Kenwood KDC-MP5033, Руководство по обслуживанию

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3
KDC-MP332/MP5033
KDC-W534/W534Y
COMPONENTS DESCRIPTION
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ELECTRIC UNIT (X34-417x-xx)
Ref. No. Application / Function Operation / Condition
IC1 System
µ
-com System controller.
IC3 Power Supply DC5V x 1, 7.8V x 1, 8.0V x 1, 10.2V, P-CON, P-ANT output.
IC4 Power IC Signal amplifier.
IC6 Mute logic Controls for mute action.
IC7 RDS Decoder RDS decoder.
IC8 Reset IC “L”: detection voltage below 3.6V
IC9 MECHA+B Outputs 5V for CD mechanism.
IC10 E-VOL.& Tuner E-VOL, Tuner, Stereo decoder.
IC11 E2PROM Saves and loads for tuner adjustment data.
IC15 LED & VFD+B Outputs 11.25V for LED and VFD.
Q51 Serge Det. ON when the base goes “Hi”.
Q52 B.U. Det. ON when the base goes “Hi” during BU applied.
Q53 ACC Det. ON when the base goes “Hi” during ACC applied.
Q54 BU5V SW ON when the base goes “Lo”.
Q71 Control SW for SERVO+B ON when the base goes “Hi”.
Q72,73 SERVO+B AVR Output voltage is 7.5V.
Q74 Control SW for IC3 ON when the base goes “Hi”. Output voltage is 10.2V
Q91 Control SW for IC9 ON when the base goes “Hi”.
Q151 Panel 5V SW ON when the base goes “Lo”.
Q152 FL+B SW ON when the base goes “Lo”.
Q153 FL+B SW ON when the base goes “Hi”.
Q156 EJECT ILLUMI SW ON when the base goes “Hi”.
Q330 Mute driver for Q351, Q352 ON when the base goes “Lo”.
Q351 Mute SW for Lch PREOUT Audio pre-output is muted when the base goes “Hi”.
Q352 Mute SW for Rch PREOUT Audio pre-output is muted when the base goes “Hi”.
Q501 AM RF Amplifier Adjusts for gain.
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SWITCH UNIT (X16-349x-xx)
Ref. No. Application / Function Operation / Condition
IC2 Remote Control IC
Q4,5 SW5V The base of Q4 goes “L” when the base of Q5 is “H” and the power supply of IC2 is turned on.
Q10 GREEN LED SW GREEN LED is turned on when the base level of Q10 goes “H”.
Q12 GRID1 SW When the base of Q12 is “L”, the current is supplied to G1.
Q13 GRID2 SW When the base of Q13 is “L”, the current is supplied to G2.
Q14 GRID3 SW When the base of Q14 is “L”, the current is supplied to G3.
Q15 RED LED SW RED LED is turned on when the base level of Q15 goes “H”.
Q20 Key Scan Start SW Key scan starts when the base of Q20 goes “H”.