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SERVICE MANUAL
COMPACT COMPONENT SYSTEM
3 2006 MB510
MX-KC45J,MX-KC45C
SP-MXKC45
CA-MXKC45
SP-MXKC45
Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)
TABLE OF CONTENTS
1 2 3 4 5 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 1-4 1-5 1-9 1-9
COPYRIGHT © 2006 Victor Company of Japan, Limited
No.MB510 2006/3
SPECIFICATION
Amplifier Output Power 200 W per channel, min. RMS, driven into 6 at 1kHz, with no more than 10% total harmonic distortion 400 mV/50 k 6 - 16 32 - 1 k 17 mW/ch output into 32 Type I (NORMAL) : 63 Hz - 12 500 Hz Wow And Flutter : 0.15% (WRMS) 3 CDs 85 dB 85 dB Unmeasurable 87.5 MHz - 108.0 MHz 530 kHz - 1 710 kHz 270 mm × 307 mm × 492mm (10-11/16" × 12-1/8" × 19-3/8") Approx. 9.3 kg (20.5 lbs) 3-way bass-reflex type Woofer : 16 cm (6-5/16") cone × 1 Mid : 5cm (2") cone × 1 Tweeter : 2 cm (13/16") dome × 1 6 45 Hz - 22 000 Hz 87 dB/W·m 220 mm × 324 mm × 238 mm (8-11/16" × 12-13/16" × 9-3/8") Approx. 3.6 kg (8 lbs) AC 120 V , 60 Hz 180 W (power on mode) 23 W (in Standby mode) 1 W (in ECO mode)
Input Sensitivity/Impedance AUX IN (1 kHz) Speaker terminals Phones Cassette Deck Section CD Player Frequency Response CD Capacity Dynamic Range Signal-To-Noise Ratio Wow And Flutter Tuner (Tuning Range) Unit Speaker Specifications SP-MXKC45 (each unit) FM Tuner AM Tuner Dimensions (W/H/D) Mass Type Speaker Unit
Power Handling Capacity 200 W Impedance Frequency Range Sound pressure level Dimensions (W/H/D) Mass Power Specifications Power Requirements Power Consumption
Design and specifications are subject to change without notice.
1-2 (No.MB510)
SECTION 1 PRECAUTION
1.1 Safety Precautions voltmeter. Move the resistor connection to each exposed metal part, particularly any exposed metal part having a return path to the chassis, and measure the AC voltage across the resistor. Now, reverse the plug in the AC outlet and repeat each measurement. Voltage measured any must not exceed 0.75 V AC (r.m.s.). This corresponds to 0.5 mA AC (r.m.s.).
AC VOLTMETER (Having 1000 ohms/volts, or more sensitivity)
(1) This design of this product contains special hardware and many circuits and components specially for safety purposes. For continued protection, no changes should be made to the original design unless authorized in writing by the manufacturer. Replacement parts must be identical to those used in the original circuits. Services should be performed by qualified personnel only. (2) Alterations of the design or circuitry of the product should not be made. Any design alterations of the product should not be made. Any design alterations or additions will void the manufacturers warranty and will further relieve the manufacture of responsibility for personal injury or property damage resulting therefrom. (3) Many electrical and mechanical parts in the products have special safety-related characteristics. These characteristics are often not evident from visual inspection nor can the protection afforded by them necessarily be obtained by using replacement components rated for higher voltage, wattage, etc. Replacement parts which have these special safety characteristics are identified in the Parts List of Service Manual. Electrical components having such features are identified by shading on the schematics and by ( ) on the Parts List in the Service Manual. The use of a substitute replacement which does not have the same safety characteristics as the recommended replacement parts shown in the Parts List of Service Manual may create shock, fire, or other hazards. (4) The leads in the products are routed and dressed with ties, clamps, tubings, barriers and the like to be separated from live parts, high temperature parts, moving parts and/or sharp edges for the prevention of electric shock and fire hazard. When service is required, the original lead routing and dress should be observed, and it should be confirmed that they have been returned to normal, after reassembling. (5) Leakage shock hazard testing After reassembling the product, always perform an isolation check on the exposed metal parts of the product (antenna terminals, knobs, metal cabinet, screw heads, headphone jack, control shafts, etc.) to be sure the product is safe to operate without danger of electrical shock.Do not use a line isolation transformer during this check. · Plug the AC line cord directly into the AC outlet. Using a "Leakage Current Tester", measure the leakage current from each exposed metal parts of the cabinet, particularly any exposed metal part having a return path to the chassis, to a known good earth ground. Any leakage current must not exceed 0.5mA AC (r.m.s.). · Alternate check method Plug the AC line cord directly into the AC outlet. Use an AC voltmeter having, 1,000 per volt or more sensitivity in the following manner. Connect a 1,500 10W resistor paralleled by a 0.15µF AC-type capacitor between an exposed metal part and a known good earth ground. Measure the AC voltage across the resistor with the AC
0.15 F AC TYPE
Place this probe on each exposed metal part.
1500
Good earth ground
10W
1.2
Warning
(1) This equipment has been designed and manufactured to meet international safety standards. (2) It is the legal responsibility of the repairer to ensure that these safety standards are maintained. (3) Repairs must be made in accordance with the relevant safety standards. (4) It is essential that safety critical components are replaced by approved parts. (5) If mains voltage selector is provided, check setting for local voltage.
1.3
Caution
Burrs formed during molding may be left over on some parts of the chassis. Therefore, pay attention to such burrs in the case of preforming repair of this system.
1.4
Critical parts for safety
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. When replacing them, be sure to use the parts of the same type and rating as specified by the manufacturer. (This regulation dose not Except the J and C version)
(No.MB510)1-3
1.5
Importance administering point on the safety
Full Fuse Replacement Marking
Graphic symbol mark (This symbol means fast blow type fuse.)
Marquage Pour Le Remplacement Complet De Fusible
Le symbole graphique (Ce symbole signifie fusible de type a fusion rapide.)
should be read as follows ;
^ doit etre interprete comme suit ;
FUSE CAUTION
FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE AND RATING OF FUSES ;
PRECAUTIONS SUR LES FUSIBLES
POUR UNE PROTECTION CONTINUE CONTRE DES RISQUES D'INCENDIE, REMPLACER SEULEMENT PAR UN FUSIBLE DU MEME TYPE ;
F901 : 3.5A
125V
F901 : 3.5A
125V
SECTION 2 SPECIFIC SERVICE INSTRUCTIONS This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.
1-4 (No.MB510)
SECTION 3 DISASSEMBLY
3.1 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 main body. (See Fig,1) (2) Remove the six screws C attaching the metal cover from back side of main body. (See Fig.2)
A
B
Fig.1
B
C D C D C
C
C
D
Fig.2
(No.MB510)1-5
3.1.2 Removing the CD changer mechanism (See Fig.2 to 7) (1) Disconnect the connector wire from fan connected to connector CN603 of amp board. (See Fig.3) (2) Remove the four screws D attaching the heat sink cover. (See Fig.2) (3) Disconnect the card wire from amp board connected to connector CN601 of the main board. (See Fig.3) (4) Disconnect the card wire from tuner pack connected to connector CN306 of the main board. (See Fig.4) (5) Open the CD tray and remove the CD door. Caution: If CD door can not open at power to ON condition, rotate the gear and open the CD tray. (See Fig.5) Disconnect the card wire connected to connector CN201 and CN303 of the main board. (See Fig.6) Disconnect the connector wire connected to connector CN301 and CN302 of the main board. (See Fig.6) Remove the two screws E attaching the CD changer mechanism of back side of main body. (See Fig.7) Remove the four screws F attaching the CD changer mechanism from both side of main body. (See Fig.3, 4)
GEAR (top view)
(6) (7) (8) (9)
F
CN601 CN303
Fig.5
G
CN201
G
M
a
Fig.3
CN603
CN306
F
G
CN302
G
Fig.6
CN301
E
E
a
Fig.4
M
Fig.7 1-6 (No.MB510)
3.1.3 Removing the main board (See Fig.6, 8) (1) Remove the six screws G attaching the main board. (See Fig.6) (2) Disconnect the connector wire connected to connector CW3 of the motor board. (3) Disconnect the connector wire connected to connector of traverse mechanism. (4) Solder the short land section of the CD pickup and then disconnect the card wire from main board connected to CD pickup. (See Fig.8) Caution: · Solder the short land section of the CD pickup before disconnecting the card wire from the connector on the CD pickup. If the card wire is disconnected without attaching the solders, the pickup may be destroyed by static electricity. · When attaching the CD pickup, be sure to remove solders from the short land section after connecting the card wire to the connector on the CD pickup. 3.1.4 Removing the amp board/rear panel (See Fig.9, 10) (1) Disconnect the connector wire from switch board connected to connector CN202 of amp board. (See Fig.9) (2) Disconnect the connector wires from transformer connected to connector CN902 and CN903 of amp board. (See Fig.9) (3) Remove the four screws H attaching the rear panel. (See Fig.10) (4) Remove the four screws J and three screws K attaching the amp board from rear panel. (See Fig.10)
short land section
Pickup Fig.8
CN902
CN202
CN903
Fig.9
H
H K K K H J J J
Fig.10
H
J
(No.MB510)1-7
3.1.5 Removing the front panel assembly (See Fig.3, 4, 11 and 12) (1) Disconnect the two earth wires from bottom plate. (See Fig.11) (2) Remove the one screw L attaching the front panel assembly from bottom side. (See Fig.12) (3) Remove the two screws M attaching the front panel assembly. (See Fig.3, 4) (4) Disengage hook a on the both side of the front panel assembly. (See Fig.3, 4)
earth wire Fig.11
L
Fig.12 3.1.6 Removing the cassette mechanism assembly (See Fig.13) (1) Remove the six screws N attaching the cassette mechanism assembly. 3.1.7 Removing the front board assembly (See Fig.13) (1) Remove the seven screws P attaching the front board assembly. 3.1.8 Removing the switch board assembly (See Fig.13) (1) Remove the main volume knob. (2) Remove the eighteen screws Q attaching the switch board assembly.
P
P
Q
Q
N
Q
N
Fig.13
Q
N
1-8 (No.MB510)
SECTION 4 ADJUSTMENT This service manual does not describe ADJUSTMENT.
SECTION 5 TROUBLESHOOTING This service manual does not describe TROUBLESHOOTING.
(No.MB510)1-9
Victor Company of Japan, Limited Audio/Video Systems Category 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan
(No.MB510)
Printed in Japan VPT