LG RC-185, Service Manual

Page: 69 / 165

3-77 3-77
2. VDR MAIN H/W BLOCK DIAGRAM
SP
I
BUFFER
74H
C
T
125
D
V
1394
TSB4
1AB
TP
BI
O_
PHY
_
DAT[7
:0
]
SP
I
HD[1
5
:0
]
D
[15:0
]
MEMC_RST
GPIO4
H
D
_
A
T
[15:0
]
A
T
A_A[4
:0]
ATA
P
I_DATA[
1
5
:0]
A
tap
iAdd
r[
4:0
]
DDR
SDRAM
DVD RW
DRIVE
MEMORY
SL
OT
MEMC_OE
OE-
MEMC_WE
LWE-
MEMC_IRQ
GPIO0
HO
ST
IF
B
A
[18
:16]
,
BA
[2
0
],
/B
A[
2
0
]
SP
I
SIO_SP
I
AV
_RST
GPIO5
BI
O_
PHY
_
DATA
PHY
_
CO
NTROL
BIO_LI
N
K_O
N
, BIO_
CLK
S
U
PE
R
_
Y/
C
_
IN
M
IX_
V_O
U
T
V
I_
D
[7:0
]
V
I_
D
[9:2
]
VI_CLK
VI_CLK
CVB
S
/Y
/C
/Y
/P
b
/Pr
CVB
S
/ Y /
C
/
G_
Y / B
_
P
b
/
R
_
Pr
DAC[
1:
6
]
SIF TU_
A
_
L
/R
_
O
UT
SUP
E
R_
Y
/C
MIX
_
YC
RGB
_
IN,
VCR_V
_
IN
SIF T
U
_A_L
/R
_O
U
T
V
C
R
_
A_L
/R_I
N
VCR_
A
_
L/R
_
IN
AI
_D
0
AI_SCLK
AUDIO VI
DEO SAA7137
HDMI
BOARD
A0_
IE
C
958
GPIO3
VO_
D
[15:0
]
VO
_
C
L
K
HDMI_IR
Q
SCL
/
SDA
HDMI_RS T
IDC_C
L
K
/D
A
T
SP
I_
CS
1
VO
_
C
L
K
VO_
D
[15:0
]
AO
_
M
C
L
KO
DVD_
A
_
L/R
_
OU
T
DVD_
A
_
L/R
_
O
U
T
AUDIO
CS4351
AO
_
D
0
AO
_
S
CLK
AO
_
M
C
L
K
I
AO
_
M
C
L
KO
IEC
9
5
8
TP
FLA
S
H
Me
mory
Latch
74LVT16373
B
A
[1
:5,22
]
M
A
[1
:5,22
]
/FCS
0
CS0-
EEPROM
B
A
[6
:21]
B
A
[1
:22]
IE
C958
VCR BOARD
Z_MUTE
_
L
/R
Z_MUTE
_
L
/R
RGB
_
IN,
VCR_V
_
IN
KARAOKE
BOARD
MIC_
L/R
MIC_
L/R
DVD_R
ES
ET
VDR_R
E
S
E
T
_
L
/E
5
_
R
S
T
RST
/S
YS
_RST
VDEC_IRQ
GPIO2
LO
GICAL
GATE