Block Diagram - LG CJ87 Service Manual

BLOCK DIAGRAM

CD
A,B,C,D,E,F,PD
(VCC50)
SERVO
LD (4
P/UP
SPDO/SLDO
/FOD/TRD
Motor Drive
M
LOAD± ,SLED ± ,
SPIN± ,TR± ,F±
DECK
OP_SW,CL_SW,UP_SW,DN_SW,D_SENSE
MECHANISM
32MB(256Mb )
SDRAM
16MB(128Mb )
S/Flash
8MB(64Mb )
S/Flash
(+3.3VA,+12V)
FRONT
Party Thruster
VFD
Volume/
Key/switch
BT
CD_RST
)
CD_RW/MCLK/LRCK/BCK,
CD_DAT
MOT_MUTE,CLOSE,OPEN
DRM_WEN/CAS/
(3.3V, 1.2VA)
RAS/SEL/CLK/CKE
M00_15
A00_16
IC501
SF_DI/DO Main DSP
SF_CS/SCK
SF_DI/DO
SF_CS/SCK
SLIDE_0
VFD_STB/CLK/DO/RST
MAIN VOL_A/B ,
KEY 1/2/3
USB1 USB2
SCRATCH A/B,
TOP_LED, FRONT_AGL,
MID_AGL, WOOFER_AGL
MIC_DET, PTB_DET,
SEARCH A/B
D2S+/ -
IC101
SPK_EXP
MICOM
CLK/DAT/LAT
UART_RX/TX
ADC_DATA
MCS_BCK/LRCK/MCLK
MIC_DATA_IN
AMP_OSC
RL_OUT_P/N
FL_OUT_P/N
IC202
PWM
SW1_OUT_P/N
RR_OUT_P/N
FR_OUT_P/N
3-43 3-44
AUX
FM/AM
IC603
IC201
ADC
PTB
IC30A1
PRE,AMP
(± 5V) (± 66V)
IR_IN_RL
FET
OP AMP DRIVER
X 2
FET
IR_IN_FL
OP AMP DRIVER IRF6775
X 2
FET
IR_IN_SW1
OP AMP DRIVER IRF6775
X 2
FET
DRIVER IRF6775
IR_IN_SW2
X 2
FET
IR_IN_RR
OP AMP DRIVER IRF6775
X 2
FET
IR_IN_FR
OP AMP DRIVER IRF6775
X 2
MIC1
MIC2
MID L
HIGH L
LOW 1
LOW 2
MID R
HIGH R