KDC-7027/7027Y
3
BLOCK DIAGRAM
SW +5V
A+5V
PICK-UP
DXM-6120V
CD PLAYER UNIT
(X32-5550-00,01)
BOARD
MOTHER
E
F
A
C
B
TR COIL
FO COIL
APC
1 CHIP IC
SERVO
u-COM
IC2
Q1
16.93MHz
CLOCK
X1
DRIVER
MOTOR
IC3
PROCESSOR
LPF
IC4
8V SW
Q3
Q2
SW
S3
S4
S1
S2
D. GND
(0-01)
ONLY
RF AMP
IC1
REF
5V REG
D2
S. GND
A. GND
D. GND
SLED
LOADING
Q5
SW
5V SW
Q4
D. GND
D. GND
LOADING
MOTOR
& SLED
SPINDLE
MOTOR
M2
M
M
M1
7
VREF
L-ch
R-ch
A. GND
A8V
D. GND
BU5V
LOE/LIM SW
8EJE SW
12EJE SW
LOS SW
S7.5V
LO/EJ
MOTOR
S. GND
VREF
VREF
2
2
7
DRV MUTE
MUTE
DOUT
DATA
4
2
CLK
MSTOP
MRST
MUTE L
MUTE R
2
2
H
L
14
4
1
3
2
22
23
11
15
9
10
8
19
17
16
18
20
14
13
12
24
21
LOE/LIM
PON
SUB CIRCUIT UNIT (X16-2080-10)
Operation / Condition / Compatibility
E2PROM for security
Operation / Condition / Compatibility
LCD driver (Include KEY input function)
LCD driver
IC3
Remote control IC
For Remote control sensor
Q1
SW
Key scan start SW “ON” when Q1 base level goes L
Q2
Red LED SW
Red LED is turned on when Q2 base level goes H
Q5
VLCD AVR
Reference voltage
Q6
SW
Power supply control SW “ON” when base level goes L
Q11
Dimmer control
LCD back light control “OFF” when Q11 base level goes L
D26
VLCD AVR
Reference voltage
COMPONENTS DESCRIPTION
www. xiaoyu163. com
QQ 376315150
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TEL 13942296513
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299