LG 37LB1D-UB, Руководство по обслуживанию

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VIDEO TROUBLESHOOTING & BLOCK DIAGRAM
MUX
CP
L
D
LGDT35
02
P
O
D
/OO
B
Control
le
r
Vid
eo In/
Out
Vid
eo In/
Out
Si
de A
V
_
2
V,
LR
3
Re
a
r A
V
_
1
V,
LR
3
Re
a
r S_1
YC
2
Si
de S_2
YC
2
MNT_
V_
Ou
t
M_
M
S
P
444
0
AV
_
L
/R
_
O
U
T
LR
2
IN
1
OUT2
OUT1
OUT1
TV
IN
4
IN
1
IN
4
IN5
OUT3
RGB-P
C
5
RGB
HV
Comp_
1
YCbCr
3
Comp_
2
YCbCr
3
uCom
MTV416
IN
2
IN
3
IN
4
C
X
A
2069
Comp_
1
LR
2
A
T
/N
T_S_Tune
r
OR
1
656 Data[
0:7]
TP
/D1
8
2
YCbCr
20
H,V 2
FID
OR1 OR2
YCbCr
30
H,V FID
Vi
deo Dec
oder
(UP
D64
0
1
5
)
X
-ta
l
(2
4.576M
)
Sy
st
e
m
C
P
L
D
H,V
H,V
AD
C
(M
S
T
33
61)
FID
2
LP
F
LP
F
HV_
P
C
HV_pol
OR
1
YCbCr
30
H,V
2
2
3
YCbCr
OR
2
A
T
/N
TSC Tune
r
AT
S
C
/N
T
S
C
/
O
O
B
Tun
e
r
V
RF
SW
Cabl
e
AN
T
.
V
IF_
A
G
C
2
nd
IF
rr(6
M)
U-Com
SIF
X-tal
(25M)
POD
1394
Controll
e
r
(T
S
B
43
DA42
)
(TP
A
rr,TPB
rr) *
2
4
D
OO
B
I
F
+
/-
PI
PO
8
8
8
Ad
d
.
[0
:13]
14
D
R
X
/
CRX
2
P
O
D_T
P
[0
:7
]
CLK,V
A
L
ID
,S
O
P
KIA
70
29
74L
C
X
2
4
4
Res
e
t
HV,Hac
t
RGB
30
3
DOutClk
LVDS
T
x
.
(T
HC
63LVD
1
0
3)
T
X
[0:4]
±
TX
C
±
12
VCX
O
27Mh
z
LGDPLL
(LGDT1901
B)
H
D
2
_
VD
PC
lk
(7
4
.2
5
M)
HD
2_S
Y
S
_
C
L
K
R
S
-232
C
(S
T3232
)
HD
M
I_SPD
IF
SPD
IF
Sy
st
e
m
CP
L
D
I2
C Hub
(P
C
A
9516)
II
C
1
E
N
[0
:3
(G
P
IO
)]
4
CPU [PPC 405
GPr]
-
S
DR
AM Cont
roller
-
P
erip
hera
l C
ontro
ller
-
Loca
l BU
S
I/F
-
S
eria
l(2), GPIO,
I
2
Cr
1.8V Re
g.
EEP
ROM
(A
T
2
4L
C5
12
)
Voltage
Contr
o
ll
e
r
LT
C
1
4
7
0
VPP_S
W
VPP_S
W
Fla
g
VPP1 VPP
MNT_
Ou
t
LR
2
SI
F
LR
2
Comp_
2
LR
2
RGB(Phone)
LR
2
I2S
Out
3
HD-2.
4
AN
ALOG_L
/R
B
SS83
BSS83
8
2
RX
D[0
:2
]
±
, RX
CLK
±
DDC
(I
2C)
RGB
H,V,DE
3
30
RE
SET
HD
2_
M
A
IN
_P
W
M
CP
L
D
IEP3
SPD
IF_
IN
_BY
P
A
S
S
A
UDI
O A
D
C
(CS5
33
1)
I2S
In
3
PW
M
MO
D
U
L
A
T
O
R
(N
SP
21
00
A
)
I2S I2S_MC
L
K
PW
M A
M
P
(T
A
S
5122
)
PW
M_
L
/R
GS_
Y_2
0
6
9
GS_
V_T
U
MA
IN
_
C
VB
S
SY
NC
S
E
P
AR
AT
O
R
(M
M
1
10
8X
F)
AN
AL
O
G
D
E
/
M
U
LTIPL
EXER
(74H
CT4
053)
U-COM
(PIC18
F12
20)
H,
V
G_LIN
K_C
ON
N
UA
R
T
1_R
X
/T
X
GEM_
IR_OUT
Vo
lt
age
Comp.
(LM3
1
1
M
)
B
U
FFE
R
(M
C
330
78)
M
S
T
33611_
H
D
MI
II
C
1
0XC2
II
C
1
0XC0
II
C
2
0xB8
II
C
2
0xBA
II
C
2
0x9C
II
C
3
0x1
C
II
C
1
0xA6
II
C
2
0x1E
II
C
4
0x6C
II
C
2
0x9C
II
C
4
0x90
2
11
II
C
2
II
C
3
II
C
4
M_
M
S
P
444
0
SIF
II
C
4
0x84
Vi
deo SW
(CXA
2181)
EPF_RGB-
PC
RGB
H
V
5
IN
1
A
T
/N
T_M
_Tuner
Ma
in
Sound Pr
o
c
(M
SP4
44
0
)
IIC 4
0x80
Sub
MS
P
445
8G
A
T
/N
T Tu
ner
Rea
r L/R
Si
de L
/R
I2S
(M
ain)
(Sub)
PDR
656[
0:7]
1394_OU
T_TP[
0:7]
1394_IN_TP[
0:7]
PVRsoc
(L
GD
T1303)
PC_TPOU
TI
C
P
_TPN
1[0:7]
HD2_TP[ 0:7]
C
P
_TPN
2[0:7]
HD-2.4
-TP D
e
-Mux
-
M
PE
G De
c
odi
ng : MP@HL
-Form
at Co
n
v
e
rter
-Host I/F
,
M
e
mo
ry
I
/F
-Digital
I
/F
-NTSC E
n
cod
er
-A
C-3
D
e
cod
er
/SPD
IF
In
/out
-IEP
2
C
Y
23
05
S
C
HD
2_
N
T
2C
LK
PVR_SY
S_
C
L
K
EPL
D_
CL
K
D
P
LL
_R[1:3]
HD2_IC
E958_O
U
T
XD
R_
DATA_R/G
/B
[0
:9
]
PVRSoc
Sub
M
SP4458G
SDRAM
32
M
B
y
te
(8
MB
x
4
)
Periph
eral B
u
s
64-B
it I/F
C
o
n
tro
l GPIO
Periph
eral B
u
s
DDR
32Mb
S
A
T
A
I/
F
(S
iI3512
)
X
-ta
l
(25M)
TX/R
X P1,N1
TX/R
X P2,N2
PCI
Bus
PCI
Bus
II
C
3
0x50
IIC 4
0x88
VBI
S
li
c
er
& IR
(US
A
On
ly
)
OO
B/
PO
D C
o
n
tro
ll
e
r (
U
S
A
On
ly
)
Fl
ash Memor
y
16MB(8MBx
2)
32B
it B
u
s I/F
IN
3
IN
6
H
D
2
_
RE
C_
CVBS
CX
A
2
0
6
9
EPF_
L
/R
A
/V SW
(C
X
A
2
0
69)
H
D
2
_
CV
BS
_
O
UT
HD
-I
I
SDRA
M
64MB(32MBx
2)
PW
M A
M
P
(T
A
S
5122
)
LGDT37
03
Ma
in
VSB
D
A
T
A
11
Fi
lter(opt)
(F
M
S
6410)
Fi
lter(opt)
(F
M
S
6410)
2
2
SDRA
M
(1M
x
1
6
Bit)
Vi
deo Dec
oder
(UP
D64
0
1
5
)
X
-ta
l
(24.576M
)
SDRA
M
(1M
x
1
6
Bit)
2
EEPR
OM
EEPR
OM
8
RX
D[0
:2
]
±
, RX
CLK
±
DDC
(I
2C)
EEPR
OM
EEPR
OM
B
SS83
BSS83
HD
M
I R
x
M
S
T
336
1
PIC18F242
CP
U
X-tal
(25M)
II
C
2
0xB2
LGDT37
03
S_
MS
P
445
8G
IF_
A
G
C
2
nd
IF
rr(6
M)
MU
X
CP
L
D
V/Q
_T
P
PC_TPOUT2
II
C
3
0x12
P_S
W_2
LPF(OPT)
(FM
S64
03)
SYS
CP
L
D
CLK
CLK
EXT_IN_
CL
K
SYS
CP
L
D
CLK
SUB
_65
6
_
C
L
K
656
C
L
K
C
Y
23
09
CP_65
6
_
C
LK
MU
X
CP
L
D
CP
_
6
5
6
[0
-7
]
C
Y
23
09
OR2
OR
3
CP
L
D
OR
3
OR
3
HD2
DE
FID
74L
C
X
24
4
PI_CL
K
B
PI_CL
K
D
R
X
/
CRX
O
O
B
_EN1_2
D
R
X
/
CRX
74L
C
X
14
SEL
• Block Box-show the IN/OUT connections
GS_
Y_1
VCX
O
33.33Mhz
C
Y
23
09
S
C
CP
U_
CL
K
PC
I_CLK_PVR
PCI_CLK_1
394
PC
I_C
LK_SATA
AH
_SPD
IFC
LK
HD
2_
D
A
C
_
S
C
K/LRCK
SPDI
F Recei
v
e
r.
(CS8
41
5
A
)
•
DCR DVR