3-29
3-30
BLOCK DIAGRAMS
1. SYSTEM BLOCK DIAGRAM
Copyright © 2018 LG Electronics Inc. All rights reserved.
Only for training and service purposes.
II C501
Mai n DSP
( +3. 3V_CD, VCC1. 2)
DECK
MECHANI SM
M
P/ UP
( VCC50)
FRONT
Vol ume/
Sear ch A/ B
Key
( +3. 3VA, 5V, +12V)
16MB
SDRAM
1MB
Fl ash
I C400
Mot or Dr i ve
USB1
USB2
SERVO
I C401
( 4 X)
I C201
DRM_WEN/ CAS/
RAS/ SEL/ CLK/ CKE
Speaker
Li ght i ng
ADC_DATA
MCS_BCK/ LRCK/ MCLK
M00_15
A00_16
SF_DI / DO
SF_CS/ SCK
VFD_STB/ CLK/ DO/ RST,
MAI N VOL_A/ B , Sear ch A/ B, KEY
OP_SW,CL_SW,UP_SW,DN_SW,D_SENSE
MOT_MUTE, CLOSE, OPEN
A, B, C, D, E, F, PD
LD
SPDO/ SLDO
/ FOD/ TRD
LOAD± , SLED± ,
SPI N± , TR± , F±
D2S+/ -
P
W
M
_
L
R
C
K
/
B
C
K
/
D
A
T
A
CD_RW/MCLK/ LRCK/ BCK,
CD_DAT
CD_RST
D
For AUX
1. 1
2. 0
4MB
S/ Fl ash
SF_DI / DO
SF2_CS/ SCK
AUX I N
TUNER
( FM/ AM)
PTB
MI C
D1+/ -
FM/AM
I C200
I R
Recei ver
MD
Bl ock
VFD
ANALOG I NPUT Bl ock
FRONT Bl ock
RMC
FRONT( BTL)
SW(PBTL)
[CK57 : Total 2.1ch 1100W
350+350+400]
[CK56 : Total 2ch 700W]
LPF
AMP
I c701
PWM
I C700
FRONT( BTL)
PWM + AMP Bl ock
AMP
I C702
CK57 Only
LPF