SERVICE MANUAL COMPACT COMPONENT SYSTEM MB550 2006 MX-KC45E,MX-KC45EN, MX-KC45A,MX-KC45UW, MX-KC45UY,MX-KC45UJ SP-MXKC45 CA-MXKC45 SP-MXKC45 Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) TABLE OF CONTENTS PRECAUTION............... . . 1-3 SPECIFIC SERVICE INSTRUCTIONS .
Page 2
SPECIFICATION 155 W per channel, min. RMS, driven into 6 Ω at 1kHz, with no Amplifier Output Power (IEC 268-3) more than 10% total harmonic distortion 125 W per channel, min. RMS, driven into 6 Ω at 1kHz, with no (DIN-3) more than 0.9% total harmonic distortion Input Sensitivity/...
SECTION 1 PRECAUTION Safety Precautions (1) This design of this product contains special hardware and voltmeter. many circuits and components specially for safety purpos- Move the resistor connection to each exposed metal es. For continued protection, no changes should be made part, particularly any exposed metal part having a return to the original design unless authorized in writing by the path to the chassis, and measure the AC voltage across...
Page 4
Important for laser products 1.CLASS 1 LASER PRODUCT 5.CAUTION : If safety switches malfunction, the laser is able to function. 2.CAUTION : (For U.S.A.) Visible and/or invisible class II laser radiation 6.CAUTION : Use of controls, adjustments or performance of when open.
SECTION 3 DISASSEMBLY Main Body 3.1.1 Removing the metal cover (See Fig.1, 2) (1) Remove the two screws A and four screws B attaching the metal cover from both side of the main body. (See Fig.1) (2) Remove the six screws C attaching the metal cover from back side of main body.
3.1.4 Removing the 3CD changer mechanism (See Fig.3 to 7) (1) Disconnect the card wire from amp board connected to the connector CN601 of the main board. (See Fig.3) CN303 CN201 (2) Disconnect the card wire from the tuner pack connected to the connector CN306 of the main board.
3.1.5 Removing the main board (See Fig.6, 8, 9) (1) Remove the six screws H attaching the main board. (See Fig.6) connector wire traverse mechanism (2) Disconnect the connector wire connected to the connector of the motor board. (See Fig.8) (3) Disconnect the connector wire connected to the connector of the traverse mechanism.
Page 9
3.1.6 Removing the tuner pack (See Fig.11) (1) Remove the two screws J attaching the tuner pack. CN902 CN202 CN903 3.1.7 Removing the amp board (See Fig.10, 11) (1) Disconnect the connector wire from the front board con- nected to the connector CN202 of the amp board.
Page 10
3.1.10 Removing the front panel assembly (See Fig.3, 4, 12, 13) (1) Disconnect the two earth wires from the bottom plate. (See Fig.12) (2) Remove the one screw P attaching the front panel assem- bly from bottom side. (See Fig.13) (3) Remove the two screws Q attaching the front panel assem- bly from both side of the main body.
3.1.11 Removing the cassette mechanism assembly (See Fig.14) (1) Remove the six screws R attaching the cassette mecha- nism assembly. 3.1.12 Removing the front board (See Fig.14, 15) (1) Remove the seven screws S attaching the front board. (See Fig.14) (2) Disconnect the connector wire from the connector CN201 of the front board.
SECTION 5 TROUBLESHOOTING This service manual does not describe TROUBLESHOOTING. (No.MB550)1-13...
Page 14
Victor Company of Japan, Limited Audio/Video Systems Category 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan (No.MB550) Printed in Japan...
Page 15
SCHEMATIC DIAGRAMS COMPACT COMPONENT SYSTEM MX-KC45E,MX-KC45EN,MX-KC45A MX-KC45UW,MX-KC45UY,MX-KC45UJ CD-ROM No.SML200607 SP-MXKC45 CA-MXKC45 SP-MXKC45 Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) Contents Block diagrams Standard schematic diagrams Printed circuit boards 2-17 to 21 No.MB550SCH COPYRIGHT 2006 Victor Company of Japan, Limited.
Page 16
In regard with component parts appearing on the silk-screen printed side (parts side) of the PWB diagrams, the parts that are printed over with black such as the resistor ( ), diode ( ) and ICP ( ) or identified by the " " mark nearby are critical for safety.
Block diagram TUNER PARK CON1 AUX IN CN306 CN205 ANT IN AUX L AUX R HEADPHONE TUNER L CW202 TUNER R Q401 to Q410 DECK-A Q438 Q611 PB-HEAD A/B DECK MUTE EXCHANGE PRE-AMP L CLK,CE IC601 PRE-AMP R DAT IN/OUT SPEAKER TAPE L Q434,Q435...
Page 33
Printed circuit boards Main board Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) forward side reverse side R711 C771 R710 R709 R708 C711 C714 C705 JR701 R706 C503 Q405 L509 R705 Q434 C464 C706 R704 R701...
Page 34
Amplifier board Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) forward side reverse side CN903 JW648 CN08P / 2.54 D614 D615 RS402M G5SBA60L C659 682(M) C660 C627 JW605 JW606 JW631 1000 / 25 C628 C603 R101...
Page 35
Trans board Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) C902 D903 JW908 D902 JW901 C901 D901 C903 R901 Q901 C905 D904 C907 C904 D906 D905 R902 2-19...
Page 36
Front board Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) forward side (Front board) (FL board) (Headphone board) D208 JK201 D207 R285 R286 L202 L201 C219 C211 C203 (Remocon board) IC201 JW10 JW214 JW17 JW207 JW20...
Page 37
Front board Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) reverse side (Front board) (FL board) (AUX IN board) R221 C221 R220 R219 C224 R234 R235 R233 C236 C206 R208 R247 R238 R284 R283 R203 R282...
Page 38
Victor Company of Japan, Limited Audio/Video Systems Category 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan Printed in Japan (No.MB550SCH)
PARTS LIST MX-KC45E,MX-KC45EN,MX-KC45A MX-KC45UW,MX-KC45UY.MX-KC45UJ * All printed circuit boards and its assemblies are not available as service parts. - Contents - Exploded view of general assembly and parts list (Block No.M1) Electrical parts list (Block No.01~13) 3-30 Packing materials and accessories parts list (Block No.M3)
Page 40
Exploded view of general assembly and parts list Block No. Main board Front board Front board...
Page 41
55 55 only UW,UY,UJ only UW,UY,UJ board Power board Amp board...
Page 42
General Assembly Block No. [M][1][M][M] Symbol No. Part No. Part Name Description Local BI1084430101X1 MAIN VOLUM KNOB BI1084440101X1 V RING ORNAMENT VOLUME BI1084350101X1 DISP ORNAMENT BI1084360101X1 DISP ORNAMENT BI1084370101X1 CAS DOOR WINDOW BI1084380101X1 CAS DOOR WINDOW BI1084300101X1 CASS DOOR HLDR BI1084310101X1 CASS DOOR HLDR BI1084320101X1...
Page 43
Symbol No. Part No. Part Name Description Local BI403361X FUSE F901 T4AL 250V UW,UY,UJ BI403021X FUSE F902 T2AL 250V UW,UY,UJ...
Electrical parts list Main board (MX-KC45E,MX-KC45EN) Symbol Part No. Part Name Description Local Block No. [0][1] D306 UZ4.7BSA Z DIODE BI3UZ4.7BSAM000 Symbol Part No. Part Name Description Local BI31SS133M000V D307 1SS133 FR DIODE BI31SS133M000V D308 1SS133 FR DIODE...
Page 45
Symbol Symbol Part No. Part Name Description Local Part No. Part Name Description Local C407 BICE225500MP01 E CAPACITOR 2.2uF 50V C704 BICE476160MP01 E CAPACITOR 47uF 16V C408 BICC471500KA04 C CAPACITOR 470pF 50V C705 BICC102500KA04 C CAPACITOR 1000pF 50V C409 BICC103500KA04 C CAPACITOR...
Page 46
Symbol Symbol Part No. Part Name Description Local Part No. Part Name Description Local R302 BIRC1010105A00 C RESISTOR 100Ω 1/10W R387 BIRC1030085M00 C RESISTOR 10KΩ 1/8W J R303 BIRC1010105A00 C RESISTOR 100Ω 1/10W R388 BIRC2220085N00 C RESISTOR 2.2KΩ 1/8W R304 BIRC1010105A00 C RESISTOR...
Page 47
Symbol Symbol Part No. Part Name Description Local Part No. Part Name Description Local R472 BIRC5630105A00 C RESISTOR 56KΩ 1/10W R714 BIRC1030105A00 C RESISTOR 10KΩ 1/10W R479 BIRC1200045M00 C RESISTOR 12Ω 1/4W R715 BIRC1830105A00 C RESISTOR 18KΩ 1/10W R480 BIRC2720105A00 C RESISTOR...
Page 48
R236 BIRC3020105A00 C RESISTOR 3KΩ 1/10W R237 BIRC3920105A00 C RESISTOR 3.9KΩ 1/10W R238 BIRC6220105A00 C RESISTOR 6.2KΩ 1/10W Front board (MX-KC45E,MX-KC45EN) R241 BIRC1030105A00 C RESISTOR 10KΩ 1/10W R247 BIRC1020105A00 C RESISTOR 1KΩ 1/10W Block No. [0][2] R248 BIRC1020085M00 C RESISTOR 1KΩ...
Page 50
Symbol Symbol Part No. Part Name Description Local Part No. Part Name Description Local C603 BICC104250ZA04 C CAPACITOR 0.1uF 25V R608 BIRC1010085N00 C RESISTOR 100Ω 1/8W C604 BICC104250ZA04 C CAPACITOR 0.1uF 25V R609 BIRC1010085N00 C RESISTOR 100Ω 1/8W C605 BICE47825M0 E CAPACITOR...
Page 52
Symbol Symbol Part No. Part Name Description Local Part No. Part Name Description Local BI31SS133M000V C435 BICC103500K04 C CPCITOR 0.01uF 50V D505 1SS133 FR DIODE C436 BICC103500K04 C CPCITOR 0.01uF 50V BI31SS133M000V C437 BICC682500K04 C CPCITOR 6800pF 50V D508 1SS133 FR DIODE...
Page 53
Symbol Symbol Part No. Part Name Description Local Part No. Part Name Description Local C732 BICC104500K04 C CPCITOR 0.1uF 50V R330 BIRC2220085M00 C RESISTOR 2.2KΩ 1/8W C733 BICC104500K04 C CPCITOR 0.1uF 50V R331 BIRC2220085M00 C RESISTOR 2.2KΩ 1/8W C759 BICC104500K04 C CPCITOR...
Page 54
Symbol Symbol Part No. Part Name Description Local Part No. Part Name Description Local R422 BIRC823010500 C RESISTOR 82KΩ 1/10W R523 BIRC222010500 C RESISTOR 2.2KΩ 1/10W R423 BIRC224010500 C RESISTOR 220KΩ 1/10W R525 BIRC104010500 C RESISTOR 100KΩ 1/10W R424 BIRC223010500 C RESISTOR...
Page 55
Front board (MX-KC45A) Symbol Part No. Part Name Description Local Block No. [0][6] R755 BIRC133010500 C RESISTOR 13KΩ 1/10W Symbol Part No. Part Name Description Local R756 BIRC1020085N00 C RESISTOR 1KΩ 1/8W R757 BIRC1020085N00 C RESISTOR 1KΩ 1/8W R758 BIRC181010500 C RESISTOR...
Page 56
Symbol Symbol Part No. Part Name Description Local Part No. Part Name Description Local R250 BIRC1020085M00 C RESISTOR 1KΩ 1/8W J S225 BI8SKRGED0P0 TCT SWITCH SKRGED010 R251 BIRC473010500 C RESISTOR 47KΩ 1/10W S226 BI8SKRGED0P0 TCT SWITCH SKRGED010 R252 BIRC473010500 C RESISTOR 47KΩ...
Page 57
Symbol Symbol Part No. Part Name Description Local Part No. Part Name Description Local D601 1N4003 DIODE BI31N4003LEM000 C635 BICE107100MP01 E CAPACITOR 100uF 10V D602 1N4003 DIODE BI31N4003LEM000 C636 BICE107100MP01 E CAPACITOR 100uF 10V D603 1N4003 DIODE BI31N4003LEM000 C637 BICC030500CA04 C CAPACITOR...
Symbol Symbol Part No. Part Name Description Local Part No. Part Name Description Local R639 BIRC1530105A00 C RESISTOR 15KΩ 1/10W C903 BICH223250ZM01 C CPCITOR 0.022uF 25V R640 BIRC0470045N00 C RESISTOR 4.7Ω 1/4W C904 BICH223250ZM01 C CPCITOR 0.022uF 25V R641 BIRC0470045N00 C RESISTOR...
Page 59
Symbol Symbol Part No. Part Name Description Local Part No. Part Name Description Local Q438 DTC114TK DIGI TRANSISTOR BI2DTC114TKA011 C312 BICC240500JA04 C CAPACITOR 24pF Q504 KTA1267GR TRANSISTOR BI2KTA1267GP00 C313 BICC330500JA04 C CAPACITOR 33pF 50V Q505 DTC114TK DIGI TRANSISTOR BI2DTC114TKA011 C314 BICC102500KA04...
Page 60
Symbol Symbol Part No. Part Name Description Local Part No. Part Name Description Local C526 BICE105500MP01 E CAPACITOR 1uF 50V C818 BICC102500KA04 C CAPACITOR 1000pF 50V C527 BICE226250MP01 E CAPACITOR 22uF 25V C819 BICC102500KA04 C CAPACITOR 1000pF 50V C528 BICE476160MP01 E CAPACITOR...
Page 61
Symbol Symbol Part No. Part Name Description Local Part No. Part Name Description Local R363 BIRC4710085M00 C RESISTOR 470Ω 1/8W R450 BIRC3320105A00 C RESISTOR 3.3KΩ 1/10W R365 BIRC1010105A00 C RESISTOR 100Ω 1/10W R451 BIRC1020105A00 C RESISTOR 1KΩ 1/10W R366 BIRC1010085M00 C RESISTOR...
Page 62
Symbol Symbol Part No. Part Name Description Local Part No. Part Name Description Local R572 BIRC4720085M00 C RESISTOR 4.7KΩ 1/8W R821 BIRC1020085M00 C RESISTOR 1KΩ 1/8W J R573 BIRC2210085M00 C RESISTOR 220Ω 1/8W R850 BIRC1020105A00 C RESISTOR 1KΩ 1/10W R574 BIRC1030105A00 C RESISTOR...
Page 63
Symbol Symbol Part No. Part Name Description Local Part No. Part Name Description Local C207 BICE226500MP01 E CAPACITOR 22uF 50V R272 BIRC4730105A00 C RESISTOR 47KΩ 1/10W C209 BICC104500KA04 C CAPACITOR 0.1uF 50V R273 BIRC4730105A00 C RESISTOR 47KΩ 1/10W C211 BICE107500MP01 E CAPACITOR...
Page 64
Amp board Symbol Part No. Part Name Description Local (MX-KC45UW,MX-KC45UY.MX-KC45UJ) Block No. [1][1] D613 1N4003 DIODE BI31N4003LEM000 D614 RS402M SELEN RECTIFIER BI3RS402M1 D615 GBU6J DIODE BI3GBU6J1V Symbol Part No. Part Name Description Local BI3UZ12BSCM000 D616 UZ12BSC Z DIODE BI3UZ12BSCM000 D617 UZ12BSC...
Page 65
Symbol Symbol Part No. Part Name Description Local Part No. Part Name Description Local C646 BICM104101KP01 M CAPACITOR 0.1uF 100V R650 BIRC1040105A00 C RESISTOR 100KΩ 1/10W C647 BICM104101KP01 M CAPACITOR 0.1uF 100V R651 BIRC1040105A00 C RESISTOR 100KΩ 1/10W C648 BICM104101KP01 M CAPACITOR...
Page 66
Symbol Part No. Part Name Description Local CW902 BI12P60176X CONNECTOR WIRE 6P to AMP CN902 CW903 BI12P80121X CONNECTOR WIRE 8P to AMP CN903 PT902 BI211011151001 POWER TRANS EI28SI RY901 BI8RL00331X RELAY RELAYDC9V S901 BI805220X POWER SWITCH SDKPA40700 XXXXX BI11W080H2Y...
Page 68
Packing materials and accessories parts list Block No. ( MX-KC45E,MX-KC45EN ) No additional / supplemental order of WARRANTY CARDs are available. A1,A2 The parts without symbol number are not service. 3-30...
Page 69
Packing and Accessories (MX-KC45E,MX-KC45EN) Block No. [M][3][M][M] Symbol No. Part No. Part Name Description Local BI440001744000 INST BOOK LVT1521-007A GER FRE ITA DUT BI440001778000 INST BOOK LVT1521-008A SPA DAN FIN SWE POR ------------ WARRANTY CARD BT-54028-1(0905) ------------ BATTERY (x2)
Page 70
Packing materials and accessories parts list Block No. ( MX-KC45A,MX-KC45UW,MX-KC45UY.MX-KC45UJ ) No additional / supplemental order of WARRANTY CARDs are available. A1,A2,A10,A11 The parts without symbol number are not service. 3-32...
Page 71
Packing and Accessories (MX-KC45A,MX-KC45UW,MX-KC45UY.MX-KC45UJ) Block No. [M][4][M][M] Symbol No. Part No. Part Name Description Local BI440001708000 INST BOOK LVT1521-006A ENG BI440001709000 INST BOOK LVT1521-004A ENG SPA POR BI440001710000 INST BOOK LVT1521-005A SPA BI440001711000 INST BOOK LVT1521-003A ENG ------------ WARRANTY CARD BT-56017-1 ------------ BATTERY...