3
KDC-MP5029/W5031
/W5031Y/W531Y
COMPONENTS DESCRIPTION
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ELECTRIC UNIT (X34-339x-xx)
Ref. No.
Application / Function
Operation / Condition
IC1
SYSTEM
µ
-COM
System control.
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
Mute action control.
IC7
RDS DECODER
RDS decode.
IC8
RESET IC
“L” when detection voltage is below 3.6V.
IC9
MECHA+B
Output voltage 5V for MP3/WMA mecha.
IC10
E-VOL & TUNER
E-vol, tuner, stereo decode.
IC11
E2PROM
Save & load for tuner adjustment data.
IC15
LED & VFD+B
Output voltage 11.25V for LED and VFD.
Q51
SERGE DET
“ON” when the base goes “H”.
Q52
BU DET
“ON” when the base goes “H” during BU is applied.
Q53
ACC DET
“ON” when the base goes “H” during ACC is applied.
Q54
BU5V SW
“ON” when the base goes “L”.
Q71
SERVO+B CONTROL SW
“ON” when the base goes “H”.
Q72
SERVO+B AVR
Output voltage is 7.5V.
Q73
SERVO+B AVR
Output voltage is 7.5V.
Q74
IC3 CONTROL SW
“ON” when the base goes “H”. Output voltage is 10.2V.
Q91
IC9 CONTROL SW
“ON” when the base goes “H”.
Q151
PANEL 5V SW
“ON” when the base goes “L”.
Q152
FL+B SW
“ON” when the base goes “L”.
Q153
FL+B SW
“ON” when the base goes “H”.
Q156
EJECT ILLUMI SW
“ON” when the base goes “H”.
Q252
IC4 STBY SW
“ON” when the base goes “L”.
Q330
Q351/Q352 MUTE DRIVER
“ON” when the base goes “L”.
Q351
Lch PREOUT MUTE SW
Audio preout is muted when the base goes “H”.
Q352
Rch PREOUT MUTE SW
Audio preout is muted when the base goes “H”.
Q501
AM RF AMPLIFIER
Adjusts for Gain.
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CD PLAYER UNIT (X32-5500-00)
Ref. No.
Application / Function
Operation / Condition
Focusing, tracking, sled and spindle servo processing.
IC1
MECHANISM CONTROL
Automatic adjustment (Focusing, tracking, gain, offset and balance) operations.
MICROPROCESSOR
Digital signal processing (DSP, PLL, sub-codes, CIRC error correction, audio data
interpolation) operations, and microcomputer function.
Generation of RF signal based on the signals from the APC circuit and pickup, and
IC2
RF AMP/SERVO CD
generation of servo error (Focusing error and tracking error) signals.
SIGNAL PROCESSOR
Detection of dropout, anti-shock, track crossing and off-track conditions, included
gain control function during CD-RW.