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SPECIFICATION 5 W per channel min. RMS driven into 4 Ω at 1 kHz with no more than 10% total harmonic Amplifier section Output Power distortion. (IEC268-3) 4 Ω - 8 Ω Speakers/Impedance Tuner section FM tuning range 87.50 MHz - 108.00 MHz AM (MW) tuning range 522 kHz - 1 629 kHz CD player section Dynamic range...
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...
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1.5 Safety Precautions (U.K only) (1) This design of this product contains special hardware and many circuits and components specially for safety purposes. For con- tinued protection, no changes should be made to the original design unless authorized in writing by the manufacturer. Replace- ment parts must be identical to those used in the original circuits.
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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 2 SPECIFIC SERVICE INSTRUCTIONS This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS. SECTION 3 DISASSEMBLY Main body 3.1.1 Removing the REAR COVER (See Fig.1 to 4) (1) Remove the two screws A, two screws B, two screws C and two screws D attaching the REAR COVER.
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3.1.2 Removing the POWER BOARD assembly (See Fig.5) (1) Disconnect the POWER CORD connected to connecter CN407 of the POWER BOARD assembly. (2) Disconnect the connector wire from POWER TRANS- FORMER connected to connector CN406 of the POWER BOARD assembly. (3) Remove the two screws F attaching the POWER BOARD assembly.
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3.1.3 Removing the AMP BOARD assembly (See Fig.6 to 9) (1) Remove the two screws G attaching the AMP BOARD as- sembly. (See Fig.6) (2) Disconnect the card wire from TUNER PACK connected to connector CN303 of the AMP BOARD assembly. (3) Disconnect the connector wire from FRONT BOARD as- sembly connected to connector CN302...
3.1.4 Removing the CASSETTE MECHANISM assembly (See Fig.10) (1) Remove the four screws J attaching the CASSETTE MECHANISM assembly. Fig.10 1-10 (No.MB630)
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3.1.5 Removing the CD MECHANISM assembly (See Fig.11, 12) (1) Disconnect the connector wire from FRONT BOARD as- CN903 sembly connected to connector CN903 of the CD BOARD assembly. (See Fig.11) (2) Remove the four screws K attaching the CD MECHANISM assembly.
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3.1.6 Removing the CHASSIS (See Fig.13, 14) (1) Remove the three screws L attaching the CHASSIS. (See Fig.13) (2) Disengage the two boss engaged both side of CHASSIS. (See Fig.14) Fig.13 boss Fig.14 1-12 (No.MB630)
3.1.7 Removing the FL BOARD assembly (See Fig.15) (1) Remove the five screws M attaching the FL BOARD as- sembly. Fig.15 SECTION 4 ADJUSTMENT This service manual does not describe ADJUSTMENT. (No.MB630)1-13...
SECTION 5 TROUBLESHOOTING BLOCK DIAGRAM Spindle Motor Sled Motor FM ANT AM ANT RDS Module CD MECHA DA11 RDS decoder IC Q403, Q404 IC501 CD Vcc SIGNAL SELECT SW. FM/AM/PLL/TUNER IC IC902 Switch EQ./E.VOL. BTL.Power AMP. 4CH X2 4.5MHz Vcc Switch X901 16.9344MHz X2 4.322MHz...
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5.2 STANDARD SCHEMATIC DIAGRAMS 5.2.1 MAIN SECTION R/P-HEAD L201 FB 3T C214 R207 4.7K R216 C207 L CH CN201 TO R/P HEAD P RCH PLAY_LCH R348 R213 R221 R RCH C250 C251 C204 R346 4.7K C296 333P R297 C208 100PF 100PF R-CTRL Q312...
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Victor company of Japan, Limited Audio/Video Systems category 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan (No.MB630) Printed in Japan...