Panasonic TH-50PX20U-P Service Manual page 81

14.17. TA, TB and H-Board Block Diagram
TA
Tuner Board
TNR201
1st TUNER T11
VIDEO 18
AUDIO 14
S_CLOCK
4
S_DATA
5
T12
AFC1
16
TB
Tuner Board
TNR251
2nd TUNER T21
VIDEO 18
S_CLOCK
4
S_DATA 5
T22
AFC2
16
JK002
Y1
Y
C1
VIDEO1
IN C
S1
V1
V
L1
L
R1
R
Y2
Y
C2
C
S2
VIDEO2
IN
V2
V
L2
L
R2
R
JK001
V
PROG
L
OUT
R
JK003
Y1
Y1
PB1
PB1
COMPONENT1 PR1
PR1
IN
L1
L1
R1
R1
JK004
Y2
Y2
PB2
PB2
PR2
COMPONENT2
PR2
IN
L2
L2
R2
R2
TH-50PX20U-P
TA, TB and H-BOARD BLOCK Diagram
H
Rear AV Terminal,Input Select,Audio Board
IC4205
H11
MTS
1 TV1V 1
V
60
TV1
L
3 MPX IN 3 14 MPX IN L OUT 21 59
IN
R
R OUT 22 61
SCL2 SCL
7 SCL2 7 18
8 SDA2 8 SDA2 19 SDA
SCL2 SCL
33
H12
SDA2 34 SDA
AFC1
7 7
S1
28
26 C1
25 R1
Y1
24
L1
23
V1
22
H21
TV2
V
1 TV2V 1 63
IN
7 SCL2 21 S2
7 SCL2
19 C2
8 SDA2 8 SDA2
R2
18
Y2
H22 17
L2
16
AFC2
7 7
15 V2
Q4203
VAO MUTE L
Q4202
IC4204
VAO MUTE R
VAO
3
1 L
5
7 R
5
4 3
6
8 9
AUX0 AUX1
13
L L PROHIBIT
2 1
L H GEQ ON
H L THROUGH
H H PROHIBIT 12
10 11
IC4202
SWITCH
IC4301 IC4302
INPUT SELECT
YPbPr SELECT
Y1
S3 14 74
PB1
C3 12 75
R3 11 76 PR1 DTV1
AV3
IN
IN
Y3 10 78 L1
R1
L3 9 79
V3 8
VYOUT1 VY1
56 57
MAIN
COUT1 C1
AV1 MAIN 58 59
IN
IN OUT
LOUT1 52 63 L1
ROUT1
54 64 R1
VYOUT2 39 66 VY2
SUB
SUB
OUT
C2 IN
COUT2 37 67
5 Y2
7 PB2
MONI.
VOUT
53 Q4303
AV2 OUT
PR2 DTV2
9
MONITOR
IN
IN
VIDEO OUT
L2
11
SD Y
SD 3
12 R2
IN
SD C 5
IC4203
BBE VIVA
L AMP
LOUT
Q4206 8 L IN 1
R AMP
ROUT
Q4205 23 R IN 30
Q4201 AUX1
17
BBE
4 TONE L 5
LOUT
BBE
27 TONE R 26
ROUT
Q4204 18 AUX0
IC4201
EQUALIZER
9 LOUT L IN 7
12 ROUT R IN 14
81
H1 TO DG1
408 S3
409 V3
C3
309
R3
310
210 L3
109 Y3
DVI Y
14 415 DVI Y
DVI PB DVI PB
16 116
DVI PR
DVI 18 DVI PR
316
IN
DVI L
20 217 DVI L
DVI R
21 417 DVI R
YOUT1 46 107
MAIN Y
PBOUT1
44 307 MAIN PB
MAIN PROUT1
43 407 MAIN PR
OUT
LOUT1
41
ROUT1
40
YOUT2 38 405 SUB Y
SUB
PBOUT2
36 206 SUB PB
OUT
PROUT2 35 SUB PR
306
204 AFC1
AFC2
304
111 JPEG Y
JPEG C
211
104 VAO MUTE
103 AUDIO L
303 AUDIO R
TH-50PX20U-P
TA, TB and H-BOARD BLOCK Diagram
TH-50PX20U-P