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Kenwood KRF-V4550D Service Manual

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AUDIO VIDEO SURROUND RECEIVER
KRF-V4550D/V4550DE
KRF-V4550D-S

SERVICE MANUAL

Knob *
(K29-)
STANDBY
ON/STANDBY
POWER
ON
OFF
PHONES
Knob *
Phone jack
(K27-)
(E11-0272-05)
Pin jack
(E63-1080-05)
Pin jack
(E63-1139-05)
L
R
AM
SURROUND SUB WOOFER
FRONT
DVD/6ch INPUT
GND
L
FM
75Ω
R
GND
REC OUT
PHONO
CD/DVD
MD/TAPE1
Lock terminal board
(E20-0321-05)
* Refer to parts list on page 24.
Front glass
(B10-3679-12)
SET UP
SOUND
MULTI CONTROL
SPEAKER
MUTE
Knob *
Knob *
(K29-)
(K29-)
Optical receiving module
(W02-2716-05)
Pin jack
(E63-1141-05)
CENTER
DVD
CD/DVD
VIDEO 2
OPTICAL
SYSTEM CONTROL
COAXIAL
DIGITAL IN
VIDEO
REC OUT
PLAY IN
PLAY IN
REC OUT
PLAY IN
SUB WOOFER PRE OUT
VIDEO 2
VIDEO 1
MONITOR
AUDIO
Pin jack
Pin jack
(E63-1143-05)
(E63-1146-05)
DOLBY
DIGITAL
PROLOGIC
3 STEREO
INPUT SELECTOR
INPUT MODE
DIMMER
MONITOR
LISTEN MODE
SOURCE DIRECT
BAND
AUTO
MEMORY
Knob *
Knob *
(K29-)
(K29-)
Metallic cabinet *
(A01-)
Miniature phone jack
(E11-0293-05)
FRONT SPEAKERS
CENTER SPEAKERS
Screw terminal board
(E70-0122-05)
© 2001-1/B51-5701-00 (K/K) 1704
Panel *
(A60-)
VOLUME CONTROL
DOWN
UP
6CHINPUT
FOR EXTRA DIGITAL AUDIO FORMAT
Knob *
(K29-)
AC power cord
(E30-2942-05)
Power cord bushing
(J42-0083-05)
AC OUTLET
AC 230V~50Hz
SWITCHED
TOTAL 90W MAX
Lock terminal board
AC outlet
(E70-0057-05)
(E03-0149-05)
70%

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  Summary of Contents for Kenwood KRF-V4550D

  • Page 1: Service Manual

    AUDIO VIDEO SURROUND RECEIVER KRF-V4550D/V4550DE KRF-V4550D-S SERVICE MANUAL © 2001-1/B51-5701-00 (K/K) 1704 Knob * Panel * Front glass (K29-) (B10-3679-12) (A60-) VOLUME CONTROL DOLBY STANDBY DIGITAL PROLOGIC 3 STEREO INPUT SELECTOR SET UP INPUT MODE DIMMER MONITOR SOUND LISTEN MODE...
  • Page 2: Table Of Contents

    KRF-V4550D/V4550DE/V4550D-S CONTENTS / ACCESSORIES Contents CONTENTS / ACCESSORIES ........2 SCHEMATIC DIAGRAM ..........9 BLOCK DIAGRAM ............3 EXPLODED VIEW ............23 ADJUSTMENT ............4 PARTS LIST..............24 PC BOARD ..............5 SPECIFICATIONS ........Back cover Please refer to KRF-V4530D(B51-5597-00) on microprocessor MN101C35DRA4(same function as...
  • Page 3 (X08) VIDEO2 (VIDEO2/MONI.) COXIAL DIGITAL IC51 DIGITAL 6ch INPUT AUDIO COXIAL RECEIVER AK4527 x0.5 AK4110 LS/RS CODEC (ADC&DAC) CD/DVD OPTICAL 6ch E. VOL with 2ch TONE CONT. ANALOG 6ch INPUT SELECTOR IC15 IC14 M62446SP L, R NOSUB LS,RS LS,RS AUDIO IN/OUT 6ch INPUT BYPASS L, R...
  • Page 4: Adjustment

    KRF-V4550D/V4550DE/V4550D-S ADJUSTMENT OUTPUT RECEIVER ALIGNMENT N o . I T E M INPUT SETTINGS ALIGN FOR F I G . S E T T I N G S S E T T I N G S P O I N T S...
  • Page 5: Pc Board

    PC BOARD (Component side view) FRONT SPEAKERS AUDIO CENTER X07-3142-71 A/3 (J70-1370-41) SPEAKER VIDEO1 VIDEO2/MONITOR MD/TAPE WOOFER PLAY IN REC OUT PLAY IN REC OUT PLAY IN REC OUT CD/DVD PHONO PRE OUT SURROUND SPEAKERS C101 C131 C132 C129 C127 C128 C125 C121...
  • Page 6: Schematic Diagram

    PC BOARD (Component side view) DVD/6CH.INPUT DIGITAL IN CENTER X08-3010-11 A/3 (J70-1363-41) CD/DVD VIDEO VIDEO2 WOOFER SURROUND FRONT SYSTEM CONTROL C601 X14 B/6 X14 C/6 R601 C610 R611 C607 C603 R607 R603 R609 C605 C253 C753 C256 C251 C252 C609 R605 C254 R251...
  • Page 7: Condition

    7.2MHz ments used or on the product. The value shown in ( ) is actual reading measured R47 1K in the AM mode. R46 1K 470P R45 1K MODULATION KRF-V4550D/E/-S (1/4) MODE CARRIER ANT INPUT FREQUENCY DEVIATION KRF-V4550D/V4550DE/V4550D-S 98MHz 1kHz STEREO 67.5kHz 7.5kHz(Pilot)
  • Page 8 (X07-3142-71) (A/3) IC110-112 11.8V 20dB AMP +12V +12V +12V IC105(1/2) R105 C115 R115 4.7u35 IC110(1/2) IC101 C153 10u50 R173 POWER AMP (AUDIO) R167 C149 2.2K (LS,RSch) -58.4V LSch R107 C111 C113 R355 1.8K 47u25 R171 LSch R375 MM: 2.5V C103 0.012 3300P R101...
  • Page 9 8.0V 1 1/4W X08-A/3 R398 -CN1 1 1/4W -12V Q601 -19.2V OUT IN -11.8V IC104 CN62 X14-A/6 (X07- ) (A/3) KRF-V4550D/E/-S (2/4) D102 S1ZB20 (4101) Q54,138 2SB1640 Q137 2SD2395 D106,107,111-115,121,127,128,130 D117-120 : UDZ15B or IC106,109 NJU7313AM Q1,2,7,8,13,14 2SC2785(F,E) or IC101...
  • Page 10 (X08-3010-10) (A/3) R251 Lch 1 +3.3V +3.3V +3.3V +3.3V +3.3V R121 10K R252 DIGITAL R217 Rch 2 C59 0.01 C900 AUDIO +3.3V 330u6.3 5.6K 3.3V RECEIVER LSch R255 9.1K 0.01 -11.9V LSch 3 5.0V 3.3V INVERTER 100K 3.3V IC12 DIGITAL SIGNAL INPUT R256...
  • Page 11 SBUSY 0.01 R463 5.0V IC42 LEVEL +5.0V 5.0V SHIFTER IC45 R461 R452 (3.3V-5V) C752 220P SYSTEM IC42 1/4W CONTROL BUSY C751 220P DATA NJM4565M DAN202U DAP202U NJM4565MD DA204U NJM4580ED 2SC3906K 8.4V DPWR1 R450 0.33 DPWR2 1/4W KRF-V4550D/E/-S (3/4) KRF-V4550D/V4550DE/V4550D-S Y05-4332-70...
  • Page 12 (X14-7122-73) (A/6) CAUTION: For continued safety, DSP/DIR CD OUT DSP/DIR/CODEC CD IN replace safety critical components DSP/DIR/CODEC CCLK only with manufacturer's recom- mended parts (refer to parts list). DIR/CODEC CS CP502 indicates safety critical components. 100Kx3 DSP CS For continued protection against risk DSP PD X08-A/3 of fire, replace only with same type...
  • Page 13 : MA111 Q6,9-11 : UN5219 or D17-22,24,28,30,33 DTC113ZUA : 1SS133 or : UN5112 or HSS104A DTA124EUA R5 10K RESET 5.0V AC6.0V R4 1K 1u50 IN OUT RESET IC Q2 FIRST -29.2V (X14- ) (D/6) +5.4V HEADPHONE KRF-V4550D/V4550DE/V4550D-S Y05-4332-70 KRF-V4550D/E/-S (4/4)
  • Page 14 LISTEN MODE SOURCE DIRECT MONITOR INPUT MULTI CONTROL SELECTOR (21P) BAND AUTO MEMORY (33P) X07-3142-71 (A/3) ANTENNA ON/STANDBY X14- (B/6) X14- X07- POWER (D/6) PHONES (B/3) (33P) X14- X14-7122-73 (F/6) (A/6) X14- (C/6) EorJ EorJ EorJ DOWN VOLUME CONTROL EorJ KRF-V4550D/E/-S...
  • Page 15 Parts No. Description Ref. No Parts No. Description ress Parts nation marks marks ress Parts nation K29-7688-03 KNOB KRF-V4550D/V4550DE/V4550D-S L07-2797-05 POWER TRANSFORMER A01-3733-01 METALLIC CABINET A01-3734-01 METALLIC CABINET ✽ T90-0877-05 LEAD WIRE ANTENNA A09-1178-08 BATTERY COVER T90-0852-05 LOOP ANTENNA A46-0309-04...
  • Page 16 ✽ New Parts ✽ New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No.
  • Page 17 ✽ New Parts ✽ New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No.
  • Page 18 ✽ New Parts ✽ New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No.
  • Page 19 ✽ New Parts ✽ New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No.
  • Page 20 ✽ New Parts ✽ New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No.
  • Page 21 ✽ New Parts ✽ New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No.
  • Page 22 ✽ New Parts ✽ New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No.
  • Page 23 Australia Canada China England Europe Germany Korea Malaysia MODEL T99-0602-05 ROTARY ENCODER ABB. T99-0630-05 ROTARY ENCODER KRF-V4550D KRF-V4550DE HZS6.2N(B2) ZENER DIODE KRF-V4550D-S MTZJ6.2(B) ZENER DIODE Mexico PX/AAFES Russia Scandinavia Shanghai Other area D8 ,9 RB721Q DIODE MODEL D11 ,12 MA111 DIODE ABB.
  • Page 24: Parts List

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

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