Sylvania LC420SS8, Service Manual

Page: 27 / 68

7-5
A81H1BLLCD
DIGIT
AL MAIN CB
A UNIT
IC4201
(L
VDS TRANSMITTER)
TU3001 (TUNER UNIT)
TU-SCL
TU-SD
A
TU-SCL TU-SD
A
D
VI-
V
-SYNC
D
VI-
H-SYNC
D
VI-
CLOCK
DTV
-IF(+)
DTV
-IF(-)
T
O
VIDEO
INPUT SELECT BLOCK DIA
GRAM
HDMI-IN1 HDMI-IN2
JK4002
TMDS-D0(+) TMDS-D0(-) TMDS-D1(+) TMDS-D1(-) TMDS-D2(+) TMDS-D2(-) TMDS-CLK(+) TMDS-CLK(-) DDC D
A
T
A
DDC CLK
IC3203
(FLASH MEMOR
Y)
IC3204
(SDRAM)
PLL
TTL P
ARALLEL
TO LV
D
S
R D
A
T
A(0-7)
G D
A
T
A(0-7)
B D
A
T
A(0-7)
VIDEO DECODER /OSD A
UDIO
DECODER
DTV/HDMI -A
UDIO SIGNAL
T
O
A
UDIO-2
BLOCK DIA
GRAM
D
A
T
A(0-7)
D
A
T
A(0-7)
D
A
T
A(0-15)
D
A
T
A(0-15)
ADDRESS(0-15)
ADDRESS(0-15)
HDMI DECODER
SD
A
SCL
DIGIT
AL
SIGNAL PR
OCESS
IC3301
(DIGIT
AL SIGNAL PR
OCESS)
IC4002
(HDMI SW)
VIDEO SIGNAL
AUDIO SIGNAL
LCD MODULE
CN4201
TX1O-D
AT
A0(+)
7
TX1O-D
AT
A0(-)
6
TX1O-D
AT
A1(+)
9
TX1O-D
AT
A1(-)
8
TX1O-D
AT
A2(+)
11
TX1O-D
AT
A2(-)
10
TX1O-D
AT
A3(+)
17
TX1O-D
AT
A3(-)
16
TX1O-CLOCK(+)
14
TX1O-CLOCK(-)
13
TX1E-D
AT
A0(+)
21
TX1E-D
AT
A0(-)
20
TX1E-D
AT
A1(+)
23
TX1E-D
AT
A1(-)
22
TX1E-D
AT
A2(+)
25
TX1E-D
AT
A2(-)
24
TX1E-D
AT
A3(+)
31
TX1E-D
AT
A3(-)
30
TX1E-CLOCK(+)
28
TX1E-CLOCK(-)
27
36 37 33 34 31 32 26 27 28 29
11 54 55
A10
49 50 46 47 44 45 38 39 41 42
AD1 AC
4
AD2 AH10
P3 P4
T3 T4
V4 V3 M3 M4
L2 L1
B10 D10
AK20 AK19
21
VIDEO
4
20 14 15
AH6 AG
6
AH20 AG15
AJ19 AK21
AG21 AH14
7 9 4 6 1 3
10 12 16 15
7 9 4 6 1 3
10 12 16 15
JK4004
TMDS-D0(+) TMDS-D0(-) TMDS-D1(+) TMDS-D1(-) TMDS-D2(+) TMDS-D2(-) TMDS-CLK(+) TMDS-CLK(-) DDC D
A
T
A
DDC CLK
22 21 25 24 28 27 19 18 31 30
7 8 5 4 1 2
10 11 77 78
62 61 65 64 68 67 59 58 70 71
HDMI SW
DEMOD
.
MA
TRIX
VIDEO ADC
VIDEO-IN2 D
VI-V
-SYNC
D
VI-D
A
T
A(0-23)
D
VI-H-SYNC
D
VI-CLOCK
D
VI-V
-SYNC
Y3,Y4,AA1-AA4, AB1-AB4,A
C1,A
C2,
AD3,AD4,AE1-AE4, AF1-AF4,A
G1,A
G2
D
VI-H-SYNC
D
VI-CLOCK
S-VIDEO-C-IN2 S-VIDEO-Y
-IN2
VIDEO-IN1 S-VIDEO-C-IN1 S-VIDEO-Y
-IN1
3-10 1,2, 93-96, 99,100 85-92
A12,A13,B12, B13,C12,C13, D12,D13 A8,A11,B9, B11,C9,C11, D9,D11 A6,A7,B7, B8,C7,C8, D7,D8
29-32, 41-44
A
G3,AH1-AH3,
AJ1-AJ3,AK2 G27,G28,H27, H28,J27-J30, K28-K30,L27, L28,M27-M29
B1,B9,C2,C8, D1,D3,D7,D9, F1,F9,G2,G8, H1,H3,H7,H9
C27-C30, D27-D30, E27-E30, F27-F30
L1-L3,M2,M3, M7,M8,N2,N3, N7,N8,P2,P3, P7,P8,R2
Q3003 B
UFFER
LCD Drive Block Diagram