Kenwood KDC-W4044UA Service Manual page 3

BLOCK DIAGRAM
CD PLAYER UNIT (X32-6250-00)
DPU1
Q1
A B
E F APC
C
IC3
FO COIL
FO OUT
TR COIL
TR OUT
MOTOR
DRIVER
DM1
SPINDLE
DM OUT
MOTOR
DM2
LOADING &
SLED FM OUT
MOTOR
KDC-W4044UA/W4044UAY/W4044UG/W4044UGY
KDC-W413UA/W413UAY/W4544U/W4644UY
IC4
SIGNAL A/B/C/E/F SRAM STB
PD
SO
LD
SI
BUCK
RF AMP
+
VREF CCE
SERVO
PIO0
PROCESSOR
+
MP3 DECODER
FO OUT
+
MRST
TR OUT WMA DECODER
+
DM OUT
AAC DECODER
FM OUT Lch
+
1M bit SRAM
Rch
ZDET
A3.3V
AGND
X1
CLOCK
16.934MHz
Q14
D1.5V
OUTPUT
MOTHER
BOARD
(X34- )
SRAM STB
SO
SI
BUCK
CCE
PIO0
R15
LEVEL SHIFT
MRST
RESISTOR
C43
FILTER Lch
C44
FILTER Rch
MUTE L/R
A.GND
IC5
BU1.5V/
D3.3V BU5V
REG P.ON
D.GND
S1
LOS-SW
S2
12EJE-SW
LOE-SW
DRV MUTE
LO/EJ
MOTOR
S7.5V
S.GND
3