Kenwood KDC-MP5028 Service Manual page 4

KDC-MP5028/MP528
/W6031/W6031Y
SWITCH UNIT (X16-2920-11/3142-70)
Ref. No.
IC1 VFD Driver
IC2 Remote Control IC
Q1 SW5
Q2,Q3 FL+ SW
Q4 GREEN LED SW
Q5 RED LED SW
Q6,Q7 VFL SW
GREEN LED SW
Q8
(TRIANGLE LED)
CD PLAYER UNIT (X32-5740-0x)
Ref. No.
IC1 A3.3V regulator
IC2 Ope amp for low-pass filter
IC3 4ch BTL driver
µ-com
IC4
IC5 Bu 3.3V regulator
IC6 D3.3V regulator
IC7 Audio DAC built-in servo DSP
IC8 Memory IC
IC11 Buffer IC
Q1 A3.3V discharge circuit
Q4 Electric AMP
Q5,6 SW 5V
Q7,8 SW 8V
D1 For electric AMP
ELECTRIC UNIT (X34-342x-xx/3762-71)
Ref. No.
System µ-com
IC1
IC2 E-vol IC
IC3 Regulator IC for A8V
IC4 Power IC
IC5 Regulator IC for ILL+B (10.65V)
IC6 Logic IC for muting
IC7 Reset IC
IC8 Motor Driver IC for Slide panel mecha
IC9 RDS Decoder IC
IC10 Rom IC for Installer-Memory and Rom-Correction
4
COMPONENTS DESCRIPTION
Application / Function
Application / Function
Application / Function
Operation / Condition / Compatibility
The power supply for IC2 is turned on when Q1's base level goes "L".
The power supply for filament is turned on when Q3's base level goes "H".
GREEN LED is turned on when Q4's base level goes "H".
RED LED is turned on when Q5's base level goes "H".
The power supply for IC1's VFL is turned on when Q7's base level goes "H".
GREEN LED (TRIANGLE LED) is turned on when Q8's base level goes "H".
Operation / Condition / Compatibility
Power supply for audio 3.3V
Driving spindle motor and loading/ejection operation
Power supply for backup 3.3V
Digital 3.3V power supply
MP3, WMA, and AAC compatible
Used only for 0-02 destination
Level shift
Adjusts current to be sent to laser
Operation / Condition / Compatibility