Block Diagrams; System Block Diagram - LG CK57 Service Manual

BLOCK DIAGRAMS

1. SYSTEM BLOCK DIAGRAM

SER VO
A, B, C , D , E, F, PD
( VC C 50)
I C 401
LD
P/ U P
( 4 X)
SPD O / SLD O
/ FO D / TR D
I C 400
M
LO AD ± , SLED ± , M ot or D r i ve
SPI N ± , TR ± , F±
D EC K
O P_SW , C L_SW , U P_SW , D N _SW , D _SEN SE
M EC H AN I SM
M D
16M B
Bl ock SD R AM
1M B
Fl ash
4M B
S/ Fl ash
( +3. 3VA, 5V, +12V)
FR O N T
I R
R ecei ver
VFD
Vol um e/
Sear ch A/ B
Key
FR O N T Bl ock
C D _R ST
C D _R W / M C LK/ LR C K/ BC K,
C D _D AT
M O T_M U TE, C LO SE, O PEN
D R M _W EN / C AS/
( +3. 3V_C D , VC C 1. 2)
R AS/ SEL/ C LK/ C KE
M 00_15
A00_16
I I C 501
M ai n D SP
SF_D I / D O
SF_C S/ SC K
SF_D I / D O
SF2_C S/ SC K
R M C
VFD _STB/ C LK/ D O / R ST,
M AI N VO L_A/ B , Sear ch A/ B, KEY
2. 0 1. 1
U SB2
U SB1
D 1+/ -
D D 2S+/ -
AD C _D ATA
M C S_BC K/ LR C K/ M C LK
For AU X
PW M
I C 700
Speaker
Li ght i ng
3-29 3-30
AN ALO G I N PU T Bl ock
I C 201
I C 200
LPF
FR O N T( BTL)
AM P
I C 702
FR O N T( BTL)
CK57 Only
LPF
SW(PBTL)
AM P
I c701
PW M + AM P Bl ock
[CK57 : Total 2.1ch 1100W
350+350+400]
[CK56 : Total 2ch 700W]
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AU X I N
FM/AM TU N ER
( FM / AM )
PTB
M I C
Only for training and service purposes.