Serge DET When the base goes Hi surge voltage is detected Q103 BU DET ON when the base goes Hi during BU is applied Q104 105 Mute Control ON when the base goes Hi Q301 Panel 5V SW ON when the base goes Lo Q401 IC9 Control SW Switches to AUX when the base goes Hi and switches to LX BUS CD CH when the base goes Lo Q402 Quick Charge Voltage SW Charges voltage quickly when the base ...

Страница 4: ... LD Laser Diode Q10 12 5V 3 3V Level Shift Converts signal from 5V to 3 3V or from 3 3V to 5V Q13 Inverter Inverts ZDET signal D1 Level Down Lowers signal level by about 1 2V so that Lo level signal that turns the regulator ON OFF surely becomes Lo judgment level of the regulator SW D2 Laser Diode Protection Prevents reverse bias which is applied to laser Laser destruction prevention D3 4 Static E...

Страница 5: ...t used Output L fixed 24 PON FL O Key illumination power supply control ON H OFF L 25 NC Not used Output L fixed 26 PON PANEL I O Panel 5V control ON L Momentary power down Panel detached Hi Z 11 minutes after ACC OFF Hi Z 27 28 NC Not used Output L fixed 29 AUD SCL I O E VOL clock output 30 AUD SDA I O E VOL data input output 31 VFD SYS DATA O VFD data output 32 VFD PAN DATA I VFD data input 33 V...

Страница 6: ...hen IC2 is in source select Hi Z Mute L L Momentary power down Power OFF L 68 MUTE I O Mute L Mute OFF Hi Z Mute ON 69 ANALOG CON O AUX LX audio switching AUX H Switches after 100ms after first out mute begins to work LX Other source L 70 LX RST O Forced reset to slave unit H Reset L Normal 71 LX CON O Start up request to slave unit H Slave unit ON L Slave unit OFF 72 LX MUTE I Mute request from s...

Страница 7: ...er supply IC control r Refer to the truth value table 93 PS1 2 O Power supply IC control r Refer to the truth value table 94 PS1 3 O Power supply IC control r Refer to the truth value table 95 NC Not used Output L fixed 96 AVSS 97 REF CON O VREF control Connects to VREF 98 VREF 99 AVCC 100 LX DATA S I Data from slave unit Pull down GND MICROCOMPUTER STERMINAL DESCRIPTION Truth value table q CD mot...

Страница 8: ...ng started up in the test mode change the LINE MUTE inhibition time from 10 seconds to 1 second When operating in the test mode even if a DC offset error occurs detection information is not written in the E2PROM When operating in the test mode CD mechanism error log information clear mode and DC offset error detection information clear mode do not perform DEMO mode operations Also do not display D...

Страница 9: ...ed only for displayed media 5 Disc EJECT times display E J C X X X X X Disc EJECT times display MAX 65535 times 5 While disc EJECT times is displayed press and hold for 2 seconds or longer to clear disc EJECT times 6 Panel open close times display P C X X X X X PANEL open close times display MAX 65535 times 6 Press the key for more than 2 seconds while the PANEL open close count is displayed and P...

Страница 10: ...layed in case there is no error E J E R R 2 X X Ejection error switch 2 XX Number of errors is displayed in case there is no error E J E R R 3 X X Ejection error switch 3 XX Number of errors is displayed in case there is no error E J E R R 4 X X Ejection error switch 4 XX Number of errors is displayed in case there is no error CD time code error count data display Missing counts C N T L O S E CD t...

Страница 11: ...switched in the following order AUTO Forced WIDE Forced MIDDLE Forced NARROW AUTO Default status is AUTO and displayed as shown below Key Description of display Description 6 K3I Forced switching F M 1 9 8 1 A AUTO F M 1 9 8 1 W Forced WIDE F M 1 9 8 1 M Forced MIDDLE F M 1 9 8 1 N Forced NARROW FST adjustment mode Perform FST soft mute adjustment Key Note Enter the FST adjustment mode Press for 1...

Страница 12: ... For CD KTD 02A Audio related test mode Procedure Note Press the AUD key main unit Press the AUD and keys Remote control Enter audio adjustment mode the initial item should be Fader and then Balance Bass Level Middle Level Treble Level SW Level System Q V Offset LPF Sub Woofer About audio adjustment items include both Audio Function Mode and Audio Setup Mode Procedure Item Procedure Description Fo...

Страница 13: ...ls Clearing CD mechanism information Service information DC offset error information Clearing E2PROM data Status Display Description While pressing and holding 2 key and 5 key reset start C D O At normal termination C D X At abnormal termination While is displayed power can be ON for 30 minutes This mode is cancelled by resetting The last screen will not be retained Data to be cleared is shown bel...

Страница 14: ...apacitor leaks Clear E2PROM This mode is cancelled by resetting The last screen will not be retained FM AM channel space switching Procedure Note While Power OFF press and hold 1 key and 5 key and press SRC key to Power ON FM200kHz AM10kHz FM50kHz AM9kHz Except KDC MP238CR FM50kHz AM10kHz FM200kHz AM10kHz KDC MP238CR only Security KDC MP238 MP439 only Forced Power ON mode Procedure Note While pres...

Страница 15: ...ving data to the new front end A1 Refer to ROM data transfer processes on the next page for details on front end A1 replacement procedures and on the data to be transferred Procedure Display Description While pressing and holding 1 key and 3 keys reset start All lights ON Press B BOOST key MENU R O M R E A D MENU mode Press key or key R O M R E A D Front end A1 Mother unit X34 Data transfer proces...

Страница 16: ...t data for new front end A1 is supplied as a service part in which data was inserted Data to be copied ROM correction data Other data Security data DEMO MODE ON OFF status POWER ON time For maintenance Playback time For maintenance EJECT count For maintenance Panel open close count For maintenance CD I2C status For maintenance CD offset error code For maintenance CD sound skips count For maintenan...

Страница 17: ...ress key Exit ROM data transfer mode Turn power off Remove front end A1 FRONT END A1 E2PROM Mother unit X34 r Install new front end A1 No ROM correction or other data status FRONT END A1 E2PROM E2PROM Mother unit X34 t Turn power on Press and hold the 1 and 3 keys and press reset button Enter the system in the test mode Press B BOOST key Start transferring ROM data Press or Select WRT Press key fo...

Страница 18: ...as been updated with ROM correction FRONT END A1 E2PROM E2PROM Mother unit X34 w Turn power on Press and hold the 1 and 3 keys press reset button Enter the system in the test mode Press B BOOST key ROM data System enters data transfer mode Press or Select WRT Press key for 1 second or longer Data transfer FRONT END A1 E2PROM E2PROM Mother unit X34 e WRT OK1 W O1 In case of 4 In case of 5 Press key...

Страница 19: ...n or other data status FRONT END A1 E2PROM E2PROM Mother unit X34 t Turn power on Press and hold the 1 and 3 keys press reset button Enter the system in the test mode Press B BOOST key Enter the system in ROM data transfer mode Press or Select WRT Press key for 1 second or longer Data transfer FRONT END A1 E2PROM E2PROM Mother unit X34 y WRT OK W OK Press key Exit ROM data transfer mode ROM DATATR...

Страница 20: ...W33 W35 W31 W56 W53 W102 W65 R331 R202 R205 R206 R218 R225 R227 R318 R956 C11 C9 R105 R306 R317 R340 R406 R598 TH1 C811 C3 C4 C12 C14 C101 C102 C202 C203 C204 C205 C809 C812 C807 C813 C814 C820 R17 R104 R108 R111 R113 R115 R201 R203 R321 R226 R228 R229 R320 R315 R409 R803 R806 R808 R952 R34 1 2 C816 C815 C818 C819 R12 R13 R14 R16 R110 R114 R971 R204 R223 R301 R957 R303 R316 R305 R307 R313 R310 R31...

Страница 21: ... W81 W80 W84 W82 W87 W86 W83 W76 W701 W72 C510 R405 R502 R504 C405 C813 C814 R604 R803 R347 19 20 C306 C307 C601 C602 C818 C311 C310 C817 R348 R349 R701 R702 R707 R708 R802 R958 C509 R491 R492 R404 R793 1 1 16 9 1 1 3 1 24 8 4 5 8 20 15 14 11 10 B E B E B E B E B E 1 5 7 6 10 9 13 11 12 8 4 3 2 B E B E J3 A1 J2 J4 J5 D603 D306 D304 D305 P1 D602 D601 D604 D605 D606 CN4 Q705 Q401 Q701 Q702 Q703 Q704...

Страница 22: ...2 3 4 5 6 7 R219 R220 R223 C100 R61 C44 C49 C52 C61 C41 C53 C62 C64 C91 C25 R48 R49 R50 C39 C50 C51 C33 C34 X1 R45 R60 C103 S1 S2 S3 D4 CD PLAYER UNIT X32 5970 02 J76 0443 02 Refer to the schematic diagram for the values of resistors and capacitors PC BOARD COMPONENT SIDE VIEW ...

Страница 23: ...228 R227 R229 R230 R233 R240 C97 C24 C54 C63 C71 C58 C90 R59 C69 C68 R51 C89 R52 C21 C27 C35 C45 C46 R23 C60 R241 R248 R243 C96 C102 C30 C31 C32 C38 C72 CP7 R32 R38 R55 R252 R216 R217 C20 C22 C26 C36 C47 C48 R246 R27 R20 R21 R22 R25 R26 C87 C88 R29 R30 R31 R33 R34 R35 R36 R37 C23 R83 R46 R82 R247 R40 R41 R28 C94 C95 MOTOR LO EJ BU5V A GPIN IPF CCE PIO0 1 3 5 4 5 4 1 3 G I 15 30 16 50 51 100 BE S G...

Страница 24: ...X16 617x xx J76 0455 02 R61 R34 R33 R78 R75 C15 C10 R74 R70 C21 R72 R81 R80 R18 R19 R11 R16 R15 R14 R13 R17 R96 R32 C25 C24 R23 R22 CP11 CP12 R31 C12 C11 R21 R62 61 60 80 1 20 21 40 41 1 19 20 2 SW5V FIL FIL TDF DET AUX GND AUX L AUX R KI2 KI4 KI1 KI5 KI3 KS4 KS1 KS2 GARD ILL D GND PAN5V FL B ESD GND J1 D78 D79 D77 D71 D75 D74 D73 D72 D76 IC1 SWITCH UNIT X16 617x xx J76 0455 02 PC BOARD COMPONENT ...

Страница 25: ...19 18 17 16 15 MIX VREF SAOUT SAIN VDD SDA SCL MUTE OUTLF OUTLR OUTRR OUTRF OUTSW GND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 ACOUTR ACINR ACINL ACOUTL SE3L SE3R SE2L SE2R SE1L SE1R DIFFL DIFFG DIFFR CREF 20 19 18 17 16 15 14 13 12 11 VDD SDA SCL MUTE OUTLF OUTLR OUTRR OUTRF OUTSW GND 1 2 3 4 5 6 7 8 9 10 SE3L SE3R SE2L SE2R SE1L SE1R DIFFL DIFFG DIFFR CREF 1u50 C403 0 R971 FL RL RR FR L R GND RL FL RR F...

Страница 26: ...BUCK CD LOS SW PIO0 CD MSTOP SRAMSTB EPM CD LOE LIM SW PON CD CD LOEJ CD MOTOR VFD CE CD DRIVEMUTE CD CCE NC CD MRST LX DATA M LX CLK NC NC NC REMO NC BYTE CNVSS XCIN XCOUT RESET XOUT VSS XIN VCC1 NMI PANEL DET NC NC ROMCOR DET NC NC PON FL NC PON PANEL NC NC AUD SCL AUD SDA 35 36 37 38 39 40 42 43 44 45 46 47 48 50 33 32 31 34 47K R335 R223 2 2 R228 R226 R225 47K 1000P C205 93 94 92 91 90 87 100 ...

Страница 27: ... MUTE LX CON LX RST ANALOG CON MUTE PON EXT GND TUN IFC OUT NC VSS NC VCC2 NC NC NC NC ROTARY CW ROTARY CCW CD DISC12 SW CD MUTE NC NC NC NC CD MRST 56 55 54 57 50 66 71 70 75 73 72 69 68 67 77 78 100K R220 100K R219 22K R218 R223 2 2K 1000P C205 2 1 SERVO B SERVOGND 10K R117 W5 R961 680 R16 0 R952 C15 2 7K R17 22u16 1 2W R11 R12 0 1 2W 10 1 2W 10 R14 R13 R15 1 2W 10 10 1 2W 10 FL B ILL B 22u16 C2...

Страница 28: ...S2 S3 S8 S5 S6 S7 S9 S10 S11 S15 S12 S13 S14 S16 TP47 TP46 TP49 TP48 1 C21 FL B FL B 220 R13 220 R15 1 C10 28 27 32 30 29 31 34 33 36 35 40 38 37 39 41 43 42 58 47 45 44 46 50 48 49 52 51 53 54 55 57 56 61 59 60 63 62 64 TP165 R80 24 65 66 12 13 5 10 11 9 7 8 6 4 2 3 1 S8 S7 S9 S10 S13 S11 S12 S14 S15 S6 S5 S29 S41 S50 S51 S52 S49 S47 S48 S45 S46 S44 G3 S43 G1 S42 G3 S39 S38 S37 S36 S35 S33 S31 S3...

Страница 29: ...0 P2 P9 1GA P8 P7 P6 P5 P4 P3 F P1 F P43 P44 P45 P46 P47 P48 P49 VOL ILLUMI TP172 TP174 No 13 18 21 B30 1779 05 B30 1781 05 B30 1781 05 B30 1779 05 B30 1780 05 B30 1779 05 B30 1780 05 B30 1779 05 B30 1780 05 B30 1780 05 B30 1566 05 R61 E8 KDC W241AY E9 KDC W241GY K1 KDC MP238CR M4 KDC MP339 KDC W3041G GY E1 E5 KDC MP239 M2 KDC W312G GY E3 E7 KDC W3041A AY KDC MP339S E E4 M5 KDC W312A AY E2 E6 B30 ...

Страница 30: ... NIS 3 R220 4 7K C87 2200P R223 10K 45 C97 0 1 DGN 10K R216 PIO0 AOUT2 AOUT3 PIO2 48 50 49 PIO1 47 46 IRQ 24 25 4 7K R239 C100 1 34 TEST BUCK BUS3 BUS2 BUS1 BUS0 SRAMSTB VDDM1 VDD1 2 44 43 CCE 42 41 40 37 39 38 RST 36 35 VSS2 VDDT3 1 DVSS3 2 DVDD3 DVSS3 1 33 32 31 30 29 LO DVR 28 27 26 RO XVDD3 XO C54 1 22P C23 27K R23 5 6K R22 SLD SLD SLED OUT LOAD EJECT SLED IN SPDL SPDL SPDL SPDL 16 17 14 15 MR...

Страница 31: ...1 C32 0 01 3300P C34 0 1 A3 3V RFI AGND Vref ARF VSS1 18 19 20 21 22 23 24 25 TEST BUCK BUS3 BUS2 BUS1 BUS0 SRAMSTB VDDM1 VDD1 2 CCE RST VSS2 VDDT3 1 DVSS3 2 DVDD3 DVSS3 1 LO DVR RO XVSS3 XVDD3 XO XI IO0 IO1 FGIN C54 1 C53 0 1 16 934MHz X1 C52 0 1 10 11 12 13 14 15 16 17 2 VSSP3 VDDP3 VDD1 1 VCOI DMO VREF FMO 6 AVDD3 8 FOO TRO 9 TEZI 7 4 FEI TEI 5 RFRP SBAD 3 92 TESTR VRO RFEQO RFRPI VMDIR RESIN 8...

Страница 32: ...9 6155 15 φ2x8 M1 6x6 0 M1 7x2 5 M2x2 φ2x5 BLK 1 6 WASHER M2x2 φ2x3 5 φ2x6 858 K K 52 F X32 DM1 14 24 DFPC1 28 25 16 29 19 31 26 13 12 10 30 27 42 11 17 18 23 45 38 DM2 1 850 849 806 834 807 44 39 40 15 22 G 55 51 8 33 809 36 33 Jx2 H 5 37 53 2 37 43 43 56 37 F F 37 43 43 E Cx2 41 32 35 Ax2 DPU1 B EXPLODED VIEW CD MECHANISM Parts with the exploded numbers larger than 700 are not supplied ...

Страница 33: ... N24 3015 48 N80 2006 48 N80 2012 43 N83 3005 48 N86 2610 48 N80 3010 48 N83 3005 48 N83 3020 48 N86 2606 48 RC1 242 269 209 266 262 223x2 233x2 D Dx2 Hx2 Ex2 C C Cx2 A F H G 772 D D D B B F J X34 786 732 701 PA1 241 708 253 238 252 705 771 255 257 259 258 256 210 226 725 206 204 237 222 236 221 224 DC1 Batteries for RC1 207 Parts with the exploded numbers larger than 700 are not supplied ...

Страница 34: ...PINPLUG KM1 DC1 1C E30 6415 15 DC CORD FC1 2D E39 0958 05 FLAT CABLE 233 2D F29 0626 04 INSULATING COVER KM1 F1 2D F52 0023 05 FUSE MINI BLADE TYPE 10A 236 2C G01 2987 04 TORSION COIL SPRING 237 2C G01 3096 04 EXTENSION SPRING 238 3C G01 3244 04 COMPRESSION SPRING REL H54 4151 03 ITEM CARTON CASE K H54 4152 03 ITEM CARTON CASE K1 H54 4153 03 ITEM CARTON CASE K2 H54 4159 03 ITEM CARTON CASE M1 H54 ...

Страница 35: ...FB1C105K CHIP C 1 0UF K C68 69 C93 1451 05 CHIP C 0 10UF K C71 C93 1451 05 CHIP C 0 10UF K C72 CK73FB0J106K CHIP C 10UF K C87 88 CK73GB1H222K CHIP C 2200PF K C89 91 C93 1451 05 CHIP C 0 10UF K C94 95 CK73GB1A105K CHIP C 1 0UF K C96 CK73GB1H103K CHIP C 0 010UF K C97 C93 1451 05 CHIP C 0 10UF K C100 101 CK73GB1A105K CHIP C 1 0UF K C102 CK73FB1A225K CHIP C 2 2UF K C103 CK73GB1H153K CHIP C 0 015UF K C...

Страница 36: ...105K CHIP C 1 0UF K C809 CK73GB1A105K CHIP C 1 0UF K C811 CK73GB1A474K CHIP C 0 47UF K C812 CK73GB1A224K CHIP C 0 22UF K C813 CK73GB1A474K CHIP C 0 47UF K C814 CK73GB1A224K CHIP C 0 22UF K C815 CK73GB1A474K CHIP C 0 47UF K C816 CK73GB1A224K CHIP C 0 22UF K C817 CK73GB1A474K CHIP C 0 47UF K C818 CK73GB1A224K CHIP C 0 22UF K C819 820 CK73GB1A105K CHIP C 1 0UF K C901 902 CD04AB1C101M ELECTRO 100UF 16...

Страница 37: ...1 10W R408 RK73GB2A152J CHIP R 1 5K J 1 10W R409 RK73GB2A392J CHIP R 3 9K J 1 10W R491 492 RK73GB2A100J CHIP R 10 J 1 10W K1K2M2 R491 492 RK73GB2A100J CHIP R 10 J 1 10W M3M4M5 R493 RD14BB2C100J RD 10 J 1 6W K1K2M2 R493 RD14BB2C100J RD 10 J 1 6W M3M4M5 R502 RK73GB2A472J CHIP R 4 7K J 1 10W R504 RK73GB2A472J CHIP R 4 7K J 1 10W R598 RK73GB2A223J CHIP R 22K J 1 10W R599 RK73GB2A102J CHIP R 1 0K J 1 1...

Страница 38: ...3 ARM 13 3A D10 4909 03 ARM 14 3B D10 4915 03 ARM 15 2A D10 4916 23 SLIDER 16 3B D10 4914 12 SLIDER 17 2B D10 4588 13 SLIDER 18 2B D10 4917 04 ARM 19 2B D10 4596 24 ARM 22 2A D13 2151 04 GEAR 23 2B D13 2152 04 GEAR 24 3B D13 2153 04 GEAR 25 3B D13 2154 04 GEAR 26 3B D13 2155 04 WORM 27 2B D13 2156 14 GEAR 28 3B D13 2157 04 GEAR 29 2B D13 2158 04 GEAR 30 2B D13 2168 04 GEAR 31 3B D13 2171 04 GEAR 3...

Страница 39: ...ow Measurable Limit Frequency response 1dB 20Hz 20kHz Total harmonic distortion 1kHz 0 01 Signal to Noise ratio 1kHz 105dB Dynamic range 93dB MP3 decode Compliant with MPEG 1 2 Audio Layer 3 WMA decode Compliant with Windows Media Audio Audio section Maximum output power 50W x 4 Full Bandwidth Power at less than 1 THD 22W x 4 Speaker Impedance 4 8Ω Tone action Bass 100Hz 8dB Middle 1kHz 8dB Treble...

Страница 40: ...ampling D A Converter 1Bit Spindle speed 500 200rpm CLV Wow Flutter Below Measurable Limit Frequency response 1dB 20Hz 20kHz Total harmonic distortion 1kHz 0 01 Signal to Noise ratio 1kHz 105dB Dynamic range 93dB MP3 decode Compliant with MPEG 1 2 Audio Layer 3 WMA decode Compliant with Windows Media Audio Audio section Maximum output power 50W x 4 Full Bandwidth Power at less than 1 THD 22W x 4 S...

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