Detail Block Diagram (2 Of 3) - Panasonic TY-TP42P8-S Service Manual

TY-TP42P8-S / TY-TP50P8-S
9.4.

Detail Block Diagram (2 of 3)

TO
Y-PHOTO 2 BOARD
(J10:50inch)
X-PHOTO 4 BOARD
J17
AD0 1
AD6 7
PHON
8
RANGE1 14
RANGE2 15
LEDON 9
SEL0 10
SEL3 13
PENDATA 16
PHCOM 20
ILEDCOM 21
+5V 17
+5V 18
+5V 19
AD3-6
U1
Y3
3 TO 8
LINE
DECODER
SEL0-3
AD0-2
U3
CH0 INH
U5
PHOUT SW
COM
X-LED 4 BOARD
U1
3 TO 8
AD3-6
LINE
DECODER
U3 U5
A
AD0-2
3 TO 8 B 3 TO 8
SEL0-3
C
LINE LINE
DECODER DECODER
Y3 G2A
G2B
U6
CH0 INH
ILEDOUT SW
+5V
NO
COM
USE
J19
1
AD0
AD6 7
SEL0 10
SEL3 13
LEDON 9
ILEDCOM 21
+5V 17
+5V 18
+5V 19
TY-TP42/50P8-S
Detail Block Diagram (2 of 3)
TO
50inch only
Y-PHOTO 2 BOARD
(J20:42inch)
J23
(42inch)
J11
J16
(50inch)
1 AD0 1
7 AD6 7
8 PHON 8
14 RANGE1 14
15 RANGE2 15
9 LEDON 9
10 SEL0 10
13 SEL3 13
16 PENDATA 16
20 PHCOM 20
21 ILEDCOM 21
17 +5V 17
U8
+5V 18 +5V 18
19 +5V 19
PH.DRV1-6
3 TO 8
LINE
DECODER
U1
PHOTO-
TRANSISTOR
MATRIX
U4
P1-P43
SEL0-3
8ch
PH.SINK1-8
A
ANALOG
B
MULTI-
C
PLEXER
INH
U6
COM
U3
A
PH ON,RANGE1,2
B
OPTICAL
C
CH0
NOISE
CANCEL
PHOUT SW
X
GAIN
Y CONTROL
Z
Q1 Z1
U7
Q1-Q6
L.DRV1-6
LED
DRIVE
U3
Q7-Q14
LED
3 TO 8
L.SINK1-8 SEL0-3
LED
MATRIX
LINE
SINK
L1-L43 DECODER
U6
CH0
ILEDOUT SW
J27
(42inch)
J14
J18
(50inch)
1 1
AD0
7 AD6 7
10 SEL0 10
13 SEL3 13
9 LEDON 9
21 ILEDCOM ILEDCOM 21
+5V 17 +5V 17
18 +5V 18
19 +5V 19
J22
(42inch)
X-PHOTO 3 BOARD
J10
(50inch)
1
7
8
14
15
9
10
13
16
20
21
17
U8,U9
+5V 18
19
AD3-6 PH.DRV1-10
3 TO 8
LINE
DECORDER
PHOTO-
TRANSISTOR
Y2
MATRIX
3 TO 8
U4
P1-P75(42inch)
LINE
P1-P78(50inch)
DECODER
PH.SINK1-8
A
AD0-2 8ch
B
ANALOG
C
MULTI-
PLEXER
INH
COM U6
A
PH ON,RANGE1,2
B
OPTICAL
C
INH
NOISE
U5
CANCEL
X
GAIN
COM Y CONTROL
Z
Q1 Z1
U7
X-LED 3 BOARD
U1,U2
Q1-Q10
3 TO 8
AD3-6 L.DRV1-10
LED
LINE
DRIVE
DECODER
U5
Q11-Q18
A
AD0-2
3 TO 8 LED
B
L.SINK1-8
LED
C LINE MATRIX
DECODER SINK L1-L75
(42inch)
Y2 G2A
G2B L1-L78
(50inch)
INH
+5V
COM
J26
(42inch)
J13
(50inch)
1
7
10
13
9
21
+5V
17
18
19
52
X-PHOTO 2 BOARD
J11
AD0 1
AD6 7
PHON 8
RANGE1 14
RANGE2 15
LEDON 9
SEL0 10
SEL3 13
PENDATA 16
PHCOM 20
ILEDCOM 21
+5V 17
U8,U9
+5V 18
+5V 19
AD3-6 PH.DRV1-10
3 TO 8
LINE
DECORDER
U1
Y1
3 TO 8
U4
LINE
DECORDER
SEL0-3
8ch
A PH.SINK1-8
AD0-2
B ANALOG
C MULTI-
PLEXER
INH
COM U6
U3
A
PH ON,RANGE1,2
B
C
CH0 INH
U5
PHOUT SW
X
COM Y
Z
Q1
Z1
U7
X-LED 2 BOARD
U1,U2
Q1-Q10
3 TO 8
AD3-6
LED
LINE
DRIVE
DECODER
U3 U5
Q11-Q18
A
AD0-2
3 TO 8 B
3 TO 8
SEL0-3 L.SINK1-8
LED
C
LINE
LINE
SINK
DECODER
DECODER
Y1 G2A
G2B
U6
CH0 INH
ILEDOUT SW
+5V
COM
J14
1
AD0
AD6 7
SEL0 10
SEL3 13
LEDON 9
ILEDCOM 21
+5V 17
+5V 18
+5V 19
TY-TP42/50P8-S
Detail Block Diagram (2 of 3)
TO
X-PHOTO 1 BOARD
(J11)
J10
1 AD0
7 AD6
PHON
8
14 RANGE1
15 RANGE2
9 LEDON
10 SEL0
13 SEL3
16 PENDATA
20 PHCOM
21 ILEDCOM
17 +5V
+5V
18 +5V
19 +5V
PHOTO-
TRANSISTOR
MATRIX
P1-P78
OPTICAL
NOISE
CANCEL
GAIN
CONTROL
L.DRV1-10
LED
MATRIX
L1-L78
TO
X-LED 1
BOARD
(J14)
J13
1
AD0
7 AD6
10 SEL0
13 SEL3
9 LEDON
21 ILEDCOM
+5V
17 +5V
18 +5V
19 +5V