TCL PDP42U3H, Service Manual

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add
TB1274
PDP42U3H
1
VIDEO DECODER
18 21
Monday, June 14, 2004
Title
Size Document Number Rev
Date: Sheet of
VS_1274
Sync_VCC
Digital_VDD
SCL_5V
HS_1274
SDA_5V
VS_1274 16
HS_1274 16
Y_1274 16
Y_STB 19
V_STB 19
U_STB 19
Y_PANEL 16,19
SCL_5V 1,4,17
SDA_5V 1,4,17
CVBS 17
FSC 17
COMB_C 17
COMB_Y 17
Cr_PANEL 16,19
Y_PANEL 16,19
Cb_PANEL 16,19
JTEST 4,16
Y_STB 19
U_1274 16 V_1274 16
AGND1
AGND1
AGND1
AGND1
AGND1
AGND1
AGND1
AGND1
AGND1
AGND1
AGND1
AGND1
AGND1
+5V_DECODER
AGND1
AGND1
AGND1
+5V_DECODER
+5V_DECODER
+5V_ANALOG
AGND1
+5V_DECODER
AGND1 AGND1
AGND1
+5V_DECODER
+5V_DECODER
AGND1
+5V_DECODER
AGND1
AGND1
Q001
C1815
C20
47uF/16V
C24
0.47uF/16V
R009
470
C29 0.1uF
C30 0.1uF
C28 0.1uF
U3A
SN74LVC14APWR
1 2
14
7
RS2 0
C44
0.01uF
C37
100uF/16V
C34
47pF
C39
470uF/25V
C32 0.1uF
C18 0.1uF
C19 0.1uF
R43 0
C43
47uF/16V
R011
470
R42 10K
ORS1
0
C27 0.1uF
C22
0.01uF
Y1
16.2M
L5
100uH
Q002
C1815
U4
1 2 3 4 5 6 7 8 9 10 11 12 13 14
38 37 36 35 34 33 32 31 30 29 28 27 26 25
24
23
22
21
20
19
18
17
16
15
39
40
41
42
43
44
45
46
47
48
CVBS1/ Sync-i
n
CVBS-
out
VS Comb Y-
in
Digital-
VDD
Comb C-
in
Digital-
GND
HS SCP Yvi
-out
Sync-
VCC
SCL SDA
X'
tal
fil
YS/YM
R2-
in
G2
-in
B2-
in
Y/C-
VCC
Y2-
in
Cb2-i
n
Cr
2-
in
Y/C-
GND
R1-
in
G1
-in
B1-
in
YS1
Cr-out
Cb-out
Y-out
CLP-fil
Y1-in
Cb1-in
Cr1-in
Sync-GND
YS3
C3-in
APC-fil
CVBS3/Y3-in
ADDRESS
C2-in
CVBS2/Y2-in
Comb SYS
Fsc-out
AFC-fil
C1-in
R51
6.8K
RS1 0
Q18
C1815
R45 100
R008 0
L4 100uH
R49 100
R47 100 CS4
0.1uF
C36
47pF
R40
27K
R012 0
R013
470
R010 0
R41 0
C25 0.01uF
C31
2200pF
R50 100
C373
2700F
C010
10uF/16V
Q003
C1815
Q7
C1815
C38
0.01uF
L7
100uH
C011
0.01uF
C372
NC
C41
0.01uF
R52
2.7K
C26 4.7uF/16V
C42
470uF/25V
R300
470
C35 0.1uF
CS1
0.1uF
R44
1K
C21 0.1uF
C40
47uF/16V
CS2
0.1uF
R48
0
C23 4.7pF
R46
470
CS3
0.1uF
L6
100uH
C33
2.2uF/16V
NC1
0.01uF
41