Block Diagrams; System Block Diagram - LG CM9750 Service Manual

BLOCK DIAGRAMS

1. SYSTEM BLOCK DIAGRAM

SERVO
A,B,C,D,E,F,PD
(VCC50)
BU9546
LD
P/UP
(4X Speed)
SPDO/SLDO
/FOD/TRD
AM5890
M
LOAD±,SLED±, Motor Drive
SPIN±,TR±,F±
D D ECK
OP_SW,CL_SW,UP_SW,DN_SW,D_SENSE
MECHANISM
16 MB(128 Mb)
SDRAM
8 MB(64 Mb)
S/Flash
EEPROM
(+ 3.3 VA ,+ 12 V )
FRONT
VFD_STB/CLK/DO/RST,
IR
Receiver
VFD
DIG311
MAIN VOL_A/B ,
Volume/
Key/switch
USB1 USB2
CD_RST
CD_RW/ MCLK/ LRCK/ BCK,
CD_DAT
D2S+/ - D2S
MOT_MUTE,CLOSE,OPEN EN
DRM_WEN/CAS/
(+ 3.3 V_CD, VCC1.2)
RAS/SEL/CLK/CKE
M00_15
A00_16
MLC3730
Main DSP
SF_DI/DO
SF_CS/SCK
PGPC08
E2PROM
CLK/DAT
VKK,FL+/ -
RMC
KEY 1/2
2.0 1.1
SCRATCH A/B,
M_VOL_A/B,
FAN_CTRL /2,
Search_A /B,EQ HIGH/LOW
IC101
Micom
UART_RX/TX
ADC_DATA
MCS_BCK/LRCK/MCLK
For AUX
For MIC
AMP_OSC
RL_OUT_P/N
FL_OUT_P/N
PS9860
SW_OUT_P/N
PWM
RR_OUT_P/N
Speaker Lighting
FR_OUT_P/N
3-43 3-44
DAC
DRV632
PCM5101
IC201
ADC
CS5346
PRE,AMP
PCM1808
S4308
(± 5 V ) (± 57 V )
IR_IN_RL DRIVER FET
OP AMP
IRS2092 IRF6775
AZ4580
X 2
DRIVER FET
IR_IN_FL
OP AMP
IRS2092 IRF6775
AZ4580
X 2
DRIVER FET
IR_IN_SW
OP AMP
IRS2092 IRF6775
AZ4580
X 2
DRIVER FET
IR_IN_RR
OP AMP
IRS2092 IRF6775
AZ4580
X 2
DRIVER FET
IR_IN_FR
OP AMP
IRS2092 IRF6775
AZ4580
X 2
SE
RL
FL
SW
RR
FR