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KRF-V4550D/V4550DE/V4550D-S

SPECIFICATIONS

14-6,Dogenzaka 1-chome, Shibuya-ku, Tokyo, 150-8501 Japan

KENWOOD SERVICE CORPORATION

P.O BOX 22745, 2201 East Dominguez St., Long Beach, CA 90801-5745, U.S.A.

KENWOOD ELECTRONICS CANADA INC.

6070 Kestrel Road, Mississauga, Ontario, Canada L5T 1S8

KENWOOD ELECTRONICS LATIN AMERICA S.A.

P.O BOX 55-2791, Piso 6 plaza Chase, Cl. 47 y Aquilino de la Guardia Panama, Republic de Panama

KENWOOD ELECTRONICS BRASIL LTDA.

Av. Moema, 170-17˚, Andar-Cobertura “B”, Ed. Maximum Service Center, 04077-020
Moema, São Paulo-SP-Brasil

KENWOOD ELECTRONICS U.K. LIMITED

KENWOOD House, Dwight Road, Watford, Herts., WD1 8EB., United Kingdom

KENWOOD ELECTRONICS BELGUM N.V.

Meachelsesteenweg 418, B-1930 Zaventem, Belgium

KENWOOD ELECTRONICS DEUTSCHLAND GMBH

Rembrücker Str. 15, 63150 Heusenstamm, Germany

KENWOOD ELECTRONICS FRANCE S.A.

13 Boulevard Ney, 75018 Paris, France 

KENWOOD ELECTRONICS ITALIA S.p.A.

Via G. Sirtori, 7/9 20129, Milano, ltaly

KENWOOD IBÉRICA S.A.

Bolivia, 239-08020 Barcelona, Spain

KENWOOD ELECTRONICS AUSTRALIA PTY. LTD.

(A.C.N. 001 499 074) 
16 Giffnock Avenue, North Ryde, N.S.W. 2113, Australia

KENWOOD ELECTRONICS (HONG KONG) LTD.

Unit 3712-3724, Level 37, Tower 1, Metroplaza, 223 Hing Fong Road, Kwai Fong N.T., Hong Kong

KENWOOD ELECTRONICS GULF FZE

P.O.Box 61318, Jebel Ali, Dubai, U.A.E.

KENWOOD ELECTRONICS SINGAPORE PTE LTD. 

No. 1 Genting Lane #02-02, KENWOOD Building, Singapore, 349544

KENWOOD ELECTRONICS (MALAYSIA) SDN BHD.

#4.01 Level 4, Wisma Academy Lot 4A, Jalan 19/1 46300 Petaling Jaya Selangor Darul Ehsan
Malaysia

KENWOOD ELECTRONICS (THAILAND) CO., LTD.

2019 New Pechburi Road, Bangkapi, Huaykwang, Bangkok, 10320 Thailand

Note:

Component and circuit are subject to modification to insure best operation under differing local conditions. This manual is based on Europe (E) standard, and provides
information on regional circuit modification through use of alternate schematic diagrams, and information on regional component variations through use of parts list.

AUDIO section

Rated power output during STEREO operation

DIN/IEC (DIN 1 kHz, 0.7%, 4

) ............................... 60 W + 60 W

Effective power output during SURROUND operation

FRONT (1kHz, 0.7% T.H.D. at 4 

 one channel driven)

.................................................................................. 80 W + 80 W

CENTER (1kHz, 0.7% T.H.D. at 4 

 one channel driven)

............................................................................................... 80 W

SURROUND (1kHz, 0.7% T.H.D. at 4 

 one channel driven)

.................................................................................. 60 W + 60 W

Total harmonic distortion

.............................................................. 0.04% (1 kHz, 30W, 4 

)

Frequency response (IHF '66)

CD ............................................. 13 Hz ~ 53 kHz, +0 dB,  –3.0 dB

Signal to noise ratio (IHF’66)

PHONO (MM) ....................................................................... 75 dB
CD ......................................................................................... 91 dB

Input sensitivity / impedance

PHONO (MM) ....................................................... 2.5 mV / 27 k

CD ........................................................................ 200 mV / 47 k

MONITOR IN (VIDEO2/MONITOR) ................... 200 mV / 47 k

Output level / impedance

TAPE REC .............................................................. 200 mV / 1 k

MONITOR OUT (VIDEO2/MONITOR) ................. 200 mV / 1 k

PRE OUT (SUBWOOFER) ........................................ 2 V / 2.2 k

Tone control

BASS ...............................................................

±

10 dB (at 100 Hz)

TREBLE ...........................................................

±

10 dB (at 10 kHz)

DIGITAL AUDIO section

Sampling frequency ...................... 32 kHz, 44.1 kHz, 48 kHz, 96kHz
Input level / impedance / wave length

Optical ............................ (-15 dBm ~ -21 dBm), 660 nm 

±

30nm

Coaxial ................................................................. 0.5 Vp-p / 75 

VIDEO section

VIDEO inputs / outputs

VIDEO (composite) ................................................ 1 Vp-p / 75 

FM tuner section

Tuning frequency range ................................... 87.5 MHz ~ 108 MHz
Usable sensitivity  (DIN at 75 

)

MONO ........................ 1.2 

µ

V/13.2 dBf (40 kHz dev. S/N 26 dB)

STEREO ...................... 45 

µ

V/42.1 dBf (46 kHz dev. S/N 46 dB)

Total harmonic distortion (1 kHz)

MONO ........................................................ 0.2% (65.2 dBf input)
STEREO ..................................................... 0.8% (65.2 dBf input)

Signal to noise ratio (DIN weighted)

MONO ................................... 65 dB (40 kHz dev.65.2 dBf input)
STEREO ............................... 60 dB (46 kHz dev. 65.2 dBf input)

Stereo separation (DIN 1 kHz) .................................................. 36 dB
Selectivity (DIN

±

300 kHz).......................................................... 64 dB

Frequency response ................... (30 Hz ~ 15kHz), +0.5 dB,  –3.0 dB

AM tuner section

Tuning frequency range .................................... 531 kHz ~ 1,602 kHz
Usable sensitivity ............................................... 16 

µ

V / (600 

µ

V/m)

Signal to noise ratio (30% mod. 1 mV input) .......................... 50 dB

GENERAL

Power consumption .................................................................. 220 W

AC outlet

SWITCHED ......................................................  (total 90 W max.)

Dimensions ....................................................................... W : 440 mm

H : 143 mm
D : 400 mm

Weight ........................................................................................ 8.9 kg

Notes
1. KENWOOD follows a policy of continuous advancements in development.  For this reason specifications may be changed without notice.
2. The full performance may not be exhibited in an extremely cold location (under a water-freezing temperature).

Summary of Contents for KRF-V4550D

Page 1: ...L 90W MAX AC 230V 50Hz FM 75Ω GND AM MONITOR PLAY IN PLAY IN REC OUT AUDIO L R MD TAPE1 CD DVD PHONO GND REC OUT FRONT L CENTER SURROUND SUB WOOFER DVD 6ch INPUT R FRONT SPEAKERS CENTER SPEAKERS Knob K29 Front glass B10 3679 12 Panel A60 Knob K29 Knob K29 Knob K29 Knob K29 Knob K27 Pin jack E63 1139 05 Pin jack E63 1080 05 Miniature phone jack E11 0293 05 Power cord bushing J42 0083 05 AC power co...

Page 2: ...1C35DRA4 same function as 1C35DRA ting the Microcomputer crocomputer may malfunction unit cannot be operated ws an erroneous display if the power cord is unplugged he power is ON or due to some other external factor If ppens execute the following procedure to reset the omputer and return the unit to its normal operating on Please note that resetting the microcomputer will clear the con tents of th...

Page 3: ... 1 2 2 2 1 2 1 2 2 2 2 2 IC111 IC111 IC112 IC110 IC110 IC112 6ch INPUT DVD SUB S5 S2 DIG S4 R L MIX S3 LS RS S7 NOSUB ANA S1 REC OUT BUF IC107 ANALOG REC DIGITAL REC D102 A V R for DIR etc A V R 3 3V IC46 J75 DSP Lch Rch Cch LSch RSch SWch IC45 for DSP A V R 5V J1 J1 K1 K2 K4 LSch RSch J2 J7 IC101 or IC102 or CODEC ADC DAC AK4110 IC5 A1 J3 OPTICAL CD DVD COXIAL COXIAL DIGITAL IN AUDIO DIGITAL RECE...

Page 4: ...mum distortion TUNING LEVEL A 98 0MHz MONO 1kHz 40kHz dev 29 2dBf ANT input B MONO 98 0MHz VR1 X07 Adjust VR1 and stop at the point where ED1 TUNED goes on ECTION SELECTOR FM Adjust NO 1 and NO 2 repeatedly 70dBf ANT input DIGITAL IN OPTICAL DVD CD DVD VIDEO VIDEO 2 COAXIAL VIDEO 1 VIDEO 2 PLAY IN REC OUT SYSTEM CONTROL FRONT SPEAKERS CENTER SPEAKERS SUB WOOFER PRE OUT AC OUTLET SWITCHED TOTAL 90W...

Page 5: ...N7 J1 D103 D101 D126 D125 Q134 D105 Q2 WH2 CN2 WH4 WH5 WH3 Q1 D104 D102 Q17 D123 Q122 Q123 IC104 Q14 Q13 Q8 Q7 WH4 WH5 WH3 WH2 CN1 J6 J5 J4 J3 CN3 E2 E3 CN6 Q133 J7 PRE OUT AUDIO WOOFER SUB PLAY IN REC OUT PLAY IN REC OUT VIDEO1 VIDEO2 MONITOR MD TAPE REC OUT PLAY IN CD DVD PHONO J2 X07 3142 71 A 3 J70 1370 41 SURROUND SPEAKERS L R CENTER SPEAKER L R FRONT SPEAKERS IC113 IC101 IC102 IC114 E1 FM DE...

Page 6: ...70 1363 41 WH5 S19 X1 W41 W113 W116 W118 W110 W108 W107 W101 W115 W92 W16 W38 W14 W10 W37 W2 W63 W66 W67 W50 W13 W52 W48 W74 W82 W53 W64 W55 W60 W78 W68 W69 W83 W80 W75 W89 W120 W85 W97 W90 W98 W81 W111 W88 W102 W93 W95 W77 W76 W79 W62 W61 W54 W105 W125 W106 W103 W127 W104 W117 W124 W123 W91 W126 W46 W40 W35 W56 W27 W17 W11 W22 W7 W32 W15 W5 W3 W39 W12 W21 W6 W44 W45 W59 W57 W65 W58 W70 W71 W72 W9...

Page 7: ... 022 C85 0 022 C84 R88 56K 470P C86 3300P C88 33K R89 R20 1 C91 R79 1K R33 R34 VREF T METER B B 680 R3 12P C43 12V B B B 12V B B B B B B B B B B 12V 12V 12V 12V 12V B B 12V 12V 330P W660 C82 47u16 C7 1K R49 R15 33K C4 C36 0 01 B 3 9K 1K R36 100 R35 R37 KV1440 RF AMP 2SC2714 SVC220 or 2SC2413 FET1 2SK302 TR2 3 D1 4 TR1 D1 D2 FET1 OSC D4 TR2 D3 BUFFER OSC TR3 DISTORTION ST FM FRONT END TR1 MIX GND 7...

Page 8: ...314 47K R313 10K 10K R311 10u100 C252 10 R312 C260 220u6 3 R389 4 7K 47 R321 10K R320 68K R319 47K R387 47K R388 100u10 C259 1 4W 1 4W R390 47K R323 39K 7 6 6 5 4 7 4 7u35 C116 3 2 8 1 C105 220P R103 27K 270K R109 360 R107 47u6 3 C107 0 012 C111 470P C109 22K R111 C117 100P 3300P C113 R113 47K 100P C241 100 R116 4 7u35 C115 R105 100 R110 270K R112 22K 0 012 C112 C114 C108 47u6 3 R108 360 C110 470P...

Page 9: ...00P C201 4700P C200 4700P K1 150 R342 1W K2 R343 150 1W K4 R344 150 1W 6 5 3 15 11 9 10 8 3 6 5 12 R190 4 7 R346 3uH L102 0 1 C168 0 1 C170 3uH L101 12 R189 0 1 C169 0 1 C167 4 7 R345 2W 2W 1 4W 1 4W R263 12 2W 0 1 C215 C216 0 1 3uH L105 4 7 1W R349 R347 4 7 2W C197 0 1 C195 0 1 3uH L103 R235 2W 12 C198 0 1 0 1 C196 R236 12 2W 3uH R348 4 7 L104 1 4W R192 390 2W R191 390 2W 1 R283 33K R244 33K R243...

Page 10: ...R11 470 R7 4 7K R9 4 7K 10u50 C25 0 1 C26 1 1000P 40 39 38 37 36 34 35 AVSS AVDD VREFH VCOM P S MCKI DZFI C21 0 1 44 43 42 41 CDTI LOOP0 CSN DIF0 CCLK DIF1 CDTO LOOP1 C23 5 220 R21 11 10 6 9 8 7 27 41 40 39 1 2 4 3 2 5V 2 5V EMD0 CLKIN R521 10K C508 2 2u50 2 5V 2 5V R501 220 R502 220 R522 4 7K R523 4 7K R503 220 3 XMT958 EMWR EMOE SCDIN 2 5V 6 10K R527 10K R505 4 5 EMD1 EMD2 EMD3 DGND2 VD2 EMD4 EM...

Page 11: ...B 1K R465 0 1 C460 470u6 3 C461 0 1 C459 2 2 R454 4 7 R453 0 1 C456 1 R452 0 1 C453 0 1 C457 47u6 3 C458 0 1 C454 470u6 3 C455 1 4W 10 R455 1W 1 4W 1 4W 2200u16 C452 220P C184 2 7K R166 1 C183 0 1 C185 470 R170 1000P C187 0 1 C186 470 R171 1000P C188 7 1V 7 1V 5 4V 7 1V 7 1V 7 1V 7 1V 12V 35 32 36 33 34 31 B B 12 12 7 19 5 18 38 5 13 9 41 1 10 2 4 6 12 3 41 17 3 3V 5V 5V 5V 5V 5V 470 R402 470 R401...

Page 12: ...100 R121 100 R122 100 R123 100 R124 100 R126 C44 C21 100Kx5 CP1 100P 0 1 23 22 21 20 19 C10 0 01 560K R83 6 5 4 3 R15 R14 100K 330 R12 R13 100K 330 2 1 48 47 50 49 100Kx5 CP501 100K R164 220 45 40 41 42 43 44 R165 220 R166 220 R167 220 R168 220 R169 220 R114 100K 39 R170 220 R142 100K 38 R141 100K 37 R88 100 36 R87 100 35 33 R85 100Kx4 CP3 31 100Kx4 CP2 100 100Kx3 CP502 51 52 53 54 55 56 57 58 59 ...

Page 13: ... B 5V B B B B B B B B B C4 10u16 2 1 Q6 9 11 C59 1 B B C31 100P 0 01 C52 B D21 D8 RESET IC D11 Q1 RESET Q2 D12 FIRST OFF S10 MEMORY DIMMER S16 AUTO S9 INPUT MODE S15 BAND S8 SET UP S14 MONITOR S7 SOUND S13 SP B S6 MODE S12 LISTEN SP A S5 SOURCE DIRECT S11 Q3 Q4 Q5 CURRENT BUFFER DIGITAL DOLBY Q9 D3 PROLOGIC Q10 D4 3 STEREO D5 Q6 Q11 WH3 CN3 J1 HEADPHONE P1 E5 WH2 CN5 S1 WH7 10G 9G 8G 7G 6G 5G 4G 3...

Page 14: ...2 J61 SWITCHED TOTAL 90W MAX S19 POWER ON OFF DOWN S 1 VOLUME CONTROL UP X08 3010 10 A 3 Ax2 A A A 1 J 1 VIDEO2 COAXIAL J61 VIDEO J75 SYSTEM CONTROL OPTICAL DIGITAL IN J 2 FRONT SURROUND SUB WOOFER CENTER DVD CD DVD DVD 6CH INPUT ED 1 S14 SET UP S15 INPUT MODE S16 B S 7 MONITOR DIMMER S 5 SPEAKERS S 6 A S 2 INPUT SELECTOR S13 SOUND S12 LISTEN MODE S11 SOURCE DIRECT S 8 BAND S17 S18 MULTI CONTROL S...

Page 15: ...ii T England E Europe G Germany V China Shanghai Y AAFES Europe X Australia Q Russia H Korea M Other Areas indicates safety critical components Ref No Add ress New Parts Parts No Description Desti nation Re marks 601 1A A01 3733 01 METALLIC CABINET EE1 601 1A A01 3734 01 METALLIC CABINET E2 602 1A A09 1178 08 BATTERY COVER 604 2B A46 0309 04 REAR COVER 605 2A A60 1760 11 PANEL E2 605 2A A60 1761 1...

Page 16: ...es safety critical components Ref No Add ress New Parts Parts No Description Desti nation Re marks C84 85 CK73FB1H223K CHIP C 0 022UF K C86 CK73FB1H471K CHIP C 470PF K C88 CK73FB1H332K CHIP C 3300PF K C91 CK73FF1C105Z CHIP C 1 0UF Z C101 102 CC73FCH1H390J CHIP C 39PF J C103 104 CE04RW1V100M ELECTRO 10UF 35WV C105 106 CC73FCH1H221J CHIP C 220PF J C107 108 CE04RW0J470M ELECTRO 47UF 6 3WV C109 110 CC...

Page 17: ...Parts No ne sont pas fournis Teile ohne Parts No werden nicht geliefert 6 L Scandinavia K USA P Canada R Mexico C China I Malaysia Y PX Far East Hawaii T England E Europe G Germany V China Shanghai Y AAFES Europe X Australia Q Russia H Korea M Other Areas indicates safety critical components Ref No Add ress New Parts Parts No Description Desti nation Re marks F2 F05 2525 05 FUSE SEMKO 250V T2 5AL ...

Page 18: ...Other Areas indicates safety critical components Ref No Add ress New Parts Parts No Description Desti nation Re marks R203 204 RK73FB2A113J CHIP R 11K J 1 10W R205 206 RK73FB2A471J CHIP R 470 J 1 10W R209 210 RK73FB2A102J CHIP R 1 0K J 1 10W R211 212 RK73FB2A273J CHIP R 27K J 1 10W R213 214 RK73FB2A182J CHIP R 1 8K J 1 10W R215 216 RK73FB2A224J CHIP R 220K J 1 10W R217 218 RK73FB2A183J CHIP R 18K ...

Page 19: ...anada R Mexico C China I Malaysia Y PX Far East Hawaii T England E Europe G Germany V China Shanghai Y AAFES Europe X Australia Q Russia H Korea M Other Areas indicates safety critical components Ref No Add ress New Parts Parts No Description Desti nation Re marks W338 339 R92 0670 05 CHIP R 0 OHM W340 341 R92 0679 05 CHIP R 0 OHM W342 343 R92 0670 05 CHIP R 0 OHM W506 R92 0679 05 CHIP R 0 OHM W51...

Page 20: ... Canada R Mexico C China I Malaysia Y PX Far East Hawaii T England E Europe G Germany V China Shanghai Y AAFES Europe X Australia Q Russia H Korea M Other Areas indicates safety critical components Ref No Add ress New Parts Parts No Description Desti nation Re marks Q202 2SB1218A Q R TRANSISTOR Q206 207 2SC4081 R S TRANSISTOR Q206 207 2SD1819A Q R TRANSISTOR Q210 211 2SD1757K TRANSISTOR Q212 2SA15...

Page 21: ...ii T England E Europe G Germany V China Shanghai Y AAFES Europe X Australia Q Russia H Korea M Other Areas indicates safety critical components Ref No Add ress New Parts Parts No Description Desti nation Re marks CN1 E40 8485 05 FLAT CABLE CONNECTOR CN2 E40 8484 05 FLAT CABLE CONNECTOR CN5 E40 4248 05 PIN ASSY CN5 E40 8358 05 PIN ASSY J1 E63 1080 05 PIN JACK J2 E63 1139 05 PIN JACK J61 E63 1141 05...

Page 22: ...ithout Parts No are not supplied Les articles non mentionnes dans le Parts No ne sont pas fournis Teile ohne Parts No werden nicht geliefert L Scandinavia K USA P Canada R Mexico C China I Malaysia Y PX Far East Hawaii T England E Europe G Germany V China Shanghai Y AAFES Europe X Australia Q Russia H Korea M Other Areas indicates safety critical components Ref No Add ress New Parts Parts No Descr...

Page 23: ...HIP R 10K J 1 10W R69 70 RK73FB2A103J CHIP R 10K J 1 10W R71 72 RK73FB2A473J CHIP R 47K J 1 10W R83 RK73FB2A564J CHIP R 560K J 1 10W R98 RK73FB2A104J CHIP R 100K J 1 10W R107 109 RK73FB2A104J CHIP R 100K J 1 10W R110 RK73FB2A1R0J CHIP R 1 J 1 10W R111 RK73FB2A101J CHIP R 100 J 1 10W R112 RK73FB2A473J CHIP R 47K J 1 10W R113 RK73FB2A101J CHIP R 100 J 1 10W R114 RK73FB2A104J CHIP R 100K J 1 10W R118...

Page 24: ...ate schematic diagrams and information on regional component variations through use of parts list section ower output during STEREO operation IEC DIN 1 kHz 0 7 4Ω 60 W 60 W e power output during SURROUND operation ONT 1kHz 0 7 T H D at 4 Ω one channel driven 80 W 80 W NTER 1kHz 0 7 T H D at 4 Ω one channel driven 80 W RROUND 1kHz 0 7 T H D at 4 Ω one channel driven 60 W 60 W rmonic distortion 0 04...

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