Components Description; Electric Unit (X34-339X-Xx); Cd Player Unit (X32-5500-00) - Kenwood KDC-W5031Y Service Manual

ELECTRIC UNIT (X34-339x-xx)

Ref. No. Application / Function
SYSTEM µ-COM
IC1
IC3 POWER SUPPLY
IC4 POWER IC
IC6 MUTE LOGIC
IC7 RDS DECODER
IC8 RESET IC
IC9 MECHA+B
IC10 E-VOL & TUNER
IC11 E2PROM
IC15 LED & VFD+B
Q51 SERGE DET
Q52 BU DET
Q53 ACC DET
Q54 BU5V SW
Q71 SERVO+B CONTROL SW
Q72 SERVO+B AVR
Q73 SERVO+B AVR
Q74 IC3 CONTROL SW
Q91 IC9 CONTROL SW
Q151 PANEL 5V SW
Q152 FL+B SW
Q153 FL+B SW
Q156 EJECT ILLUMI SW
Q252 IC4 STBY SW
Q330 Q351/Q352 MUTE DRIVER
Q351 Lch PREOUT MUTE SW
Q352 Rch PREOUT MUTE SW
Q501 AM RF AMPLIFIER

CD PLAYER UNIT (X32-5500-00)

Ref. No. Application / Function
MECHANISM CONTROL
IC1
MICROPROCESSOR
RF AMP/SERVO CD
IC2
SIGNAL PROCESSOR

COMPONENTS DESCRIPTION

System control.
DC5V x 1, 7.8V x 1, 8.0V x 1, 10.2V, P-CON, P-ANT output.
Signal amplifier.
Mute action control.
RDS decode.
"L" when detection voltage is below 3.6V.
Output voltage 5V for MP3/WMA mecha.
E-vol, tuner, stereo decode.
Save & load for tuner adjustment data.
Output voltage 11.25V for LED and VFD.
"ON" when the base goes "H".
"ON" when the base goes "H" during BU is applied.
"ON" when the base goes "H" during ACC is applied.
"ON" when the base goes "L".
"ON" when the base goes "H".
Output voltage is 7.5V.
Output voltage is 7.5V.
"ON" when the base goes "H". Output voltage is 10.2V.
"ON" when the base goes "H".
"ON" when the base goes "L".
"ON" when the base goes "L".
"ON" when the base goes "H".
"ON" when the base goes "H".
"ON" when the base goes "L".
"ON" when the base goes "L".
Audio preout is muted when the base goes "H".
Audio preout is muted when the base goes "H".
Adjusts for Gain.
Focusing, tracking, sled and spindle servo processing.
Automatic adjustment (Focusing, tracking, gain, offset and balance) operations.
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
generation of servo error (Focusing error and tracking error) signals.
Detection of dropout, anti-shock, track crossing and off-track conditions, included
gain control function during CD-RW.
KDC-MP5029/W5031
/W5031Y/W531Y
Operation / Condition
Operation / Condition
3