LG LRM-519, Service Manual

Page: 117 / 192

4-53
LIC301
uPD63641
ATAPI
LIC201
uP
C3340
HDD[0:1
5
]
/D
IO
W,
/D
IO
R,
/
H
D
M
A
C
K
, P
D
IAG
HDMARQ,
I
O
RD
Y,
HINTR
Q
,/HI
O
CS1
6
HAD[
0:
2
],
/HC
S
0
,
/HCS
1,
/DA
S
P
,HRESE
T
(DSP & MICOM)
(RF)
LIC5
0
2
B
D
7954B
FS
(Motor Driv
e
r)
MDRV, FDRV
, T
DRV
SDRV
1,
SDR
V
2,
Ti/TRV
SDRV
1,
SDRV2,
SFG
LIC501
F
L
ASH(16M)
FD[0:1 5]
FA [0:15 ]
/FRD /FWR /FCS
0
LIC304
SDRAM(16M)
MD[0:15]
MA[0 :15]
/CAS, /RAS LDQM, UDQM /WE, /CAS,
/R
AS
MCLK, MCKE
LIC302
E
2
PROM
/EPRCS, SI, SO, SCLK
RFI
CONTROL LOG
IC
C
P
, S
C
K,
SI
,
SO
EQ
C
K
1,
EQ
C
K
2
TE TE SI
G SE
L
TE,
L
E(P
P
A
L
L)
,T
EC
WRI
T
E
RF
ROPC1, ROPC2 SWRF1,
SWRF2
AL
P
C
OPCTRG
, SHAPCRE,SHAPCW
WOBBLE
S/H
MA
T
R
IX
FE.
FE.
LPP
AWO
B
B
L
E,LP
P
MIRR/DEFF
HOLD
Re
ad
RF
AG
C
RFE
Q
SHS
V
,S
HWB
A
SY/
BC
A
/F
O
K/
DET
E
CTI
O
N
RECD, F
O
K
WL
DO
N(WG
A
T
E*WR/RW)
MIRR/BCA
F
D
[0
,1,4
,5,6
,7
]
/FCS
2
/FWR
D[0:7]
CP
L
IC504
74L
VC374
(D F/F)
D
R
V
_
C
T
R
L0,1
Q[
5,
6]
EF
M
AS
Y
LLOCK FC
EF
M
1
LQ
3
0
2
LQ
301
Q[
0,
1]
Q[
4,
7]
AS
Y
1
.2
SWL
L
OCK
,SWF
C
EFM
FRONT SW.
/L
O
A
D
SW,
/O
P
E
N SW,/E
J
E
CT KEY
3. µ-COM BLOCK DIAGRAM